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Tempered glass classification:
Jun 02, 2017

One by craft

1. Chemical tempered glass is by changing the chemical composition of the glass surface to improve the strength of the glass, the general application of ion exchange method for steel. The Li + ion exchange layer is formed on the surface by Li + ion exchange layer, and the Li + ion exchange layer is formed on the surface of the Li + ion exchange layer by adding the Na + or K + ions of the glass surface layer to the Li + ions in the lithium (Li +) salt in the molten state The expansion coefficient is less than Na +, K + ions, which in the cooling process caused by the outer shrinkage of small inner shrinkage larger, when cooled to room temperature, the glass will be in the inner layer of tension, the outer pressure state, its effect Similar to physical tempered glass.

2. Physical tempered glass, also known as quenched tempered glass. It will be ordinary flat glass heated in the heating furnace close to the softening temperature of the glass (600 ℃), through its own deformation to eliminate the internal stress, and then remove the glass from the furnace, and then the long nozzle to high-pressure cold air blowing glass Both sides, so that it quickly and evenly cooled to room temperature, you can produce tempered glass. The glass is in the internal tension, the external stress state of stress, once the local damage occurs, there will be stress release, the glass was broken into numerous pieces, these small pieces without sharp edges and corners, not easy to hurt.

Two by shape

1. Tempered glass according to its appearance is divided into flat steel and bending steel.

2. Tempered glass according to its flatness is divided into: excellent products, qualified products. Exquisite goods tempered glass for automotive windshields; qualified products for architectural decoration.

3. Tempered glass is divided into flat tempered glass and curved tempered glass. General flat tempered glass thickness of 3.4,4.5,5,5.5,6,7.6., 8,9.2,11,12,15,19 mm twelve kinds; curved glass thickness of 3.4,4.5,5.5,7.6,9.2,11 , 15,19 mm eight, after the specific processing of the thickness or look at the manufacturers of equipment and technology. But the curved surface (ie, curved steel) tempered glass has a maximum curvature limit for each thickness. That is usually called the RR for the radius.

Three by the degree of steel

1. Tempered glass: steel degree = 2 ~ 4N / cm, glass curtain wall tempered glass surface stress α ≥ 95Mpa;

2. Super fortified glass: steel degree> 4N / cm

3. Semi-tempered glass: steel degree = 2N / cm, glass curtain wall semi-tempered glass surface stress 24Mpa ≤ α ≤ 69Mpa;