Toughening method of domestic glassware, and toughened glassware

Abstract

The invention provides a toughening method of domestic glassware, and toughened glassware. The toughening method of domestic glassware comprises following steps: 1, high temperature melting, wherein glass raw material A and glass raw material B are introduced into pot furnaces at 1450 to 1700 DEG C for melting so as to obtain liquid state glass A and liquid state glass B respectively, wherein theglass raw material B is one or a mixture of a plurality of components selected from high lithium glass, high potassium glass and high lithium potassium glass; 2, surface spraying, wherein the liquid state glass A is cooled to 1000 to 1200 DEG C, and is subjected to shearing so as to obtain a material blank, the liquid state glass B is sprayed onto the surface of the material blank, and cold wind cooling is carried out; 3, moulding processing; and 4, annealing processing. According to the toughening method, surface spraying of high lithium and potassium glass and surface pre-cooling technologyare adopted, so that before moulding of the glass material blank, a surface pre-shrinked high potassium, high lithium, or high lithium and potassium surface layer is formed on the surface of the glassmaterial blank, after moulding, a high lithium high potassium filled layer is formed on glassware, physical cooling toughening is adopted for combination, so that secondary toughening is realized, and the glassware toughening effect is better.

Description

technical field [0001] The invention relates to the technical field of glass, and specifically discloses a tempering method for daily-use glassware and the tempered glassware. Background technique [0002] In order to improve the strength of glass products, chemical or physical methods are usually used to form compressive stress on the glass surface. When the glass is subjected to external forces, the surface stress is first offset, thereby improving the bearing capacity. There are two common methods of glass tempering: physical tempering and chemical tempering. After tempering, uniform compressive stress is formed on the surface of the glass, while tensile stress is formed inside, which improves the bending and impact strength of the glass, and its strength is about four times that of ordinary annealed glass. [0003] Physical tempered glass is also called quenched tempered glass. Its principle is to heat the glass to a suitable temperature and eliminate internal stress th...

AI Technical Summary

Problems solved by technology

However, the above two methods are secondary treatment process, the treatment time is long, the energy consumption is high, and the process is complicated.