From the stress characteristics common to see the difference between glass and glass |
Date:2013-11-25 Hits:1023 |
Because of the broken glass , debris will break into small particles uniformly and no sharp corners like universal glass cutter , which is known and widely used in automotive safety glass , interior being . Home , the broken glass after an ordinary sharp knife-like sharp corners is easy to cut child or impactor , causing personal injury. After the glass is broken into small particles or knife-like glass with ordinary glass which is the main difference between the way . But in the engineering test, motionless with this destructive testing is undoubtedly unrealistic. So how can you know whether to buy it is not tempered it? This has to be analyzed from the glass manufacturing principles , ordinary annealed glass, tempered glass is first cut to the required size , then heated to near the softening point , then obtain rapid and uniform cooling . Tempered glass surface after treatment to form a uniform compressive stress, while the internal tensile stress is formed , so that the glass can be greatly improved performance , more than three times the tensile strength of the latter , the impact force is more than five times the latter. It is this characteristic, the stress characteristics to become an important symbol of true and false identification toughened glass , tempered glass that is colored stripes can be seen through the polarizing film on the side of the glass , and in the observation of the surface layer of glass , you can see in black and white white spots. Polarizing plates or glasses can be found in the camera lens , the adjustment of light was observed when the attention , which is more easily observed . |
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