Title:
METHOD FOR RECYCLING SLURRY, METHOD FOR MANUFACTURING RARE-EARTH BASED SINTERED MAGNET, AND APPARATUS FOR RECYCLING SLURRY
Document Type and Number:
WIPO Patent Application WO/2011/125578
Kind Code:
A1
Abstract:
Disclosed is a method for manufacturing rare-earth based sintered magnet which can eliminate the step of reclaiming a molded defective of rare-earth based sintered magnet resulting from wet molding thereof and which is preferred as a method of preparing a high-performance rare-earth based sintered magnet that has a reduced oxygen content. Also disclosed is a method and apparatus for recycling slurry which are employed for the manufacturing method. The method for recycling slurry includes a step of disintegrating and crushing a molded piece in mineral oil and/or synthetic oil to provide the resultant as recycled slurry, the molded piece having been produced in a magnetic field by wet-molding a slurry made of alloy powder for rare-earth based sintered magnet and mineral oil and/or synthetic oil.
Inventors:
MOCHIZUKI MITSUAKI (JP)
Application Number:
PCT/JP2011/057540
Publication Date:
October 13, 2011
Filing Date:
March 28, 2011
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
MOCHIZUKI MITSUAKI (JP)
MOCHIZUKI MITSUAKI (JP)
International Classes:
H01F41/00; B22F3/00; B22F8/00; B22F9/00; C22C33/02; C22C38/00; H01F1/08; H01F41/02
Foreign References:
| JP2004207578A | 2004-07-22 | |||
| JPH10125521A | 1998-05-15 | |||
| JPH1097937A | 1998-04-14 | |||
| JP2003051418A | 2003-02-21 |
Other References:
See also references of EP 2555211A4
Attorney, Agent or Firm:
TSUJITA Takashi et al. (JP)
Yukifumi Tsujita (JP)
Yukifumi Tsujita (JP)
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Claims: