Cement plant wear-resistant thermocouple protection tube what material with the long time, can use how long commonly?

Wear-resistant thermocouple in some special occasions, such as chemical, smelting, power plants, cement plants, etc. , using ordinary thermocouple, heat resistance is easy to damage. On these occasions, therefore, it must adopt wear-resisting thermocouple ( Resistance) 。 The thermocouple ( Resistance) Especially for export, fluidized bed, the coal mill, secondary air temperature coal and cement industry.

cement wear-resistant thermocouple USES si3n4 bonded sic technology, has a good thermal conductivity, reting resistance and abrasion resistance, resistance to erosion, no pollution, the highest use of high temperature of 1450 ℃, widely used in liquid aluminum, copper, zinc liquid and other non-ferrous metal liquid temperature test of heat protection. Using 720 - time 18000 hours.

silicon nitride ceramic material is a kind of important structure. It is a kind of super hard material, itself has the lubrication, and wear resistance, as the atomic crystal; When high temperature oxidation resistance. And it also can resist cold and hot shock, in air heated to above 1000 ℃, a sharp cooling heating sharply again, also won't fracture. It is because of silicon nitride ceramics with such excellent properties, people often use it to manufacture bearings, steam turbine blades, mechanical seal, mechanical components, such as permanent mould. If use high temperature resistant and not easily heat transfer of silicon nitride ceramic to make engine parts of heating surface, can not only improve the quality of diesel engine, save fuel, but also can improve the thermal efficiency. In our country and the United States, Japan and other countries have developed this kind of diesel engine.