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1. 发明专利

DE69317810D1 未知
公开(公告)号：DE69317810D1
公开(公告)日：1998-05-14
申请号：DE69317810
申请日：1993-01-28
申请人： KAWASAKI STEEL CO
发明人： INOKUTI YUKIO , SUZUKI KAZUHIRO , HINA EIJI
IPC分类号： C22C38/00 , C21D8/12 , C21D9/46 , C21D9/56 , H01F1/147 , H01F1/16 , H01F41/02
摘要： A grain oriented silicon steel sheet which exhibits reduced iron loss and which contributes excellent noise characteristics when used as a material of a stacked transformer. The sheet is produced by applying electron beam irradiation a finish-annealed grain oriented silicon steel sheet, along scan paths which cross the rolling direction at a scanning speed V(cm/s) and a spacing L(cm) in the rolling direction, with an electron beam of a beam diameter d (cm) generated by a current Ib (mA) and acceleration voltage Vk (KV); wherein the surface energy density alpha (J/cm ) on the surface of said steel sheet as determined by the following formula (1) is about 0.16 J/cm or more, and said surface energy density alpha (J/cm ) and the surface energy density beta (J/cm ) on the scan paths meet the approximate condition of the following formula (3): alpha = (Vk.Ib)/(L.v) (1> beta = (Vk.Ib)/(d.v) (2> 0.6 - 0.06 beta Disclosed also is a stacked transformer produced from this grain oriented silicon steel sheet.

2. 发明专利

DE3851087D1 未知
公开(公告)号：DE3851087D1
公开(公告)日：1994-09-22
申请号：DE3851087
申请日：1988-05-18
申请人： KAWASAKI STEEL CO , ULVAC CORP
发明人： INOKUTI YUKIO , ITO YO
IPC分类号： C21D9/56 , C23C14/56 , F16J15/16

3. 发明专利

DE3851087T2 未知
公开(公告)号：DE3851087T2
公开(公告)日：1994-12-01
申请号：DE3851087
申请日：1988-05-18
申请人： KAWASAKI STEEL CO , ULVAC CORP
发明人： INOKUTI YUKIO , ITO YO
IPC分类号： C21D9/56 , C23C14/56 , F16J15/16

4. 发明专利

DE3785632T2 未知
公开(公告)号：DE3785632T2
公开(公告)日：1993-08-05
申请号：DE3785632
申请日：1987-09-15
申请人： KAWASAKI STEEL CO
发明人： INOKUTI YUKIO , ITO YOH
IPC分类号： C21D8/12 , C23C26/00 , H01F1/147 , H01F1/18
摘要： An extra-low iron loss grain oriented silicon steel sheet is produced by irradiating electron beam to an insulation coating formed on a grain oriented silicon steel sheet after finish annealing in a direction crossing the rolling direction of the sheet, whereby the magnetic properties are not degraded even if the steel sheet is subjected to a strain relief annealing. If necessary, an inert gas may be introduced into the vicinity of electron beam irradiated zone of the coating.

5. 发明专利

DE3382043D1 未知
公开(公告)号：DE3382043D1
公开(公告)日：1991-01-17
申请号：DE3382043
申请日：1983-08-16
申请人： KAWASAKI STEEL CO
发明人： INOKUTI YUKIO , ITO YO , SHIMANAKA HIROSHI
IPC分类号： C21D8/12
摘要： Grain oriented silicon steel sheets or strips having high magnetic induction and ultra-low iron loss can be obtained by the intermediate annealing cycle containing a rapid heating and rapid cooling just before final cold rolling, wherein a first cold rolled sheet is rapidly heated from 500°C to 900°C at a heating rate of at least 5°C/sec and the steel sheet heated in the intermediate annealing is rapidly cooled from 900°C to 500°C at a cooling rate of at least 5°C/sec.

6. 发明专利

CA1198654A METHOD OF PRODUCING GRAIN ORIENTED SILICON STEEL SHEETS OR STRIPS HAVING HIGH MAGNETIC INDUCTION AND LOW IRON LOSS 未知
公开(公告)号：CA1198654A
公开(公告)日：1985-12-31
申请号：CA434820
申请日：1983-08-17
申请人： KAWASAKI STEEL CO
发明人： INOKUTI YUKIO , ITO YO , SHIMANAKA HIROSHI
IPC分类号： C21D8/12
摘要： Grain oriented silicon steel sheets or strips having high magnetic induction and ultra-low iron loss can be obtained by the intermediate annealing cycle containing a rapid heating and rapid cooling just before final cold rolling, wherein a first cold rolled sheet is rapidly heated from 500.degree.C to 900.degree.C at a heating rate of at least 5.degree.C/sec and the steel sheet heated in the intermediate annealing is rapidly cooled from 900.degree.C to 500.degree.C at a cooling rate of at least 5.degree.C/sec.

