Title:
PROCESS FOR PRODUCING NON-ORIENTED ELECTROMAGNETIC STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2017/086036
Kind Code:
A1
Abstract:
A process for producing a non-oriented electromagnetic steel sheet which comprises hot-rolling a steel slab that contains, in terms of mass%, up to 0.0050% C, up to 4.0% Si, 0.03-3.0% Mn, up to 0.1% P, up to 0.0010% Se, up to 3.0% Al, up to 3.0% Ni, up to 5.0% Cr, up to 0.003% Ti, and up to 0.003% Nb, optionally annealing the hot-rolled plate, and subjecting the hot-rolled plate to cold-rolling and finish annealing, wherein heating in the finish annealing is conducted in two stages so that the work is heated by induction heating and then by radiation heating and that in the induction heating, heating between 600°C and 740°C is conducted at an average heating rate of 50 °C/sec or greater, thereby making it possible to stably achieve a high magnetic flux density.
Inventors:
ZAIZEN YOSHIAKI (JP)
OKUBO TOMOYUKI (JP)
ODA YOSHIHIKO (JP)
OKUBO TOMOYUKI (JP)
ODA YOSHIHIKO (JP)
Application Number:
PCT/JP2016/079252
Publication Date:
May 26, 2017
Filing Date:
October 03, 2016
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D8/12; C22C38/00
Domestic Patent References:
| WO2014129034A1 | 2014-08-28 |
Foreign References:
| JP2012132070A | 2012-07-12 | |||
| JPS5794524A | 1982-06-12 | |||
| JP2014173099A | 2014-09-22 | |||
| JP2012046806A | 2012-03-08 | |||
| CN103451399A | 2013-12-18 | |||
| JP2001316729A | 2001-11-16 | |||
| JPH01290716A | 1989-11-22 | |||
| JPH0211728A | 1990-01-16 | |||
| JP2011256437A | 2011-12-22 | |||
| JP2012132070A | 2012-07-12 | |||
| JP2013010982A | 2013-01-17 |
Other References:
See also references of EP 3378959A4
Attorney, Agent or Firm:
GINZA MARONIE P.C. (JP)
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