公开(公告)号：US06531001B2

公开(公告)日：2003-03-11

申请号：US10140207

申请日：2002-05-08

申请人： Yasuyuki Hayakawa ,  Mitsumasa Kurosawa ,  Masaki Kawano ,  Michiro Komatsubara ,  Yuka Komori ,  Kazuaki Tamura

发明人： Yasuyuki Hayakawa ,  Mitsumasa Kurosawa ,  Masaki Kawano ,  Michiro Komatsubara ,  Yuka Komori ,  Kazuaki Tamura

IPC分类号： H01F1147

CPC分类号： C21D8/1261 ,  C21D8/1233 ,  H01F1/14775

摘要： Non-oriented magnetic steel sheets, which are mainly used as materials for iron cores for use in electric apparatuses, have a low iron loss and a high magnetic flux density at the same time. The non-oriented magnetic steel sheet comprises from about 1.5 to about 8.0 weight % Si, from about 0.005 to about 2.50 weight % Mn, and not more than about 50 ppm each of C, S, N, O, and B, in which a crystal orientation parameter is 0.200 or less. In addition, the average crystal grain diameter is preferably from about 50 to about 500 &mgr;m, and an areal ratio of crystal grains on a surface of the steel sheet is preferably 20% and less, in which crystal plane orientations of the crystal grains are within 15° from the axis. In addition, the non-oriented magnetic steel sheet preferably contains small amounts of elements such as Al, Sb, Ni, Sn, Cu, P, and Cr. The manufacturing method for the non-oriented magnetic steel is also described.

摘要翻译： 主要用作电气设备用铁芯材料的非取向磁钢板同时具有低铁损和高磁通密度。 未取向的磁性钢板包含约1.5至约8.0重量％的Si，约0.005至约2.50重量％的Mn，以及不超过约50ppm的C，S，N，O和B，其中 晶体取向参数为0.200以下。 此外，平均晶粒直径优选为约50〜约500μm，并且钢板表面的晶粒的面积率优选为20％以下，其中晶粒的晶面取向在其内 距离<111>轴为15°。 此外，无取向电磁钢板优选含有少量的元素，例如Al，Sb，Ni，Sn，Cu，P和Cr。 还描述了用于非取向磁钢的制造方法。

公开(公告)号：US06436199B1

公开(公告)日：2002-08-20

申请号：US09649052

申请日：2000-08-29

申请人： Yasuyuki Hayakawa ,  Mitsumasa Kurosawa ,  Masaki Kawano ,  Michiro Komatsubara ,  Yuka Komori ,  Kazuaki Tamura

发明人： Yasuyuki Hayakawa ,  Mitsumasa Kurosawa ,  Masaki Kawano ,  Michiro Komatsubara ,  Yuka Komori ,  Kazuaki Tamura

IPC分类号： H01F104

CPC分类号： C21D8/1261 ,  C21D8/1233 ,  H01F1/14775

摘要： Non-oriented magnetic steel sheets, which are mainly used as materials for iron cores for use in electric apparatuses, have a low iron loss and a high magnetic flux density at the same time. The non-oriented magnetic steel sheet comprises from about 1.5 to about 8.0 weight % Si, from about 0.005 to about 2.50 weight % Mn, and not more than about 50 ppm each of C, S, N, O, and B, in which a crystal orientation parameter is 0.200 or less. In addition, the average crystal grain diameter is preferably from about 50 to about 500 &mgr;m, and an areal ratio of crystal grains on a surface of the steel sheet is preferably 20% and less, in which crystal plane orientations of the crystal grains are within 15° from the axis. In addition, the non-oriented magnetic steel sheet preferably contains small amounts of elements such as Al, Sb, Ni, Sn, Cu, P, and Cr. The manufacturing method for the non-oriented magnetic steel is also described.

