Wood antiseptic treatment method and antiseptic wood prepared using the said method

The invention discloses a method for carrying out preservative treatment to timber by using a composite preservative containing boron element and preserving timber prepared by the method. The method for preservative treatment comprises the steps of: carrying out at least two times of vacuum pressurizing immersion treatment to the timber in the preservative, firstly, carrying out decompressing andvacuumizing treatment to the timber so as to lead the timber to fully absorb the boron-based preservative; and then carrying out pressurizing treatment to the timber to lead the preservative to be fully penetrated to the timber. The method has simple timber treatment process and convenient operation; and the prepared timber has low boron loss rate, remarkably improved anti-loss performance, boronconservation rate of as high as 75 to 100 percent, and remarkably strengthened preservative effect.

Playing method of multifunctional teaching appliance

A multifunctional education and game appliance is composed of a group of at least 10 square columns with different lengthes in 10 specifications, which can be used for simple mathematics operations such as addition, subtraction, multiplication and division, or as building blocks. Said square columns can also bed used for arranging to teach carry.

Wood antiseptic treatment method and antiseptic wood prepared using the said method

The invention discloses a method for carrying out preservative treatment to timber by using a composite preservative containing boron element and preserving timber prepared by the method. The method for preservative treatment comprises the steps of: carrying out at least two times of vacuum pressurizing immersion treatment to the timber in the preservative, firstly, carrying out decompressing and vacuumizing treatment to the timber so as to lead the timber to fully absorb the boron-based preservative; and then carrying out pressurizing treatment to the timber to lead the preservative to be fully penetrated to the timber. The method has simple timber treatment process and convenient operation; and the prepared timber has low boron loss rate, remarkably improved anti-loss performance, boron conservation rate of as high as 75 to 100 percent, and remarkably strengthened preservative effect.

Corrosion prevention compression modified wood and preparation method thereof

The invention discloses a manufacturing method of an anti-corrosion compressing modification wood. The process sequentially includes a hot-water pre-treatment, a compressing treatment and an anti-corrosion treatment. The hot-water pre-treatment can choose a single-face wood water-immersion, a double-face wood water-immersion, a single-face wood water-spraying and a double-face wood water-spraying, and the water temperature is controlled between 40 and 90 DEG C. The measure of the invention makes use of restoring force caused by a compression to the wood to absorb an anti-corrosion liquid so as to get compressed anti-corrosion wood. The manufactured modified-wood has excellent physical mechanics capability and surface hardness of the treated wood is raised by 2 to 3 times, compared with that of the common wood; the invention has better anti-corrosion capability. The method is especially suitable for outdoor establishments.

Wood preservative and method for wood preservation

A boron based wood preservative composite comprises the materials of sodium fluoroborate and didecyl dimethyl ammonium chloride (DDAC). The said materials penetrate through the wood ready for preservation with the application of vacuum and pressure, and then react chemically to produce water-insoluble boron composition. A method for wood preservation treatment is also disclosed.

Method for fusing reducing iron by employing iron ore hot pressing carbon-containing agglomerate

Disclosed is a smelting reduction iron making method by iron ore hot pressing carbon bearing lump into shaft furnace, which takes iron concentrate hot pressing carbon bearing lump as raw material and shaft furnace as smelting reduction reactor. Smelting reduction iron is done by injecting pulverized coal into the shaft furnace with industrial oxygen, hot air or high oxygen hot air agitated; the iron bearing power of iron concentrate hot pressing carbon bearing lump is iron concentrate powder; the hot pressing pulverized coal is bituminous coal powder; quicklime acts as flux; the weight percent of each group is as follow: iron concentrate powder 60 to 75 percent, bituminous coal powder 20 to 35 percent and the quicklime powder 20 to 35 percent; iron concentrate pulverized coal hot pressing lump is fed through double bell mix feeding system at the top of the shaft furnace and is preheated, reduced and smelted in the shaft furnace; the pulverized coal is injected from a tuyere of the shaft ...

Shaving board with corrosion resistance function and process for preparation

The invention discloses an artificial shaving board with a corrosion resistance function and a process for preparation, wherein the artificial shaving board consists of wood shavings. The artificial shaving board comprises a bottom layer, a sandwiched layer and a surface layer, raw materials of the bottom layer and the surface layer comprise wood shavings, adhesive and preservative ammonium pentaborate, raw materials of the sandwiched layer comprise wood shavings and adhesive, and weight ratio of total weight of the wood shavings in the bottom layer and the surface layer to the preservative ammonium pentaborate is 100:0.5-3.5. The shaving board prepared by the invention does not contain metal preservative, has a high-efficient anti-termite property and is low in formaldehyde release.

