Toughened glass doors and windows

[China Glass Net] The tempered glass is reinforced and forms a compressive stress layer on the surface of the glass, which is a general term for glass with good mechanical properties and thermal shock resistance. Glass has become the new darling of the home improvement building materials market due to its crystal clear and wind-transparent characteristics. Laminated glass and tempered glass have entered the homes with more solid and safe features. When buying glass building materials, you should pay attention to the following points to avoid buying inferior and fake tempered glass.

1. Look at the glass by polarized sunglasses with light spotlight. The surface of the tempered glass should show colored streaks, and ordinary glass is not; use the naked eye to see the glass through the side under the light, there will be blue spots on the tempered glass.

2. Look at the mark inspection certificate Since the safety glass product certification was carried out in 2003, most of the construction tempering/laminated glass manufacturers in the country have passed the product certification. The enterprise must screen or paste the CCC mark on the product body for sale, or The CCC mark is applied to the smaller outer packaging and to the accompanying documents (such as the certificate of conformity).

When purchasing a product, first check whether there is a CCC mark, and check whether the manufacturer of the product has passed the compulsory product certification (with CCC certificate and valid) according to the company information, factory number or product certification certificate number, etc. Whether the model specification is within the scope of the company's ability to pass the compulsory certification, and whether the status of the certificate is within the validity period.

3, touch the surface to find the degree of flatness of the tempered glass will be worse than ordinary glass, the hand touched the surface of the tempered glass, there will be a bumpy feeling. Observing the longer side of the tempered glass, there will be a certain degree of curvature. Plane tempered glass products in GB15763.2-2005 standard requirements bow bending should not exceed 0.3%, the wave bending should not exceed 0.2%, the two larger tempered glass close together, the curvature will be more obvious.

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