What are the defects on the surface of the glass?

Surface defects of glass:

1 There are micropores or voids on the surface of the glass:

It is mainly formed by the volatilization of the surface composition. Due to the volatilization of the alkali, the surface is formed on the surface, and the upper surface of the float glass has more protrusions and depressions than the lower surface (tin surface). The porosity of the glass surface allows the glass to facilitate ion exchange on the surface and allows the surface to easily react with O2, SO2, H2O, HCL, and the like. Therefore, the upper surface of the float glass is prone to mold, and it is easy to perform surface coloring or the like.

2 There are cracks on the glass surface:

These cracks are not mechanical damage, but are related to the internal structure: the surface strength is low and cracks are easily generated.

3 moldy during storage and transportation:

Mildew of silicate glass occurs mainly during storage or transportation after packaging, which is related to packaging, storage and transportation.

The package can be packaged in a hot state or in a cold state with paper or mildewproof powder.

1 is usually stored in a well-ventilated warehouse;

2 Do not allow the glass box to be placed directly on the damp floor in the warehouse;

3 It is not allowed to store glass outdoors and under direct sunlight. Moldy can also be observed by spray wetting under natural light.

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