Distinguish tempered glass by listening to sound

Oct 19, 2024

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It is understood that the difference between tempered glass and ordinary glass is mainly analyzed from the manufacturing principle of tempered glass. Tempered glass is obtained by cutting ordinary annealed glass into the required size, heating it to a near softening point, and then rapidly and uniformly cooling it. After tempering treatment, uniform compressive stress is formed on the surface of the glass, while tensile stress is formed inside, greatly improving the performance of the glass. The tensile strength is more than 3 times that of ordinary glass, and the impact resistance is more than 5 times that of ordinary glass

There seems to be no difference between tempered glass and ordinary glass on the surface, unless the glass is broken. However, how to distinguish between the two while ensuring the integrity of the glass? Regarding this, the reporter consulted Zhou Jiancheng, the person in charge of Wanxing Glass Headquarters. Zhou Jiancheng introduced that currently in the industry, the main way to distinguish tempered glass from ordinary glass is by listening, which means tapping the glass with your hand. If the glass makes a crisp sound, it means it is tempered glass, otherwise it is ordinary glass. Generally, frosted or frosted tempered glass is more suitable for bathrooms.