摘要翻译： 主要用作电气设备用铁芯材料的非取向磁钢板同时具有低铁损和高磁通密度。 未取向的磁性钢板包含约1.5至约8.0重量％的Si，约0.005至约2.50重量％的Mn，以及不超过约50ppm的C，S，N，O和B，其中 晶体取向参数<＆Ggr;>为0.200或更小。 此外，平均晶粒直径优选为约50〜约500μm，并且钢板表面的晶粒的面积率优选为20％以下，其中晶粒的晶面取向在其内 距离<111>轴为15°。 此外，无取向电磁钢板优选含有少量的元素，例如Al，Sb，Ni，Sn，Cu，P和Cr。 还描述了用于非取向磁钢的制造方法。

公开(公告)号：US06423157B2

公开(公告)日：2002-07-23

申请号：US09800050

申请日：2001-03-05

申请人： Yasuyuki Hayakawa ,  Mitsumasa Kurosawa ,  Michiro Komatsubara

发明人： Yasuyuki Hayakawa ,  Mitsumasa Kurosawa ,  Michiro Komatsubara

IPC分类号： H01F1147

CPC分类号： C21D8/12 ,  C21D8/1272 ,  C21D2281/02 ,  C22C38/02 ,  C22C38/08 ,  C22C38/60

摘要： Grain-oriented magnetic steel sheet made by the method comprising of hot rolling and final finish annealing, wherein (1) the O content in the steel slab is limited to up to about 30 wtppm; (2) for the entire steel sheet including an oxide film before final finish annealing, from among impurities, the Al content is limited to up to about 100 wtppm, and the contents of B, V, Nb, Se, S, and N, to up to about 50 wtppm; and (3) during final finish annealing, the N content in the steel is, at least in the temperature region of from about 850 to 950° C., limited within the range of from about 6 to 80 wtppm.

摘要翻译： 通过热轧和最终成品退火的方法制造的晶粒取向电磁钢板，其中（1）钢坯中的O含量限制在约30重量ppm以下;（2）对于包含氧化物的整个钢板 最终成品退火之前的膜，从杂质中，将Al含量限制在高达约100重量ppm，B，V，Nb，Se，S和N的含量高达约50重量ppm; 和（3）在最终成品退火期间，钢中的N含量至少在约850〜950℃的温度范围内，限制在约6〜80重量ppm的范围内。

公开(公告)号：US06322635B1

公开(公告)日：2001-11-27

申请号：US09427224

申请日：1999-10-26

申请人： Yasuyuki Hayakawa ,  Mitsumasa Kurosawa ,  Michiro Komatsubara

发明人： Yasuyuki Hayakawa ,  Mitsumasa Kurosawa ,  Michiro Komatsubara

IPC分类号： H01F104

CPC分类号： C22C38/06 ,  C21D8/1211 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1266 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04

摘要： Electromagnetic steel sheet from a high-purity steel slab, composed essentially of Si 2.0 to 8.0 wt %, Mn 0.005 to 3.0 wt % and Al 0.0010 to 0.012 wt % with each of Se, S, N and O each not more than 30 ppm.

摘要翻译： 基本上由Si 2.0〜8.0重量％，Mn 0.005〜3.0重量％，Al 0.0010〜0.012重量％的Se，S，N，O组成的高纯度钢板的电磁钢板不大于30ppm 。

公开(公告)号：US5181972A

公开(公告)日：1993-01-26

申请号：US635511

申请日：1991-01-09

申请人： Michiro Komatsubara ,  Mitsumasa Kurosawa ,  Yasuyuki Hayakawa ,  Yoshiaki Iida ,  Toshio Sadayori

发明人： Michiro Komatsubara ,  Mitsumasa Kurosawa ,  Yasuyuki Hayakawa ,  Yoshiaki Iida ,  Toshio Sadayori

IPC分类号： C21D8/12

CPC分类号： C21D8/1233 ,  C21D8/1227 ,  C21D8/125

摘要： The present invention realizes the stable production of grain oriented silicon steel sheets having excellent magnetic properties under high productivity through effectively combining aging treatment with tandem rolling, in which cold rolling is effected until a final thickness is attained. In the final cold rolling step of the production of the grain oriented silicon steel sheets, the tandem rolling is first effected, and then continuous heat treatment is effected, preferably under application of tension.

