Tempered glass blew small knowledge, you get it?

Tempered glass blew is the automatic cracking of tempered glass in the absence of direct mechanical external force. There are many reasons to produce blew, simply sum up the following: ①, glass stones, impurities, bubbles: glass impurities are tempered glass is weak, but also stress concentration. In particular, if the stone in the tempered glass tensile area is an important factor leading to burst. ②, glass containing nickel sulfide crystals, nickel sulfide crystal phase change caused by changes in the tempered glass blew. ③, the glass surface due to processing or improper operation caused by scratches, fried mouth, deep burst edge and other defects, easy to cause stress concentration or lead to tempered glass blew. ④, the uneven distribution of stress in the tempered glass, offset or stress caused by high.

In general, the glass of the steel processing process occurs from the cause of blew to the situation ③, ④ mostly; glass factory blew after the situation ①, ② mostly; glass installation is often completed after the case is the most typical.