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Method for cooling metal parts having undergone a nitriding/nitrocarburising treatment in a molten salt bath, unit for implementing said method and the treated metal parts
Method for cooling metal parts having undergone a nitriding/nitrocarburising treatment in a molten salt bath, unit for implementing said method and the treated metal parts
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机译:在熔融盐浴中冷却经过氮化/氮碳共渗处理的金属零件的方法,实施该方法的单元和处理过的金属零件
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摘要
According to the method: prior to the end of the treatment, an enclosure (1) is filled with a liquid cooling agent having a high capacity for volume expansion upon vaporisation, said enclosure being arranged to discharge the oxygen contained therein in order to create an inert atmosphere; all of the treated parts are transferred to the enclosure (1); the enclosure (1) is closed; the parts are left in the enclosure for a pre-determined period of time in order to reach a temperature at which the salt freezes and creates a protective barrier; and the parts are removed and subjected to a rinsing operation.
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