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.

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。

公开(公告)号：US20130306200A1

公开(公告)日：2013-11-21

申请号：US13981955

申请日：2011-02-24

申请人： Masaaki Kohno ,  Yoshiaki Zaizen ,  Yoshihiko Oda ,  Akira Fujita

发明人： Masaaki Kohno ,  Yoshiaki Zaizen ,  Yoshihiko Oda ,  Akira Fujita

IPC分类号： C22C38/60 ,  C22C38/16 ,  C22C38/14 ,  C22C38/00 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C21D8/12 ,  C22C38/10

CPC分类号： C22C38/10 ,  C21D8/12 ,  C21D8/1227 ,  C21D8/1266 ,  C21D8/1272 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/14 ,  C22C38/16 ,  C22C38/60 ,  H01F1/16

摘要： The present invention provides a non-oriented electrical steel sheet at low cost that has excellent magnetic properties and mechanical properties as well as excellent quality of steel sheet. The non-oriented electrical steel sheet has a chemical composition containing, by mass %, Si: 5.0% or less, Mn: 2.0% or less, Al: 2.0% or less, and P: 0.05% or less, in a range satisfying formula (1), and furthermore, C: 0.008% or more and 0.040% or less; N: 0.003% or less, and Ti: 0.04% or less, in a range satisfying formula (2), with the balance composed of Fe and incidental impurities: 300≦85[Si %]+16[Mn %]+40[Al %]+490[P %]≦430  (1) 0.008≦Ti*

摘要翻译： 本发明以低成本提供了具有优异的磁性能和机械性能以及优异的钢板质量的无取向电工钢板。 无方向性电磁钢板的化学组成为：以质量％计含有Si：5.0％以下，Mn：2.0％以下，Al：2.0％以下，P：0.05％以下，满足 式（1），并且C：0.008％以上且0.040％以下; N：0.003％以下，Ti：0.04％以下，余量由Fe和杂质构成：300〜85 [Si％] +16 [Mn％] + 40 [ Al％] + 490 [P％] @ 430（1）0.008 @ Ti * <1.2 [C％]（2），其中Ti * = Ti-3.4 [N％]。

公开(公告)号：US20130146187A1

公开(公告)日：2013-06-13

申请号：US13812430

申请日：2011-08-25

申请人： Yoshiaki Zaizen ,  Yoshihiko Oda ,  Masaaki Kohno

发明人： Yoshiaki Zaizen ,  Yoshihiko Oda ,  Masaaki Kohno

IPC分类号： C21D8/02

CPC分类号： C21D8/0205 ,  C21D8/12 ,  C21D8/1244 ,  C21D8/1255 ,  C21D8/1272 ,  C21D2201/05 ,  C22C1/02 ,  C22C38/00

摘要： Disclosed is a method for producing a non-oriented magnetic steel sheet, wherein a steel slab that consists of 0.01-0.1 mass % of C, 4 mass % or less of Si, 0.05-3 mass % of Mn, 3 mass % or less of Al, 0.005 mass % or less of S, 0.005 mass % or less of N and the balance made up of Fe and unavoidable impurities is subjected to hot rolling, cold rolling and final annealing. By carrying out the final annealing, while setting the average heating rate during the heating to 100° C./sec or more and setting the soaking temperature within the temperature range of 750-1100° C., a non-oriented magnetic steel sheet that has extremely increased magnetic flux density in the rolling direction of the steel sheet is advantageously produced.

