With the rapid improvement of modern technology, the glass industry has become increasingly strong, creating various uniquely functional glasses that have made the glass industry constantly prosperous, such as bulletproof glass, photoelectric glass, vacuum glass, tempered glass, etc., which are widely used in people's daily lives. Tempered glass is a product made by processing ordinary glass, which not only maintains the general function of the glass, but also enhances its impact resistance and tensile strength, making it more versatile than ordinary glass. However, because tempered glass looks very similar to ordinary glass, it is difficult to distinguish it without careful differentiation. Next, let me introduce the differences between the two.

1、 The difference between regular glass and tempered glass

General glass: It has a surface that is resistant to pressure and impact, and is easy to break. The sharp knife shaped corners after breaking can cause human injury.

Tempered glass: also known as safety glass, is made by the principle of material tempering. When the glass is heated to a near softened state, it is instantly cooled, creating a tempered stress layer inside the glass, adding the ability to resist pressure and impact on the surface of the glass. After crushing, the particles are as small as corn kernels, and there is basically no damage to the human body. Generally, tempered glass is not very straight and has some twists and turns. Due to the fact that tempered glass breaks down into uniform small particles without any sharp edges throughout the glass blade, it is called safety glass and widely used in cars and interior decoration.

So how to distinguish whether it is tempered glass?

This needs to be analyzed from the manufacturing principle of tempered glass. Tempered glass is made by cutting ordinary glass into the required size, heating it to a near softening point, and then rapidly and uniformly cooling it. After tempered glass treatment, the surface forms uniform compressive stress, while the interior forms tensile stress, greatly improving the functionality of the glass. It is precisely because tempered glass has this characteristic that it has become an important symbol for distinguishing between genuine and fake tempered glass. That is, tempered glass can see colored stripes at the edges of the glass through polarizing film, and black and white mottled patterns can be observed on the surface layer of the glass. Polarized light plates can be found in camera lenses or glasses. When investigating, pay attention to adjusting the light source, which makes it easier to determine whether it is tempered glass.

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