Door opening and closing hinge with strong directional fixation function

The invention discloses a door opening and closing hinge with a strong directional fixation function. The door opening and closing hinge comprises a hexagon nut, a first movable leaf, bevel tooth cylindrical gears, springs, a second movable leaf and a circular bolt, wherein a rotating shaft portion of the second movable leaf is provided with a first inner cavity, an inner cavity partition wall and a second inner cavity. The bevel tooth cylindrical gears and the springs are symmetrically arranged in the first inner cavity and the second inner cavity; gears are arranged on the inner wall of the first inner cavity and the inner wall of the second inner cavity, and used for being in meshing connection with the bevel tooth cylindrical gears; the first movable leaf and the second movable leaf are connected together in a rotatable mode through the hexagon nut after the circular bolt penetrates through a rotating shaft of the first movable leaf and a rotating shaft of the second movable leaf. The ...

Carbon brush for monophase current tester

The invention discloses a carbon brush for a monophase current tester, which comprises a coil connected with the carbon brush, a spring connected with the carbon brush, a fixing bracket connected with a fixing sleeve, a baffle plate arranged in the fixing sleeve, and a pressure spring, wherein the baffle plate is connected with an adjusting threaded rod and screws to the left by the adjusting threaded rod; and the adjusting threaded rod is arranged on the fixing sleeve through a screw hole. The invention solves the problems of carbon brush abrasion, insufficient pressure and unstable outputted voltage and current in the test process, and can not affect the test on site.

Device for fixing micrometer to workbench

The invention discloses a device for fixing a micrometer to a workbench. The device comprises a fixing block fixed to the workbench. A shaft is arranged on the fixing block, the shaft is sleeved with a rotatable connecting block, a telescopic rod is inserted into the connecting block, one end of the telescopic rod is fixed into the connecting block, the other end of the telescopic rod is movably connected with a clamping block, a clamping groove for clamping the micrometer is formed in the clamping block, a check block is fixed to the outer end of the clamping block through a bolt, an adjusting bolt is arranged on the check block, the telescopic rod comprises a first rod and a second rod, the second rod is inserted into the first rod, a groove is formed in the first rod, an adjusting bolt is arranged on the second rod and clamped in the groove, and the other end of the telescopic rod is movably connected with the clamping block through a bolt. According to the device, the micrometer can ...

Online intelligent control water injection well choke device of water injection well

The utility model provides an online intelligent control water injection well choke device of water injection well, including actuating mechanism, drive mechanism, the balanced valve mechanism that connects gradually from bottom to top. Actuating mechanism mainly is motor reducer, shaft coupling, thrust bearing, trapezoidal lead screw, drive mechanism mainly is connecting rod, travel switch, outer tube, balanced valve mechanism mainly is sealed cylinder body, piston, balanced case, balanced valve barrel. Actuating mechanism's trapezoidal lead screw passes through the screw to be connected with drive mechanism's connecting rod, drive mechanism's connecting rod and balanced valve mechanism suit. The utility model discloses a motor gearbox drive adjusts the directly volume of changing the seperated layer water injection of water injection well choke size on line, need not throw and drag for the water injection well choke, need not go into the measure and regulate instrument down and dock the ...

Optical polyester film and preparation method thereof

The invention relates to an optical polyester film and preparation method thereof. The polyester film comprises a basement membrane, at least one side of the basement membrane is coated with a ground coat, the basement membrane contains filler with single grain diameter, the ground coat contains adhesion agent and two granular fillers with different average grain diameters, and the average grain diameter of the large granular filler is more than twice that of the small granular filler. The invention has favourable adhesiveness, transparency and evenness, especially has favourable scratch resistance, rolling property and reprocessing property and is applicable to the display device fields of LCD, CRT, PDP, EL and the like and the top grade IMD inmold decoration processing field.

Method for processing contour of flexible circuit board

The invention provides a method for processing the contour of a flexible circuit board, which uses a first mould and a second mould, wherein the first mould comprises at least one first punch, and the number and the shape of first punches are the same as those of gaps between the flexible circuit boards arranged on flexible circuit board materials; the second mould comprises at least one second punch, the shape of the second punch is the same as the contour of the flexible circuit board, the flexible circuit board materials are delivered to a processing area of the first mould to cut out the gaps between the flexible circuit boards arranged on the flexible circuit board materials by the punch; and the outer edges of the flexible circuit board formed by the processing are cut by the secondmould so as to form the finished product of the flexible circuit board. Because the shape of the punches is designed to be the same as that of the gaps between the flexible circuit boards arranged onthe ...

Oil agent test device and test method

The invention provides an oiling agent testing device and method, the oiling agent testing device comprises a base body with a first mounting surface and a first groove body which is arranged on the first mounting surface and is provided with a first space, and the first space is used for containing qualified oiling agents; the second tank body is arranged on one side of the first tank body in the first direction and is provided with a second space, and the second space is used for containing an oiling agent to be detected; the tows are arranged in the second direction, and the second direction is perpendicular to the first direction; the first pressing mechanism is arranged above the first groove body, provided with a first pressing end and used for driving the tow group to enter the first space; the second pressing mechanism is arranged above the second tank body, is provided with a second pressing end and is used for immersing one tow into the second space; the first driving assembly ...

Method for treating condensed mother solution of azodicarbonamide foaming agent

The invention discloses a method for treating condensed mother solution of an azodicarbonamide foaming agent. In the method, after the intermediate biurea is reclaimed from the condensed mother solution, the mother solution is heated and boiled to distill and remove solvent under a condition that the pressure is between 0.055 and 0.08MPa; distillation is completed when the temperature of the condensed mother solution is between 84 and 110 DEG C, and sodium sulfate is obtained through insulation and filtration, wherein the filtrate is a solution containing ammonium chloride; and the solution containing the ammonium chloride is cooled to the temperature of between 30 and 40 DEG C to separate out ammonium chloride crystals, and the crystals are insulated and filtered to obtain the ammonium chloride. The treatment method in the invention converts ammoniacal nitrogen and inorganic salt in the condensed mother solution into potassium sulfate and ammonium chloride with practical economic value ...

Children's safety prevents swallowing pen

The utility model discloses a children's safety prevents swallowing pen, include the cap for brush that has the cap clamp and arrange in pen -holder in the cap for brush, be provided with the gear on the cap for brush lateral wall, the cap presss from both sides and sets up on the gear, lieing in on the pen -holder of gear wheel position department spaced apart be equipped with a plurality of with annular groove on the gear assorted, be provided with ka tai on the gear, lieing in offered on the cap for brush lateral wall of ka tai position department and blocked platform assorted draw -in groove. The utility model discloses the advantage lies in avoiding children to swallow cap for brush mistake when playing or using, a security when having increased children and using.

Gear pair structure walking robot

The invention discloses a gear pair structure walking robot. The gear pair structure walking robot comprises a motor, a driving gear, a first driven gear, a second driven gear, a third gear, a fourth gear, an internal supporting frame, a first rotary shaft, a second rotary shaft, an external supporting plate and supporting soles; the motor drives the first rotary shaft and the second rotary shaft to rotate in the front direction and the opposite direction through the driving gear, the first driven gear and the second driven gear and accordingly drives the third gear and the fourth gear to drive the external supporting plate and the foot soles to perform arc back and forth movement within a certain angle through the third gear and the fourth gear; accordingly vertical and back and forth movement of the foot soles of a robot is achieved. The gear pair structure walking robot has the advantages that the structural size is small and exquisite, machining and installation of parts are convenient ...

Early-strength low-calcium Portland cement and preparation method thereof

The invention discloses early-strength low-calcium Portland cement and a preparation method thereof. The early-strength low-calcium Portland cement comprises a clinker mixture composed of 95 wt% of minerals and 5 wt% of dihydrate gypsum, and the minerals comprise, by mass, 30%-40% of C3S, 10%-20% of C2S, 15%-25% of C3A and 15%-30% of C4AF; limestone is also included, and the mixing amount of the limestone accounts for 6-15% of the total mass of the clinker mixture. The preparation method comprises the following steps: (1) weighing limestone, fly ash, clay, shale and iron powder as mineral rawmaterials according to the mineral composition, calcining to obtain minerals, and adding dihydrate gypsum to obtain a clinker mixture; and (2) externally doping limestone into the obtained clinker mixture, and grinding to obtain the early-strength low-calcium Portland cement. The early-strength low-calcium Portland cement has high early-stage and later-stage mechanical strength, and because the content ...

