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公开(公告)号：US20150213928A1
公开(公告)日：2015-07-30
申请号：US14413658
申请日：2012-08-08
申请人： Hiroaki Toda , Tadashi Nakanishi , Masaaki Kohno , Yoshihiko Oda
发明人： Hiroaki Toda , Tadashi Nakanishi , Masaaki Kohno , Yoshihiko Oda
IPC分类号： H01F1/16 , C21D8/02 , C21D6/00 , C22C38/34 , C22C38/60 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C22C38/32 , C21D9/46 , C22C38/12
CPC分类号： H01F1/16 , C21D1/76 , C21D6/002 , C21D6/005 , C21D6/008 , C21D8/0236 , C21D8/0263 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D8/1272 , C21D8/1283 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/32 , C22C38/34 , C22C38/60
摘要： According to the present invention, a high-strength electrical steel sheet that is suitable as rotor material for a high speed motor, steadily has high strength, and also has excellent magnetic properties can be obtained by setting the chemical composition thereof to include, by mass %, C: 0.005% or less, Si: more than 3.5% and 4.5% or less, Mn: 0.01% or more and 0.10% or less, Al: 0.005% or less, Ca: 0.0010% or more and 0.0050% or less, S: 0.0030% or less, and N: 0.0030% or less, Ca/S being 0.80 or more, the balance being Fe and incidental impurities, and by setting the sheet thickness to 0.40 mm or less, the non-recrystallized deformed microstructure to 10% or more and 70% or less, tensile strength (TS) to 600 MPa or more, and iron loss W10/400 to 30 W/kg or less.
摘要翻译： 根据本发明，适用于高速电动机的转子材料的高强度电工钢板稳定地具有高的强度，并且通过将其化学组成设定为包括质量 ％，C：0.005％以下，Si：超过3.5％，4.5％以下，Mn：0.01％以上且0.10％以下，Al：0.005％以下，Ca：0.0010％以上且0.0050％以下 S：0.0030％以下，N：0.0030％以下，Ca / S为0.80以上，余量为Fe和附带杂质，通过将片材厚度设定为0.40mm以下，未再结晶变形 微观结构为10％以上且70％以下，拉伸强度（TS）为600MPa以上，铁损W10 / 400〜30W / kg以下。
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公开(公告)号：US20130133783A1
公开(公告)日：2013-05-30
申请号：US13814629
申请日：2011-08-04
申请人： Hiroi Yamaguchi , Seiji Okabe , Takeshi Omura , Tadashi Nakanishi
发明人： Hiroi Yamaguchi , Seiji Okabe , Takeshi Omura , Tadashi Nakanishi
IPC分类号： H01F1/01
CPC分类号： H01F1/01 , C21D8/1261 , C21D8/1283 , C21D8/1288 , C21D8/1294 , C21D2201/05 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/34 , H01F1/16
摘要： A grain oriented electrical steel sheet has a magnetic domain structure modified by strain introduction without a trace of treatment, in which noise generated when the grain oriented electrical steel sheet is used laminated on an iron core of a transformer is effectively reduced by: setting a magnetic flux density B8 to 1.92 T or higher; then setting a ratio of average magnetic domain width of treated surface after strain-introducing treatment Wa to average magnetic domain width before strain-introducing treatment W0 as Wa/W0 0.7; and further setting a ratio of average width of magnetic domain discontinuous portion in the untreated surface to average width of magnetic domain discontinuous portion in treated surface resulting from strain-introducing treatment Wc as Wd/Wc>0.8; and setting Wc
