The wear-resistant thermocouple is made of special heat-resistant material and wear-resistant alloy material as the temperature measuring outer casing and wear-resistant head. The wear-resistant protective tube material selected for the measured temperature is different, and flange connection or screw connection can be used. , It can be used for long-term temperature measurement in the range of 0-1400 degrees. The components of metallurgy and chemical engineering include terminal boxes, external cores, connecting rods, screw connections or flanges. Among them, please select the material of the wear-resistant head according to the actual temperature of the production site, and select the material of the connecting rod, screw connection or flange according to whether there is corrosive medium on site. Features of wear-resistant thermocouple: According to the material of wear-resistant sleeve, it can be divided into the following three categories, each category has its own characteristics. 1. Wear-resistant superalloy: According to the characteristics of high-temperature wear environment, pure alloyed vacuum smelting specially designed by explosion-proof thermocouple is used, and it has strong high-temperature oxidation resistance. Specialized wear-resistant superalloys with very high high temperature strength, as well as products with holes open throughout the forging. It has few machining defects, high reliability, good comprehensive performance of high temperature strength and wear resistance, and high price. Cast forming. Turning plus is not required. The jacket has high hardness, strong high temperature oxidation resistance, and the magnetic flip plate level gauge has some casting defects, but it does not affect the high temperature wear resistance and sealing. Use common high-temperature wear-resistant jackets with moderate prices, and the operating temperature is 800~1200. 3. Ion implantation of tungsten carbide: Based on stainless steel, tungsten carbide particles are implanted into the surface of the casing using ion implantation technology. It has high strength, high hardness, high toughness, especially wear resistance, the thickness of the wear-resistant layer can reach 0.5~1.5mm, the outer hard and inner tough, the small diameter can reach 8, the surface quality is good, the operating temperature is 0~800, in The service life of coal generators in power plants can reach more than 2 years.
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