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11. 发明专利

JPH07320922A ONE DIRECTIONAL ELECTROMAGNETIC STEEL SHEET AT LOW IRON LOSS 失效
公开(公告)号：JPH07320922A
公开(公告)日：1995-12-08
申请号：JP12240694
申请日：1994-06-03
申请人： KAWASAKI STEEL CO
发明人： ISHIDA MASAYOSHI , SENDA KUNIHIRO , SATO KEIJI , KOMATSUBARA MICHIRO
IPC分类号： C21D8/12 , H01F1/16
摘要： PURPOSE:To provide the one directional electromagnetic steel sheet in low iron loss further cutting down the iron loss by the formation of linear trenches. CONSTITUTION:Within the title one directional electromagnetic steel sheet in low loss, multiple linear trenches in low iron extending in the intersectional direction with loss, many linear tranches and linear high transpositional density regions the rolling direction are provided at intervals respectively in the rolling directions on the surface of the finish-annealed directional silicon substrate, on the other hand, at least a part of the linear trenches and the high transpositional region are arranged on the position where the linear trenches are out of the formational region.

12. 发明专利

JPH06299244A MANUFACTURE OF SILICON STEEL SHEET HAVING EXCELLENT MAGNETIC CHARACTERISTIC 失效
公开(公告)号：JPH06299244A
公开(公告)日：1994-10-25
申请号：JP8463393
申请日：1993-04-12
申请人： KAWASAKI STEEL CO
发明人： ISHIDA MASAYOSHI , SATO KEIJI
IPC分类号： C21D8/12 , H01F1/16
摘要： PURPOSE:To stably manufacture a grain oriented silicon steel sheet having low iron loss without deteriorating the iron loss even after stress relieving annealing. CONSTITUTION:The manufacturing method of the grain oriented silicon steel sheet is composed of series of processes, i.e., after hot-rolling a silicon contg. steel stock, one time or two or more times of cold rolling including process annealing is applied to form the finish product sheet thickness and thereafter, decarburizing annealing and successively, finish annealing are applied, plural linear grooves are formed so as to extend in the direction crossed almost orthogonally to this rolling direction at prescribed intervals in the rolling direction. Then, at least one of outer edges in these linear grooves has such constitution that plural elements each combined in the arrangement of forming an angle with at least two straight lines mutually are arranged in the direction crossed orthogonally to the rolling direction. By this constitution, the silicon steel sheet having good and stable magnetic characteristics is obtd.

13. 发明专利

JPH0598398A HIGH SILICON GRAIN-ORIENTED SILICON STEEL SHEET AND ITS MANUFACTURE 失效
公开(公告)号：JPH0598398A
公开(公告)日：1993-04-20
申请号：JP25924691
申请日：1991-10-07
申请人： KAWASAKI STEEL CO
发明人： NISHIIKE UJIHIRO , TAKAHASHI MAKOTO , ISHIDA MASAYOSHI
IPC分类号： C22C38/00 , C22C38/02 , C23C10/02 , C23C10/28 , C23C16/24 , C23C16/56
摘要： PURPOSE:To manufacture a grain-oriented silicon steel sheet high in magnetic flux density, low in core loss and furthermore small in magnetostriction. CONSTITUTION:Oxides on the surface of a grain-oriented silicon steel sheet having =1000 deg.C to regulate the Si content in the steel sheet to >=4wt.%.

14. 发明专利

JPH0574643A MANUFACTURE OF SOFT MAGNETIC THIN FILM 失效
公开(公告)号：JPH0574643A
公开(公告)日：1993-03-26
申请号：JP23454891
申请日：1991-09-13
申请人： KAWASAKI STEEL CO
发明人： ISHIDA MASAYOSHI , ONO HIDEAKI
IPC分类号： C23C14/14 , H01F10/16 , H01F41/18
摘要： PURPOSE:To obtain a magnetic thin film which has saturation magnetic flux density of 20kG or higher and excellent soft magnetic characteristics. CONSTITUTION:When an Fe-Co based alloy thin film containing Co

