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Method for cooling metal objects which has been subjected to a nitration or nitrocarburization in a molten salt bath, apparatus for practicing the method and correspondingly treated items
Method for cooling metal objects which has been subjected to a nitration or nitrocarburization in a molten salt bath, apparatus for practicing the method and correspondingly treated items
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机译:在熔融盐浴中冷却已进行硝化或氮碳共渗的金属物体的冷却方法,实施该方法的设备和相应处理的物品
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摘要
Before the end of the treatment of metal parts in a molten salt bath nitriding/nitrocarburizing station, a chamber, arranged so that the oxygen contained in the chamber can be discharged in order to create an inert atmosphere, is filled with a refrigerant in liquid form and with a strong capacity for volume expansion as it evaporates. All the parts treated are transferred into the chamber. The chamber is closed, and the parts are left in the chamber for a preset length of time to reach a temperature at which the salt congeals and forms a protective barrier. The parts are then removed and subjected to a rinsing operation.
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