Tempered glass and heat-resistant glass which is good?
1. heat-resistant glass in the case of rapid cold and heat to withstand better, indicating that the coefficient of thermal expansion (due to the temperature of the increase in the ratio of the expansion of the glass body) is relatively small and in the rapid temperature change is not easy to break. It has a series of excellent properties such as low expansion, thermal shock resistance, high temperature resistance, corrosion resistance and high strength. High borosilicate heat-resistant glass material with high safety coefficient, will never occur similar to the phenomenon of self-explosion of tempered glass, coefficient of thermal expansion is small, resistant to rapid temperature changes in a wide range (≥ 120 ° C), heat-resistant up to 800 ℃. In addition, the material added borosilicate heat-resistant glass, also known as pensilicate glass is containing borosilicate borosilicate glass.
2. And tempered glass is also known as reinforced glass. Strengthened by the treatment, with good mechanical properties and heat shock resistance of the glass products collectively. Usually referred to as tempered glass refers to the wind quenching treatment of flat glass products. It has high bending strength, mechanical impact resistance and thermal shock resistance. After breaking, the fragments do not have sharp edges and corners, reducing the harm to people. Tempered glass can not be mechanically cut, drilling and other processing.
What is the difference between tempered glass and heat-resistant glass?
1, the use of different purposes, tempered glass is widely used in construction, decoration, automobile manufacturing industry (windows, doors, curtain walls, interior decoration, etc.), furniture manufacturing industry (furniture supporting, etc.), home appliance manufacturing industry (TV, oven, air conditioning, refrigerator and other products). The main application of hot glass in daily necessities industry (heat-resistant glass preservation box, heat-resistant glass tableware, etc.), the medical industry (mostly used for medical ampoules, experimental beakers).
2, temperature changes affect different, heat-resistant glass is a strong thermal shock (can withstand rapid changes in temperature, thermal expansion coefficient is small), the use of high temperature (strain temperature and softening temperature is high) of the glass, so in the oven and microwave ovens, even in the sudden change in temperature can also be used safely. Tempered glass may burst after a sudden change in temperature in a microwave oven. In the process of making tempered glass, there is "nickel sulfide" inside the glass, which makes the glass expand with time and temperature changes, and may explode. Cannot be used in the oven at all.
3, broken in a different way, heat-resistant glass is cracked when broken, will not fly apart. Heat-resistant glass is not due to nickel sulfide risk of spontaneous combustion, because the heat-resistant glass is slowly cooled, there is no condensation of energy within the glass, so when broken will not fly apart.
Tempered glass and heat-resistant glass which is better in fact this is no fixed standard, everyone has different needs for the glass, so for the natural needs of the glass is not the same. In fact, if you want to know which one is better, then you have to understand what the difference between tempered glass and heat-resistant glass, only to distinguish between them to be able to better choose the right glass material. I hope the introduction can help you.