The alumina ceramic 2-hole tube has become a key component in multiple fields due to its properties such as high temperature resistance (long-term resistance to 1600℃), high hardness (Mohs hardness grade 9), and chemical inertness. Its double-hole structure is more suitable for the requirements of multi-medium separation and parallel operation.
In high-temperature environments, it is mainly used as a thermocouple protection sleeve. In scenarios such as metal smelting and glass kilns, the two holes are used to thread the two poles of the thermocouple respectively, which not only isolates molten metals and corrosive gases but also ensures the accuracy of temperature measurement. In semiconductor CVD processes, it can also have both insulation and thermal protection functions, adapting to working conditions above 1200℃.
