Title:
Fe basis -- an amorphous manufacturing method and the manufacturing method of an iron core
Document Type and Number:
Japanese Patent JP6107140
Kind Code:
B2
Abstract:
A rapidly quenched Fe-based soft-magnetic alloy ribbon having wave-like undulations on a free surface, the wave-like undulations having transverse troughs arranged at substantially constant intervals in a longitudinal direction, and the troughs having an average amplitude D of 20 mm or less, is produced by a method comprising (a) keeping a transverse temperature distribution in a melt nozzle within ±15° C. to have as small a temperature distribution as possible in a melt paddle of the alloy, and (b) forming numerous fine linear scratches on a cooling roll surface by a wire brush, thereby providing a ground surface of the cooling roll with an arithmetical mean (average) roughness Ra of 0.1-1 μm and a maximum roughness depth Rmax of 0.5-10 μm.
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Inventors:
Katsuhito Yoshizawa
Motoki Ota
Naoki Ito
Motoki Ota
Naoki Ito
Application Number:
JP2012554865A
Publication Date:
April 05, 2017
Filing Date:
January 27, 2012
Export Citation:
Assignee:
Hitachi Metals Co., Ltd.
International Classes:
H01F1/153; H01F27/24; H01F41/02
Domestic Patent References:
| JP2005021950A | 2005-01-27 | |||
| JPH06344091A | 1994-12-20 | |||
| JPH08215799A | 1996-08-27 | |||
| JPH08215800A | 1996-08-27 | |||
| JPH08215801A | 1996-08-27 | |||
| JPH01170554A | 1989-07-05 | |||
| JPH07276011A | 1995-10-24 | |||
| JPH1064710A | 1998-03-06 | |||
| JP2002316243A | 2002-10-29 | |||
| JPH06292950A | 1994-10-21 | |||
| JP2002086249A | 2002-03-26 | |||
| JP2005021950A | 2005-01-27 | |||
| JPH06344091A | 1994-12-20 | |||
| JPH08215799A | 1996-08-27 | |||
| JPH08215800A | 1996-08-27 | |||
| JPH08215801A | 1996-08-27 | |||
| JPH01170554A | 1989-07-05 |
Foreign References:
| WO2006003899A1 | 2006-01-12 |
Attorney, Agent or Firm:
Takaishi Tachibana