Advantages and disadvantages of tempered glass

Tempered glass (Reinforced glass) belongs to safety glass. Tempered glass is actually a kind of prestressed glass. In order to increase the strength of the glass, chemical or physical methods are usually used to form compressive stress on the glass surface. When the glass receives external force, it first counteracts the stress of the surface layer, thereby increasing the carrying capacity and enhancing the glass resistance. Wind pressure, cold and heat, impact and so on.

advantage

The first is that the strength is several times higher than that of ordinary glass, and it is resistant to bending.

The second is the use of safety, and its increased carrying capacity improves the fragile nature. Even if the toughened glass breaks down, there are small pieces with no acute angles, and the damage to the human body is greatly reduced. Tempered and heat-resistant properties of tempered glass are 3 to 5 times higher than those of ordinary glass. Generally, they can withstand temperature changes of more than 250 degrees, which has a significant effect on preventing hot burst. It is a kind of safety glass. To ensure the safety of high-rise buildings to provide qualified materials.

Shortcomings

1. After tempered glass can no longer be cut and processed, the glass can only be processed to the required shape before tempering, and then tempered.

2, Although the strength of tempered glass is stronger than ordinary glass, but the tempered glass has the possibility of self-explosion (self rupture), and common glass does not have the possibility of self-explosion.

3, the surface of the tempered glass will have irregularities (wind spots), there is a slight thickness thinning. The reason for the thinning is that after the glass is softened by the hot melt, the glass is rapidly cooled by the strong wind force, and the crystal gap inside the glass is made smaller and the pressure becomes larger, so the glass is thinner after tempering than before tempering. Under normal circumstances 4-6MM glass thinning 0.2-0.8MM after tempering, 8-20MM glass thinning after tempering 0.9-1.8MM. The specific degree depends on the equipment, which is why the tempered glass cannot be mirrored.

4. The flat glass used in construction after the tempering furnace (physical tempering) is generally deformed. The degree of deformation is determined by the equipment and technicians. To a certain extent, the decorative effect is affected (except for special needs).