| 简介 |
A method of powdering NdFeB rare earth permanent magnetic alloy includes : adding mixed powder after a hydrogen pulverization into a grinder; grinding the powder with a high-speed gas flow ejected by a nozzle; sending the ground powder into a centrifugal sorting wheel with the gas flow; collecting, by a cyclone collector, fine power selected by the sorting wheel; collecting, by a post cyclone collector, the fine powder discharged out with the gas flow from a gas discharging pipe of the cyclone collector; introducing, by a depositing device, the fine powder collected by the cyclone collector and by the post cyclone collector into a depositing tank; compressing, by a compressor, and cooling, by a cooler, the gas discharged by the post cyclone collector; and then sending the gas into a gas inlet of the nozzle for recycling. A device thereof is also provided. |
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