Preparation method of high-strength anti-cracking high-temperature-resistant glass and application thereof

Abstract

The invention discloses a preparation method of high-strength anti-cracking high-temperature-resistant glass and application thereof. The preparation method of the high-strength anti-cracking high-temperature-resistant glass comprises the following steps: (1), crushing the following raw materials in parts by mass: 8.5-8.8 parts of quartz, 0.2-0.3 part of sodium carbonate, 0.3-0.4 part of lime and 0.6-0.65 part of borosilicate; (2) drying the crushed raw materials, and uniformly mixing the raw materials; (3) melting: adding the mixed raw materials in a tank furnace or a pot furnace, gradually heating to the temperature of 1,700-1,800 DEG C, and insulating for 5-8 hours; (4) enabling the melted liquid glass to enter a molten tin bath which contains molten tin through a flowing groove, depositing, and then uniformly flatly laying the liquid glass on the surface of the molten tin; (5) shaping: enabling two surfaces of the liquid glass to be flat due to the fact that the upper surface of the liquid glass is subjected to the polishing effect of a high-temperature region to form a flat plate, and cooling the flat plate after shaping the flat plate; and (6) annealing: after cooling the flat plate, feeding the flat plate into an annealing furnace and annealing for 3-4 hours, and naturally cooling to obtain a high-strength anti-cracking high-temperature-resistant glass flat plate. The glass plate prepared by the process has good high temperature resistance, corrosion resistance, insulativity, thermal stability and light transmittance.

Description

technical field [0001] The invention belongs to the technical field of special glass preparation, and in particular relates to a preparation method and application of high-strength crack-proof and high-temperature-resistant glass. Background technique [0002] High-temperature glass is glass used under certain temperature and pressure conditions. It has the characteristics of high transparency, stable heat resistance, high compressive strength, and good chemical properties. According to the material, high-temperature glass can be divided into four series and several varieties: "soda-calcium high-temperature glass", "borosilicate high-temperature glass", "microcrystalline high-temperature glass", and "quartz high-temperature glass". [0003] In the existing technology, the processing of high temperature glass generally adopts advanced cold processing technology, which effectively guarantees the internal quality and strength of various types of glass, but there are still probl...

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Problems solved by technology

[0003] In the existing technology, the processing of high temperature glass generally adopts advanced cold processing technology, which effectively guarantees the internal quality and strength of various types of glass, but there are still problems. The insulation performance of high temperature resistant glass cannot reach the complete insulation state. The strength of some high-temperature-resistant glass cannot meet the requirements of special applications; in addition, the high-temperature-resistant glass prepared by the existing technology cannot have the advantages of thermal stability, light transmission, and corrosion resistance at the same time. to the standards and requirements used

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