Recovering device and method for waste spinning solution produced in carbon fiber precursor preparation processes

The invention provides a recovering device and a method for a waste spinning solution produced in carbon fiber precursor preparation processes. The device at least comprises a waste spinning solution collecting tank, a polymerization liquid defoaming kettle, a precision filter and a cyclic shearing pump. The waste spinning solution collecting tank comprises a tank body, a heat exchanger, a hot-water feeding pipe, a hot-water discharging pipe, a temperature controller, nozzles, a solvent feeding pipe, a nitrogen feeding pipe, a waste spinning solution inlet, a waste spinning solution outlet, a cyclic mixed solution inlet and a cyclic mixed solution outlet. The method includes: collecting the waste spinning solution into the waste spinning solution collecting tank, injecting a solvent into the waste spinning solution collecting tank through the nozzles, homogenizing through the cyclic shearing pump, feeding nitrogen for protection, filtering by the precision filter, and defoaming by the polymerization ...

High plasticity magnesium alloy

The invention discloses a high plasticity magnesium alloy, which comprises the compositions of magnesium, zinc and zirconium in set percentage by mass, and also comprises 23 to27 mass percent of lithium, 7 to 9 mass percent of manganese, and 4 to 6 mass percent of yttrium; and the mass percentages of magnesium, zinc and zirconium are 80 to 83 percent , 12 to 15 percent and 2 to 8 percent respectively. The high plasticity magnesium alloy avoids forming intermetallic compounds by adding such alloying element such as lithium, manganese and yttrium to change the crystal form of magnesium alloy, thereby improving the ductility and the processability of magnesium alloy.

Offshore oilfield multi-layer real-time layered measurement and control safety production pipe column and use method

The invention relates to a production pipe column for oil development and a use method, in particular to a multilayer real-time layered measurement and control safety production pipe column for an offshore oilfield. The production pipe column comprises an electric pump hanging load cylinder, an electric pump unit, an electric pump cable, a signal cable, a safety valve, a cable passing packer, a hydraulic conduction connector, a check valve, a hydraulic drainage device, a plurality of compression type packers, a plurality of measurement and control devices, an oil pipe, a screwed plug and a pressure transmission pipeline. The tubular column has the advantages that the multi-layer layering real-time measurement and control function of an offshore oilfield electric pump lifting well can be achieved, the oil well utilization efficiency is improved, the problem that the electric pump lifting well large in offshore application scale cannot achieve layering due to the fact that setting of a compression ...

Door closing and opening hinge capable of achieving opening and closing in certain angle

The invention discloses a door closing and opening hinge capable of achieving opening and closing in a certain angle. The door closing and opening hinge comprises a door hinge shell, a main hinge shell, two sets of brake devices and a friction sheet. The brake devices are symmetrically arranged on the left corner and the right corner of the main hinge shell. Each brake device comprises a hexagon bolt, spring installation supporting frames which are symmetrically arranged on the left corner and the right corner of the main hinge shell, a spring and a hexagon nut. The hexagon bolts penetrate through the door hinge shell and the spring installation supporting frames in sequence and then the hexagon bolts and the hexagon nuts are fixed. The door hinge shell and the main hinge shell are connected together in a rotatable mode. The springs are arranged on the hexagon bolts in a sleeved mode and installed in the spring installation supporting frames. The friction sheet is round and an arc protruding ...

Prevent changeing anchoring packer

The utility model discloses a prevent changeing anchoring packer, include the center tube and install the packing element on the center tube, the center tube includes last center tube that top -down connected gradually and center tube down, and the packing element suit is at last center tube outer wall, outside empty the overlapping of center tube has a cover down, and cover outside empty overlapping in top has the overcoat, form the annular space that is used for installing the spring between overcoat and the top cover, the below of packing element sets gradually cone and slips, and the cone upper end is connected with the fender cap that the packing element lower extreme set up, annular space in the bottom entry of slips between the overcoat and in the gesture of the mutual oppression of spring formation, outer circular conical surface is offered to cone lower extreme outer wall, slips upper end inner wall offer with the match internal cone face of adaptation of the outer circular conical ...

Method for producing high-carbon chromium bearing steel by double retarded cooling process

The invention relates to a method for producing high carbon chromium bearing steel through a double slow cooling process and belongs to the technical field of high carbon chromium bearing steel production. Through controlling a terminal of a converter, the method adopts A1 deep deoxidation for slag skimming and tapping; high-alkalinity low-oxidizability slag in an LF furnace is refined; a qualified casting blank of the bearing steel is produced through continuous casting and protective pouring and is hung in a slow cooling pit of the casting blank at high temperature; and the cast blanking atthe high temperature is slowly cooled to release hydrogen and stress of the casting blank. In the rolling process, a heating process of a heating furnace which is kept at high temperature for a long time ensures that the strip shape of a carbide of a rolling material and the eliquation of the carbide meet the standard requirement; after the rolling, a cooling bed is rapidly removed in order that the ...

Automatic height adjusting device for dry-jet wet-spinning spinneret and control method

The invention provides a dry-jet wet-spinning spinneret height automatic adjusting device and a control method, the dry-jet wet-spinning spinneret height automatic adjusting device comprises a solidification liquid box body, the solidification liquid box body is internally provided with a first space, the first space is used for containing solidification liquid, and the top of the solidification liquid box body is provided with a first opening; the spinning nozzle is arranged above the first opening, a spinning hole is formed in the side, close to the first opening, of the spinning nozzle, and the spinning nozzle is used for spraying protofilament liquid into the solidification liquid from the spinning hole; the driving assembly is connected with the spinning nozzle and used for driving the spinning nozzle to move close to or away from the first opening side in the first direction; the driving assembly can automatically drive the spinneret to move in the first direction, then the distance ...

Filter paper

The invention belongs to the technical field of filter part manufacturing, and particularly relates to filter paper, which comprises a first filter material and a second filter material, the front surface of the first filter material is hermetically connected with the front surface of the second filter material, the projection of the first filter material on a plane A is wave-shaped, the projection of the second filter material in the plane A is rectangular, the length line of the first filter material is in the plane A, and the length line of the second filter material is in the plane A; one end of a space formed by the first filter material and the second filter material in the direction perpendicular to the plane A is open, and the other end of the space is in transition closed connection; the problem that the air flow in the fillet-shaped space is not filtered and directly flows out from the crushed position due to the fact that the filter paper is easily broken or the air flow crushes ...

Big inclination water injection well capillary hydraulic pressure reinforcement pulling and running tool

The utility model discloses a big inclination water injection well capillary hydraulic pressure reinforcement pulling and running tool, drag for claw mechanism including salvaging main part, hydraulic boosting mechanism, hydraulic force amplifier, installing what salvage the main part lower extreme. The utility model provides a hydraulic boosting mechanism mainly drags for the instrument in down difficulty of inclined shaft section and design to throwing, and the throttle pressure differential that utilizes leather cup and oil pipe clearance to overflow the production provides down power in the inclined shaft section for the instrument, prevents that the instrument from meeting midway to hinder, guarantees to walk to preset position under the instrument. The utility model provides a dead phenomenon mainly takes place to block and designs with the seating nipple to water injection mandrel core when the inclined shaft section is salvaged is easy for hydraulic force amplifier, including slips ...

Climb wall robot of climbing over walls

The utility model discloses a climb wall robot of climbing over walls, including sucking disc base, foot sucking disc, returning face plate, apron, rotation connecting rod, alternately on open slot, the returning face plate opening, controlling means bottom connecting rod, long connecting rod, support link, short connecting rod, screw, nut, step motor, steering wheel, the inside steering wheel that links to each other of long connecting rod, the inside steering wheel that links to each other of short connecting rod, support link inside link to each other steering wheel, base sucking disc opening spout, the returning face plate, the returning face plate is connected with sucking disc base, can overturns on sucking disc base, and the apron is connected with the returning face plate through screw, nut, the utility model discloses a sucking disc below sucking disc base and the foot sucking disc adsorbs in the wall, the utility model discloses the rotation of circular telegram motivation, the ...

