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Tempered glass production process
Jun 02, 2017

Toughened glass with high impact strength (4 to 5 times higher than ordinary flat glass), bending strength (5 times higher than ordinary flat glass), good thermal stability and smooth, transparent, cutting and so on. In case of super impact damage, the fragments were scattered small granular, no sharp edges and corners, it is also known as safety glass.

There are two kinds of production of tempered glass: one is the ordinary flat glass or float glass in a specific process conditions, the quenching method or air-cooled quenching method from processing. The other is the ordinary flat glass or float glass through the ion exchange method, the glass surface composition changes, the glass surface to form a layer of stress layer processing.

Tempered glass is divided into flat tempered glass and curved tempered glass. Flat tempered glass thickness of 4,5,6,8,10,12,15,19 mm eight; curved glass thickness of 5,6,8 mm three. Tempered glass prices vary depending on the thickness of the thickness of 12mm, for example (not more than the previous size), the general price of 100-140 yuan / square meter, plus grinding costs 3-5 yuan / m. Commonly used thickness of 10mm, 8mm. The price should be lower.

Tempered glass is heated to about 700 ℃ glass, and then rapid cooling, so that the formation of glass surface compressive stress, according to the degree of treatment can be divided into all-steel and semi-tempered glass (also known as heat-strengthened glass).

Full glass of glass characteristics: tempered glass is about 3-4 times the strength of ordinary glass; when the glass is destroyed by external forces, the size of the bean particles to reduce the harm to the human body; can withstand rapid changes in temperature (for example: 5mm tempered glass About 200 ° C temperature range).

Tempered glass according to its appearance quality is divided into: excellent, qualified two categories.

Tempered glass is divided into categories: Class I, Class II and Class III.