钢化玻璃其实是一种预应力玻璃，为提高玻璃的强度，通常使用化学或物理的方法，在玻璃表面形成压应力，玻璃承受外力时首先抵消表层应力，从而提高了承载能力，增强玻璃自身抗风压性，寒暑性，冲击性等。

In fact, tempered glass is a kind of prestressed glass. In order to improve the strength of glass, it usually uses chemical or physical methods to form pressure stress on the surface of glass. When the glass bears the external force, it first counteracts the stress of the surface, thus improving the bearing capacity, enhancing the anti wind pressure, heat and shock, and so on.