Views:0 Author:Site Editor Publish Time: 2022-01-08 Origin:Site
Tempered glass is safety glass. Glass has fairly good wear properties and is very hard, with a Vickers hardness of 622 to 701. Tempered glass is actually a kind of prestressed glass. In order to improve the strength of the glass, chemical or physical methods are usually used to form compressive stress on the surface of the glass. When the glass is subjected to external force, it first offsets the surface stress, thereby improving the bearing capacity and enhancing the resistance of the glass itself. Wind pressure, cold and heat, impact, etc. The tempered glass protective film is a higher level of protection for the mobile phone screen.
The tempered film is to prevent the screen from shattering when the phone slips. Not for scratch resistance. Ordinary films have a hardness of 3H, and there will not be too many scratches after a few months of use. The reason why the tempered screen is selected is: high hardness, low toughness, and the mobile phone is dropped, which can prevent the screen from breaking. When the phone falls to the ground, the impact force is great, and the screen will shatter if the tension is too large. The toughness of the tempered film is low. When the tension is transmitted from the mobile phone, the film will bear the tension, which greatly reduces the tension on the main screen.