Glass does not break solely because of severely high or low temperatures.However, due to poor control of the type, thickness, temperature change rate and internal stress of the glass, it may explode. Here are some situations that may cause glass to explode at high temperatures:
1. Temperature changes too fast: When the surface temperature of the glass rises or drops rapidly, stress will be generated inside the glass due to the characteristics of thermal expansion and contraction. If this stress exceeds the tolerance limit of the glass, it may cause the glass to break or explode. For example, pouring hot water suddenly into an ice-cold glass or placing a hot glass on an ice-cold surface may cause this problem.
2. Internal stress concentration: Glass may generate internal stress during the manufacturing process, especially in tempered glass. Tempered glass enhances its strength by rapidly cooling the surface, but if the internal stress is unevenly distributed or there are tiny defects (such as stones, sand particles, bubbles, etc.), these defects may become stress concentration points at high temperatures, causing the glass to explode.
3. The material is not resistant to high temperatures: Different types of glass have different tolerances to temperature. For example, ordinary soda-lime glass has poor temperature resistance and can only withstand a temperature difference of about 50°C, while tempered glass and high borosilicate glass can withstand higher temperature differences. If a glass material that is not resistant to high temperatures is used, it is easy to break in a high temperature environment.
To reduce the risk of glass exploding at high temperatures, the following measures can be taken:
Choose high-temperature resistant glass materials, such as tempered glass or high borosilicate glass.
Avoid drastic temperature changes, such as avoiding placing hot glasses directly on cold surfaces.
Check glass products regularly to ensure that there are no obvious damage or defects.
When using glass products, follow the manufacturer's instructions for use and avoid exceeding their recommended range of use.
In short, although glass may explode at high temperatures, this risk can be greatly reduced by choosing the right materials and using them correctly.
Can glass break through heat?
Apr 18, 2025
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