Tungsten rhenium thermocoupleIt is a high-temperature resistant thermocouple. It has the advantages of good linear relationship between temperature and potential, reliable thermal stability, and low price. Paired with display instruments, it can directly measure the temperature of liquid, steam, and gas media.

It can partially replace platinum rhodium thermocouples as a high-temperature measurement tool for high-tech metallurgical industries, high-temperature electronic thermoelectric system structural engineering, space transportation vehicles, and nuclear reactors.

The relationship between the thermoelectric potential of tungsten rhenium thermocouple and temperature conforms to the ZBN05003-88 scale table, which is equivalent to the ASTME696-84 standard. It can be used in a vacuum, reducing, and inert atmosphere within the temperature range of 0-2300 ℃. Tungsten rhenium thermocouples with special protective tubes can also be used for a long time in an oxidizing atmosphere at 1600 ℃, and their price is lower than that of platinum rhodium thermocouples.

in useTungsten rhenium thermocoupleWe need to pay attention to the following points:

1. Highly oxidizable, suitable for use in inert or dry hydrogen gas, or with a dense protective tube to isolate it from oxygen before use.

2. Uneven thermoelectric potential, the positive or negative electrode of the entire coil (disk) of even wire, at 1200 ℃, its uneven thermoelectric potential shall not exceed 40-80 μ V

3. Use temperature. Its high operating temperature can reach 2800 ℃, but data dispersion occurs above 2300 ℃. Therefore, the operating temperature is around 2000 ℃

4. Cleaning with alkaline solution electrolysis, alkaline solution concentration: 15-20%, electrolysis voltage 30-100V, time 5s

5. Finished product packaging: vacuum packaging