摘要翻译： 晶粒取向电工钢板具有通过应变引入改性的磁畴结构，而不需要进行微处理，当通过使用层压在变压器的铁芯上的方向的电磁钢板产生的噪声有效地减小：设置磁 磁通密度B8〜1.92T以上; 然后将应变导入处理后的处理面的平均磁畴宽度与应变导入处理前的平均磁畴宽度W0设定为Wa / W0 <0.4; 并将Wa与未处理表面Wb的平均磁畴宽度的比设定为Wa / Wb> 0.7; 进一步将未处理面的磁畴不连续部的平均宽度与应变导入处理Wc的处理面的磁畴不连续部的平均宽度的比设为Wd / Wc> 0.8; 并设置Wc <0.3.5 mm。
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公开(公告)号：US20090101248A1
公开(公告)日：2009-04-23
申请号：US11663751
申请日：2005-11-28
CPC分类号： C21C7/0087 , C21C7/076 , C21C7/10 , C21D8/12 , C22C38/02 , C22C38/04 , H01F1/14775 , Y02P10/242
摘要： The present invention provides a grain-oriented electrical steel sheet produced by a method for promoting secondary recrystallization without an inhibitor, the grain-oriented electrical steel sheet including 2.0% or more and 4.5% or less of Si and 0.01% or more and 0.5% or less of Mn on a mass % basis, wherein the number of oxide particles having a diameter of 1 to 3 μm among that (oxide particles) of containing Ca and/or Mg is 400 or less per unit area (1 cm2) in a transverse cross-section perpendicular to a rolling direction. Therefore, the grain-oriented electrical steel sheet has excellent stable magnetic properties throughout the length of a coil.
摘要翻译： 本发明提供一种通过不用抑制剂促进二次再结晶的方法制造的方向性电磁钢板，所述方向性电磁钢板包括2.0％以上且4.5％以下的Si，0.01％以上且0.5％以下， 以下，以质量％计含有Mn以下，其中，含有Ca和/或Mg的（氧化物粒子）中的直径为1〜3μm的氧化物粒子的数量为单位面积（1cm 2）为400以下 垂直于轧制方向的横截面。 因此，晶粒取向电工钢板在整个线圈长度上具有优异的稳定的磁性能。
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公开(公告)号：US4837791A
公开(公告)日：1989-06-06
申请号：US162096
申请日：1988-02-29
CPC分类号： H03K23/004
摘要： A high-speed counter using radix-N Signed-Digit redundancy adders, an initial value generator and an interim value generator for each digit. The initial value is selected based upon a desired count. The transfer digit and interim value for each digit are generated to eliminate a carry propagation from a lower digit position. The high-speed counter reaches a desired count with a certain delay time regardless of the starting count value.
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公开(公告)号：US10242782B2
公开(公告)日：2019-03-26
申请号：US14413658
申请日：2012-08-08
申请人： Hiroaki Toda , Tadashi Nakanishi , Masaaki Kohno , Yoshihiko Oda
发明人： Hiroaki Toda , Tadashi Nakanishi , Masaaki Kohno , Yoshihiko Oda
IPC分类号： H01F1/16 , C22C38/06 , C22C38/60 , C21D1/76 , C21D8/12 , C22C38/00 , C22C38/02 , C22C38/04 , C21D6/00 , C21D8/02 , C21D9/46 , C22C38/12 , C22C38/32 , C22C38/34
摘要： According to the present invention, a high-strength electrical steel sheet that is suitable as rotor material for a high speed motor, steadily has high strength, and also has excellent magnetic properties can be obtained by setting the chemical composition thereof to include, by mass %, C: 0.005% or less, Si: more than 3.5% and 4.5% or less, Mn: 0.01% or more and 0.10% or less, Al: 0.005% or less, Ca: 0.0010% or more and 0.0050% or less, S: 0.0030% or less, and N: 0.0030% or less, Ca/S being 0.80 or more, the balance being Fe and incidental impurities, and by setting the sheet thickness to 0.40 mm or less, the non-recrystallized deformed microstructure to 10% or more and 70% or less, tensile strength (TS) to 600 MPa or more, and iron loss W10/400 to 30 W/kg or less.