Belt buckle die casting separator

The invention belongs to die casting separation equipment and particularly relates to a belt buckle die casting separator comprising a chain plate conveying device, a slag bag separating device, a workpiece separating device, a power device, a waste material recycling bin, a workpiece recycling bin, a rack and a material pressing device. The chain plate conveying device is driven by the power device to rotate. After a belt buckle die casting is put in a positioning hole and a positioning pin on the chain plate conveying device and fixed, the belt buckle die casting is conveyed into the slag bag separating device by the chain plate conveying device to realize the bending and the separating of a slag bag and a belt buckle, and then the belt buckle die casting is continuously conveyed forwards into the workpiece separating device to realize the bending and the separating of the belt buckle and a pouring gate. The slag bag, the belt buckle and the pouring gate separated from one another respectively ...

Water level measuring device for hydrology

The utility model discloses a water level measuring device for hydrology, which comprises a mounting plate, a rotating ball, a connecting plate and a first connecting spring, the middle position of one side of the mounting plate is provided with an expansion fixing bolt, the middle position of the other side of the mounting plate is provided with the rotating ball, and the middle position of the inner side of the rotating ball is rotatably connected with a central shaft; and the top end of the central shaft is rotationally connected with a rotating rod. The first connecting block is installed in the middle of the top end of the connecting plate, the first connecting spring is installed in the middle of the first connecting block, the second connecting block is installed in the middle of the top end of the first connecting spring, and the tension analyzing device is installed at the top end of the second connecting block. The device is installed underwater in the using process, after the ...

Diabetes treating agent and its made method

The diabets therapeutic powder uses natural edible plants as raw material. Its prescription is organized by traditional Chinese medical theory, according to the different character of each ingredient, after the preprocessing of frozen dry or air-dry cracking and the solvent extracting, the powder is made, through curing and sterilization. The prepared powder contains various effective components such as vegetable albumin, cellulose and 17 varieties of amino acids and also contains choline compounds flavone compound, para-insulin and trace elements, due to the comprehensive function of the medicines, the curative effect on diabets is notable.

Well mouth test blowout preventer of water injection well

The invention discloses a well mouth test blowout preventer for a water injection well. The well mouth test blowout preventer mainly comprises a blowout-preventing pipe; a blowout-preventing box is arranged at the upper end of the blowout-preventing pipe; the lower end of the blowout-preventing pipe is connected with a sealing pin; the blowout-preventing pipe and the sealing pin are connected into a whole, then are arranged on a lifting device in a sleeved mode and are arranged on or dismounted from a well mouth through the lifting device. A driving device for lowering and lifting a test instrument is arranged on the blowout-preventing box in a sleeved mode. The blowout preventer can effectively improve the test success rate of a high-pressure water injection well, and meanwhile the test accuracy and the water distribution percent of pass can be improved. The problem of testing of the high-pressure water injection well is solved, and the blowout preventer has the higher application and ...

Delta parallel mechanical structure based 3D printer

The invention discloses a delta parallel mechanical structure based 3D printer which comprises tackles, a carbon rod, a heating head, a power supply, a data interface, a display module, a guide rail slider mechanism and a reel; a delta parallel mechanical structure controls a printing head to move in X, Y and Z directions respectively by using a first motor, a second motor and a third motor so as to realize the translation and up-and-down moving of the printing head, and then controls the supply of printing materials by using a fourth motor; and the first motor, the second motor, the third motor and the three tackles are linked together by a belt, and through the rotating of the belt, the tackles move to control the moving of the delta parallel mechanical structure, thereby controlling the 3D printer to carry out printing. The 3D printer disclosed by the invention is simple in structure, low in cost, strong in durability and small in volume.

Method for manufacturing high plastic magnesium alloy ingot

The invention discloses a method for manufacturing high-plasticity magnesium alloy ingots. the method comprises the following steps: magnesium, zinc and zirconium in set mass ratio are put into a crucible, wherein the proportion of the magnesium, the zinc and the zirconium is 80 to 83 percent, 12 to 15 percent and 2 to 8 percent respectively; the crucible is put in a furnace which is vacuum or full of inert gas; materials in the crucible are heated and melted to form a homogeneous molten substrate; lithium accounting for 23 to 27 percent of total mass, manganese accounting for 7 to 9 percent of total mass and yttrium accounting for 4 to 6 percent of total mass are added to the molten substrate and well stirred; and the molten substrate mixed with the lithium, the manganese and the yttriumis injected into a mold, cooled and solidified to form the ingots. The method for manufacturing high-ductility magnesium alloy changes the crystal shape of the magnesium alloy by adding the lithium, the ...

Method for designing wind turbine airfoil by using Bessel function curve

The invention discloses a method for designing a wind turbine airfoil by using a Bessel function curve. According to the method, the third-order Bessel function is adopted and can represent a section of curve through four control points only, and in addition, the starting point and the end point are fixed, so that only two control points are required to be changed for a section of the curve; each of an upper wing surface and a lower wing surface of the airfoil is represented by a section of curve, the starting points and the end points of the upper wing surface and the lower wing surface respectively coincide, and then the staring points and the end points are in smooth connection. According to the invention, the airfoil profile can be controlled more conveniently and effectively by using several points in space, so that optimization design time of the airfoil is shortened, and airfoil design efficiency is improved; the designed airfoil has an extremely high lift coefficient, so that chord ...

Method for detecting magnesium alloy sacrificial anode electrochemical performance

The invention discloses a test method for testing electrochemical properties of magnesium alloy sacrificial anodes. The test method includes the following steps: at least two magnesium alloy sacrificial anode samples with set mass, the same number of steel cathode experiment crucibles as the samples, and a saturated calcium sulphate-magnesium hydroxide solution are prepared; the saturated calcium sulphate-magnesium hydroxide solution is poured into the steel cathode experiment crucibles, and then, the magnesium alloy sacrificial anode samples are inserted into the steel cathode experiment crucibles; a DC electrical source, a first coulometer, the magnesium alloy sacrificial anode samples and the steel cathode experiment crucibles are communicated with each other and constitute a series galvanic circle; a constant current is introduced into the galvanic circle, and the constant current is terminated after a set test period ends; then, the electrical quantity passing through the magnesium ...

Cleaning system and cleaning method of dry-jet wet spinning spinneret plate for preparing polyacrylonitrile protofilaments

The invention relates to a cleaning system and a cleaning method of a dry-jet wet spinning spinneret plate for preparing polyacrylonitrile protofilaments. The cleaning system comprises a pre-soaking device used for pre-soaking the spinneret plate, a cyclic cleaning device used for carrying out cyclic cleaning on the spinneret plate and a steam treatment device used for carrying out steam treatment on the spinneret plate. The cleaning method comprises the following steps of pre-cleaning the spinneret plate by utilizing DMSO (Dimethylsulfoxide); flushing the pre-soaked spinneret plate through desalted water; cyclically cleaning the spinneret plate by the DMSO; flushing the cyclically cleaned spinneret plate through the desalted water; carrying out steam treatment on the spinneret plate through the steam; carrying out ultrasonic cleaning on the spinneret plate subjected to the stream treatment; blowing the spinneret plate subjected to the ultrasonic cleaning by compressed air; detecting the ...

Pre-throttling anti-stabbing water distributor

The invention discloses a pre-throttling anti-stabbing water distributor which mainly comprises an upper joint, a lower joint, an upper central pipe, a lower central pipe, a piston assembly and a throttle pipe. The upper end of the upper central pipe is connected to the upper joint, the lower end of the lower central pipe is connected to the lower joint, the middle of the upper central pipe and the middle of the lower central pipe are both connected to an upper flow guide sleeve, a lower flow guide sleeve is arranged at the bottom of the lower central pipe, the upper flow guide sleeve is connected with the lower flow guide sleeve through the throttle pipe, and the upper central pipe located above the upper flow guide sleeve is sleeved with the piston assembly. The piston assembly comprises a control piston and a seal piston, an annular piston cavity is formed between the control piston and the upper central pipe, the piston cavity is communicated with the upper flow guide sleeve below the ...

Dual fail -safe type inserted lift scaffold prevents anti -falling device that inclines

The utility model provides a dual fail -safe type inserted lift scaffold prevents anti -falling device that inclines, include support, I -steel stand, anti -toppling device and anti -falling device and prevent weighing down safeties, prevent weighing down safeties including insurance dog, insurance plectrum and first hinge pin, the insurance dog is " L " type, through first hinge pin install in the lower part of support, first hinge pin excircle cover has first torsional spring, the insurance plectrum with the insurance dog passes through the A second hinge hub connection, A second hinge off -axial circle cover has the second torsional spring, is provided with the second pull ring on the insurance plectrum, it has the through -hole to open on the insurance dog, have the cable, the cable passes the through -hole. The utility model discloses simple structure, can take place the action when the ejector pin lost efficacy preventing weighing down, and prevent that it forms the linkage to weigh ...