摘要翻译： 本发明提供一种无取向磁钢板的制造方法，其特征在于，钢板由C：0.01-0.1质量％，Si 4质量％以下，Mn：0.05〜3质量％，3质量％以下 的Al，0.005质量％以下的S，0.005质量％以下的N，余量由Fe和不可避免的杂质构成，进行热轧，冷轧，最终退火。 通过进行最终退火，在将加热时的平均加热速度设定为100℃/秒以上，将均热温度设定在750〜1100℃的温度范围内的非取向磁钢板 钢板的轧制方向的磁通密度极大地提高。

公开(公告)号：US06217679B1

公开(公告)日：2001-04-17

申请号：US09194129

申请日：1998-11-23

申请人： Masaaki Kohno ,  Kunio Fukuda ,  Kazuhide Ishii ,  Susumu Satoh ,  Hiroshi Yaginuma ,  Takumi Ujiro

发明人： Masaaki Kohno ,  Kunio Fukuda ,  Kazuhide Ishii ,  Susumu Satoh ,  Hiroshi Yaginuma ,  Takumi Ujiro

IPC分类号： C21D802

CPC分类号： C21D8/0205 ,  C21D8/0226 ,  C21D8/0278

摘要： The invention provides hot-rolled steel strips which, after having been acid-pickled, can be directly used. The strips have no Cr-decreasing layer and no shot blasted marks on their surface and have good corrosion resistance. The invention also provides a technique of efficiently producing the hot-rolled steel strips. A steel slab having a Cr content of from 6.0 to 25.0 wt. % is hot-rolled, then coiled at a temperature not higher than 700° C., then optionally quenched in water immediately after the coiling, then annealing in a reducing atmosphere, and thereafter acid-pickled in a solution of nitric acid/hydrochloric acid.

摘要翻译： 本发明提供了可以直接使用酸洗后的热轧钢带。 带材没有减薄层，表面没有喷丸痕迹，具有良好的耐腐蚀性。 本发明还提供了一种有效地生产热轧钢带的技术。 Cr含量为6.0〜25.0重量％的钢坯 ％热轧，然后在不高于700℃的温度下卷绕，然后在卷取后立即在水中骤冷，然后在还原气氛中退火，然后在硝酸/盐酸溶液中酸洗 。

公开(公告)号：US5476554A

公开(公告)日：1995-12-19

申请号：US246992

申请日：1994-05-20

申请人： Kazuhide Ishii ,  Masaaki Kohno

发明人： Kazuhide Ishii ,  Masaaki Kohno

IPC分类号： C22C38/28 ,  F01N3/28 ,  C21D9/00 ,  C22C38/06

CPC分类号： C22C38/28 ,  F01N3/281 ,  F01N2330/04

摘要： Fe--Cr--Al alloy foil having high oxidation resistance for a substrate catalytic converter. The alloy foil contains about: C: 0.02 wt. % or less, N: 0.02 wt. % or less, Si: 1.0 wt. % or less, Mn: 1.0 wt. % or less, Cr: from 15 to 26 wt. %, Al: from 4.5 to 8.0 wt. %, Sm: from 0.05 to 0.30 wt. %, Zr: from 0.01 to 0.10 wt. %, and Hf: 0.005 wt. % to 0.10 wt. %, the balance consisting of Fe and incidental impurities.

摘要翻译： 对于基板催化转化器具有高抗氧化性的Fe-Cr-Al合金箔。 合金箔包含约：C：0.02重量％ ％以下，N：0.02重量％ ％以下，Si：1.0重量％ ％以下，Mn：1.0重量％ ％以下，Cr：15〜26wt。 ％，Al：4.5〜8.0wt。 ％，Sm：0.05〜0.30重量％ ％，Zr：0.01〜0.10wt。 ％，Hf：0.005wt。 ％至0.10wt ％，余量由Fe和杂质构成。

公开(公告)号：US07513959B2

公开(公告)日：2009-04-07

申请号：US10537194

申请日：2003-12-03

申请人： Minoru Takashima ,  Masaaki Kohno ,  Katsumi Yamada ,  Masaki Kawano ,  Kaoru Sato

发明人： Minoru Takashima ,  Masaaki Kohno ,  Katsumi Yamada ,  Masaki Kawano ,  Kaoru Sato

