鋼化玻璃其實是一種預應力玻璃，為提高玻璃的強度，通常使用化學或物理的方法，在玻璃表面形成壓應力，玻璃承受外力時首先抵消表層應力，從而提高了承載能力，增強玻璃自身抗風壓性，寒暑性，沖擊性等。

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.