Well mouth sleeve pipe tuningout ware

The utility model discloses a well mouth sleeve pipe tuningout ware, including adjustment mechanism, fixed establishment, fixed establishment includes three end to end's clamp, adjustment mechanism includes tuningout jackscrew, regulating plate, and the radial hole of clamp is seted up at each clamp center, installation tuningout jackscrew in the radial hole of clamp, and each clamp inboard all sets up a regulating plate, tuningout jackscrew top is at the regulating plate outer wall. Fixed establishment still includes the fixed plate, and each clamp inboard all sets up a fixed plate, and the fixed plate is located between clamp and the regulating plate, the clamp surrounds at the fixed plate outer wall. Radial screw hole is seted up at the fixed plate center, and this radial screw hole isunanimous with the radial hole of the clamp axis at clamp center, the tuningout jackscrew is also installed simultaneously in this radial screw hole. Regulating plate upper end and lower extreme all are ...

MULTIBAND VEHICULAR ANTENNA ASSEMBLY

Exemplary embodiments are disclosed of multiband vehicular antenna assemblies with Global Navigation Satellite System (GNSS) capabilities. In exemplary embodiments, a multiband antenna assembly is operable with more than two satellite navigation system frequencies (e.g., Global Positioning System (GPS), BeiDou Navigation Satellite System (BDS), the Russian Global Navigation Satellite System (GLONASS), etc.). For example, a multiband antenna assembly may include a first patch antenna operable with at least three different satellite navigation system frequencies, e.g., GPS, BeiDou, and GLONASS, etc. The first patch antenna may be stacked on a second patch antenna. The second patch antenna may be operable with other frequencies, such as Satellite Digital Audio Radio Services (SDARS) signals (e.g., Sirius XM, etc.). The antenna assembly may also include a coupler that couples the signals from the feed ports of the first patch antenna.

Method for coordinating a plurality of independent measuring apparatuses in automatic operation

The invention relates to a large measuring apparatus control system, in particular to a method for using a computer for automatic control when needing an apparatus group consisting of a plurality of independent measuring apparatus systems to coordinate in operation. The method for coordinating a plurality of independent measuring apparatuses in automatic operation comprises the following steps of: connecting the control computers of the whole apparatus group through network equipment, selecting the control computer of an apparatus as the host machine of the apparatus group, controlling the operation time sequences of the apparatus group through the host machine, sending a message to the control computer of each apparatus, and after the control computer of each apparatus receives the corresponding message, locally imitating the action of a mouse keyboard and directly operating a control interface of the apparatus. The method is suitable for coordinating the measuring apparatus group with ...

Xylylene diisocyanate rectification apparatus and rectification method thereof

The invention provides a xylylene diisocyanate rectification apparatus and a rectification method thereof. The apparatus comprises an organic solvent heater, a crude product reboiler, a rectifying tower, a first order condenser, a finished product pot, a crude solvent reception pot, a high vacuum set and a tail gas processing system, and the above components are connected according to a specific order to form a closed loop. The rectification apparatus has the advantages of scientific design, reasonable structure, energy saving, low production cost and reliable production quality. The method utilizes an organic solvent, provides a stable gas source for rectification, reduces the pressure drop of xylylene diisocyanate in the rectifying tower, and improves the separation efficiency and the product purity; and the organic solvent can be easily separated from xylylene diisocyanate, and does not form a new impurity. The method has the advantages of scientific design, simple operation, good rectification ...

Integrated hollow confecting-polymer device

The invention discloses an integrated hollow confecting-polymer device. The device comprises an upper connector, an adjusting ring, a limit body, a spring, a control piston, a confecting-polymer sleeve, a confecting-polymer core, a sealing piston, a sealing sleeve, a connecting sleeve and a lower connector, wherein the upper connector is respectively connected with the adjusting ring and the limit body; the limit body is connected with the confecting-polymer sleeve, the confecting-polymer core and the lower connector in turn; the control piston, the sealing piston, the sealing sleeve and the connecting sleeve are respectively arranged and connected outside the confecting-polymer sleeve in turn; and the spring is arranged between the adjusting ring and the control piston. The device has the characteristics that: the confecting-polymer core can be carried to descend a well directly without throwing a dead core; an integrated operation of setting and polymer-injection is realized; a construction ...

Device and method for delivering core of injection well

The invention discloses a device and method for delivering a core of an injection well. The device comprises a sealing joint, a central rod and a lock claw. The sealing joint is arranged at the upper end of a wellhead blowout-prevention pipe, the central rod is sleeved with the sealing joint in a vertical-penetrating mode, the lock claw is connected to the lower end of the sealing joint and arranged on the outer side of the lower segment of the central rod in a sleeved mode at the same time, the outer side face of the lower end of the central rod and the inner side face of the lower end of the lock claw are designed to be corresponding conical surfaces, the conical inner side face of the lock clamp is rigidly extruded by the conical outer side face of the central rod through the axial movement of the central rod, and the lock claw is opened outwards and reset inwards. According to the device and method, the problem that the lower end of the core is extruded by an annular groove of a gate ...

High plasticity magnesium alloy

The invention discloses a high plasticity magnesium alloy, which comprises the compositions of magnesium, zinc and zirconium in set percentage by mass, and also comprises 23 to27 mass percent of lithium, 7 to 9 mass percent of manganese, and 4 to 6 mass percent of yttrium; and the mass percentages of magnesium, zinc and zirconium are 80 to 83 percent , 12 to 15 percent and 2 to 8 percent respectively. The high plasticity magnesium alloy avoids forming intermetallic compounds by adding such alloying element such as lithium, manganese and yttrium to change the crystal form of magnesium alloy, thereby improving the ductility and the processability of magnesium alloy.

Exempt from to throw and drag for real -time observing and controlling water injection system

The utility model provides an exempt from to throw and drag for real -time observing and controlling water injection system, this system includes ground control ware and the unit of measure and regulate water distribution in the pit, unit of measure and regulate water distribution in the pit and notes water piping connection, and including at least one measure and regulate water injection mandrel in the pit, this ground control ware is connected in this measure and regulate water injection mandrel in the pit, and measure and regulate water injection mandrel is in the pit given to transmission settlement flow value, thereby water injection well choke aperture regulation water injection rate is adjusted according to setting for the flow value to the measure and regulate water injection mandrel in the pit, and the flow of measurement water injection level, pressure and temperature value, the flow of the water injection level that will measure again, pressure and temperature value feed back ...

Deformed magnesium alloy for high speed squeezing

The invention discloses a wrought magnesium alloy for high-speed extrusion, which comprises the following compositions in mass percentage of total alloy mass: 75 to 77 percent of pure magnesium ingot,5 to 7 percent of pure aluminum ingot, 2 to 3 percent of pure zinc ingot, 7 to 9 percent of pure manganese, 3 to 4 percent of pure lithium, and 1 to 3 percent of pure zirconium; wherein the grain fineness of the wrought magnesium alloy is smaller than 15 mu m. The extrusion speed of the wrought magnesium alloy is remarkably improved and can reach 20 meters per minute.

Crawling robot control system capable of controlling robot through Bluetooth mobile phone

The invention relates to a crawling robot control system capable of controlling a robot through a Bluetooth mobile phone. The crawling robot control system comprises an Arduino 2560 single-chip microcomputer, two two-phase four-wire Nema 17 stepping motors, two L298N stepping motor drive chips, one XM-15B Bluetooth module, a 12V-2.6A storage battery and one huisheng Sg90 steering engine. In work, the Bluetooth of an android mobile phone is turned on and sets up connection with the Arduino 2560 single-chip microcomputer, signals are sent to the single-chip microcomputer through the Bluetooth 2.1 app-BluetoothChat at a client side of the android mobile phone, the single-chip microcomputer receives the signals and sends characters to the stepping motors, and the stepping motors are driven to rotate. The crawling robot control system is remotely controlled by the mobile phone end through the Bluetooth, and is high in anti-jamming capacity, good in stability and high in reliability. The surrounding ...

High-throughput multi-sample multi-target sing-base resolution methylation level detection method

The invention relates to a high-throughput multi-sample multi-target sing-base-resolution methylation level detection method. The invention also provides a BSP primer suitable for sequencing human genome CpG methylation level. The method is suitable for genome DNA detection of micro-sample. By utilizing the high-throughput multi-sample multi-target sing-base-resolution methylation level detection method, high-throughput detection can be realized, the detection efficiency is high, the cost is low, and the method can be joined with the newest high-throughput sequencing technology.

