Title:
A recycling method of a rare earth permanent magnet, and a manufacturing method of recycling materials
Document Type and Number:
Japanese Patent JP5971104
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a recycling method of rare-earth magnet capable of regenerating a high quality magnet material efficiently, by performing composition analysis of used magnets in the form of a mass having a certain size, as they are, without crushing and grinding the used magnets.SOLUTION: A recycling method of rare-earth magnet includes a magnetic force inspection step S1 for inspecting magnetic force, a demagnetization step S2 for demagnetizing a magnet determined that it has a magnetic force in the magnetic force inspection step, a composition analysis step S3 for analyzing the composition of a magnet determined that it does not have a magnetic force in the magnetic force inspection step, and a selection step S4 for selecting a magnet based on the analysis results in the composition analysis step.
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Inventors:
Noriko Hirano
Application Number:
JP2012271502A
Publication Date:
August 17, 2016
Filing Date:
December 12, 2012
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H01F41/00; C22B7/00; C22B59/00
Domestic Patent References:
| JP2013060643A | ||||
| JP2010199110A | ||||
| JP2005268538A | ||||
| JP2001040425A | ||||
| JP5033074A |
Attorney, Agent or Firm:
Tadahiko Inaba
Kanako Murakami
Shigeaki Matsui
Kuratani Yasutaka
Kanako Murakami
Shigeaki Matsui
Kuratani Yasutaka