Закаленное стекло

Tempered glass As broken glass, debris will break into small particles of uniform shape and no sharp corners universal glass cutter, which is known as safety glass and is widely used in interior decoration being, and open the window on the upper floors of external. Ordinary glass broken sharp knife-like sharp corners is easy to cut or hit by a child, causing bodily injury. After the glass is broken into small particles, or knife-like which is the main difference between glass and ordinary glass way. But in the engineering inspection, testing at every turn by this destructive undoubtedly unrealistic. So how can you know whether to buy it is tempered glass? This has to be analyzed from the glass manufacturing principles, ordinary annealed glass, tempered glass is first cut into required size, then heated to near the softening point, and then the rapid and uniform cooling and be. Tempered glass surface after the formation of uniform compressive stress, while the internal tensile stress is formed, the glass can be greatly improved performance, tensile strength is more than 3 times the latter, the impact force is 5 times more than the latter. It is also this feature, the stress characteristics of glass as an important symbol of true and false identification, that is, through the polarized glass to the edge of the glass sheet to see colored stripes, and in the observation of the surface layer of glass, you can see black and white spots. Polarizing film can be found in the camera lens or glasses, and when attention to the adjustment of light source, which is more easily observed. Each glass has a 3c on the quality and safety certification mark