Title:
APPARATUS AND METHOD FOR PRODUCTION OF POWDER FOR MAGNET
Document Type and Number:
Japanese Patent JP2015030877
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus and a method for production of a powder for magnets which are for production of a powder for magnets from a quenching thin ribbon, achieve excellent cooling properties of the powder for magnets and can suppress formation of coarse particles of the powder for magnets.SOLUTION: An apparatus for production of a powder for magnets includes a melting furnace 1 storing a molten material of a magnet composition, a cooling roll 2 which carries out primary cooling of the molten material discharged from the melting furnace 1 to form a quenching thin ribbon R and a cooling plate 3 on which the quenching thin ribbon R scattered from the cooling roll 2 impinges and which carries out secondary cooling of the quenching thin ribbon R by the impingement and crushes the quenching thin ribbon R to form a powder for magnets F. The cooling plate 3 is provided with an angle adjustment part 4a to make the angle of the cooling plate 3 variable.
Inventors:
NAKAMURA MASAYUKI
Application Number:
JP2013161139A
Publication Date:
February 16, 2015
Filing Date:
August 02, 2013
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B22F9/04; B22D11/06; B22F9/08; H01F1/06; H01F41/02
Domestic Patent References:
| JP2002167611A | 2002-06-11 | |||
| JP2013000798A | 2013-01-07 | |||
| JP2012529560A | 2012-11-22 | |||
| JP2000052001A | 2000-02-22 | |||
| JP2002167611A | 2002-06-11 | |||
| JP2013000798A | 2013-01-07 | |||
| JP2012529560A | 2012-11-22 |
Foreign References:
| WO2012002531A1 | 2012-01-05 | |||
| WO2012002531A1 | 2012-01-05 |
Attorney, Agent or Firm:
Yusuke Hiraki
Mitsuo Sekiya
Takiji Ishikawa
Mitsuo Sekiya
Takiji Ishikawa