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Address: Xiongyi, Jinhe Road, Jinhu County, Jiangsu Province
Lunan
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Industry Information
Features of Dongxiang Tungsten Rhenium Thermocouple
2011-7-14 17:20:53

The structure of high-temperature tungsten-rhenium thermocouple produced by Jinhu Dongxiang Instrument Co., Ltd. is a single-layer protective tube. The protective tube uses thick-walled molybdenum tube as the protective tube.

Molybdenum protection tube has excellent mechanical properties at high temperature, melting point is 2610 ℃, good performance in vacuum, reduction and inert gas, and has excellent resistance to thermal shock. The disadvantage is that it is not resistant to oxidation. The production requirements are relatively strict, the materials selected must be reasonable, and sufficient safety factors must be maintained for temperature resistance. High-temperature tungsten-rhenium thermocouples are generally used intermittently, and the thermocouples are easily damaged. During installation and use, comprehensive consideration must be given to them. The uncertainties prevent damage to the protective tube.

The temperature measurement range of high temperature tungsten rhenium thermocouple is 0 ~ 2000 ℃, the actual real high temperature range is 1650 ~ 2000 ℃. According to the difference of the heating element of industrial furnace, there are clear requirements for the protection tube of high temperature tungsten rhenium thermocouple , such as The industrial furnace is a molybdenum or tungsten heating element. The high-temperature tungsten-rhenium thermocouple made of Ø8 thick-walled molybdenum tube can be used in the temperature range of 0 to 2000 ° C. If the heating element is graphite, a Ø6 tungsten protection tube is required. The protection tube of high temperature tungsten rhenium thermocouple must be well supported during installation.