摘要翻译： PCT No.PCT / JP90 / 00609 Sec。 371日期1991年1月9日 102（e）日期1991年1月9日PCT提交1990年5月15日PCT公布。 出版物WO90 / 14445 日本1990年11月29日。本发明通过有效地将时效处理与串列轧制有机结合，实现了在高生产率下具有优异磁性能的晶粒取向硅钢板的稳定生产，其中进行冷轧直到达到最终厚度。 在制造晶粒取向硅钢板的最终冷轧步骤中，首先进行串联轧制，然后优选在施加张力下进行连续热处理。

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

IPC分类号： C21D8/12 ,  H01F1/18

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。

公开(公告)号：US06444051B2

公开(公告)日：2002-09-03

申请号：US09927030

申请日：2001-08-09

申请人： Michiro Komatsubara ,  Kazuaki Tamura ,  Mitsumasa Kurosawa

发明人： Michiro Komatsubara ,  Kazuaki Tamura ,  Mitsumasa Kurosawa

IPC分类号： H01F1147

CPC分类号： C21D8/12 ,  C21D8/1222 ,  C21D8/1227 ,  C21D8/1233 ,  C21D8/1255 ,  C21D8/1272 ,  C21D8/1288 ,  C21D8/1294 ,  C22C38/04 ,  C22C38/34

摘要： A method of making a grain-oriented electromagnetic steel sheet having a low iron loss and a high magnetic flux density, from a steel slab with 0.03 to 0.095 wt % carbon, about 1.5 to 7.0 wt % Si, about 0.03 to 2.50 wt % manganese, about 0.003 to 0.040 wt % sulfur and/or selenium, about 0.0010 to 0.0070 wt % borbon, about 30 to 120 wtppm nitrogen, about 0.015 wt % or less aluminum, and about 0.010 wt % or less vanadium by subjecting the steel slab to reheating, hot rolling, rapid cooling, cold rolling, primary recrystallization annealing, coating with an annealing separator, final annealing, secondary recrystallization, and coiling.

摘要翻译： 从具有0.03至0.095重量％碳的钢坯，约1.5至7.0重量％的Si，约0.03至2.50重量％的锰制备具有低铁损和高磁通密度的晶粒取向电磁钢板的方法， ，约0.003至0.040重量％的硫和/或硒，约0.0010至0.0070重量百分比的硼硼，约30至120重量ppm的氮，约0.015重量％或更少的铝，以及约0.010重量％或更少的钒。 再加热，热轧，快速冷却，冷轧，一次再结晶退火，用退火分离剂涂布，最终退火，二次再结晶和卷取。

公开(公告)号：USRE39482E1

公开(公告)日：2007-02-06

申请号：US10263573

申请日：2002-10-03

申请人： Yasuyuki Hayakawa ,  Mitsumasa Kurosawa ,  Michiro Komatsubara

发明人： Yasuyuki Hayakawa ,  Mitsumasa Kurosawa ,  Michiro Komatsubara

IPC分类号： H01F1/147

CPC分类号： C21D8/12 ,  C21D8/1272 ,  C21D2281/02 ,  C22C38/02 ,  C22C38/08 ,  C22C38/60

摘要： Grain-oriented magnetic steel sheet made by the method-including hot rolling and final finish annealing, wherein (1) the O content in the steel slab is limited to up to about 30 ppm; (2) for the entire steel sheet having final thickness including an oxide film before final finish annealing, from among impurities, the Al content is limited to up to about 100 wtppm, and the respective contents of B, V, Nb, Se, S, P, and N, to up to about 50 wtppm each; and (3) during final finish annealing, the N content in the steel is, at least in the temperature region of from about 850 to 950° C., limited within the range of from about 6 to 80 wtppm.

