What principle is applied to tempered glass?

- Mar 26, 2018 -

1. Principle: Tempered glass is actually a kind of prestressed glass. In order to increase the strength of glass, chemical or physical methods are usually used to form compressive stress on the glass surface. When the glass receives external force, it first counteracts the stress of the surface layer, thereby increasing the carrying capacity. Strengthen the glass itself resistance to wind pressure, cold and heat, impact and so on.

2, tempered glass is the general annealed glass first cut into the required size, and then heated to approximately 700 degrees near the softening point, and then obtained by the rapid and uniform cooling (usually 5-6MM glass heated at 700 degrees for 240 seconds high temperature About 150 seconds cool down. 8-10MM glass is heated at about 700 degrees for about 500 seconds and cooled for about 300 seconds. In short, depending on the thickness of the glass, the time for heating and cooling is different.) After the tempering treatment, uniform compressive stress is formed on the surface of the glass, and tensile stress is formed on the interior of the glass, so that the bending strength and impact strength of the glass are improved, and the strength thereof is approximately four times higher than that of the ordinary annealed glass. Tempered tempered glass that has been tempered can no longer be subjected to any cutting, grinding, etc., or damaged, or it will be "crashed" by breaking the uniform compressive stress balance.


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