How to check a piecetempered glass coverIs it good or bad? It mainly depends on its appearance quality, whether it is flat, whether there are quality problems such as bubbles, inclusions, scratches, lines, and fog spots. If glass with such defects exists, it will deform during use, reduce the transparency, mechanical strength, and thermal stability of the glass, and should not be selected in engineering.

There are also certain considerations in the selection of glass. Step 1: Look at the fragments, which can be used to check whether the waste materials cut by the merchant have become fine blunt angle particles after being crushed, and then determine whether they are qualified; Step 2: Check the stress band. Under certain special natural light (or polarized light) conditions, investigate the reflected light of tempered glass. It can be seen that there are light and dark stripes on the surface of the glass, which are called stress bands due to inconsistent brightness; Step 3: Check the flatness. Tempered glass has slightly lower flatness than annealed glass and should be compared to choose one with better flatness; Step 4: Check if homogenization treatment has been carried out. Self explosion is an inherent characteristic of tempered glass. If homogenization treatment is carried out, more than 90% of self explosion hazards can be eliminated. When making a choice, it is necessary to refer to the product manual to clarify whether it has undergone homogenization treatment.

The inspection of glass processing products should not only follow the glass requirements mentioned above, but also check the processing quality, whether the standard scale, processing accuracy, and pattern clarity meet the requirements, and there should be no defects at the edges.

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