Magnesium slag silicate cement and method of producing the same

The invention discloses a magnesium slag silicate cement and a manufacturing method thereof. The magnesium slag silicate cement comprises components such as cement clinker, gypsum and magnesium slag, wherein the cement clinker and the gypsum account for more than 60 percent and less than or equal to 80 percent by weight; and the magnesium slag accounts for more than or equal to 20 percent and less than 30 percent by weight. The invention also discloses a method for manufacturing the magnesium slag silicate cement, which comprises a step of ball-milling the cement clinker, and also comprises the following steps: ball-milling magnesium slag granules, adding water into the ball-milled magnesium slag in a stirring mill and continuously grinding the magnesium slag into powder; heating the powder magnesium slag to between 450 and 500 DEG C, and quenching the heated powder magnesium slag to between 40 and 50 DEG C by water; and removing the moisture from the water-quenched magnesium slag, cooling ...

Concentric long -term layering water injection device of binary channels

The utility model provides a concentric long -term layering water injection device of binary channels, wherein the deblocking controller, first bridge type auto -lock expansion packer, the first bridge type that connect gradually including top -down of device is prevented returning and is told water injection mandrel, second bridge type auto -lock expansion packer, second bridge type and prevent returning and tell the water injection mandrel, and wherein first bridge type is prevented returning and is told the water injection mandrel and be located first water injection layer, and the second bridge type is prevented returning and is told the water injection mandrel and be located second water injection layer. The second bridge type is prevented returning and is told the water injection mandrel bottom and connect cleanout valve. Packer deblocking not when stopping annotating, pressure differential can not result in the packer deblocking yet between the layer, utilizes reverse well washing ...

Method for producing high-carbon chromium bearing steel by double retarded cooling process

The invention relates to a method for producing high carbon chromium bearing steel through a double slow cooling process and belongs to the technical field of high carbon chromium bearing steel production. Through controlling a terminal of a converter, the method adopts A1 deep deoxidation for slag skimming and tapping; high-alkalinity low-oxidizability slag in an LF furnace is refined; a qualified casting blank of the bearing steel is produced through continuous casting and protective pouring and is hung in a slow cooling pit of the casting blank at high temperature; and the cast blanking at the high temperature is slowly cooled to release hydrogen and stress of the casting blank. In the rolling process, a heating process of a heating furnace which is kept at high temperature for a long time ensures that the strip shape of a carbide of a rolling material and the eliquation of the carbide meet the standard requirement; after the rolling, a cooling bed is rapidly removed in order that the ...

Lift -draw style nursing is stored up drug and is gone out medicine bottle

The utility model belongs to the technical field of the nursing, concretely relates to lift -draw style nursing is stored up drug and is gone out medicine bottle. The lift -draw style nursing is stored up drug and is gone out medicine bottle includes drug storage box, interior box, screw thread bottom and pushes away the drug pole, be equipped with interior box in the drug storage box, drug storage box bottom is equipped with the screw thread bottom, and the screw thread bottom passes through hickey and drug storage box threaded connection, screw thread bottom center part is equipped with and pushes away the drug pole, push away the drug pole pass in the play drug mouth department of box bottom portion to drug storage box upper end, go out drug mouth one side and be equipped with into drug flap, push away drug pole upper end and be equipped with flourishing drug groove, be located pushing away of a drug mouth downside and be equipped with a plurality of buckles on the drug pole, screw thread ...

Downhole graphene heat conduction temperature difference method flowmeter and using method

The invention relates to the technical field of underground fluid flow measurement, in particular to an underground graphene heat conduction temperature difference method flowmeter and a using method. The device comprises two adapters, two cable joints, two heat insulation blocks, a heating support, a graphene heating belt, a plurality of temperature sensors, a protective shell, a circuit bin and a temperature sensor. The first adapter, the first cable connector, the first heat insulation block, the heating support, the second heat insulation block, the circuit bin, the second cable connector and the second adapter are sequentially connected and arranged in the protective shell. The graphene heating belt is fixed on the heating bracket; and a plurality of temperature sensors are respectively arranged on the heating bracket, the circuit bin and the second cable joint. The flow meter can be used for layered measurement, can be conveniently used by other instruments, and is high in measurement ...

Corrugated pipe tension and compression resistance test bench

The utility model discloses a tension and compression resistance test bench for corrugated pipes, which is characterized in that a guide rail is vertically arranged in a frame, and a lower bedplate and an upper bedplate are arranged on the guide rail; the top of the upper platen is connected with one end of a connecting rod, and the other end of the connecting rod is connected to a cam which is connected with a second motor through a transmission structure. During testing, the second motor drives the cam through the transmission structure so as to drive the upper platen to slide up and down along the guide rail. According to the utility model, the second motor drives the upper platen to stretch and retract the corrugated pipe through the cam, tension and compression test is carried out on the corrugated pipe, tension and pressure conditions borne by the corrugated pipe in an actual road operation condition are simulated through the test, and aging of a main body of the corrugated pipe is ...

Method for manufacturing high plastic magnesium alloy ingot

The invention discloses a method for manufacturing high-plasticity magnesium alloy ingots. the method comprises the following steps: magnesium, zinc and zirconium in set mass ratio are put into a crucible, wherein the proportion of the magnesium, the zinc and the zirconium is 80 to 83 percent, 12 to 15 percent and 2 to 8 percent respectively; the crucible is put in a furnace which is vacuum or full of inert gas; materials in the crucible are heated and melted to form a homogeneous molten substrate; lithium accounting for 23 to 27 percent of total mass, manganese accounting for 7 to 9 percent of total mass and yttrium accounting for 4 to 6 percent of total mass are added to the molten substrate and well stirred; and the molten substrate mixed with the lithium, the manganese and the yttrium is injected into a mold, cooled and solidified to form the ingots. The method for manufacturing high-ductility magnesium alloy changes the crystal shape of the magnesium alloy by adding the lithium, the ...

System for vehicle antenna subassembly and equipment vehicle antenna subassembly

The utility model relates to a system of vehicle antenna subassembly and equipment vehicle antenna subassembly. In example embodiment, the different antennas that have different functions can be installed alone in order to be used in in the vehicle antenna subassembly any or more a plurality of or whole aggregate erection in other different antennas of inclusive AND with in being used in the vehicle antenna subassembly.

NON-METALLIC WORK-BOARD

Multiband vehicular antenna assembly

Exemplary embodiments are disclosed of multiband vehicular antenna assemblies with Global Navigation Satellite System (GNSS) capabilities. In exemplary embodiments, a multiband antenna assembly is operable with more than two satellite navigation system frequencies (e.g., Global Positioning System (GPS), BeiDou Navigation Satellite System (BDS), the Russian Global Navigation Satellite System (GLONASS), etc.). For example, a multiband antenna assembly may include a first patch antenna operable with at least three different satellite navigation system frequencies, e.g., GPS, BeiDou, and GLONASS, etc. The first patch antenna may be stacked on a second patch antenna. The second patch antenna may be operable with other frequencies, such as Satellite Digital Audio Radio Services (SDARS) signals (e.g., Sirius XM, etc.). The antenna assembly may also include a coupler that couples the signals from the feed ports of the first patch antenna.

Method for treating condensed mother solution of azodicarbonamide foaming agent

Model airplane manufacturing process

The model airplane manufacturing process specifically comprises the following steps that firstly, according to different longitudinal fibers and transverse fibers of bamboos, longitudinal and transverse composite pressing bamboo material plates are manufactured; 2, measuring the tensile strength of the bamboo board to ensure that design requirements are met; thirdly, splicing manufacturing is conducted, firstly, according to the difference of longitudinal fibers and transverse fibers of moso bamboos, the bamboo fiber sliced slices are subjected to longitudinal and transverse multi-layer composite pressing through adhesives to form longitudinal and transverse composite pressing bamboo material plates meeting the requirements; thirdly, in a mechanical experiment, controlling the mass of the bamboo material plate, and adjusting the thickness of the bamboo material plate to form the bamboo fiber plate which is light in mass and high in strength and meets the flying requirement of the model ...