Method for fusing and reducing iron by employing iron ore hot pressing carbon-containing agglomerate

Disclosed is a smelting reduction iron making method by iron ore hot pressing carbon bearing lump into shaft furnace, which takes iron concentrate hot pressing carbon bearing lump as raw material andshaft furnace as smelting reduction reactor. Smelting reduction iron is done by injecting pulverized coal into the shaft furnace with industrial oxygen, hot air or high oxygen hot air agitated; the iron bearing power of iron concentrate hot pressing carbon bearing lump is iron concentrate powder; the hot pressing pulverized coal is bituminous coal powder; quicklime acts as flux; the weight percentof each group is as follow: iron concentrate powder 60 to 75 percent, bituminous coal powder 20 to 35 percent and the quicklime powder 20 to 35 percent; iron concentrate pulverized coal hot pressinglump is fed through double bell mix feeding system at the top of the shaft furnace and is preheated, reduced and smelted in the shaft furnace; the pulverized coal is injected from a tuyere of the shaft furnace ...

Compound timber corrosionproof process liquid, its preparing method and method for modifying timber using the process liquid

The invention provides a composite preservative treatment liquid for modifying the wood, preparation method thereof and treatment method for modifying the wood using the said treatment liquid. The said treatment liquid comprises wood preservation liquid and organic montmorillonite with dispersion degree of 1.5-3.0%, wherein the organic montmorillonite is formed by reacting the aqueous suspension of sodium based montmorillonite (Na-MMT) with concentration of 3-8% and cetyl trimethyl ammonium bromide (CTMAB) at 60-90 degree. The wood is soaked by the said composite preservative treatment liquid, wood / montmorillonite composite material with good preservative anchor effect can be obtained, therefore the wood not only has good antiseptic property and increased physical mechanical property, hardness and dimensional stability.

Method for preparing hot pressed balls of iron ore concentrate and powdered coal

Multi-function game teaching aid

The utility model provides a multifunctional game teaching aid which comprises a placing box. The inner part of the placing box is made into a concave box shape and both sides are made into scalariform box boards. A group of square cylindrical bodies with different length are placed in the placing box according to sequence numbers and the length. The utility model also comprises two lines of placing boxes which are used for the game that a calculation result exceeds tens digit.

Corrosion prevention compression modified wood and preparation method thereof

The invention discloses a manufacturing method of an anti-corrosion compressing modification wood. The process sequentially includes a hot-water pre-treatment, a compressing treatment and an anti-corrosion treatment. The hot-water pre-treatment can choose a single-face wood water-immersion, a double-face wood water-immersion, a single-face wood water-spraying and a double-face wood water-spraying, and the water temperature is controlled between 40 and 90 DEG C. The measure of the invention makes use of restoring force caused by a compression to the wood to absorb an anti-corrosion liquid so as to get compressed anti-corrosion wood. The manufactured modified-wood has excellent physical mechanics capability and surface hardness of the treated wood is raised by 2 to 3 times, compared with that of the common wood; the invention has better anti-corrosion capability. The method is especially suitable for outdoor establishments.

Electroless plating process for preparing woody electro-magnetic screen material

The invention provides a chemical plating method for preparing wood electromagnetic shielding materials, comprising the steps of: wood surface treatment, dimension stability treatment, sensibilization and activation treatment, chemical copperplating, plating post treatment and final thermocompression bonding and coloring/finishing treatment. The method not only makes thin wood have metallic feeling which plays a certain part in decoration but also improves combination of the safety of electromagnetic shielding and the utilization rate of metals, and can effectively prevent electromagnetic pollution.

Electroless plating process for preparing woody electro-magnetic screen material

The invention provides a chemical plating method for preparing wood electromagnetic shielding materials, comprising the steps of: wood surface treatment, dimension stability treatment, sensibilizationand activation treatment, chemical copperplating, plating post treatment and final thermocompression bonding and coloring/finishing treatment. The method not only makes thin wood have metallic feeling which plays a certain part in decoration but also improves combination of the safety of electromagnetic shielding and the utilization rate of metals, and can effectively prevent electromagnetic pollution.