How to identify good or bad quality glass |
Date:2013-09-25 Author:zhaoyang Hits:1157 |
Glass plate inspection, visual quality is mainly to check flatness, observe whether the bubbles, inclusions, scratches, lanes and fog spots and other defects, such defects of the glass, deformation will occur in use, reducing the glass transparency, mechanical strength and thermal stability of the glass, the construction should not be used. Because glass is transparent objects in the selection through visual, will be able to identify the basic quality of good or bad.
Glass processing products inspection, in addition to the requirements of flat glass detection, we must also examine the quality of its processing, testing whether the standard sizes, precision and pictorial clarity, etc. to meet the requirements, but does not allow incomplete edge.
Hollow glass brick appearance quality does not allow cracks in the glass body is not allowed to have an opaque melt, does not allow two vitreous bonding between splicing and bad. Visual brick should be corrugated, bubbles and glass body produced by the non-homogeneous layered stripes. Omo outer surface of the glass bricks should be less than 1 mm in the concave, convex should be less than 2 mm, weight should meet quality standards, no warping and surface nicks, burrs, and other defects, the angle to the Founder. |
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