Wrought magnesium alloy for high-speed extrusion

The invention discloses a wrought magnesium alloy for high-speed extrusion, which comprises the following compositions in mass percentage of total alloy mass: 75 to 77 percent of pure magnesium ingot, 5 to 7 percent of pure aluminum ingot, 2 to 3 percent of pure zinc ingot, 7 to 9 percent of pure manganese, 3 to 4 percent of pure lithium, and 1 to 3 percent of pure zirconium; wherein the grain fineness of the wrought magnesium alloy is smaller than 15 mu m. The extrusion speed of the wrought magnesium alloy is remarkably improved and can reach 20 meters per minute.

Novel machine people that walks of gear train

The utility model belongs to the robot structure field, concretely relates to novel machine people that walks of gear train, including the motor, first gear, second gear, third gear train, fourth gear train, interior backup pad, first axis of rotation, second axis of rotation, bearing, screw, connecting plate, bracing piece, u type backup pad. The utility model discloses utilize the transmission characteristics of gear, realize the walking of robot. The advantage lies in that structurally the volume can be very small and exquisite, parts machining and simple to operate, and the requirement of the equal un -specificness material of above -mentioned part.

Head nursing cooling device

The invention relates to a head nursing cooling device, and belongs to the technical field of medical instruments. The head nursing cooling device comprises a head nursing cooling device main body, a head wearing cooler and a liquid circulation device, and is characterized in that a storage cabinet is arranged on the front side of the head nursing cooling device main body, wherein the storage cabinet is provided with switch handles and hinges; a wire guide hole is formed in the left side of the head nursing cooling device main body; the power line is connected into the wire guide hole and is connected with a plug; push handle rack pedestals are arranged on the right side of the wire guide hole and are connected with connecting rods; the connecting rods are connected with guide rods; the guide rods are connected with pushing handle secondary racks; the pushing handle secondary racks are connected with pushing handle main racks; the pushing handle main racks are provided with pushing handle ...

Magnesium alloy surface bright white ceramic membrane and preparation method and application thereof

The invention belongs to the technical field of magnesium alloy surface treatment, and particularly discloses a magnesium alloy surface bright white ceramic membrane and a preparation method and application thereof. The preparation method of the bright white ceramic membrane on the surface of the magnesium alloy comprises the following steps: taking a pretreated magnesium alloy as an anode, and performing bipolar pulse constant-current micro-arc oxidation on the pretreated magnesium alloy in an electrolyte to obtain the magnesium alloy with the bright white ceramic membrane, wherein the electrolyte comprises sodium metaaluminate, strong base, sodium fluoride, potassium titanate, sodium stannate, triethanolamine and water. According to the preparation method, sodium metaaluminate, strong base, sodium fluoride, potassium titanate, sodium stannate and triethanolamine are selected as electrolyte, and a bipolar pulse constant-current micro-arc oxidation process is combined, so that the ceramic ...

Method for preparing non-stoichiometry ratio nano TiNx with reaction ball milling method

The invention relates to a method for preparing the nonstoichiometry TiNx powder, which adopts the steps: Ti powder with the purity being more than 99.5 percent and the granularity being less than 10 micrometers are mixed with analytically pure urea at a mol ratio of 3:1 to 4:1, and is filled into a ball-milling tank of a ball-milling machine; the mixture is sealed with a milling ball inside the ball-milling tank under the condition of the argon environment or under the condition of the atmosphere; the ratio between the ball and the mixture is 10:1 to 30:1, and the ball milling time is 30 to 70 hours. The Ti powder and the urea are ball milled at the room temperature in the way of the reaction ball milling way, so that the nanometer nonstoichiometry TiNx powder with the grain fineness being less than 10 nm is prepared. The powder phase is formed a single TiNx; when the mol ratio between the Ti powder and the urea is 3:1, the atom ratio Ti: N of the obtained TiNx is 1:0.59, namely, x is ...

Pneumatic servo loading platform structure

The utility model relates to a pneumatic servo loading platform structure comprises air supply system, actuator system, loading part, control system, and each intersystem passes through the pipeline or the wire is connected, actuator system's loading stage body radius is adjustable, the loading stage body has four passageways that connect the loading part, and the loading to a rudder face is realized to the loading part of each passageway. The loading control is the feedback of last the next machine control load moment instruction and moment, angle signal in coordination, and the calculation of controller through control algorithm draws the controlled quantity, sends the controlled quantity for the pneumatic servovalve through the DA module, reaches the closed -loop control of the moment output of control load parts through the case opening volume of controlling pneumatic servovalve, can obtain different loading spectrums in real time and exert in real time on the steering wheel, the semi ...

Wire stripper

The utility model relates to a wire stripper, including the wire stripping seat, the wire stripping seat is equipped with the entrance hole on one side, is equipped with the wire hole on the opposite side, wire stripping seat center upside is equipped with cable stripping cutter, and the downside is equipped with down cable stripping cutter, wire stripping seat center is equipped with the vertical drive screw who arranges, last first screw thread section, the second screw thread section of being equipped with of drive screw, first screw thread section is connected with last cable stripping cutter, second screw thread section is connected with lower cable stripping cutter, the drive screw upper end is connected with driving motor. The utility model discloses during the use, drive motor drive drive screw is rotatory, and cable stripping cutter, lower cable stripping cutter go on being close to each other or keeping away from each other in the realization, adjust according to the external ...

Method for manufacturing wrought magnesium alloy for high-speed extrusion

The invention discloses a method for manufacturing wrought magnesium alloy for high-speed extrusion, which comprises the following steps: step one, heating a magnesium alloy smelter to between 550 and 600 DEG C, and adding pure magnesium ingot accounting for 75 to 77 percent of the total alloy mass, pure aluminum ingot accounting for 5 to 7 percent of the total alloy mass and pure zinc ingot accounting for 2 to 3 percent of the total alloy mass; step two, after the pure magnesium ingot, the pure aluminum ingot and the pure zinc ingot are fully melted, adding pure manganese accounting for 7 to9 percent of the total alloy mass, pure lithium accounting for 3 to 4 percent of the total alloy mass and pure zirconium accounting for 1 to 3 percent of the total alloy mass, which are preheated to between 250 and 260 DEG C; step three, after the magnesium alloy formed in step one and step two is fully melted, heating the molten magnesium alloy to between 680 and 700 DEG C, stirring the molten magnesium ...

Inlet water adjusting method and system for rural domestic sewage treatment

The invention relates to a water inlet adjusting method and system for rural domestic sewage treatment, and the system comprises an adjusting tank which is internally provided with a water suction pump and a liquid level sensor; the frequency converter is electrically connected with the water suction pump; the flow meter is arranged on a water outlet pipeline connected with the water suction pump, and the other end of the water outlet pipeline is connected with a post-stage sewage biochemical treatment device; the controller is electrically connected with the liquid level sensor, the frequency converter and the flow meter respectively, and the water inlet system of the sewage biochemical treatment device is optimized through periodic constant flow control and periodic liquid level control. Compared with the prior art, a set of water inlet adjusting system is designed for rural domestic sewage treatment facilities, the problems of morning, noon and evening peaks of rural sewage discharge ...

Method for coordinating a plurality of independent measuring apparatuses in automatic operation

The invention relates to a large measuring apparatus control system, in particular to a method for using a computer for automatic control when needing an apparatus group consisting of a plurality of independent measuring apparatus systems to coordinate in operation. The method for coordinating a plurality of independent measuring apparatuses in automatic operation comprises the following steps of: connecting the control computers of the whole apparatus group through network equipment, selecting the control computer of an apparatus as the host machine of the apparatus group, controlling the operation time sequences of the apparatus group through the host machine, sending a message to the control computer of each apparatus, and after the control computer of each apparatus receives the corresponding message, locally imitating the action of a mouse keyboard and directly operating a control interface of the apparatus. The method is suitable for coordinating the measuring apparatus group with ...

Method for efficiently producing fuel butanol by utilizing wood fiber raw material

The invention discloses a method for efficiently producing fuel butanol by utilizing a wood fiber raw material. The method comprises the following steps: activating and culturing clostridium acetobutylicum, and fermenting the clostridium acetobutylicum in a clostridium culture medium; fermentable sugar obtained by enzymolysis of residues obtained after straw butyric acid pretreatment is used as a carbon source, and is fed into the fermentation liquor for continuous fermentation; and after the clostridium acetobutylicum grows stably, adding the detoxified butyric acid pretreatment supernatant into the fermentation liquor in a pulse flow manner for multiple times, and fermenting to produce the fuel butanol. Fermentable sugar obtained by enzymolysis of solid residues obtained after pretreatment of lignocellulose butyric acid and the butyric acid-containing supernate are used for fermentation production of fuel butanol, the yield of biological butanol is remarkably increased, no exogenous chemical ...

