Will tempered glass used by glass manufacturers in Dongguan explode due to overheating?
Release time:
Dec 21,2024
Tempered glass does indeed have a risk of spontaneous breakage under overheating conditions, but spontaneous breakage is not caused solely by overheating; it is the result of multiple factors acting together. Below is a detailed analysis of the issue of spontaneous breakage in tempered glass due to overheating:
1. Causes of spontaneous breakage in tempered glass
Uneven internal stress distribution:
During the production process of tempered glass, improper processing or raw material issues may lead to uneven internal stress distribution within the glass. This stress can trigger spontaneous breakage when the glass is subjected to external stimuli (such as temperature changes).
Impurities such as nickel sulfide:
Tempered glass may contain impurities such as nickel sulfide. These impurities can disrupt the internal stress balance when they expand due to heat, leading to spontaneous breakage.
Improper installation:
If tempered glass does not leave enough expansion space during installation, or if the force points and edges are improperly handled, it may also pose a risk for spontaneous breakage.
2. Effects of overheating on tempered glass
Temperature increase leads to stress changes:
In high-temperature environments, the internal stress state of tempered glass will change. When the temperature rises to a certain level, the strength of the compression layer will rapidly decrease; if there is an imbalance between the tensile stress layers on the inner and outer surfaces, it can lead to spontaneous breakage.
Spontaneous breakage temperature:
The spontaneous breakage temperature of tempered glass is not a fixed value, but it is generally believed that in high-temperature environments (such as close to or exceeding 250°C), the risk of spontaneous breakage increases. However, the actual temperature for spontaneous breakage may vary due to factors such as glass quality and manufacturing processes.
3. Measures to prevent spontaneous breakage in tempered glass
Choose high-quality glass:
When purchasing tempered glass, one should select reliable quality products with advanced manufacturing processes.
Proper installation:
When installing tempered glass, ensure that there is enough expansion space left and avoid risks of spontaneous breakage caused by improper handling at force points or edges.
Avoid external impacts:
During use, avoid strong impacts from external objects on tempered glass to reduce the risk of spontaneous breakage.
Temperature control:
(In high-temperature environments,) try to avoid prolonged exposure of tempered glass to high temperatures to reduce the possibility of spontaneous breakage. At the same time, precautions should also be taken against low-temperature spontaneous breakage issues in cold regions.
(In summary,) there is indeed a risk of spontaneous breakage in tempered glass under overheating conditions; however, this risk is not solely caused by overheating but results from multiple factors acting together. Therefore, when using and installing tempered glass, one should fully consider its characteristics and application scenarios and take necessary preventive measures to reduce the risk of spontaneous breakage.
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China Guangdong Haibo Special Glass Technology Co., Ltd. Unified Social Credit Code: 91440101MA5AT33G12 Contact Numbers: General Manager Cao, 13178822749; General Manager Wei, 13533794186.