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1. 发明专利

DE69618682T2 未知
公开(公告)号：DE69618682T2
公开(公告)日：2002-08-14
申请号：DE69618682
申请日：1996-02-08
申请人： KAWASAKI STEEL CO
发明人： KOMATSUBARA MICHIRO , ISHIDA MASAYOSHI , SENDA KUNIHIRO
IPC分类号： C21D8/12 , C21D11/00
摘要： A method of manufacturing a grain-oriented silicon steel sheet having excellent and stable magnetic characteristics which includes the steps of subjecting a silicon steel slab to hot rolling to form a hot-rolled sheet, cold rolling the hot-rolled sheet at least once with intermediate annealings between successive cold rollings to form a cold-rolled sheet, and thereafter primary recrystallization annealing the cold-rolled sheet to form a primary recrystallized sheet. The primary recrystallized sheet is then final finish annealed, which includes a secondary recrystallization annealing and a purifying annealing during which the steel slab is coated with an annealing separator. The coercive force of the primary recrystallized steel sheet is controlled to a predetermined range before the start of secondary recrystallization.

2. 发明专利

CA2139063C LOW-IRON-LOSS GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET ANDMETHOD OF PRODUCING THE SAME 未知
公开(公告)号：CA2139063C
公开(公告)日：2005-10-18
申请号：CA2139063
申请日：1994-12-23
申请人： KAWASAKI STEEL CO
发明人： SATO KEIJI , ISHIDA MASAYOSHI , SENDA KUNIHIRO , SUZUKI KAZUHIRO , KOMATUBARA MICHIRO
IPC分类号： C21D7/04 , C21D8/12 , B21B1/08 , B21C23/06 , B21H1/00
摘要： A low-iron-loss grain-oriented electromagnetic steel sheet is provided with the multiplicity of linear grooves formed in a surface thereof to extend in a direction substantially perpendicular to the direction of rolling of the steel sheet at a predetermined pitch in the direction of rolling, and a multiplicity of linear high dislocation density regions introduced to extend in a direction substantially perpendicular to the direction of rolling of the steel sheet at a predetermined pitch in the direction of rolling. The pitches 11 and 12 of the linear grooves and the high dislocation density regions, respectively, satisfy equations (1) and (2): 1 .ltoreq. l1 .ltoreq. 30 (mm) ........ (1) 5 .ltoreq. .times. l2 .ltoreq. 100 ........(2).

3. 发明专利

DE69424762T2 未知
公开(公告)号：DE69424762T2
公开(公告)日：2000-10-26
申请号：DE69424762
申请日：1994-12-23
申请人： KAWASAKI STEEL CO
发明人： SATO KEIJI , ISHIDA MASAYOSHI , SENDA KUNIHIRO , SUZUKI KAZUHIRO , KOMATUBARA MICHIRO
IPC分类号： C21D7/04 , C21D8/12

4. 发明专利

CA2139063A1 LOW-IRON-LOSS GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET ANDMETHOD OF PRODUCING THE SAME 未知
公开(公告)号：CA2139063A1
公开(公告)日：1995-06-29
申请号：CA2139063
申请日：1994-12-23
申请人： KAWASAKI STEEL CO
发明人： SATO KEIJI , ISHIDA MASAYOSHI , SENDA KUNIHIRO , SUZUKI KAZUHIRO , KOMATUBARA MICHIRO
IPC分类号： C21D7/04 , C21D8/12 , B21B1/08 , B21C23/06 , B21H1/00
摘要： A low-iron-loss grain-oriented electromagnetic steel sheet is provided with the multiplicity of linear grooves formed in a surface thereof to extend in a direction substantially perpendicular to the direction of rolling of the steel sheet at a predetermined pitch in the direction of rolling, and a multiplicity of linear high dislocation density regions introduced to extend in a direction substantially perpendicular to the direction of rolling of the steel sheet at a predetermined pitch in the direction of rolling. The pitches 11 and 12 of the linear grooves and the high dislocation density regions, respectively, satisfy-equations (1) and (2): 1 ? 11 ? 30 (mm) ........(1) 5 ? ? x 12 ? 100 ........(2).

5. 发明专利

DE69618682D1 未知
公开(公告)号：DE69618682D1
公开(公告)日：2002-03-14
申请号：DE69618682
申请日：1996-02-08
申请人： KAWASAKI STEEL CO
发明人： KOMATSUBARA MICHIRO , ISHIDA MASAYOSHI , SENDA KUNIHIRO
IPC分类号： C21D8/12 , C21D11/00
摘要： A method of manufacturing a grain-oriented silicon steel sheet having excellent and stable magnetic characteristics which includes the steps of subjecting a silicon steel slab to hot rolling to form a hot-rolled sheet, cold rolling the hot-rolled sheet at least once with intermediate annealings between successive cold rollings to form a cold-rolled sheet, and thereafter primary recrystallization annealing the cold-rolled sheet to form a primary recrystallized sheet. The primary recrystallized sheet is then final finish annealed, which includes a secondary recrystallization annealing and a purifying annealing during which the steel slab is coated with an annealing separator. The coercive force of the primary recrystallized steel sheet is controlled to a predetermined range before the start of secondary recrystallization.

