How to choose the thickness of tempered glass?

2021-06-02 16:52:21

When installing toughened glass, there are certain requirements for the thickness, and when used in different places, the requirements for its thickness are also different. Tempered glass is relatively good in quality and stable in performance, so it is widely used in residences, restaurants, hotels, office buildings and other places. It can also be applied to trains, automobiles, ships, etc.

When choosing toughened glass, the thickness is generally determined by the area and size of the door and window glass. In order to ensure the firmness of the glass, thicker glass should be selected when choosing. In addition, for high-rise buildings, the selected thickness is a little thicker than multi-story. Especially in coastal areas, because there are often typhoons and sandstorms.

In addition to tempered glass, there are also many semi-tempered glass on the market. What is the difference between the two? The article will give specific answers. The opposite of tempered glass and semi-tempered glass:

1. In terms of safety:
When the toughened glass is broken, the glass fragments are in the form of small particles with obtuse angles. When a person touches the broken glass, it will not cause too much damage. When the semi-tempered glass is broken, the cracks of the whole piece of glass continue to expand from the stress point to the edge, and are in a radioactive state. When people touch it, it will cause great damage.

2. In terms of strength:
The strength of tempered glass is at least 2 times that of semi-tempered glass.

3. Thermal stability:
The thermal stability of semi-tempered glass is twice that of the original tempered glass, but the thermal stability of tempered glass is higher than that of semi-tempered glass.

4. Reworkability:
Both semi-tempered glass and tempered glass cannot be reprocessed and cut.

Under normal circumstances, toughened glass has strong impact resistance, but accidents may occur. So what are the reasons for the unqualified impact resistance of toughened glass?

1) The heating and cooling process does not meet the requirements, because the heating temperature is too low, the heating time is too short, and the air volume of the cooling air pressure is small and the time is short. Sex becomes worse.

2) Because the glass surface is scratched, the surface stress is relatively low during the remanufacturing process, which leads to a decrease in strength and impact resistance.

3) Because the edge of the glass was not properly treated before the tempering treatment, there were some small cracks, which caused it to break due to impact and cannot be released in time after it was made.

4) Because the temperature of the glass surface is different during the heating or cooling process, the stress formed on the surface is uneven and its strength is reduced.