Method for manufacturing magnesium alloy squeezing seamless pipe

The invention discloses a manufacturing method of a magnesium alloy extruding seamless pipe, comprising the following steps: a magnesium alloy round ingot with set ingredients is put in a heating furnace to be heated; the heated magnesium alloy ingot is cooled to a set temperature; an end surface of the cooled magnesium alloy ingot is provided with a central hole, and based on the central hole, the seamless pipe is extruded and molded. In the manufacturing method of the magnesium alloy extruding seamless pipe, magnesium alloy of proper chemical elements is adopted, and before the extrusion of an inclined roll piercing mill, a central punching machine is used for punching the hole on the extruded end surface of the magnesium alloy. When the central hole is made, the extrusion forming is carried out. Therefore internal defects of the magnesium alloy extruding seamless pipe can be reduced. And no additional grinding and cutting processes for eliminating the internal defects are required. Therefore ...

Over -and -under type cantilever crane device

The utility creatively provides an over -and -under type cantilever crane device, including cantilever crane body, the lower festival be connected with the upper segment section of this body couplingof cantilever crane, with the base section and middle section section, middle section section upper portion suit is in the outside of upper segment section lower part, and the two is connected througha connection structure detachable, lower section upper portion suit is in the outside of middle section section lower part, and the two is connected through the 2nd connection structure detachable. The utility model discloses the creation changing fixed column cantilever crane stand among the prior art into sleeve over -and -under type stand, and stand column design becomes the three section structure, and per two sections are fixed through wearing to establish the fixed axle, rise and reduce the stand very swiftly to make things convenient for, and easy operation, behind the fixed axle, eachsection ...

Method for preparing non-stoichiometry ratio nano TiNx with reaction ball milling method

The invention relates to a method for preparing the nonstoichiometry TiNx powder, which adopts the steps: Ti powder with the purity being more than 99.5 percent and the granularity being less than 10micrometers are mixed with analytically pure urea at a mol ratio of 3:1 to 4:1, and is filled into a ball-milling tank of a ball-milling machine; the mixture is sealed with a milling ball inside the ball-milling tank under the condition of the argon environment or under the condition of the atmosphere; the ratio between the ball and the mixture is 10:1 to 30:1, and the ball milling time is 30 to 70 hours. The Ti powder and the urea are ball milled at the room temperature in the way of the reaction ball milling way, so that the nanometer nonstoichiometry TiNx powder with the grain fineness being less than 10 nm is prepared. The powder phase is formed a single TiNx; when the mol ratio between the Ti powder and the urea is 3:1, the atom ratio Ti: N of the obtained TiNx is 1:0.59, namely, x isequal ...

Carbon fiber precursor drafting device

The invention provides a carbon fiber precursor drafting device.The carbon fiber precursor drafting device comprises a drafting tube, a steam inlet tube and a noise reduction unit.The carbon fiber precursor penetrates through the drafting tube in the axial direction of the drafting tube; the noise reduction units are arranged at the two axial ends of the drafting pipe respectively, each noise reduction unit is provided with a plurality of cavities, all the cavities are sequentially communicated, the cavity, close to one side of the drafting pipe, in all the cavities is provided with an air inlet communicated with the drafting pipe, all the cavities are provided with air outlets communicated with the outside, and steam in the drafting pipe enters the noise reduction units and then is exhausted through all the cavities. According to the carbon fiber precursor drafting device, by arranging the noise reduction unit, steam sprayed out of the two ends of the drafting pipe can enter the noise ...

Method and device for troubleshooting CSCF network element in IMS network

The invention discloses a method and a device for troubleshooting a CSCF network element in an IMS network. The invention relates to the field of communication technology and solves the technical problem in the prior art that manual restoration of a voice service of an IMS service user is low in efficiency. After a second sub-route of an MGCF network element is configured to follow route rules of a core network gateway MSC (GMSC), the method comprises: an MGCF network element checks if any fault happens to an I-CSCF network element by sending heartbeat messages to the I-CSCF network element in real time; and when an I-CSCF network element fault is detected, a received call oriented to and sent to the I-CSCF network element is directly forwarded to the GMSC. The method and the device are mainly used for IMS services.

Rehabilitation nursing device

The invention relates to a rehabilitation nursing device and belongs to the technical field of medical apparatuses. The device comprises a body. Body supporting rods are arranged on the lower side of the body, tire protection covers are arranged on the lower sides of the body supporting rods, and anti-skid rubber tires are arranged on the lower sides of the tire protection covers. A power wire outlet is formed in the right of the body and is connected with a leakage protector through a power wire. A safety plug is arranged on the right of the leakage protector. A power control board is arranged on the upper side of the power wire outlet, a power switch is arranged on the front side of the power control board, a leg blood circulation board is arranged on the front side of the body, and micro-current contacts are arranged on the front side of the leg blood circulation board. The device is complete in function, convenient to use, time saving and labor saving during postoperative rehabilitation ...

定时释放显影抑制剂青成色剂及其制备

In the present invention, TIME group is formed by residue of the following molecular structures, compound II is used to act with developer oxide to release TIME-PUG group when compound is used in developing process, TIME-PUG grou is cracked on TIME-PUG group under certain condition to realease PUG group for improving photographic performance of the film.

Novel gear train walking robot

The invention belongs to the field of robot structures, and particularly relates to a novel gear train walking robot. The novel gear train walking robot comprises a motor, a first gear, a second gear, a third gear set, a fourth gear set, an inner supporting plate, a first rotary shaft, a second rotary shaft, bearings, a screw, connecting plates, supporting rods and u-shaped supporting plates. The gear transmission characteristic is utilized, and walking of the robot is achieved. The novel gear train walking robot has the advantages that the structural size can be very small and exquisite, part machining and mounting are convenient, and the parts has no requirement for special materials.

Passive fruit gripping end executor

The invention relates to a passive fruit gripping end executor. The passive fruit gripping end executor comprises an upper slide table, sliders, a crank, connecting rods, a lower slide table, gripping finger connecting blocks, twist springs, three gripping fingers, press switches and rubber, wherein two ends of each connecting rod are connected with the crank and the corresponding slider respectively, each slider is arranged in corresponding slide grooves of the upper slide table and the lower slide table in a sleeved manner, and the tail end of each slider is connected with the corresponding gripping finger through the corresponding gripping finger connecting block. Each press switch is adhered to the side face of the corresponding gripping finger connecting block, a press switch press block is fixedly connected to each gripping finger, and one end of each press switch press block extends out to press the corresponding press switch. Each gripping finger connecting block is connected with ...

Method for processing contour of flexible circuit board

The invention provides a method for processing the contour of a flexible circuit board, which uses a first mould and a second mould, wherein the first mould comprises at least one first punch, and thenumber and the shape of first punches are the same as those of gaps between the flexible circuit boards arranged on flexible circuit board materials; the second mould comprises at least one second punch, the shape of the second punch is the same as the contour of the flexible circuit board, the flexible circuit board materials are delivered to a processing area of the first mould to cut out the gaps between the flexible circuit boards arranged on the flexible circuit board materials by the punch; and the outer edges of the flexible circuit board formed by the processing are cut by the secondmould so as to form the finished product of the flexible circuit board. Because the shape of the punches is designed to be the same as that of the gaps between the flexible circuit boards arranged onthe ...

Liquid production device, acidification sand prevention oil production pipe column, water injection oil production pipe column and method thereof

The invention discloses a liquid production device, an acidification sand prevention oil production pipe column, a water injection oil production pipe column and a method thereof, and relates to the field of efficient oil well production. The liquid collecting device comprises an upper assembly and a lower assembly. The acidification sand prevention oil extraction pipe column comprises a first screwed plug, a first oil pipe, a first casing pipe, a plurality of first layering packers, a suspension releasing packer and a plurality of liquid extraction devices. The water injection oil extraction pipe column comprises a second screwed plug, a second oil pipe, a second casing pipe, a plurality of second layered packers, a suspension packer and a plurality of liquid extraction devices. During construction, acid liquor or water is injected into each stratum from bottom to top, and then oil extraction operation is carried out. Layered oil production and layered water injection in the same well ...

