Selection of tempered glass characteristics of sta

2022-07-22
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Toughened glass (also known as strengthened glass) is a general term for glass products that have been strengthened and have good mechanical properties and heat and vibration resistance. Tempered glass is divided into flat tempered glass and curved tempered glass, which are used for glass doors and windows, partition walls and glass curtain walls of buildings, as well as doors and windows of automobiles and ships. Next, the editor will introduce the selection criteria of tempered glass and the characteristics of tempered glass

tempered glass (also known as strengthened glass) is a general term for glass products that have been strengthened and have good mechanical properties and heat and vibration resistance. Tempered glass is divided into flat tempered glass and curved tempered glass, which are used for glass doors and windows, partition walls and glass curtain walls of buildings, as well as doors and windows of automobiles and ships. Next, the editor will introduce the selection criteria of tempered glass and the characteristics of tempered glass

selection standard of tempered glass

1. Bending degree

the bending degree of flat tempered glass should not exceed 0.5% in bow shape and 0.3% in waveform

2. Impact resistance

take 6 tempered glass samples for test. If the number of samples damaged is not more than 1, it is qualified, and if the number of samples damaged is more than or equal to 3, it is unqualified. When the number of damaged pieces is 2, another 6 pieces shall be taken for test, and all 6 pieces must not be damaged as qualified

3. Fragment status

take 4 tempered glass samples for test, and each sample is within 50mm× The number of fragments in the 50mm area must exceed 40, and a small number of long strip fragments are allowed, whose length does not exceed 75mm. Its end is not knife shaped, and the angle formed between the long strip fragments extending to the edge of the glass and the edge is not greater than 45°

4. Impact performance of shotgun bag

take 4 flat tempered glass samples for test, which must comply with any of the following (1) or (2)

(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 dropping height of the shotgun bag is 1200mm, the sample will not be damaged

5. Bending measurement

take plane tempered glass products as samples. Place the sample vertically, and place a ruler horizontally close to the surface of the sample for measurement. Bow is expressed as a percentage of the ratio of the height of the arc to the length of the string. The waveform is expressed as the percentage of the ratio of the height from trough to peak to the distance from peak to peak or trough to trough

characteristics of tempered glass

1. Safety

when the glass is damaged by external forces, the fragments will form small obtuse particles similar to honeycomb, which is not easy to cause harm to human body

2. High strength

the impact strength of tempered glass with the same thickness is 3 ~ 5 times that of ordinary glass, and the bending strength is 3 ~ 5 times that of ordinary glass

3, thermal stability

tempered glass has good thermal stability, can withstand the temperature difference is 3 times that of ordinary glass, and can withstand the temperature difference change of 200 ℃

editor's summary: here is the selection standard of tempered glass and the characteristics of tempered glass. I hope it will be helpful to you. If you want to know more about it, you can pay attention to the information

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