Characteristics of high sensitivity of tungsten-rhenium thermocouples overview - Shanghai dragon instrument electric appliance co. , LTD

Tungsten-rhenium thermocouples antioxidant problem is the scholars concern topic at home and abroad, and efforts in the discussion. Our company adopted the international advanced fabrication process, victory tungsten-rhenium thermocouples fabricated with high temperature and high pressure is developed, the product of the temperature range of 0 ~ 1800 ℃, widely used in metallurgy, coking, chemical furnace, heat treatment, glass and other industries, it has high precision, low price, stable performance, without being limited by the working environment atmosphere, etc. Is an ideal product to replace platinum rhodium thermocouple. Our company consumption of tungsten-rhenium thermocouples has been widely used in many units, arrive the performance level of similar foreign products. The technical indicators are as follows: dividing number: W - Re3/25, W - Re5/262, temperature measuring range: 0 ~ 1800 ℃, the temperature measurement accuracy: & lt; ± 1% t; < ± 0. T4, time constant: 5% or greater 180 s5, insulation resistance: & gt; 5 m Ω 6, size: 300500750100, 0110 ( mm） Rhenium tungsten steel rapid temperature measuring thermocouple is designed for measurement of molten steel, iron and other metal melt temperature and the design and manufacture. This type of thermocouple can not be restricted by working environment atmosphere in any atmosphere medium and long-term use, temperature range is 0 ~ 1800 ℃ another kind is pure molybdenum tube maintenance. Molybdenum and tungsten tube specifications are: Ф diameter 6, 8, Ф Ф 10 mm, 500 ~ 700 mm in length, the thermocouple can only in a vacuum, recovery or inert gas to maintain long-term work environment. Molybdenum tube is the best under 1800 ℃ temperature for long-term use, short-term use temperature to 2000 ℃; Is kind of tungsten tube maintenance. As for the tungsten tube can long-term work under 2100 ℃, but it is hard to processing and its price is very expensive.