Characteristics of tempered glass
Time: 2021-09-28 Views: 642
safety
When the glass is damaged by external force, the fragments will be broken into small particles with obtuse angles similar to honeycomb, which is not easy to cause serious harm to the human body.
high strength
The impact strength of tempered glass with the same thickness is 3 to 5 times that of ordinary glass, and the bending strength is 3 to 5 times that of ordinary glass.
Thermal stability
Tempered glass has good thermal stability, the temperature difference that it can withstand is 3 times that of ordinary glass, and it can withstand a temperature difference of 300°C.
advantage
The first is that the strength is several times higher than that of ordinary glass, and it is resistant to bending.
Second, it is safe to use. The increased bearing capacity improves the fragile nature. Even if the tempered glass is damaged, it will be small fragments without acute angles, which greatly reduces the damage to the human body. Compared with ordinary glass, the resistance to rapid cooling and rapid heating of tempered glass is improved by 3 to 5 times. It is a type of safety glass. To ensure the safety of qualified materials for high-rise buildings.
shortcoming
Disadvantages of tempered glass:
1. The 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 that of ordinary glass, tempered glass has the possibility of self-explosion (self-breaking), while ordinary glass does not have the possibility of self-explosion.
3. The surface of the tempered glass will be uneven (wind spot), with a slight thickness thinning. The reason for the thinning is that after the glass is softened by hot melt, it is rapidly cooled by strong wind, so that the crystal gap inside the glass becomes smaller and the pressure becomes larger, so the glass is thinner after tempering than before tempering. Under normal circumstances, 4~6mm glass will be thinned by 0.2~0.8mm after tempering, and 8~20mm glass will be thinned by 0.9~1.8mm after tempering. The specific degree depends on the equipment, which is why tempered glass cannot be used as a mirror.
4. The flat glass used for construction after passing through the tempering furnace (physical tempering) will generally be deformed, and the degree of deformation is determined by the equipment and technicians. To a certain extent, the decorative effect is affected (except for special needs).