How to Check the Quality of Building and Interior Tempered Glass

Tempered glass is a kind of prestressed glass. In order to increase the strength of the glass, chemical or physical methods are usually used.

Compressive stress is formed on the glass surface. When the glass is subjected to external force, the surface stress is first offset, thereby improving the bearing capacity and enhancing the wind pressure resistance, cold and heat resistance, and impact resistance of the glass itself.

The highest temperature resistance of tempered glass is 380 degrees.

Toughened glass selection Standard

1. Glass Curvature

The curvature of flat toughened glass should not exceed 0.5% when it is bowed, and it should not exceed 0.3% when it is corrugated.

2. Impact resistance

Take 6 specimens of tempered glass for the test, and the number of specimen failures is less than 1 as qualified, and more than or equal to 3 as unqualified.

When the number of damages is 2 pieces, another 6 pieces shall be taken for the test, and all 6 pieces must not be damaged as qualified.

3. Fragmentation status

Take 4 specimens of tempered glass for the test.

Each specimen must have more than 40 fragments in the area of ​​50mm×50mm, and a small number of elongated fragments are allowed, the length of which does not exceed 75mm, and the end is not knife-shaped.

The angle formed by the elongated fragments extends to the edge of the glass and the edge is not more than 45°.

4. The impact performance of the shot bag

(1) When the glass is broken, the total mass of the maximum 10 pieces of each sample shall not exceed the mass equivalent to the 65m2 area of ​​the sample.

(2) When the drop height of the loose bullet bag is 1200mm, the sample will not be damaged.

5. Curvature measurement

Take flat toughened glass products as samples.

The sample is placed vertically, and the ruler is placed horizontally against the surface of the sample for measurement.

The bow is expressed as a percentage of the ratio of the height of the arc to the length of the string.

In the waveform, it is expressed as a percentage of the ratio of the height from the trough to the crest to the distance from the crest to the crest or the distance from the trough to the trough.

As a tempered glass manufacturer, our tempered glass will pass these tests, then ship out the cargo.

Eliterglass is your turnkey China tempered glass supplier.

Learn more products: Ultra Clear Tempered Glass, Curved Glass, Shower Door Glass, Tabletop Glass