08-05-2014 дата публикации
Номер: US20140123704A1
An area S (m) of a facing surface of each of injectors which faces a glass ribbon is set so as to satisfy: S≦(0.0116×P×Cg×T)/{ε×F×σ(T−T)}, wherein P is an output (ton/day) of the glass ribbon; Cg is a specific heat (J/(kg·° C.)) of the glass; T is an acceptable temperature drop (° C.); ε is radiation factor; F is a surface-to-surface view factor; σ is Boltzmann's constant; Tis a temperature (K) of the glass ribbon represented by K=(T+T)/2 where Tand Tare measured values of the glass ribbon at the inlet and outlet of the injector, respectively; and Tis a temperature (K) of the facing surface of the injector. 1. A method for manufacturing a laminated film-coated glass substrate in which a glass manufacturing apparatus comprising a melting furnace capable of melting a raw material for a glass , a float bath capable of floating a molten glass on a molten metal to form a glass ribbon , and an annealing furnace capable of annealing the glass ribbon is used to form a laminated film on the glass ribbon by a CVD method by means of a plurality of injectors disposed in the annealing furnace and the glass ribbon is cut , wherein:if a glass transition temperature is expressed by Tg, the laminated film is formed at Tg+50° C. or lower; and{'sup': '2', 'claim-text': {'br': None, 'i': S', 'P×Cg×T', 'F', 'T', '−T, 'sub': gla', 'inj, 'sup': 4', '4, '≦(0.0116×)/{ε××σ()}'}, 'a facing surface of each of the injectors which faces the glass ribbon has an area S (m) represented by the following expression{'sup': −8', '2', '4, 'sub': gla', 'in', 'out', 'in', 'out', 'inj, "wherein P is an output (ton/day) of the glass ribbon; Cg is a specific heat (J/(kg·° C.)) of the glass; T is an acceptable temperature drop (° C.) by which the glass ribbon is cooled during conveyance from an inlet to an outlet in one injector; E is radiation factor; F is a surface-to-surface view factor; a is Boltzmann's constant (5.67×10(W/m·K)); Tis a temperature (K) of the glass ribbon represented by K=(T+T)/2 using ...
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