The difference between tempered glass and heat-resistant glass?
a, the use of different tempered glass is widely used in construction, decoration, automobile manufacturing industry (doors and Windows, curtain walls, interior decoration, etc.), furniture manufacturing industry (furniture supporting, etc.), home appliance manufacturing industry (TV, oven, air conditioning, refrigerator and other products). Heat-resistant glass is mainly used in the daily necessities industry (heat-resistant glass crisper, heat-resistant glass tableware, etc.), the medical industry (mostly used in medical ampoules, experimental beakers).
b, temperature changes affect different heat-resistant glass is a heat-resistant impact force (can withstand rapid cooling rapid temperature changes, thermal expansion coefficient is small), the use of high temperature (strain temperature and softening temperature) of the glass, so in the oven and microwave oven, even when the temperature changes suddenly can be safe to use. Tempered glass in the microwave oven after a sudden change in temperature may produce a burst phenomenon. In the process of making tempered glass because of the internal contains "nickel sulfide", with the change of time and temperature, so that the glass expands, there is the possibility of self-explosion. Completely unusable in the oven.
c, broken in different ways when the heat resistant glass broken is cracked, will not fly. Heat-resistant glass is not in danger of self-explosion due to nickel sulfide, because heat-resistant glass is slowly cooling, there is no condensing energy inside the glass, so it will not fly when broken. Tempered glass will burst and fly when broken. Tempered glass in the process of tempering, the glass inside the formation of prestress and condensation energy, so in the damage or self-explosion, its condensation energy will be released, forming fragments flying, while producing an explosion.
What are the advantages of tempered glass?
High strength, the impact resistance and bending resistance of tempered glass are three to five times that of ordinary glass under the same thickness. Thermal stability, is three times the temperature difference of ordinary glass, with three hundred degrees of temperature change tolerance. Safety, which is mainly from the protection of the human body convenient to say, if the tempered glass is destroyed by a particularly large external force, the fragments are honeycomb obtuse small particles, so that you can reduce the harm to the human body.
The difference between tempered glass and heat-resistant glass is very big, people can make a clear difference when purchasing, but also pay attention to the choice of brand product quality, quality can be guaranteed, what are the advantages of tempered glass, his advantages are very much, people should also pay attention to maintenance when using tempered glass at ordinary times, so as to extend the use of time, Let the tempered glass have a better role.
Glass is the decoration and decoration material used in modern buildings, because it is beautiful, generous and does not affect the advantages of shading is widely used in various occasions, but with the continuous development of technology, tempered glass has become the main glass material used, because of its stable performance, is loved by people, but the emergence of various tempered glass, also let us feel confused when choosing. How to choose a good tempered glass?
First of all, a good tempered glass should be in line with the national 3C certification, the thickness of tempered glass is generally 3-19mm, according to the different flat tempered glass and curved tempered glass in the manufacturing process and size are different. But in fact, the production process of glass is more exquisite, so you can roughly judge the quality of glass by naked eye observation.
Before the observation, we must understand the production process of tempered glass, tempered glass heating ordinary annealed glass to a temperature closer to the softening point, and then rapid cooling, after tempering the performance of the glass will be greatly improved, tensile, impact resistance. The surface compressive stress and internal tensile stress of tempered glass are important symbols for the identification of tempered glass.
First of all, you can check the workmanship of the glass, whether the edge is smooth and smooth; Whether the thickness meets the requirements; Whether the pattern is complete, etc. Through the general smooth, smooth feeling will have a general understanding of product quality.
The second should be to watch the flatness, carefully check whether there are obvious quality defects such as bubbles, debris, fog spots, scratches inside the tempered glass, if there are obvious defects will have an impact on the quality of the tempered glass, because in the transportation process may reduce the transparency of the glass, increase the instability of the glass.
In addition, due to the special processing process of tempered glass, pressure lines will be formed inside the glass, but the use of polarizer (general glasses or camera lenses will have) to observe the edge and inside of the glass may see color stripes and black and white spots. Turn the glass carefully observe and there will be different graphics appear.
