H - Electricity – 01 – F
Patent
H - Electricity
01
F
148/9
H01F 41/02 (2006.01) C22C 33/04 (2006.01) C30B 13/00 (2006.01) H01F 1/04 (2006.01) H01L 41/20 (2006.01)
Patent
CA 1260366
ABSTRACT OF THE DISCLOSURE Rods of magnetrostructive alloys of iron with rare earth elements are formed by flowing a body of rare earth-iron alloy in a crucible enclosed in a chamber maintained under an inert gas atmosphere, forcing such molten rare- earth-iron alloy into a hollow mold tube of refractory material positioned with its lower end portion within the molten body by means of a pressure differential between the chamber and mold tube and maintaining a portion of the molten alloy in the crucible extending to a level above the lower end of the mold tube so that solid particles of higher melting impurities present in the alloy collect at the surface of the molten body and remain within the crucible as the rod is formed in the mold tube.
520017
Borden Ladner Gervais Llp
Iowa State University Research Foundation Inc.
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