Before understanding tempered glass, first we need to know what glass is? Glass is an amorphous inorganic non-metallic material, generally composed of a variety of inorganic mineral raw materials (such as quartz sand, borax, boric acid, barite, limestone, barium carbonate, feldspar, soda ash, etc.) plus a small amount of auxiliary raw materials. Its main components are silicon dioxide and other oxides.

The production of tempered glass is divided into physical tempering and chemical tempering. According to the degree of toughening can be divided into fully tempered glass, semi-tempered glass and partially tempered glass. Physical tempering is further divided into air-cooled, liquid-cooled and particulate tempering and other kinds. It is to heat the glass in the tempering furnace to a certain degree, and then cool down uniformly and quickly to get tempered glass. The equipment of physical tempering is mainly tempering furnace, which consists of two parts: heating and quenching and cooling, and the delivery method is horizontal and vertical tempering furnace. Currently the world's most commonly used tempering method for the horizontal roller tempering method. The hardness of the glass is enhanced after tempering and becomes the hardness of ordinary glass.

Tempered glass in the processing and production after the general can not be deep processing. Cutting, punching, slotting, etc. are not allowed. If you encounter the size is not suitable, the difference is not large, then you can grind the edge machine for grinding, but the amount of grinding is limited, usually each edge can not be greater than half the thickness of the glass. For example, tempered glass, the maximum can be ground off

This is a superficial explanation of tempered glass, if you have the opportunity, a more detailed description of the tempered glass process. Most of the arguments and expressions in the discussion are borrowed from China Glass Network, Baidu Library and other resources