Title:
無方向性電磁鋼板の製造方法
Document Type and Number:
Japanese Patent JP5529418
Kind Code:
B2
Abstract:
The present invention relates to a method for producing non grain-oriented magnetic steel sheets in which hot strip is produced from an input stock such as cast slabs, strip, roughed strip, or thin slabs, made of steel comprising (in weight %) C: 0.001-0.05%; Si: <=1.5%; Al: <=0.4% with Si+2Al<=1.7%; Mn: 0.1-1.2%; if necessary up to a total of 1.5% of alloying additions such as P, Sn, Sb, Zr, V, Ti, N, Ni, Co, Nb and/or B; with the remainder being iron as well as the usual accompanying elements; in that the input stock is hot-rolled directly from the casting heat or after preceding reheating to a reheating temperature between min. 1000° C. and max. 1180° C. in several deformation passes, and subsequently coiled, wherein during hot-rolling at least the first deformation pass takes place in the austenitic region and at least one further deformation pass takes place in the two-phase mixing region austenite/ferrite, and wherein during rolling in the two-phase mixing region a total deformation epsilonh of at least 35% is achieved.
Inventors:
Kavala, Rudolph
Pilcher, Hans
Karl Ernst Friedrich
Hummer, brigitte
Schneider, Jürgen
Fischer, Olaf
Carl Buppermann, Dieter
Pilcher, Hans
Karl Ernst Friedrich
Hummer, brigitte
Schneider, Jürgen
Fischer, Olaf
Carl Buppermann, Dieter
Application Number:
JP2009024285A
Publication Date:
June 25, 2014
Filing Date:
February 04, 2009
Export Citation:
Assignee:
ThyssenKrupp Steel Europe AG
International Classes:
C21D8/12; B21B1/22; B21B3/02; C22C38/00; C22C38/06; C22C38/14; C22C38/60; H01F1/16
Domestic Patent References:
| JP6220537A | ||||
| JP7097628A | ||||
| JP5287382A | ||||
| JP2104619A | ||||
| JP5156359A | ||||
| JP11050209A | ||||
| JP6503609A | ||||
| JP2002504624A |
Attorney, Agent or Firm:
Kenichi Morita
Kenjiro Yamaguchi
Kenjiro Yamaguchi