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11.发明授权Grain oriented electrical steel sheet having very low iron loss and production process for same 有权晶粒取向电工钢片铁损非常低，生产工艺相同公开(公告)号：US06364963B1
公开(公告)日：2002-04-02
申请号：US09548085
申请日：2000-04-11
IPC分类号： H01F1147
CPC分类号： C21D8/12 , C21D8/1222 , C21D8/1294 , C21D2201/05
摘要： In a grain oriented electrical steel sheet used for cores of transformers and generators, a high alignment degree of grain orientations reduces iron loss, by precipitating very fine AlN or/and BN and providing strong inhibiting effect against the growth of the primary recrystallized grains, providing radically improved texture and grain structure in the steel.
摘要翻译： 在用于变压器和发电机的磁芯的晶粒取向电工钢板中，晶粒取向度的高取向度通过沉淀非常细的AlN或/和BN并且对一次再结晶晶粒的生长提供强的抑制作用而降低铁损，提供 从根本上改善了钢的纹理和晶粒结构。
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公开(公告)号：US09187798B2
公开(公告)日：2015-11-17
申请号：US13703833
申请日：2011-06-17
CPC分类号： C21D8/0205 , C21D8/12 , C21D8/1216 , C21D8/1244 , C21D2201/05 , C22C38/004 , C22C38/02 , C22C38/06 , C22C38/60 , H01F1/16
摘要： The present invention provides a method for manufacturing a grain oriented electrical steel sheet, including preparing as a material a steel slab having a predetermined composition and carrying out at least two cold rolling operations, characterized in that a thermal treatment is carried out, prior to any one of cold rolling operations other than final cold rolling, at temperature in the range of 500° C. to 750° C. for a period in the range of 10 minutes to 480 hours. The grain oriented electrical steel sheet of the present invention exhibits through utilization of austenite-ferrite transformation superior magnetic properties after secondary recrystallization.
摘要翻译： 本发明提供一种制造晶粒取向电工钢板的方法，包括制备具有预定组成的钢板并进行至少两次冷轧操作的材料，其特征在于，在任何 在最终冷轧之外的冷轧操作之一，在500℃至750℃的温度范围内，持续10分钟至480小时的时间。 本发明的晶粒取向电工钢板通过二次再结晶后的奥氏体 - 铁素体相变优异的磁特性表现出来。
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公开(公告)号：US08760155B2
公开(公告)日：2014-06-24
申请号：US13059467
申请日：2009-08-26
申请人： Hiroharu Kato , Akio Nagamune , Toshito Takamiya
发明人： Hiroharu Kato , Akio Nagamune , Toshito Takamiya
IPC分类号： G01N27/72
摘要： A magnetism measuring method includes magnetizing a magnetic material with a direct current to a rotational magnetization region, performing an alternate current excitation in a direction having a component orthogonal to a direction of the direct current magnetization, and measuring a component of an alternate current magnetic field generated by an interaction with the magnetic material in a direction orthogonal to the direction of the direct current magnetization.
摘要翻译： 一种磁测量方法，包括：将具有直流电流的磁性材料磁化到旋转磁化区域，在具有与直流磁化方向正交的分量的方向上进行交流励磁，以及测量交流磁场的分量 在与直流磁化方向正交的方向上与磁性材料的相互作用产生。
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公开(公告)号：US6083326A
公开(公告)日：2000-07-04
申请号：US953920
申请日：1997-10-20
CPC分类号： C22C38/02 , C21D8/1294 , H01F1/14775
摘要： A grain-oriented electromagnetic steel sheet having a multiplicity of fine grains having a diameter of about 3 mm or less on the surface of the steel sheet, in a numerical ratio of about 65% or more and of about 98% or less relative to the constituting grains that penetrate the sheet along the direction parallel to its thickness, and a method for producing the same. The fine grains are artificially created and regularly disposed with a random orientation in the steel sheet, and contribute to decreasing the strain susceptibility of the steel. More preferably, a treatment for finely dividing magnetic domains is applied on the surface of the steel sheet. Transformers based upon the steel sheet have excellent magnetic characteristics (iron loss and magnetic flux density) together with strain resistance, and the steel sheet has good practical device characteristics (building factor) after being assembled into a transformer.
