W-Re 3 - W-Re 25 thermocouple 
 Product Code: 002010091503 
 Model: WRe 3/WRe25 
 Product Note: Thermocouple order by agreement 
 Category: → W-Re thermocouple thermocouple 

 First, an overview 
 W-Re 3 - tungsten rhenium thermocouples are high temperature thermocouple 25. It has a linear relationship between the temperature of a potential good thermal stability, reliable, low cost advantages. Complete with display instrument for direct measurement of liquid, steam and gases such as temperature. It can partially replace platinum-rhodium thermocouple as a high-tech metallurgical industry, high-temperature thermoelectric system structure of electronic engineering and space vehicles, nuclear reactors, ultra-high-temperature measurement tool. 
 Tungsten-rhenium thermocouples for temperature thermoelectric power relations ZBN05003-88 indexing table, equivalent ASTME696-84 standard. In a vacuum, reduction, inert atmosphere, can be 0 ~ 2300 ℃ range. The use of special protective tube tungsten rhenium can even oxidation at 1600 ℃ under an atmosphere of long-term use, its low price compared with platinum-rhodium thermocouple. 
 Second, the tungsten rhenium thermocouples main technical parameters: 
 Temperature (℃) Tolerance 
 1300 ~ 1700 0.5% t 
 0 ~ 2300 1% t 
 Third, the insulation resistance at room temperature: W-Re thermocouples in the ambient air temperature of 20 ± 15 ℃, relative humidity less than 85%, hot electrode and the insulation resistance between the outer protection tube should be greater than 100MΩ.m. 
 Fourth, the thermal response time: thermal response time of 0.5 ≤ 180S 
 Five, WRe 3/WRe25 thermocouple protection tube outside 
 (L) silicon carbide tube (Sic) can be oxidized in the atmosphere below 1600 ℃ using 
 (2) of molybdenum disilicide tube (Mosi2) at 1600 ℃ under air and some corrosive atmospheres (supply agreement) 
 (3) molybdenum tube (Mo) at 2300 C in vacuum using the following (supply agreement) 
 (4) tantalum tube (Ta) at 2300C using the following vacuum (supply agreement) 
 VI, No. W-Re thermocouple indexing has WRe3-WRe25, WRe5-WRe20, WRe5-WRe26, W-WRe26 temperature of a thermoelectric power indexing table