What is tempered glass? Tempered glass is made by cutting ordinary annealed glass into the required size, then heating it to about 700 degrees near the softening point, and then cooling it quickly and evenly, so the safety performance of tempered glass is undoubtedly the highest among glass materials. In fact, the advantages of tempered glass do not stop there. What are the advantages and disadvantages of tempered glass? Let's see the answers we will give you one by one.
What is tempered glass?
Tempered glass is a kind of safety glass. Tempered glass is actually a kind of prestressed glass. In order to improve the strength of glass, compressive stress is usually formed on the surface of glass by chemical or physical methods. When the glass bears external force, it first counteracts the surface stress, so as to improve the bearing capacity and enhance the wind pressure resistance, cold and heat resistance and impact resistance of the glass itself.
What are the advantages and disadvantages of tempered glass?
Advantages and safety of tempered glass 1
When the glass is damaged by external force, the fragments will break into obtuse-angled particles similar to honeycomb, which is not easy to cause serious harm to human body. Safe use, increased bearing capacity and increased brittleness. Even if the tempered glass is damaged, it is a small fragment without acute angle, 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.
Advantages of tempered glass II. high-intensity
The impact strength and bending strength of tempered glass with the same thickness are 3-5 times that of ordinary glass.
Advantages of tempered glass. heat resistance
Tempered glass has good thermal stability, and can withstand three times the temperature difference of ordinary glass and the temperature difference change of 300℃.
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.
Disadvantages of tempered glass II. Although the strength of tempered glass is stronger than ordinary glass, tempered glass has the possibility of self-explosion, while ordinary glass has no possibility of self-explosion.
Disadvantages of tempered glass 3. The surface of tempered glass will be uneven (wind spots) and the 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.
Disadvantages of tempered glass 4. The flat glass for building will generally deform after being tempered in a tempering furnace (physical tempering), and the degree of deformation is determined by the technology of equipment and technicians. To some extent, it affects the decorative effect (except for special needs).
That's what Bian Xiao brought you. What is tempered glass? What are the advantages and disadvantages of tempered glass? The whole content.