Why does tempered glass explode?
Release time:
Jul 11,2024
Glass in the processing process may be due to improper operation of scratches, fry, deep explosion edge and other defects, these defects are easy to cause stress concentration, resulting in tempered glass self-explosion.
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The reasons for the self-explosion of tempered glass can be summarized as follows:
Internal impurities and defects:
There may be bubbles, stones (such as nickel sulfide, etc.) and other impurities inside the glass. In particular, nickel sulfide impurities may cause self-explosion when their diameter is between 0.04 and 0.65mm and their average particle size is 0.2mm.
Glass in the processing process may be due to improper operation of scratches, fry, deep explosion edge and other defects, these defects are easy to cause stress concentration, resulting in tempered glass self-explosion.
Uneven stress distribution:
When the glass is heated or cooled, the temperature gradient generated along the thickness of the glass is uneven and asymmetric, which may lead to uneven stress distribution and make the tempered products have a tendency to explode.
Poor quality and uneven thickness of the original glass (such as embossed glass, bent tempered glass, etc.) may also lead to uneven stress distribution, which in turn leads to self-explosion.
External force influence:
During installation, if the gap between the tempered glass and the frame is small or in direct close contact, due to the difference in expansion coefficients of different materials, when the temperature changes, it is easy to produce extrusion deformation, which will induce the fragmentation of the tempered glass.
Weather Factors:
Although tempered glass is a kind of special glass with high hardness and high toughness, it also has the upper limit of bearing capacity. When encountering strong natural disasters such as strong typhoons, it may cause the broken glass.
Damage during installation and transportation:
In the process of transportation, installation and maintenance, if you accidentally cause scratches, frying and other damage on the glass surface, these factors may cause the glass to break under certain circumstances.
According to industry experience, glass has a self-explosion rate of about 3%. Therefore, when selecting and using tempered glass, the above factors should be fully considered, and corresponding measures should be taken to reduce the risk of self-explosion. For example, choose glass products with reliable quality, ensure that the installation process is standardized, and avoid use in bad weather.
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