WRW-130/52/6 tungsten rhenium thermocouple

Tungsten rhenium thermocouple

Tungsten rhenium thermoelectric dipoles are prone to oxidation and are suitable for use in inert or dry hydrogen gas, or with dense protective tubes to isolate them from oxygen before use. Cannot be used in carbon containing atmospheres (such as in atmospheres containing hydrocarbons, temperatures exceeding1000Corrosion occurs at ℃. Tungsten or tungsten rhenium is prone to generate stable carbides in a carbon containing atmosphere, which can reduce its sensitivity and cause brittle fracture. In the presence of hydrogen gas, it can accelerate carbonization.
The issue of oxidation resistance of tungsten rhenium thermocouples has always been a topic of concern for scholars at home and abroad, and efforts have been made to study and solve it. Our company has adopted advanced international manufacturing technology and successfully developed a prefabricated high-temperature and high-pressure tungsten rhenium thermocouple. The temperature measurement range of this product is0～1800℃, widely used in metallurgy, coking, chemical kilns, heat treatment, glass and other industries, it has high precision, low price, stable performanceDue to its advantages, our company's tungsten rhenium thermocouples have been widely used in many unitsIts technical indicators are as follows:
1, divided degree number: 3/25，5/26
2Temperature measurement range:0～1800
3Temperature measurement accuracy:< ± 1% t；< ± 0.5% t
4Time constant:≥180 s
5Insulation resistance:>5MΩ
6Common specifications and sizes:300，500，750，1000，1100（mm）

At present, the tungsten rhenium thermocouples produced by our company are divided into three categories:
One type is the use of fine ceramic protective tubes.The specifications of ceramic tubes include: diameter ofF8，F10，F12，F14，F16, Length300~1100mmThis type of thermocouple is not limited by the working environment and atmosphere, and can be used for a long time in any atmosphere. The temperature measurement range is01800℃
The other type is pure molybdenum protective tube. The specifications for molybdenum and tungsten tubes are: diameter ofF6，F8，F10mm, Length500~700mmThis type of thermocouple can only work for a long time in a vacuum, reducing, or inert gas protected environment. Molybdenum tubes are best used in1800Long term use at temperatures below ℃, short-term use at temperatures up to2000℃；
Another type is tungsten protective tube.As for tungsten tubes, they can be2100Long term operation at ℃, but difficult to process, resulting in a very expensive price.

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