A calcium-magnesium-aluminum-silicon building float glass-ceramic tin bath structure

Abstract

The invention discloses a calcium magnesium aluminum silicon building float glass-ceramic tin bath structure. The structure comprises a bath body, a crown, an edge roller, a shielding gas system and a heating system; the crown is arranged on the bath body, the bath body comprises a wide section, a narrowing section and a narrow section which are sequentially arranged, the wide section is provided with the edge roller, and the front end of the wide section is provided with an inlet and the heating system. Glass liquid prepared from molten calcium magnesium aluminum silicon enters the tin bath body and floats on the surface of tin liquid through a density difference between the glass liquid and the tin liquid, the flowing glass liquid forms a glass tape with the flat surface and the uniform thickness under the joint action of the surface tension and the gravity, the glass tape is cooled into a glass plate at the tail end of the tin bath body, and then the glass plate leaves from the tin bath body to enter an annealing kiln to be annealed. The structure is designed according to the viscosity property of calcium magnesium aluminum silicon glass-ceramic and is more beneficial for forming of the glass-ceramic.

Description

technical field [0001] The invention belongs to the field of glass-ceramic production equipment, and in particular relates to a calcium-magnesium-aluminum-silicon architectural float glass-ceramic tin bath structure. Background technique [0002] Glass-ceramic is a material containing both glass phase and crystalline phase obtained by heat treatment based on glass with a specific composition. The heat treatment process is called the crystallization process, and the glass-ceramic has high strength and hardness, and the thermal expansion coefficient is small, so the application prospect is very wide. [0003] At present, the production of glass-ceramics adopts sintering and calendering methods. The sintering method requires secondary melting, high energy consumption and poor product quality; while the calendering method requires grinding and polishing of the glass-ceramic plate, which has a high reject rate. [0004] The float process utilizes the surface tension of molten gl...

AI Technical Summary

Problems solved by technology

If the temperature and length of the thinning zone of the tin bath are not changed, it will cause difficulty in forming the glass

[0007] Therefore, the conventional tin bath cannot meet the forming requirements of calcium magnesium aluminum silicon glass liquid

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