15. 发明专利

JPH0472016A PRODUCTION OF FE-CO FOIL HAVING HIGH SATURATION MAGNETIC FLUX DENSITY 失效
公开(公告)号：JPH0472016A
公开(公告)日：1992-03-06
申请号：JP4562390
申请日：1990-02-28
申请人： KAWASAKI STEEL CO
发明人： SHISHIDO HIROSHI , ISHIDA MASAYOSHI
IPC分类号： B22D11/06 , C21D9/46 , C22C19/07 , C22C38/00 , C22C38/10 , C22F1/00 , C22F1/10
摘要： PURPOSE:To produce the foil excellent in magnetic properties and workability by preparing a foil from a molten Fe-Co alloy having specific Co content by means of liquisol quenching, performing recrystallization annealing while applying a magnetic field to the above foil under specific conditions, and then carrying out cooling. CONSTITUTION:A foil is prepared by means of liquisol quenching from a molten Fe-Co alloy containing 25-65wt.% Co as an essential component. Subsequently, recrystallization annealing is exerted at a temp. in the range between the temp. higher than the superlattice forming temp. of this alloy system and the temp. lower than the Curie point while applying a magnetic field of >=100A/m to the above foil, and then, cooling is carried out at >=100 deg.C/mm cooling rate. By this method, the coiled foil having >= about 30000 maximum magnetic peameability and capable of about 180 deg. bending can be produced.

16. 发明专利

JPH01264115A MANUFACTURE OF CERAMICS SUPERCONDUCTIVE WIRE MATERIAL 失效
公开(公告)号：JPH01264115A
公开(公告)日：1989-10-20
申请号：JP9018088
申请日：1988-04-14
申请人： KAWASAKI STEEL CO
发明人： SHISHIDO HIROSHI , GOTO SATOSHI , ISHIDA MASAYOSHI
IPC分类号： B21B1/16 , B21B1/22 , H01B12/04 , H01B13/00
摘要： PURPOSE:To obtain a material having the quality of superconduction, particularly higher critical electric current density by applying powders made up of the same material as a filling material to the surface of an outer cover material and annealing it after cold rolling the outer cover material filled with ceramics superconductive powder to form it in a line- or belt-shape. CONSTITUTION:After weighing powders of yttrium oxide, barium carbonate and copper oxide to form a desired compound, mixing these powders uniformly and molding them, the powders are calcinated at 950degrees centigrade and broken into pieces again. Then the powders are filled into an outer cover material made up of silver or an alloy of silver and this is processed to a fixed size by wire drawing cold rolling. The next process is to apply mixed liquid made by mixing and kneading the calcinated powders with organic binder whose viscosity is comparatively higher to the outer side of the processed outer cover material. Next, after the wire material is annealed at 900-100degrees centigrade, the temperature is slowly lowered to 400-600degrees centigrade and kept at 400-600degrees centigrade for several hours to adjust the density of oxygen and after that slowly lowered. This process can provide a material having the quality of superconduction, particularly higher critical electric current density.

17. 发明专利

JP2003153468A FERROMAGNETIC MATERIAL FOR STATOR OF MOTOR OR GENERATOR AND STATOR OF MOTOR OR GENERATOR UTILIZING IT 审中-公开
公开(公告)号：JP2003153468A
公开(公告)日：2003-05-23
申请号：JP2001340970
申请日：2001-11-06
申请人： KAWASAKI STEEL CO
发明人： TERAJIMA TAKASHI , OKABE SEIJI , ISHIDA MASAYOSHI , SHIGA NOBUISA
IPC分类号： H02K1/02
摘要： PROBLEM TO BE SOLVED: To provide a ferromagnetic material suitable for the stator of a rotating machine, especially an anisotropic electromagnetic plate, and means for lowering iron loss at the time of operating a motor or a generator using such a ferromagnetic material. SOLUTION: The ferromagnetic material for the stator of a motor or a generator has such characteristics as the ratio B10max /B10min of the maximum value B10max of flux density B10 at 1000 A/m to minimum value B10min is in the range of 1.15-1.6. The ratio B10max /B10min to the minimum value B10min characterizing that the value of B10 in the direction perpendicular to the easy direction of magnetization imparting the B10max is not lower than 0.75B10max is in the range of 1.15-1.6. The value of B10 in the direction perpendicular to the easy direction of magnetization imparting the B10max is not lower than 0.75B10max .

