At present, the glass market has grown increasingly popular, and the detection of glass quality is also important when purchasing magnifying glaas. For the inspection associated with glass sheets, the appearance quality is especially to check the flatness and observe the quality defects such as bubbles, inclusions, scrapes, lines and fog destinations. If there is a real defective glass, deformation will occur during use, which reduces the transparency in the glass, mechanical strength and thermal stability on the glass, and is not well suited for engineering use. Since the glass is usually a transparent object, the appearance can be detected whilst selection, and the quality is often basically identified.
Inspecting glass processed products, in addition on the requirements of fire resistant glass supplier, should also check the particular processing quality, check whether the standard size, processing accuracy and pattern definition meet what's needed, and the side just isn't allowed to be defective.
The appearance quality in the hollow glass brick must not be cracked, and there really should be no opaque unmelted material in the glass blank, and the welding and bonding between the 2 glass bodies cannot become poor. Visual inspection in the brick body should be without any corrugations, bubbles and lamellar streaks resulting from inhomogeneities from the glass blank. The outer surface in the large surface of the glass brick need to be less than 1 mm, the convexity ought to be less than 2 mm, the weight should meet the quality standard, no surface warpage, level, burr and other high quality defects, the angle should be square. The above is the general method for identifying the caliber of glass. Special glass is required to be tested with special technology.
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