In high-temperature furnaces for steel smelting, precision temperature control systems for chemical reaction vessels, or in aircraft enginesextremeIn the testing environment,WRNKArmored thermocouples have become the core components in the field of industrial temperature measurement due to their performance. This temperature sensor, designed based on the Seebeck effect, utilizes nickel chromium-Metal conductors such as nickel silicon alloys are encapsulated in stainless steel or nickel based alloy sheaths, achieving a revolutionary breakthrough in temperature measurement technology.

1、 Structural innovation creates core advantages

WRNKArmored thermocouple adopts a three-layer composite structure: the inner layer is nickel chromium-Nickel silicon alloy thermoelectric electrode, filled with high-density magnesium oxide insulator in the middle, and outer layer with tensile strength of800MPaof316LStainless steel sheath. This design gives it three core advantages: firstly, a diameter of only2-8mmThe slender structure can achieve5Bending radius of double diameter, in diameter10cmThe pipeline can be freely coiled and installed inside; Secondly, magnesium oxide insulator1200℃Still maintained at high temperatures1000MΩ·mThe insulation resistance effectively prevents signal interference; Thirdly, the sheath undergoes a special heat treatment process, which enhances its tensile strength compared to traditional assembled thermocouples300%, in3×10³kPa/cm²Can still work stably under pressure.

2、 Performance parameters surpass industry limits

The temperature measurement range of this series of thermocouples covers-200℃to1600℃Among themWRNK-502The model is0-1200℃The accuracy within the interval can reach±0.25%FS. Its thermal response timeT0.5(Temperature step change to)50%Reduced response time compared to traditional products60%In the temperature measurement of aircraft engine turbine blades, precise capture can be achieved0.1Temperature fluctuations within seconds. Micro model (outer diameter)Φ0.25mm）The heat capacity is only0.03J/KDuring the rapid heating process of the semiconductor wafer growth furnace, it can reflect in real-time0.1℃Temperature changes at different levels.

3、 Adaptive Evolution of Industrial Scenarios

For different working conditions,WRNKThe series has developed diversified variant products:WRNK-187Handle type model designed specifically for laboratories, equipped with304Stainless steel heat-resistant handle, can be used in800℃Direct handheld operation in the environment; Explosion proof products have passedIECExCertification, using gap explosion-proof structure, in hydrogen compressor rooms in the petrochemical industry, etc1Safe operation in explosive hazardous areas10Year; The corrosion-resistant model adoptsGH3030Nickel based alloy sheath, in12%Extended service life of traditional products in concentrated hydrochloric acid environment5Twice.

4、 Connectivity upgrade in the era of intelligence

modernWRNKThermocouples have achieved digital integration and are matched withTH-700Intelligent transmitters can convert thermoelectric potential signals into4-20mAStandard current, throughHARTProtocol implementation0.1℃Remote transmission of resolution. In Baosteel's continuous casting production line,256branchWRNKThe temperature measurement network composed of thermocouples cooperates with the edge computing module to control the temperature from±5℃upgrade to±1.5℃Reduce the crack rate of steel billets42%.

From natural gas pipelines on the Qinghai Tibet Plateau to drilling platforms in the deep sea of the South China Sea,WRNKArmored thermocouples rely on their“Capable of bending, high pressure resistance, fast response, and long lifespan”Its characteristics make it the * * product for industrial temperature measurement. with5G+With the development of industrial Internet, this traditional sensor is reborn through the transformation of the Internet of Things, and continues to guard the temperature lifeline of industrial production in the wave of intelligent manufacturing.