摘要翻译： 通过包括热轧和最终成品退火的方法制成的晶粒取向电磁钢板，其中（1）钢坯中的O含量限制在高达约30ppm; （2）对于在最终成品退火前具有氧化膜的最终厚度的整个钢板，从杂质中，Al含量被限制为高达约100重量ppm，并且各自的含量B，V，Nb，Se，S ，<？delete-start id =“DEL-S-00001”date =“20070206”？> P，<？delete-end id =“DEL-S-00001”？>和N，每个高达约50 wtppm ; 和（3）在最终成品退火期间，钢中的N含量至少在约850〜950℃的温度范围内，限制在约6〜80重量ppm的范围内。

公开(公告)号：US06406558B1

公开(公告)日：2002-06-18

申请号：US09703229

申请日：2000-10-31

申请人： Mitsumasa Kurosawa ,  Masaki Kawano ,  Michiro Komatsubara ,  Keiji Sakai ,  Toshiro Fujiyama

发明人： Mitsumasa Kurosawa ,  Masaki Kawano ,  Michiro Komatsubara ,  Keiji Sakai ,  Toshiro Fujiyama

IPC分类号： H01F1147

CPC分类号： C22C38/06 ,  C21D8/1233 ,  C21D8/1266 ,  C21D8/1272 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/16 ,  C22C38/60

摘要： Manufacturing semiprocessed non-oriented magnetic steel sheets, which has superior workability in steps of assembling cores for motors or the like, in which improvement in productivity and higher accuracy of the products can be realized, by hot rolling a steel slab containing about 0.001 to 0.03 wt % C, about 0.1 to 1.0 wt % Si, about 0.01 to 1.0 wt % Al, about 0.05 to 1.0 wt % Mn, and about 0.001 to 0.15 wt % P, cold rolling the hot rolled sheet, continuous annealing the cold rolled sheet, and skin pass rolling the annealed sheet, wherein the average cooling rate in the continuous annealing process is about 10° C./second or more and skin pass rolling is performed at a reduction rate of about 0.5 to 5% within about 20 hours after continuous annealing.

摘要翻译： 制造半加工非取向电磁钢板，其通过热轧含有约0.001〜0.03的钢板，可以实现电机等的组装的步骤中的优异的可加工性，其中可以实现产品的生产率的提高和更高的精度 重量％C，约0.1〜1.0重量％的Si，约0.01〜1.0重量％的Al，约0.05〜1.0重量％的Mn和约0.001〜0.15重量％的P，冷轧热轧板，连续退火冷轧板 ，并且对退火板进行表皮通过轧制，其中连续退火工艺中的平均冷却速度为约10℃/秒或更多，并且在约20小时内以约0.5至5％的还原率进行表皮轧制 连续退火。

公开(公告)号：US06432227B1

公开(公告)日：2002-08-13

申请号：US09970327

申请日：2001-10-03

申请人： Yasuyuki Hayakawa ,  Mitsumasa Kurosawa ,  Michiro Komatsubara

发明人： Yasuyuki Hayakawa ,  Mitsumasa Kurosawa ,  Michiro Komatsubara

IPC分类号： H01F104

CPC分类号： C22C38/06 ,  C21D8/1211 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1266 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04

摘要： Electromagnetic steel sheet from a high-purity steel slab, composed essentially of Si 2.0 to 8.0 wt %, Mn 0.005 to 3.0 wt % and Al 0.0010 to 0.012 wt % with each of Se, S, N and O each not more than 30 ppm.

摘要翻译： 基本上由Si 2.0〜8.0重量％，Mn 0.005〜3.0重量％，Al 0.0010〜0.012重量％的Se，S，N，O组成的高纯度钢板的电磁钢板不大于30ppm 。