Experts teach you how to distinguish tempered glas

2022-07-22
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After the toughened glass is broken, the fragments will break into uniform small particles and there are no sharp corners like ordinary glass knives, so it is called safety glass and is widely used in cars and interior decoration

after the toughened glass is broken, the fragments will break into uniform small particles and there are no sharp corners like ordinary glass knives, so it is called safety glass and is widely used in cars and interior decoration

in the home, the sharp knife shaped sharp corners after the ordinary glass is broken are easy to cut children or colliders, causing personal injury. Whether the broken glass becomes small particles or knife shaped is the main difference between tempered glass and ordinary glass. However, in engineering inspection, it is undoubtedly unrealistic to adopt such destructive inspection

then how can you know whether you bought tempered glass or not

this also needs to be 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 close softening point, and then cooling it quickly and evenly. After tempering, the surface of the glass forms uniform pressure, while the interior forms tension, which greatly improves 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

it is precisely this feature that the tension feature has become an important symbol for distinguishing true and false tempered glass, that is, the tempered glass can see color stripes on the edge of the glass through the polarized light sheet, and black and white spots can be seen on the surface of the glass. Polarizer can be found in camera lens or glasses. Pay attention to the adjustment of light source when observing, so it is easier to observe

the state has clearly stated in the "Regulations on the administration of building safety glass" that indoor glass products such as bathroom partitions must use safety glass. All aluminum alloy doors use tempered glass, and the logo of "national 3C certification" is printed on the front of the glass, ensuring the safety and reliability of aluminum alloy doors

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