TOP > Products > Basic Type of Automotive Glass Tempered Glass <TEMPERLITE>
Tempered glass is produced by heating glass to near melting point (approx. 650℃) and rapidly cooling the surface uniformly with air. Glass produced by this special process has enhanced strength and is used mainly for the rear and side windows of vehicles. It has the characteristic of fracturing instantly if broken.
Tempered glass is created by heating glass to near melting point and generating compressive stress on the surface of the glass through rapid cooling with air. When the glass is in danger of being broken by tensile force, the force is counteracted by the surface compressive stress. Tempered glass is three to five times stronger than ordinary glass pane of the same thickness.
Tempered glass is strong. But if subjected to an external force that exceeds the limit of the compressive stress, it will fracture. Unlike ordinary glass, however, if broken, it fragments into small pieces. As there are no sharp, knife-like shards, it is unlikely to cause serious injury. That is why tempered glass is recognized as safety glass.
Glass Bending & Forming Technology
At 670℃, glass enters the viscoelastic state and can be bent. However wrinkles will also be formed at the same time. Also, if the glass is bent too sharply, the view through the glass will be distorted. Using various types of simulation technologies, AGC Automotive has achieved a high degree of forming freedom and accuracy with TEMPERLITE.
