Alumina tubes, with a purity of over 99.6%, are capable of withstanding extremely high temperatures, up to 1800°C.
These tubes are used in various high-temperature applications due to their high-quality characteristics.
However, they require careful handling due to their poor thermal shock resistance.
The continuous working temperature for these tubes is typically around 1600°C, which is lower than their maximum working temperature, to ensure longevity and prevent breakage.
4 Key Points Explained:
High Purity and Temperature Resistance:
Alumina tubes are made with over 99.6% alumina content, providing high purity and the ability to withstand high temperatures.
The maximum working temperature for these tubes is 1800°C, indicating their suitability for high-temperature applications.
Continuous Working Temperature:
Despite their high maximum temperature tolerance, the continuous working temperature for alumina tubes is 1600°C.
This lower continuous working temperature is recommended to prevent thermal shock and ensure the longevity of the tubes.
Thermal Shock Resistance:
Alumina tubes, while highly resistant to high temperatures, have poor thermal shock resistance.
This characteristic necessitates careful handling and operation to avoid sudden temperature changes that could lead to breakage.
Applications:
Alumina tubes are used in a variety of high-temperature applications including turbine casting supports, surgical devices, wafer processing components, and more.
Their use in vacuum tube electric furnaces and other high-temperature environments highlights their durability and effectiveness in such settings.
Longevity and Durability:
Despite their susceptibility to thermal shock, alumina tubes are known for their long service life when used within their recommended temperature ranges.
The service life of these tubes can be up to 60 times longer when operated under optimal conditions, as reported by customers.
In summary, while alumina tubes are highly effective in high-temperature environments, their operation must be managed carefully to mitigate risks associated with thermal shock.
Understanding and adhering to their continuous working temperature of 1600°C is crucial for maintaining their integrity and prolonging their service life.
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