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Title:
ELECTROMAGNETIC STEEL SHEET LAMINATED CORE WHICH HAS GOOD THERMAL CONDUCTIVITY, AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2011023523
Kind Code:
A
Abstract:

To improve thermal conductivity in the lamination direction of a core (iron core) used for an energy converting electric apparatus such as a motor, generator, and transformer.

Electromagnetic steel sheets used for a core are stacked by bonding across the entire surface through an adhesive layer of ≥0.2 μm and ≤15 μm which is an anaerobic adhesive, with no void generated between the steel sheets. The resulting laminated core has improved thermal conductivity in the lamination direction of the core, with high power.


Inventors:
YAMAZAKI SHUICHI
FUJII HIROYASU
TAKEDA KAZUTOSHI
Application Number:
JP2009166903A
Publication Date:
February 03, 2011
Filing Date:
July 15, 2009
Export Citation:
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Assignee:
NIPPON STEEL CORP
International Classes:
H01F27/24; H01F1/16; H01F27/245; H01F41/02; H02K1/18
Domestic Patent References:
JP2007044879A2007-02-22
JP2004088970A2004-03-18
JPS58116032A1983-07-11
JPH10256103A1998-09-25
JP2008159926A2008-07-10
JPH04145610A1992-05-19
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Nakamura Asayuki
Nagasaka Tomoyasu