Iron-chromium-aluminum and nickel-chromium electric heating alloys generally have strong anti-oxidation properties, but because the furnace contains various gases, such as air, carbon atmosphere, sulfur atmosphere, hydrogen, Vacuum carburizing and quenching process of 15CINi4MoA steel cross shaftnitrogen 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 H13 steel mold vacuum heat treatment, 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 Carburizing Process of 20CrMnTi Steel
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