Tempering process of touchable glass

Abstract

A safety reinforcing agent in a touch-controllable glass tempering technology includes following raw materials, by weight: 1-5 parts of Cs2O, 10-30 parts of Alkyl alcohol ether carboxylate (AEC), 1-5 parts of Rb2O, 10-50 parts of potassium amino acid salt, 1-10 parts of B2O3, 2-10 parts of Al2O3 and 1-10 parts of MgO2. The safety reinforcing agent in the touch-controllable glass tempering technology can form a chemical gradient permeable layer under a glass tempered layer, so that the molecular composition structure of glass molecules outside the tempered layer can be changed, an acute angle of broken glass can be reduced and a use safety of the chemical tempered glass can be achieved.

Description

[0001] Technical field: [0002] The invention belongs to the tempering process of touchable glass in the field of glass tempering, and specifically relates to a tempering process of touchable glass. [0003] Background technique: [0004] At present, the touchable glass tempering process is based on the ion exchange method. The specific method is to immerse the glass in a molten potassium nitrate pool to promote the exchange of sodium ions on the glass surface with potassium ions in the potassium fertilizer tank. In the absence of a catalyst, potassium ions (K+) will be released in a hot environment around 420 degrees, and potassium ions (K+) will gradually replace sodium ions (Na+) on the glass surface, and potassium salt ions with larger molecular volumes will press the glass surface Increase its impact resistance. Potassium nitrate has a toughening effect on almost all alkali glasses under certain conditions, so potassium nitrate is basically a necessity for glass temperin...

AI Technical Summary

Problems solved by technology

Catalysts can be used to reduce the release temperature of potassium ions, but existing catalysts have some defects in the ion exchange effect on the touchable glass surface. A type of catalyst can greatly increase the ion exchange rate in the tempering process, but in mass production Sometimes there will be uneven and unstable glass surface tempering stress and tempering depth, and the fluctuation range is too large, resulting in about 10% to 30% of out-of-spec defects; another type of catalyst can stabilize the mass production process The glass surface tempering stress value and tempering depth value can increase the qualified product rate of mass production to 95%, but the relatively slow tempering time greatly affects the improvement of mass production efficiency and the reduction of production costs. Therefore, the above two types of catalysts are used in the production process There will be different degrees of production defects in the mass production process of tempering, and most of the current tempering processes only emphasize the strengthening stress and strengthening depth of the strengthening layer, ignoring the tightness of the ionic chain combination of the strengthening layer, resulting in After the glass is broken, the sharpness of the water chestnut and the amount of fragments are relatively large, and the safety of tempered glass is low

Images