Production process and technological innovation analysis of rare earth permanent magnet materials

The production process of rare earth permanent magnet materials is a constantly evolving process. In the early production process, metallurgy was the main method. Rare earth elements were extracted by high-temperature smelting, and then magnetic materials with strong magnetic properties were prepared by chemical reduction and vacuum smelting. The process of this method is complicated, the production cost is high, and there is a risk of environmental pollution.

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