now, tempered glass is more and more popular, even tempered glass used as the raw materials for insulated glass and laminated glass.
First, cut the float glass to the required size and shape.
then use glass tempering furnace to heat the glass to around 700 degrees. This temperature is near the softening point, after heating, rapidly and evenly cooling it (usually 5-6MM glass is heated for about 240 seconds and cooled for about 150 seconds at a high temperature of 700 degrees. 8-10MM glass is heated for about 500 seconds and cooled for about 300 seconds at a high temperature of 700 degrees. In short, the time for heating and cooling varies depending on the thickness of the glass).
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, which is about four times stronger than ordinary annealed glass.
But for tempered glass, you can not re-process it, you can not cut it again. Otherwise, it would broken to pieces.
