The reason why tempered glass is called safety glass is widely used in high-rise building doors and windows, glass curtain walls, indoor partition glass, daylighting ceilings, sightseeing elevator passages, furniture, glass guardrails, and windows that open to the outside of high floors. This is because tempered glass is in After being broken, the fragments will not become sharp corners, but will be broken into uniform small particles, reducing the possible harm to the human body.

After ordinary glass is broken, the sharp tip of the knife is easy to cut children and the striker, which directly harms the human body. Whether tempered glass and ordinary glass are sharp objects after being broken, this is the main difference between tempered glass and ordinary glass. After the toughened glass is broken, the fragments will be broken into uniform small particles and there is no common glass knife-shaped sharp corner, so it is called safety glass and is widely used in automobiles, interior decoration, and high-floor windows. Generally, the sharp knife-shaped corners of ordinary glass after breaking can easily cut children or hit persons, causing personal injury. Whether the glass breaks into small particles or a knife shape is the main difference between tempered glass and ordinary glass. But in engineering inspections, it is undoubtedly unrealistic to use such destructive inspections at all times.

So how do customers know if the glass they buy is tempered glass?

Tempered glass is made by cutting ordinary annealed glass to the required size, then heating it to a near softening point, and then cooling it quickly and uniformly. After the glass is tempered, uniform compressive stress is formed on the surface, and tensile stress is formed inside the glass. This will greatly improve the performance of the glass after making it, and not only the tensile strength, but also ordinary glass Three times as much as that of glass, and it also improves the impact resistance, which is more than 5 times that of ordinary glass.

It is precisely because of this feature that the stress characteristics have become an important basis for judging the authenticity of tempered glass. Tempered glass can see colored stripes throughout the glass through the polarizer. If you observe on the surface of the glass, you can see black and white. The spots between the phases are invisible to the naked eye, but can be seen in the lens of the camera. When observing, you must pay attention to the adjustment of the light source, so that it will be easier to observe.