What is the heating wire used for?

Iron-chromium-aluminum and nickel-chromium electric heating alloys generally have strong anti-oxidation properties,9SiCr die steel vacuum heat treatment but because the furnace contains various gases, such as air, carbon atmosphere, sulfur atmosphere, hydrogen, nitrogen atmosphere, etc. Although all kinds of electrothermal alloys have been anti-oxidized before leaving the factory, they will cause component damage to a certain extent in transportation, winding, installation and other links, and reduce the service life, in order to prolong the service life. , the customer is required to perform pre-oxidation treatment before use. The method is to heat the installed electrothermal alloy components in dry air to a temperature of 100-200 degrees lower than the maximum allowable use temperature of the alloy, and keep the temperature for 5-10 hours. The furnace can be cooled slowly.Vacuum oil quenching heat treatment The main advantages and disadvantages of iron-chromium-aluminum alloy series: Advantages: iron-chromium-aluminum electric heating alloy has a high operating temperature, the maximum operating temperature can reach 1400 degrees, (0Cr21A16Nb, 0Cr27A17Mo2, etc.), long service life, high surface load, good oxidation resistance , high resistivity, cheap and so on. Disadvantages: mainly low high temperature strength, as the use temperature increases, its plasticity increases, the components are easily deformed, and it is not easy to bend and repair.Vacuum Brazing of Ceramic Metals