IPC分类号： H01F1/147

CPC分类号： H01F1/16 ,  C21D8/1272 ,  C22C38/004 ,  C22C38/02 ,  C22C38/06 ,  C22C38/08 ,  C22C38/16

摘要： When a non-oriented electrical steel sheet is manufactured, simultaneously having superior magnetic properties and high strengths, a composition containing 0.02% or less of C, 4.5% or less of Si, 5.0% or less (including 0) of Ni, and 0.2% to 4.0% of Cu is used, and a solute Cu is allowed to appropriately remain in finish annealing. In the steel sheet thus obtained, finely shaped Cu is precipitated by aging treatment, and while the magnetic properties are not degraded, the yield stress is increased to not less than CYS (MPa) represented by the following formula: note CYS=180+5,600[% C]+95[% Si]+50[% Mn]+37[% Al]+435[% P]+25[% Ni]+22d−1/2 where d is an average grain diameter (mm) of crystal grains.

摘要翻译： 当制造同时具有优异的磁特性和高强度的无取向电工钢板时，含有C：0.02％以下，Si：4.5％以下，5.0％以下（含0）Ni，0.2 使用％〜4.0％的Cu，使溶质Cu适当地保持在最终退火中。 在这样得到的钢板中，通过时效处理使细小的Cu析出，而在磁特性不降低的同时，屈服应力提高至不低于下式表示的CYS（MPa）：< 公式description =“In-line Formulas”end =“lead”？> note <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In CYC = 180 + 5600 [％C] +95 [％Si] +50 [％Mn] +37 [％Al] +435 [％P] +25 [％Ni] + 22d-1/2 <？in-line-formula description =“In-line Formulas”end =“tail”？>其中d是晶粒的平均粒径（mm）。

公开(公告)号：US5653825A

公开(公告)日：1997-08-05

申请号：US667645

申请日：1996-06-21

申请人： Masaaki Kohno ,  Atsushi Miyazaki ,  Susumu Satoh ,  Koji Yamato

发明人： Masaaki Kohno ,  Atsushi Miyazaki ,  Susumu Satoh ,  Koji Yamato

IPC分类号： C22C38/00 ,  C22C38/32 ,  C22C38/34

CPC分类号： C22C38/32

摘要： A ferrite-type hot-rolled stainless steel sheet is composed of a selected class of elements in specified amounts. Even when cold rolling and its subsequent process steps are omitted, the hot-rolled steel sheet is sufficiently workable and excellent in surface roughening resistance and high-temperature fatigue properties after working. The steel sheet is easy to produce with a wide range of annealing temperatures.

摘要翻译： 铁素体型热轧不锈钢板由选定种类的元素组成。 即使省略冷轧及其后续的工序，热轧钢板也可以充分地进行加工，表面粗糙化和加工后的耐高温疲劳特性也好。 钢板易于生产，具有广泛的退火温度。

公开(公告)号：US20100233484A1

公开(公告)日：2010-09-16

申请号：US12159276

申请日：2006-12-26

申请人： Tomofumi Shigekuni ,  Kazumichi Sashi ,  Masaaki Kohno ,  Yuka Komori

发明人： Tomofumi Shigekuni ,  Kazumichi Sashi ,  Masaaki Kohno ,  Yuka Komori

IPC分类号： B32B15/08 ,  B32B15/092 ,  B32B15/088 ,  B32B15/09 ,  B32B15/095 ,  B32B9/04 ,  B05D3/02

CPC分类号： C23C26/00 ,  B05D3/0254 ,  B05D7/14 ,  B05D2202/10 ,  B05D2601/20 ,  B05D2701/10 ,  C09D5/08 ,  C09D5/084 ,  C09D183/10 ,  C21D8/1283 ,  C21D9/46 ,  C23C30/00 ,  H01F1/18 ,  Y10T428/31507 ,  Y10T428/31529 ,  Y10T428/31562 ,  Y10T428/31565 ,  Y10T428/31587 ,  Y10T428/31605 ,  Y10T428/31663

