The glass is a kind of utensil that is often used, and it is almost inseparable from its existence in life. So do you often see in the news that the glass bursts after adding hot water, and with the demand of consumers? With the continuous improvement, there are all kinds of glass cup styles on the market. How should we choose a high temperature resistant glass cup? What is the reason? Today, Xiaobian will introduce it to     you,glasscookware.



First of all, everyone should know that not all glasses will break when exposed to hot water, but why do some glasses break?

In the past, when buying a glass, the salesperson would tell you whether it was a hot or cold water glass. The cold water glass is the one that will break when it encounters scalding hot water; the hot water glass will not. But The glasses you are in now should all be hot water glasses. Especially in China, we all use glasses to make tea, so is it a good thing that the glasses cannot touch the hot water. The water is at an atmospheric pressure. The boiling temperature is 100 degrees Celsius, in our daily life, we will not have water above 100 degrees.

If thermal expansion and contraction were the main reason, then all glasses should have broken when exposed to scalding hot water. This is not the case.
Therefore, thermal expansion and cold contraction are part of the reason. In the process of manufacturing the glass, it is also a very important reason that the glass is not properly treated and the glass is not manufactured correctly. As long as the thermal expansion coefficient of the glass is compared Small, and the heat transfer coefficient is made relatively large, so that the glass will not be broken. If the glass can be tempered, it will not be broken.