Method for preparing nano TiCN/Al2O3 composite powder through reactive ball milling

The invention discloses a method for preparing nano TiCN/Al2O3 composite powder through reactive ball milling. The method comprises the steps of mixing rutile powder, Al powder, graphite powder and urea (analytically pure) in a mole ratio of 3: 4: 2.7: 0.15, filling mixture, together with grinding balls, in a ball milling tank, wherein ratio of the balls to the materials is (20-30): 1, and carrying out ball milling for 40-80 hours in a high-energy ball mill, wherein raw materials react under the function of ball milling to form TiCN/Al2O3 composite powder which is less than 2 microns in granularity, 0.71 microns in average particle size and less than 10nm in grain size. The method disclosed by the invention is simple in synthesis process, low in synthesis temperature, small in grain size of synthesized powder, high in powder sintering activity and favorable for reducing powder sintering temperature.

Fault processing method and system in IMS network

The invention discloses a fault processing method and system in an IMS network, relates to the communication technical field, and solves the technical problem in the prior art that the time for hand-operated connection of IMS business is too long, thus causing users unable to have a conversation. In the IMS network, an iFC parameter on an S-CSCF network element is configured with a trigger rule in which a calling is not released when AS is inaccessible; the method comprises the following steps: the S-CSCF network element sends state detection message in real time to the AS so as to determine whether the AS is in failure or not; when AS fault is detected, a received calling conversation request message of requesting to access the AS is directly forwarded to a MGCF network element. The method and system are mainly used in IMS business.

Ware is cut to insulation cable

The utility model relates to a ware is cut to insulation cable, the jump spring press mounting apparatus comprises a fixed pedestal, the unable adjustment base center is equipped with blocks the tool bit, the overhead end of amputation knife is connected with the driving hydraulic cylinder tip, driving hydraulic cylinder one side is equipped with the action bars, it is equipped with cutting seat to block the tool bit downside, cutting seat upper end center is equipped with cuts the recess, the cutting seat lower extreme is equipped with a damping spring, a damping spring lower extreme contacts with sealed lid, be equipped with the 2nd damping spring between cutting seat and the unable adjustment base. The utility model discloses place the cable on cutting seat when blocking, driving hydraulic cylinder length extension makes amputation knife cephalad downside move, realizes blocking the cable, can play better cushioning effect down in a damping spring, the 2nd damping spring's effect blocking ...

Method for manufacturing wrought magnesium alloy for high-speed extrusion

The invention discloses a method for manufacturing wrought magnesium alloy for high-speed extrusion, which comprises the following steps: step one, heating a magnesium alloy smelter to between 550 and 600 DEG C, and adding pure magnesium ingot accounting for 75 to 77 percent of the total alloy mass, pure aluminum ingot accounting for 5 to 7 percent of the total alloy mass and pure zinc ingot accounting for 2 to 3 percent of the total alloy mass; step two, after the pure magnesium ingot, the pure aluminum ingot and the pure zinc ingot are fully melted, adding pure manganese accounting for 7 to 9 percent of the total alloy mass, pure lithium accounting for 3 to 4 percent of the total alloy mass and pure zirconium accounting for 1 to 3 percent of the total alloy mass, which are preheated to between 250 and 260 DEG C; step three, after the magnesium alloy formed in step one and step two is fully melted, heating the molten magnesium alloy to between 680 and 700 DEG C, stirring the molten magnesium ...

Indoor intelligent light control system based on singlechip

The utility model discloses an indoor intelligent light control system based on singlechip, include: a human infrared induction module, LED lamp and lanterns and be used for the basis for controlling entire system's single chip microcomputer control chip, be used for gathering indoor environment luminance information surround lighting luminance sensing module, be used for judging and have or not personnel or personnel position the LED drive module of the wave form drive LED lamp and lanterns of single chip microcomputer control chip output, surround lighting luminance sensing module and human infrared induction module all are connected with the single chip microcomputer control chip, the single chip microcomputer control chip passes through LED drive module be connected with the LED lamp and lanterns. The utility model discloses can come the luminance of true time control lamps and lanterns by the surround lighting luminance that detects, make indoor overall luminance keep at the within ...

Underground wireless communication system and method based on hydraulic control power generation

The invention provides an underground wireless communication system and method based on hydraulic control power generation, the system comprises a ground control cabinet, a hydraulic control pipeline, a plurality of hydraulic control power generation devices, a wellhead transceiver and a plurality of underground intelligent devices, and each underground intelligent device is provided with a water distributor valve; the ground control cabinet pumps hydraulic oil into the underground hydraulic control power generation devices through the hydraulic control pipelines, turbo-type power generators in the hydraulic control power generation devices rotate to generate electric energy, and the electric energy is transmitted to the underground intelligent devices through cables. The underground intelligent devices collect underground information such as underground temperature, pressure and flow and transmit the underground information to the ground control cabinet through the wellhead transceiver ...

Method for realizing IMS core network calling business, equipment and system thereof

The invention discloses a method for realizing an IMS core network calling business, equipment and a system thereof. The method is used for settling a problem of relatively long calling time delay caused by session path signaling roundabout when an IMS client of an IMS user is not online. The method comprises the steps of: receiving calling request information which is transmitted from a calling user terminal and carries user identification of a called user terminal by an SCP; after a fact that the called user terminal has signed the IMS business is determined, determining whether the IMS client which corresponds with the user identification carried in the calling request information is in an online state according to a correspondence between the prestored user identification and state identification of the IMS client and IMS client state information that are respectively represented by the preset different IMS client state identifications; and the determining result is not, calling the ...

Cement-based material surface hydrophobic capacity distribution water negative pressure detection device

The invention discloses a negative pressure detection device for cement-based material surface hydrophobicity distribution water, and relates to the technical field of material surface hydrophobicity detection. The device is mainly composed of a driving module, a detection module, a test bed and a water bath module. A to-be-tested sample is mounted on the test bed, a super-hydrophobic test plate is mounted on the detection module, and the super-hydrophobic test plate and the to-be-tested sample are adjusted to be in contact with each other at a certain pressure in the water bath module through a vertical driver and a transverse positioner in the driving module, so that negative pressure in water is generated; a force sensor in the detection module is used for detecting the maximum drawing force capable of being resisted by the negative pressure in the water, the hydrophobic capacity of a test area on the surface of the to-be-tested sample is reflected, the test area is replaced, the operation ...

Multi-scale gradient hole alloy electrode for hydrogen evolution by electrolyzing water and preparation method of multi-scale gradient hole alloy electrode

The invention provides a multi-scale gradient hole alloy electrode for hydrogen evolution through water electrolysis and a preparation method of the multi-scale gradient hole alloy electrode. The preparation method comprises the following steps: preparing mixed slurry according to a preset proportion by taking spherical alloy powder as a raw material, polyacrylonitrile as a binder and N-N dimethyl pyrrolidone as a solvent; coating the mixed slurry on glass containing a stainless steel mesh substrate, then taking down the stainless steel mesh, and putting the stainless steel mesh into deionized water for exchange to obtain an organic-alloy composite membrane; and the organic-alloy composite film is placed in a muffle furnace to be subjected to air burning treatment, after cooling, an alloy oxide film obtained after air burning treatment is transferred into a tubular furnace to be subjected to high-temperature reduction sintering treatment, and the multi-scale gradient porous alloy electrode ...

Belt buckle die casting separator

The invention belongs to die casting separation equipment and particularly relates to a belt buckle die casting separator comprising a chain plate conveying device, a slag bag separating device, a workpiece separating device, a power device, a waste material recycling bin, a workpiece recycling bin, a rack and a material pressing device. The chain plate conveying device is driven by the power device to rotate. After a belt buckle die casting is put in a positioning hole and a positioning pin on the chain plate conveying device and fixed, the belt buckle die casting is conveyed into the slag bag separating device by the chain plate conveying device to realize the bending and the separating of a slag bag and a belt buckle, and then the belt buckle die casting is continuously conveyed forwards into the workpiece separating device to realize the bending and the separating of the belt buckle and a pouring gate. The slag bag, the belt buckle and the pouring gate separated from one another respectively ...

Multiband vehicular antenna assemblies

Disclosed are exemplary embodiments of multiband vehicular antenna assemblies. In an exemplary embodiment, a vehicular antenna assembly for installation to a vehicle body wall generally includes a first antenna configured for use with AM/FM radio. The first antenna includes a first printed circuit board having a first side surface and an opposing second side surface. Electrical conductors are along the first and second side surfaces of the first printed circuit board. An electrically-conductive planar structure is coupled to an upper portion of the first printed circuit board.