Defect formation of glassware products
Author：admin 发布时间：2021-03-18 16:19:34
The defects of glass bottles can be divided into two categories: appearance defects and internal defects. The so-called appearance defects generally reflect defects that can be observed with the naked eye, while internal defects are generally invisible to the naked eye and can only be known with the help of measuring instruments and chemical analysis methods.
Defects on glassware products can also be divided into melt defects and manufacturing defects according to the reasons for their formation. Melt defects refer to defects in the molten glass itself, such as bubbles, stones, streaks, crystallization, chromatic aberration, etc. The cause of these defects is mainly caused by poor glass melting. Defects formed during the manufacturing process of products, such as explosion cracks, micro-cracks, scratches, deformations, size deviations, cold spots, wrinkles, streamline ripples, mold sticking, prints, fire spots, pollution and various decorative defects. These are all visible defects. Intrinsic defects mainly refer to the uniformity of glass, annealing stress, chemical stability and thermal shock, etc. The appearance defects mainly affect the aesthetic effect of the product, and the intrinsic defects directly affect the quality of the product.
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