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公开(公告)号：US09799432B2
公开(公告)日：2017-10-24
申请号：US13814629
申请日：2011-08-04
申请人： Hiroi Yamaguchi , Seiji Okabe , Takeshi Omura , Tadashi Nakanishi
发明人： Hiroi Yamaguchi , Seiji Okabe , Takeshi Omura , Tadashi Nakanishi
CPC分类号： H01F1/01 , C21D8/1261 , C21D8/1283 , C21D8/1288 , C21D8/1294 , C21D2201/05 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/34 , H01F1/16
摘要： A grain oriented electrical steel sheet has a magnetic domain structure modified by strain introduction without a trace of treatment, in which noise generated when the grain oriented electrical steel sheet is used laminated on an iron core of a transformer is effectively reduced by: setting a magnetic flux density B8 to 1.92 T or higher; then setting a ratio of average magnetic domain width of treated surface after strain-introducing treatment Wa to average magnetic domain width before strain-introducing treatment W0 as Wa/W0 0.7; and further setting a ratio of average width of magnetic domain discontinuous portion Wd in the untreated surface to average width of magnetic domain discontinuous portion in treated surface resulting from strain-introducing treatment Wc as Wd/Wc>0.8; and setting Wc
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公开(公告)号：US08177920B2
公开(公告)日：2012-05-15
申请号：US11663751
申请日：2005-11-28
IPC分类号： C21D8/12 , C22C38/02 , H01F1/16 , H01F27/245
CPC分类号： C21C7/0087 , C21C7/076 , C21C7/10 , C21D8/12 , C22C38/02 , C22C38/04 , H01F1/14775 , Y02P10/242
摘要： The present invention provides a grain-oriented electrical steel sheet produced by a method for promoting secondary recrystallization without an inhibitor, the grain-oriented electrical steel sheet including 2.0% or more and 4.5% or less of Si and 0.01% or more and 0.5% or less of Mn on a mass % basis, wherein the number of oxide particles having a diameter of 1 to 3 μm among that (oxide particles) of containing Ca and/or Mg is 400 or less per unit area (1 cm2) in a transverse cross-section perpendicular to a rolling direction. Therefore, the grain-oriented electrical steel sheet has excellent stable magnetic properties throughout the length of a coil.
摘要翻译： 本发明提供一种通过不用抑制剂促进二次再结晶的方法制造的方向性电磁钢板，所述方向性电磁钢板包括2.0％以上且4.5％以下的Si，0.01％以上且0.5％以下， 以含有Ca和/或Mg的（氧化物粒子）中的直径为1〜3μm的氧化物粒子的数量为单位面积（1cm 2）为400以下， 垂直于轧制方向的横截面。 因此，晶粒取向电工钢板在整个线圈长度上具有优异的稳定的磁性能。
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公开(公告)号：US06602357B2
公开(公告)日：2003-08-05
申请号：US10057220
申请日：2002-01-24
IPC分类号： H01F1147
CPC分类号： C22C38/34 , C21D8/1266 , C21D8/1283 , C21D8/1288 , C22C38/002 , C22C38/06 , C22C38/20 , C22C38/60 , H01F1/14775 , H01F1/14783
摘要： A grain oriented electrical steel sheet comprises metal part containing Si: about 2.5 to about 5.0 mass % and Cr: about 0.05 to about 1.0 mass %, and an insulation coating formed on a surface of the metal part. A tension imparted to the metal part in the rolling direction by the insulation coating is not smaller than about 3.0 MPa. Magnetic flux density B8 satisfies a specific relation formula. A plurality of linear strains or grooves are formed in a surface of the steel sheet and linearly extended at an angle of not larger than about 45° (in each direction) relative to a direction perpendicular to a rolling direction such that an interval D of the linear strains or grooves satisfies a specific relation formula depending on the Cr content. A grain oriented electrical steel sheet is thereby obtained which has lower iron loss after domain refining treatment than conventional values. In the production process for the steel sheet of the invention, parameters such as annealing temperature in annealing before final cold rolling are controlled.
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