摘要： An electrical steel sheet has an insulation coating having excellent corrosion resistance and punchability even without containing chromium and is prepared by applying a coating liquid on the surface of an electrical steel sheet, followed by baking the applied coating liquid, which coating liquid contains 100 parts by weight of polysiloxane polymer prepared by copolymerizing polysiloxane with one or more resins selected from acrylic resin, styrene resin, vinyl acetate resin, polyester resin, urethane resin, polyethylene resin, polypropylene resin, polyamide resin, polycarbonate resin, phenol resin, alkyd resin, and epoxy resin, and 1 to 50 parts by weigh of one or more compounds selected from melamine, isocyanate, silane coupling agent, and oxazoline, as a cross-linking agent.

摘要翻译： 电动钢板具有即使不含铬也具有优异的耐腐蚀性和冲压性的绝缘层，并且通过在电工钢板的表面上涂布涂布液，然后将涂布液包含100份 通过将聚硅氧烷与选自丙烯酸树脂，苯乙烯树脂，乙酸乙烯酯树脂，聚酯树脂，聚氨酯树脂，聚乙烯树脂，聚丙烯树脂，聚酰胺树脂，聚碳酸酯树脂，酚醛树脂，醇酸树脂和聚碳酸酯树脂中的一种或多种树脂共聚制备的聚硅氧烷聚合物的重量 环氧树脂和1至50份重量的一种或多种选自三聚氰胺，异氰酸酯，硅烷偶联剂和恶唑啉的化合物作为交联剂。

公开(公告)号：US07465364B2

公开(公告)日：2008-12-16

申请号：US10538501

申请日：2003-12-18

申请人： Takeshi Omura ,  Masaaki Kohno ,  Masaki Kawano

发明人： Takeshi Omura ,  Masaaki Kohno ,  Masaki Kawano

IPC分类号： H01F1/16

CPC分类号： C21D1/76 ,  C22C38/004 ,  C22C38/008 ,  C22C38/06 ,  C22C38/34 ,  C22C38/60 ,  H01F1/14716

摘要： An Fe—Cr—Si based non-oriented electrical steel sheet contains 2.5% to 10% by mass of Si, 1.5% to 20% by mass of Cr, 0.006% by mass or less of C, 0.002% by mass or less of N, 0.005% by mass or less of S, 0.005% by mass or less of Ti, 0.005% by mass or less of Nb, and as necessary, 0.1% to 2% by mass of Al and at least one of 0.005% to 1% by mass of Sb and 0.005% to 1% by mass of Sn, and the balance being Fe and incidental impurities, wherein the electrical resistivity of the steel is 60 μΩcm or more, and the number of nitrides containing chromium per mm2 in the interior of the steel sheet is 2,500 or less. Consequently, the problem that high electrical resistance resulting from the high Si content and high Cr content is not satisfactorily utilized is advantageously solved, and it is possible to provide a non-oriented electrical steel sheet having excellent magnetic properties in the high-frequency range, in particular, in a frequency range of 1 kHz or more.

摘要翻译： Fe-Cr-Si系非定向电工钢板含有2.5质量％〜10质量％的Si，Cr：1.5〜20质量％，C：0.006质量％以下，C：0.002质量％ N，0.005质量％以下的S，0.005质量％以下的Ti，0.005质量％以下的Nb，根据需要，0.1质量％〜2质量％的Al和0.005质量％以下的至少一种 Sb为1质量％，Sn为0.005质量％〜1质量％，余量为Fe和偶然杂质，其中钢的电阻率为60微克以上，并且含有铬的氮化物数为 钢板内部为2500以下。 因此，有利地解决了由高Si含量和高Cr含量导致的高电阻不能令人满意地解决的问题，并且可以提供在高频范围内具有优异磁性的无取向电工钢板， 特别是在1kHz以上的频率范围内。