Advantages of tempered glass:
One is high strength, and the other is safe to use. The increase of its bearing capacity improves the brittleness, and the tempered glass presents small fragments without acute angles even if it is damaged, which greatly reduces the harm to human body. Compared with ordinary glass, the quenching and heat resistance of tempered glass is improved by 3~5 times, and it can generally withstand the temperature difference of more than 250 degrees, which has obvious effect on preventing hot cracking. This is a kind of safety glass. Provide qualified materials to ensure the safety of high-rise buildings.
Disadvantages of tempered glass:
1. Tempered glass can no longer be cut and processed. Only the glass can be processed into 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, while ordinary glass has no possibility of self-explosion.
3. The surface of tempered glass will be uneven (wind spots) and its thickness will be slightly thinner. The reason for the thinning is that the glass is softened by hot melt and quickly cooled by strong wind, which makes the crystal gap inside the glass smaller and the pressure greater, so the tempered glass is thinner than before. Generally, the tempered thickness of 4~6mm glass is 0.2~0.8mm, and the tempered thickness of 8~20mm glass is 0.9 ~1.8mm.. The specific degree depends on the equipment, which is why tempered glass can't be used as a mirror.
4. The flat glass for building will be deformed after being tempered in a tempering furnace (physical tempering), and the degree of deformation is determined by the process of equipment and technicians. To some extent, it affects the decorative effect (except for special needs).