6. 发明专利

DE69424762D1 未知
公开(公告)号：DE69424762D1
公开(公告)日：2000-07-06
申请号：DE69424762
申请日：1994-12-23
申请人： KAWASAKI STEEL CO
发明人： SATO KEIJI , ISHIDA MASAYOSHI , SENDA KUNIHIRO , SUZUKI KAZUHIRO , KOMATUBARA MICHIRO
IPC分类号： C21D7/04 , C21D8/12

7. 发明专利

CA2169333A1 METHOD OF MANUFACTURING GRAIN-ORIENTED SILICON STEEL SHEET HAVING EXCELLENT MAGNETIC CHARACTERISTICS 未知
公开(公告)号：CA2169333A1
公开(公告)日：1996-08-14
申请号：CA2169333
申请日：1996-02-12
申请人： KAWASAKI STEEL CO
发明人： KOMATSUBARA MICHIRO , ISHIDA MASAYOSHI , SENDA KUNIHIRO
IPC分类号： C21D8/12 , C21D11/00
摘要： A method of manufacturing a grain-oriented silicon steel sheet having excellent and stable magnetic characteristics which includes the steps of subjecting a silicon steel slab to hot rolling to form a hot-rolled sheet, cold rolling the hot-rolled sheet at least once with intermediate annealings between successive cold rollings to form a cold-rolled sheet, and thereafter primary recrystallization annealing the cold-rolled sheet to form a primary recrystallized sheet. The primary recrystallized sheet is then final finish annealed, which includes a secondary recrystallization annealing and a purifying annealing during which the steel slab is coated with an annealing separator. The coercive force of the primary recrystallized steel sheet is controlled to a predetermined range before the start of secondary recrystallization.

8. 发明专利

JP2002226952A NONORIENTED SILICON STEEL SHEET FOR IRON CORE OF MOTOR AND PRODUCTION METHOD THEREFOR 失效
公开(公告)号：JP2002226952A
公开(公告)日：2002-08-14
申请号：JP2001022802
申请日：2001-01-31
申请人： KAWASAKI STEEL CO
发明人： HONDA ATSUTO , KONO MASAAKI , SADAHIRO KENICHI , ISHIDA MASAYOSHI
IPC分类号： C21D8/12 , C22C38/00 , C22C38/02 , C22C38/60 , H01F1/16 , H02K1/02
摘要： PROBLEM TO BE SOLVED: To provide a nonoriented silicon steel sheet which has low core loss in a high frequency-high magnetic flux density region, has small residual magnetic flux density, and is suitable for a switched reluctance motor. SOLUTION: The component of the steel are controlled to a composition containing, by mass,

9. 发明专利

JP2001279403A NONORIENTED SILICON STEEL SHEET EXCELLENT IN HIGH FREQUENCY MAGNETIC PROPERTY 失效
公开(公告)号：JP2001279403A
公开(公告)日：2001-10-10
申请号：JP2000097142
申请日：2000-03-31
申请人： KAWASAKI STEEL CO
发明人： SHIGA NOBUISA , KONDO OSAMU , SADAHIRO KENICHI , ISHIDA MASAYOSHI , HONDA ATSUTO
IPC分类号： C22C38/00 , C22C38/34 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a nonoriented silicon steel sheet having excellent magnetic properties particularly in a frequency region of >=10 kHz and advantageously suitable for a high frequency reactor. SOLUTION: This steel sheet contains 1.5 to 20% Cr and 2.5 to 10% Si by mass, and the total content of C and N is =60 μΩ cm, sheet thickness 0.01 to 0.40 mm, and surface average roughness

10. 发明专利

JPH11111516A DIRECTIONAL ELECTROMAGNETIC STEEL PLATE FOR LAMINATED CORE 失效
公开(公告)号：JPH11111516A
公开(公告)日：1999-04-23
申请号：JP27252197
申请日：1997-10-06
申请人： KAWASAKI STEEL CO
发明人： OKABE SEIJI , ISHIDA MASAYOSHI
IPC分类号： C21D8/12 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To reduce the increase in noise at a 45 deg. junction part of a laminated core, by iteratively forming a linear notch satisfying a specified range of angle with respect to the longitudinal direction of a steel plate on the surface of the steel plate, and inverting the formation pattern of the linear notch within a length used as the laminated core. SOLUTION: At a 45 deg. junction part of a laminated core, in the case where an angle made by a linear notch and the longitudinal direction is 80 deg., an angle made by the linear notch and an junction oblique side is 35 deg. or 55 deg.. In the case of 35 deg., noise is greater than in the case of 55 deg.. Thus, the formation pattern of the linear notch is inverted within a length used as the laminated core, and the angle made by the junction oblique side and the linear notch is caused to be 55 deg. at both ends. Thus, the magnetostriction and hence the noise at the 45 deg. junction part is reduced. Moreover, a linear notch is formed so as to be symmetrical on both sides of a centerline of the steel plate. Thus, the angle made by each junction oblique side and the linear notch is 55 deg. at both 45 deg. junction parts, and reduction in the noise can be realized.

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