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公开(公告)号：US5885371A
公开(公告)日：1999-03-23
申请号：US947641
申请日：1997-10-09
申请人： Michiro Komatsubara , Toshito Takamiya , Kunihiro Senda , Mineo Muraki , Chizuko Goto , Mitsumasa Kurosawa , Kazuaki Tamura
发明人： Michiro Komatsubara , Toshito Takamiya , Kunihiro Senda , Mineo Muraki , Chizuko Goto , Mitsumasa Kurosawa , Kazuaki Tamura
CPC分类号： C21D8/1222 , C21D8/1233 , C21D8/1261
摘要： A method of producing a grain-oriented magnetic steel sheet exhibiting a very low core loss and high magnetic flux density uses a slab of silicon steel containing Al, B, N, and S and/or Se. The method employs hot rolling conducted such that the rolling reduction falls within the range of from about 85 to 99%, and the hot-rolling finish temperature falls within the range of from 950.degree. to 1150.degree. C. and is based on the contents of Si, Al and B. The hot-rolled steel sheet is rapidly cooled at a cooling rate of about 20.degree. C./s and is coiled at a temperature of about 670.degree. C. or lower. Hot-rolled sheet annealing or intermediate annealing is executed by heating the hot-rolled steel sheet up to about 800.degree. C. at a heating rate of from 5.degree. to 25.degree. C./s and holding at a temperature of from about 800.degree. to 1125.degree. C. for a period not longer than about 150 seconds. Final cold rolling is executed at a rolling reduction of from 80 to 95%, followed by final finish annealing conducted with specific control of annealing atmosphere.
摘要翻译： 表现出非常低的磁芯损耗和高磁通密度的晶粒取向电磁钢板的制造方法使用含有Al，B，N，S和/或Se的硅钢板。 该方法采用热轧进行，使得轧制压下率在约85-99％的范围内，并且热轧最终温度在950℃至1150℃的范围内，并且基于 Si，Al和B.热轧钢板以约20℃/ s的冷却速度快速冷却，并在约670℃以下的温度下卷绕。 热轧板退火或中间退火通过以5℃〜25℃的加热速度将热轧钢板加热至约800℃，并保持在约800℃的温度 至1125℃，持续不超过约150秒的时间。 以80〜95％的压下率进行最终冷轧，然后进行退火气氛的特定控制的最终成品退火。
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16.发明授权
公开(公告)号：US5572892A
公开(公告)日：1996-11-12
申请号：US295621
申请日：1994-08-25
申请人： Mineo Muraki , Toshito Takamiya , Satoshi Koseki
发明人： Mineo Muraki , Toshito Takamiya , Satoshi Koseki
CPC分类号： C21D8/1222 , B21B3/02 , C21D8/1277
摘要： In a production method for silicon steel hot rolled sheets by subjecting a slab of silicon steel to a rough hot rolling through high-temperature heating and then subjecting to a finish hot rolling, rolling at the first stand in the finish hot rolling is carried out so that a relation of thickness at entrance side of the stand t.sub.F1 (mm), thickness at delivery side thereof t.sub.F2 (mm), surface temperature of steel sheet at gripping T.sub.F0 (.degree. C.) and temperature at the depth of (t.sub.F1 -t.sub.F2)/2 (mm) from the surface of the steel sheet at gripping T.sub.F1 satisfies the following equation:(T.sub.F1 -T.sub.F0)/{(t.sub.F1 -t.sub.F2)/2}.ltoreq.10+t.sub.F1 /10 (.degree.C./mm).Thus, surface defect and surface cracks can be prevented in the hot rolling to provide silicon steel sheets having excellent surface properties.