7. 发明专利

DE69527602T2 未知
公开(公告)号：DE69527602T2
公开(公告)日：2002-11-28
申请号：DE69527602
申请日：1995-12-05
申请人： KAWASAKI STEEL CO
发明人： INOKUTI YUKIO
IPC分类号： C21D3/04 , C21D8/12 , C22C38/02 , H01F1/147 , H01F1/16 , H01F1/18
摘要： In a grainoriented electromagnetic steel sheet exhibiting high magnetic flux density and low iron loss, having a composition containing about 2.5 to 4.0 weight percent of Si, and about 0.005 to 0.06 weight percent of Al, and i) at least about 95 percent by area ratio of all crystal grains in the electromagnetic steel sheet are large secondary recrystallized grains each having a diameter of about 5 to 50 mm, each having an Ä001Ü axis within about 5 DEG to the rolling direction of the sheet, and each having an Ä110Ü axis within about 5 DEG to the normal direction of the sheet face, and ii) small grains, each having a diameter of about 0.05 to 2 mm, and each having about 2 to 30 DEG of relative angle between the Ä001Ü axis of the small grains and the Ä001Ü axis of the large secondary crystallized grains, the small grains being located in the large secondary crystallized grains or at the grain boundaries. By adding Sb, or Sb and Mo to the steel, magnetic properties further improve.

8. 发明专利

DE69527602D1 未知
公开(公告)号：DE69527602D1
公开(公告)日：2002-09-05
申请号：DE69527602
申请日：1995-12-05
申请人： KAWASAKI STEEL CO
发明人： INOKUTI YUKIO
IPC分类号： C21D3/04 , C21D8/12 , C22C38/02 , H01F1/147 , H01F1/16 , H01F1/18
摘要： In a grainoriented electromagnetic steel sheet exhibiting high magnetic flux density and low iron loss, having a composition containing about 2.5 to 4.0 weight percent of Si, and about 0.005 to 0.06 weight percent of Al, and i) at least about 95 percent by area ratio of all crystal grains in the electromagnetic steel sheet are large secondary recrystallized grains each having a diameter of about 5 to 50 mm, each having an Ä001Ü axis within about 5 DEG to the rolling direction of the sheet, and each having an Ä110Ü axis within about 5 DEG to the normal direction of the sheet face, and ii) small grains, each having a diameter of about 0.05 to 2 mm, and each having about 2 to 30 DEG of relative angle between the Ä001Ü axis of the small grains and the Ä001Ü axis of the large secondary crystallized grains, the small grains being located in the large secondary crystallized grains or at the grain boundaries. By adding Sb, or Sb and Mo to the steel, magnetic properties further improve.

9. 发明专利

DD269489A5 未知
公开(公告)号：DD269489A5
公开(公告)日：1989-06-28
申请号：DD31288288
申请日：1988-02-12
申请人： KAWASAKI STEEL CO , ULVAC CORP
发明人： INOKUTI YUKIO , OHKUBO OSAMU
IPC分类号： H01J37/065

10. 发明专利

AU570835B2 METAL NITRIDE/CARBIDE COATED GRAIN ORIENTED SILICON STEEL SHEET 未知
公开(公告)号：AU570835B2
公开(公告)日：1988-03-24
申请号：AU5374786
申请日：1986-02-19
申请人： KAWASAKI STEEL CO
发明人： INOKUTI YUKIO , ITO YO
IPC分类号： C21D8/12 , C23C14/00 , C23C14/02 , C23C14/06 , C23C14/58 , C23C16/02 , C23C16/56 , H01F1/147 , C23C8/26 , C23C8/22 , C23C8/28 , C22C38/02 , C22C38/60 , H01F1/18
摘要： An extra-low iron less grain oriented silicon steel sheet comprises a base metal of silicon steel and a thin coat of nitride or carbide of Ti, Zr, Hf, V, Nb, Ta, Mn, Cr, Mo, W, Co, Ni, Aℓ, B and Si and strongly adhered to a finished surface of the base metal through a mixed layer of the base metal and the thin coat, and has excellent electrical and magnetic properties as well as good compressive stress dependence of magnetostriction and lamination factor.

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