Thin plate glass melt molding method and device

Abstract

The invention discloses a glass melt molding method, wherein the method comprises the following steps: a glass molten pool is divided into a left region and a right region through a high temperature resistant knife-shaped molded body, a left glass melt and a right glass melt are interconnected, and a knife edge of the knife-shaped molded body exceeds the liquid surface of the glass melt; the glass melt is lifted along two sides of the knife-shaped molded body, the surfaces of the glass melt at both sides of the knife-shaped molded body and near the molded body are cooled, and a left thin layer and a right thin layer having relatively large outer surface viscosity are formed; the left thin layer is formed by drawing the left-region glass melt along the left surface of the knife edge, at the same time, the right thin layer is formed by drawing the right-region glass melt along the right surface of the knife edge, and the left thin layer and the right thin layer are merged at a knife point of the knife edge to form a plate root; and the glass melt is continued to be drawn upwards from the plate root, is cooled and shaped, and then is subjected to annealing treatment to form a glass plate.

Description

technical field [0001] The invention belongs to the field of glass material forming technology, and in particular relates to a glass melting and forming method and device thereof. Background technique [0002] As an amorphous material, glass has no fixed melting point. It has a smooth and stable viscosity change within a certain temperature range from solid to liquid. As the temperature continues to rise, the viscosity of the glass will continue to decrease. Glass The fusion molding of glass relies on the temperature dependence of glass viscosity. [0003] During the forming process, the glass successively experiences processes such as strain point, transformation point, annealing point, deformation point, softening point, operating temperature and melting temperature as the temperature rises. When the temperature reaches the softening point and continues to increase the temperature, the interaction force between the structural components of the glass melt and the polymer i...

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Problems solved by technology

[0004] In the prior art, the molding process using the grooved vertical lead-up method is relatively complicated. The glass melt is pulled vertically upward from the gap between the groove bricks, which is easily disturbed by external factors, and the cooling effect is low, especially in the notch glass melt. The yield rate is low in the case of crystal and groove lip corrosion

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