摘要翻译： PCT No.PCT / JP93 / 01901 Sec。 371日期：1994年8月25日 102（e）日期1994年8月25日PCT提交1993年12月27日PCT公布。 第WO94 / 14549号公报 日期：1994年7月7日在硅钢热轧板的制造方法中，通过高温加热对硅钢板进行粗热轧，然后进行精加工热轧，在第一机架中滚烫 进行轧制，使得托架入口侧的厚度tF1（mm），其出口侧的厚度tF2（mm），夹紧TF0（℃）下的钢板表面温度与深度处的温度的关系 （TF1-TF0）/ {（tF1-tF2）/ 2}（tF1-tF2）/ 2（mm）满足下式：（TF1-TF0）/ 因此，在热轧时可以防止表面缺陷和表面裂纹，提供具有优异表面性能的硅钢板。
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公开(公告)号：US20110148405A1
公开(公告)日：2011-06-23
申请号：US13059467
申请日：2009-08-26
申请人： Hiroharu Kato , Akio Nagamune , Toshito Takamiya
发明人： Hiroharu Kato , Akio Nagamune , Toshito Takamiya
摘要： A magnetism measuring method includes magnetizing a magnetic material with a direct current to a rotational magnetization region, performing an alternate current excitation in a direction having a component orthogonal to a direction of the direct current magnetization, and measuring a component of an alternate current magnetic field generated by an interaction with the magnetic material in a direction orthogonal to the direction of the direct current magnetization.
摘要翻译： 一种磁测量方法，包括：将具有直流电流的磁性材料磁化到旋转磁化区域，在具有与直流磁化方向正交的分量的方向上进行交流励磁，以及测量交流磁场的分量 在与直流磁化方向正交的方向上与磁性材料的相互作用产生。
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公开(公告)号：US06929704B2
公开(公告)日：2005-08-16
申请号：US10163522
申请日：2002-06-06
CPC分类号： C22C38/02 , C21D8/1294 , H01F1/14775
摘要： A grain-oriented electromagnetic steel sheet having a multiplicity of fine grains having a diameter of about 3 mm or less on the surface of the steel sheet, in a numerical ratio of about 65% or more and of about 98% or less relative to the constituting grains that penetrate the sheet along the direction parallel to its thickness, and a method for producing the same. The fine grains are artificially created and regularly disposed with a random orientation in the steel sheet, and contribute to decreasing the strain susceptibility of the steel. More preferably, a treatment for finely dividing magnetic domains is applied on the surface of the steel sheet.Transformers based upon the steel sheet have excellent magnetic characteristics (iron loss and magnetic flux density) together with strain resistance, and the steel sheet has good practical device characteristics (building factor) after being assembled into a transformer.
摘要翻译： 在钢板表面上具有大约3mm以下的多个细晶粒的晶粒取向电磁钢板相对于该钢板的数值比例为约65％以上且约98％以下 构成沿着与其厚度平行的方向贯穿片材的颗粒及其制造方法。 在钢板中人造生产和规则地随机取向的细晶粒，有助于降低钢的应变敏感性。 更优选地，在钢板的表面上施加用于细分割磁畴的处理。 基于钢板的变压器具有优异的磁特性（铁损和磁通密度）以及应变阻力，并且在组装成变压器之后，钢板具有良好的实际装置特性（建筑因子）。
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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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公开(公告)号：US06444050B1
公开(公告)日：2002-09-03
申请号：US09557230
申请日：2000-04-24
IPC分类号： H01F1147
CPC分类号： C22C38/02 , C21D8/1294 , H01F1/14775
摘要： A grain-oriented electromagnetic steel sheet having a multiplicity of fine grains having a diameter of about 3 mm or less on the surface of the steel sheet, in a numerical ratio of about 65% or more and of about 98% or less relative to the constituting grains that penetrate the sheet along the direction parallel to its thickness, and a method for producing the same. The fine grains are artificially created and regularly disposed with a random orientation in the steel sheet, and contribute to decreasing the strain susceptibility of the steel. More preferably, a treatment for finely dividing magnetic domains is applied on the surface of the steel sheet. Transformers based upon the steel sheet have excellent magnetic characteristics (iron loss and magnetic flux density) together with strain resistance, and the steel sheet has good practical device characteristics (building factor) after being assembled into a transformer.
摘要翻译： 在钢板表面上具有大约3mm以下的多个细晶粒的晶粒取向电磁钢板相对于该钢板的数值比例为约65％以上且约98％以下 构成沿着与其厚度平行的方向贯穿片材的颗粒及其制造方法。 在钢板中人造生产和规则地随机取向的细晶粒，有助于降低钢的应变敏感性。 更优选地，在钢板的表面上施加用于细分割磁畴的处理。 基于钢板的变压器具有优异的磁特性（铁损和磁通密度）以及应变阻力，并且在组装成变压器之后，钢板具有良好的实际装置特性（建筑因子）。
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