Vacuum heat treatment method and equipment for NdFeB rare earth permanent magnetic devices

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A vacuum heat treatment method for NdFeB rare earth permanent magnetic devices and an equipment thereof are disclosed. A rotary vacuum heat treatment equipment is for processing the NdFeB rare earth permanent magnetic devices with a vacuum heat treatment and obviously improves magnetic performance of the NdFeB rare earth permanent magnetic device, especially coercivity, which facilitates reducing a usage of heavy rare earth elements and protecting rare earth resources. Thus the vacuum heat treatment method and the equipment thereof are able to manufacture high-performance rare earth permanent magnetic devices.