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Glass material quality appraisal

Glass material quality appraisal

Glass plate inspection, the appearance of quality is mainly to check the flatness, to see whether the bubbles, inclusions, scratches, lines and fog spots and other quality defects, the existence of such defects in the glass, the use of deformation will occur, reducing the glass Transparency, mechanical strength and thermal stability of glass, engineering should not be used. As the glass is a transparent object, after the selection of the visual inspection, the basic can identify the quality of good or bad. Glass products inspection, in addition to flat glass testing requirements, but also test the quality of its processing, testing the size of the standard size, processing accuracy and clarity of the pattern meet the requirements, while the edge is not allowed to have incomplete.

Hollow glass brick appearance quality does not allow cracks in the glass body does not allow opaque unmelted material, does not allow the two glass between the welding and bonding bad. Visual inspection of brick should not be corrugated, bubbles and glass body caused by inhomogeneous layered streaks. The outer surface of the glass brick large concave surface should be less than l mm, convex should be less than 2 mm, the weight should meet the quality standards, no surface warping and gaps, burrs and other quality defects angle to Founder.