Low-fluorine microcrystalline glass

Abstract

The invention provides a low-fluorine microcrystalline glass. The low-fluorine microcrystalline glass comprises following ingredients, by weight, 56%<silicon dioxide<72%, 8%<potassium oxide<=12%, 18%<calcium oxide<=20%, 1%<=fluorine<=3%, 1%<aluminum oxide<=5%, 0<zinc oxide<=4%, 0<titanium oxide<=2%, and the balance sodium oxide. The low-fluorine microcrystalline glass looks like semitransparent jade; possesses smooth feel and wax feel of natural jade; is fine and smooth in texture, excellent in toughness, and high in strength; is glittering and translucent; is convenient for further machine shaping; and can be widely used in the fields of substitute goods of high-grade stone. In addition, no radiation is generated by the low-fluorine microcrystalline glass.

Description

Technical field [0001] The invention relates to the field of glass-ceramics, in particular to a low-fluorine crystallite glass. Background technique [0002] With the steady and continuous development of my country’s national economy, people’s living standards have improved, and the demand for high-end building materials is increasing. In particular, the demand for non-radiation high-end stone substitutes is more urgent. However, domestic high-end stone substitutes are brittle. It is not easy to process and shape, leading to many high-end stones need to be imported from abroad, and the cost is greatly increased. [0003] Glass-ceramics, also known as ceramic glass, has the dual characteristics of glass and ceramics. Glass-ceramics are composed of crystals with regular atomic arrangement. Therefore, glass-ceramics have higher brightness than ceramics and stronger toughness than glass. Glass-ceramics concentrates the triple advantages of glass, ceramics and natural stone. It is super...

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Problems solved by technology

[0004] Most of the existing glass-ceramics are high-fluorine glass products. Due to the serious volatilization of fluorine in the production, the stability of production is not easy to control, resulting in a low success rate of glass-ceramics production. Even if glass-ceramics is successfully produced, there are still problems. Single tone, no texture, high surface porosity, low production stability and high brittleness, not easy to process and shape, etc., and high-fluorine glass products severely corrode the kiln during the production process, resulting in shortened service life of the kiln and high production costs. increase

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