APPARATUS FOR MANUFACTURING ALLOY POWDER FOR PERMANENT MAGNET AND METHOD THEREFOR

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PROBLEM TO BE SOLVED : To balance the efficient charging of an alloy slug with the delivery of an alloy powder, by making the slug sufficiently occlude hydrogen and by sufficiently automating an apparatus. SOLUTION : An apparatus for manufacturing the alloy powder for a permanent magnet pulverizes the alloy slug of a raw material containing a rare earth element, a metallic element and boron into the alloy powder. The apparatus has a hydrogen-occluding portion 11 for making an alloy slug occlude hydrogen. The hydrogen-occluding portion 11 has a gash-shaped or fin-shaped helical part 18 on its inner surface, and a rolling mechanism for rotating itself in a normal direction and a reverse direction. The apparatus rotates the hydrogen-occluding portion 11 provided with the helical part in a direction for the alloy slug of the raw material to stay, to make the alloy slug occlude hydrogen, and then rotates it in the reverse direction to move the alloy powder to the heat-treating portion 12 from the hydrogen-occluding portion 11.