Tempered glass surface due to improper processing or operation

Causing defects such as scratches, blowouts, and deep edges, which can easily lead to stress concentration or self explosion of tempered glass.
② Uneven stress distribution and deviation in tempered glass
The temperature gradient generated along the thickness direction of glass during heating or cooling is uneven and asymmetric. There is a tendency for self explosion in tempered products, and some may experience "wind explosion" during quenching. If the tensile stress zone is offset to one side of the product or to the surface, tempered glass will form self explosion.
③ The influence of tempering degree has been experimentally proven to increase the self explosion rate to 20%~25% when the tempering degree is increased to level 1/cm. It can be seen that the greater the stress, the higher the degree of tempering, and the greater the amount of self explosion.