Glass pane manufacturing method and glass pane manufacturing device

A manufacturing method and glass plate technology, applied in glass manufacturing equipment, glass forming, glass forming, etc., can solve the problems of glass plate thickness deviation, temperature distribution, forming furnace temperature distribution, etc., and achieve the effect of suppressing deformation

Active Publication Date: 2014-03-26
AVANSTRATE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, the temperature difference of the molded body affects the variation in thickness of the glass sheet
In addition, the temperature distribution of the molded body also affects the temperature distribution of the environment in the molding furnace.
The temperature distribution in the forming furnace also affects the thickness variation of the glass sheet in the same way as the temperature difference of the formed body

Method used

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  • Glass pane manufacturing method and glass pane manufacturing device
  • Glass pane manufacturing method and glass pane manufacturing device
  • Glass pane manufacturing method and glass pane manufacturing device

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Embodiment Construction

[0037] (1) The overall configuration of the glass plate manufacturing equipment

[0038] Embodiments of the manufacturing method of the glass plate of this invention, and the manufacturing apparatus of a glass plate are demonstrated, referring drawings. figure 1 It is a schematic diagram which shows an example of the structure of the glass plate manufacturing apparatus 200 of this embodiment. The glass plate manufacturing apparatus 200 is equipped with the melting tank 40, the clarification tank 41, the stirring apparatus 100, the shaping|molding apparatus 42, and conduit|pipe 43a, 43b, 43c. The conduit 43a connects the melting tank 40 and the clarification tank 41 . The conduit 43b connects the clarification tank 41 and the stirring device 100 . The conduit 43c connects the stirring device 100 to the forming device 42 .

[0039] The molten glass produced|generated in the melting tank 40 flows into the clarification tank 41 through the conduit|pipe 43a. The molten glass clar...

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Abstract

The invention provides a glass pane manufacturing method and a glass pane manufacturing device, wherein the heat dispassion of a shaped body is inhibited via a support member for the shaped body. Meanwhile, the deformation of the shaped body due to the thermal creep thereof can be avoided. The glass pane manufacturing method comprises the steps of overflowing the molten glass from the upper end face of the shaped body (52) and then shunting the molten glass; and converging the molten glass at the lower end of the shaped body (52) to continuously form a glass pane. The shaped body (52) is arranged in such a manner that a force is respectively applied onto the two end surfaces of the shaped body along the length direction by means of supporting members (54a, 54b) and heat insulating members (56a, 56b). The supporting members (54a, 54b) are in contact with the shaped body (52), while the heat insulating members (56a, 56b) are not in contact with the shaped body (52) while being in contact with the supporting members (54a, 54b). Compared with the supporting members (54a, 54b), the heat insulating members (56a, 56b) are smaller in heat conductivity, and the compression strength thereof are larger than has over 50 MPa.

Description

technical field [0001] The present invention relates to a manufacturing method of a glass plate and a manufacturing device of a glass plate. Background technique [0002] A glass plate used in a flat panel display (FPD, flat panel display) such as a liquid crystal display and a plasma display requires a high degree of flatness on the surface. Typically, such glass sheets are manufactured by the overflow down draw method. In the overflow down-draw method, as described in Patent Document 1 (U.S. Patent No. 3,338,696), the molten glass that flows into the molded body and overflows flows down the outer surface of the molded body, merges at the lower end of the molded body, and is drawn downward while being drawn. One side is shaped into a ribbon of glass. [0003] In the overflow down-draw method, the formed body is placed in a high-temperature environment in a forming furnace. In addition, a load due to its own weight and the weight of glass is applied to the molded body. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B17/06
CPCC03B18/16C03B18/18Y02P40/50Y02P40/57
Inventor 前田伸广
Owner AVANSTRATE INC
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