How does Tempered Glass Cover provide impact resistance in terms of strength?
Publish Time: 2024-05-24
The impact resistance of Tempered Glass Cover mainly depends on the following factors:
Physical tempering process: Tempered glass is obtained by physically heating ordinary glass to close to the softening point and then cooling it quickly and evenly. This process will form compressive stress on the surface of the glass and tensile stress inside, thereby enhancing the impact resistance of the glass.
Surface stress uniformity: During the tempering process, a uniform compressive stress layer will be formed on the surface of the glass. This surface stress uniformity can effectively improve the impact strength and bending strength of the glass, thus improving its overall safety.
Prestressed design: When producing tempered glass, a certain amount of pressure, called prestress, will be generated inside or on its surface. When external stress is applied, part of the force must first be used to offset the prestress inside or on the surface of the material, which actually improves the material's mechanical properties such as impact resistance.
Chemical strengthening: In addition to physical tempering, glass can also be strengthened through chemical methods, such as ion masking, ion exchange, etc. These methods can form a chemical layer in a compressive stress state on the glass surface to further improve the impact resistance of the glass. In particular, sodium silicon ion exchange can replace sodium ions with silicon ions on the glass surface to form a silicon ion glass layer with compressive stress, thereby improving impact resistance.
To sum up, Tempered Glass Cover provides impact resistance through various methods such as physical tempering process, surface stress uniformity, prestressed design and chemical strengthening. These features allow the Tempered Glass Cover to effectively resist breakage when subjected to external impact thereby improving its safety and durability.
