Quality appraisal method for glass materials of th

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The first category is glass plate, which is mainly used for the parts that need lighting in decoration, including flat glass, embossed glass, frosted glass, coated glass, engraved glass, tempered glass and other varieties, which can be selected according to the requirements of different parts and different decorative effects

the other is glass bricks, which are mainly used in glass partitions, glass walls and other projects, mainly hollow glass bricks. It can be divided into single chamber and double chamber. It can be planted only when the oil return valve is closed. There are also square bricks, rectangular bricks and other specifications. Its surface shape is also very rich, which can be selected and used according to the decoration needs

The development of domestic friction and wear testing machines is arduous

quality appraisal of glass materials

1 Inspection of glass plate. The appearance quality is mainly to check the flatness and observe whether there are quality defects such as bubbles, inclusions, scratches, lines and fog spots. The glass with such defects will be deformed in use, which will reduce the transparency, mechanical strength and thermal stability of the glass, so it is not suitable for engineering. As the glass is a transparent object, the quality can be basically identified by visual inspection during selection

hrb600 brand

2 was added Inspection of glass processing products. In addition to testing according to the requirements of flat glass, its processing quality should also be tested to check whether the specification and size are standard, whether the processing accuracy and pattern definition meet the requirements, and at the same time, the edges should not be incomplete

cracks are not allowed in the appearance quality of hollow glass bricks, opaque unmelted substances are not allowed in the glass body, and poor fusion and bonding between two glass bodies are not allowed. The bricks shall be free from ripple, bubbles and layered stripes caused by heterogeneity in the glass body in recent 10 years. The concave of the outer surface of the large surface of the glass brick should be less than 1mm, and the convex should be less than 2mm. The weight should meet the quality standard, without surface warpage, notch, burr and other quality defects, and the angle should be square

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