Identification method of whether the glass is tempered
Because the strength of tempered glass is relatively high, coupled with broken, the fragments will be broken into uniform small particles and there is no common glass knife-like sharp corners, so it is called safety glass and is widely used in indoor and outdoor. Tempered glass is the ordinary annealed glass first cut into the required size, and then heated to close to the softening point, and then rapid and uniform cooling. After tempering treatment, the surface of the glass forms uniform compressive stress, while the internal tensile stress is formed, so that the performance of the glass can be greatly improved, the tensile strength is more than 3 times of the latter, and the impact resistance is more than 5 times of the latter. It is also this feature, the stress characteristics of the identification of true and false tempered glass is an important symbol, that is, tempered glass can be seen through the polarized light plate at the edge of the glass to see color stripes, and in the glass surface observation, you can see the black and white spots. Polarizers can be found in camera lenses or glasses. Pay attention to the adjustment of the light source when observing, so it is easier to observe.
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