18. 发明专利

JP2002302745A ELECTROMAGNETIC STEEL SHEET FOR CORE 失效
公开(公告)号：JP2002302745A
公开(公告)日：2002-10-18
申请号：JP2001108210
申请日：2001-04-06
申请人： KAWASAKI STEEL CO
发明人： OKABE SEIJI , IMAMURA TAKESHI , HAYAKAWA YASUYUKI , TERAJIMA TAKASHI , ISHIDA MASAYOSHI
IPC分类号： C22C38/00 , C22C38/02 , H01F1/147 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a news electromagnetic steel sheet suitable for use as a core to be magnetized in two directions, i.e., a electromagnetic steel sheet superior to conventional nonoriented electromagnetic steel sheets in magnetic properties in L-direction and C-direction and suitable for use as a core to be magnetized in two directions such as a split-type stator core. SOLUTION: The area ratio of a crystal grain (A) having 100} (where u, v and w are arbitrary) orientation in the sheet surface is made to >=40%; the area ratio of a crystal grain (B) of 110} orientation in the sheet surface is made to 5-40%; and the total area ratio of the crystal grains (A) and (B) is made to >=60%, where the tolerance of each orientation is ±20 deg.. Moreover, Si is contained in an amount of 1-4 mass%.

19. 发明专利

JP2001303213A NONORIENTED SILICON STEEL SHEET FOR HIGH EFFICIENCY MOTOR 失效
公开(公告)号：JP2001303213A
公开(公告)日：2001-10-31
申请号：JP2000120408
申请日：2000-04-21
申请人： KAWASAKI STEEL CO
发明人： SHIGA NOBUISA , ISHIDA MASAYOSHI , KONO MASAKI , HONDA ATSUTO
IPC分类号： C22C38/00 , C22C38/06 , C22C38/60 , H01F1/16 , H02K1/02
摘要： PROBLEM TO BE SOLVED: To provide a nonoriented silicon steel sheet for a high efficiency motor by which, in a stacking stage for a motor core, fixed motor characteristics can stably be obtained whether staggered stacking is performed or not. SOLUTION: As to a ring sample obtained by stacking four sheets respectively having a composition containing, by mass,

20. 发明专利

JPH09209043A GRAIN-ORIENTED SILICON STEEL SHEET WITH LOW IRON LOSS AND ITS PRODUCTION 失效
公开(公告)号：JPH09209043A
公开(公告)日：1997-08-12
申请号：JP1853696
申请日：1996-02-05
申请人： KAWASAKI STEEL CO
发明人： SENDA KUNIHIRO , ISHIDA MASAYOSHI , TAKAMIYA TOSHITO , KOMATSUBARA MICHIRO
IPC分类号： C23C22/00 , C21D8/12 , C22C38/00 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To obtain a grain-oriented silicon steel sheet with low iron loss by specifying the total area, at a steel sheet surface, of the secondary recrystallized grains of a finish annealed grain-oriented silicon steel sheet having prescribed magnetic flux density and also specifying the average angle difference between neighboring crystalline grains in a direction perpendicular to rolling direction. SOLUTION: In a finish annealed grain-oriented silicon steel sheet of >=1.80T magnetic flux density B8 , the total area, at the steel sheet surface, of the secondary recrystallized grains of =k70% of the surface area of the steel sheet. Further, the average angle difference θc, defined by equation, between neighboring crystalline grains in a direction perpendicular to rolling direction, with respect to the secondary recrystallized grains constituting the steel sheet, is regulated so that it satisfies θc

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