公开(公告)号：US20110056592A1

公开(公告)日：2011-03-10

申请号：US12922772

申请日：2009-04-13

申请人： Yoshihiro Arita ,  Hidekuni Murakami ,  Yoshiyuki Ushigami ,  Takeshi Kubota

发明人： Yoshihiro Arita ,  Hidekuni Murakami ,  Yoshiyuki Ushigami ,  Takeshi Kubota

IPC分类号： C22C38/16 ,  C21D11/00

CPC分类号： H01F1/16 ,  C21D8/1222 ,  C21D8/1272 ,  C21D2201/05 ,  C21D2211/004 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  H01F1/147

摘要： A high-strength non-oriented electrical steel sheet contains: by mass %, C: not less than 0.002% nor more than 0.05%; Si: not less than 2.0% nor more than 4.0%; Mn: not less than 0.05% nor more than 1.0%; N: not less than 0.002% nor more than 0.05%; and Cu: not less than 0.5% nor more than 3.0%. An Al content is 3.0% or less, and when a Nb content (%) is set to [Nb], a Zr content (%) is set to [Zr], a Ti content (%) is set to [Ti], a V content (%) is set to [V], a C content (%) is set to [C], and an N content (%) is set to [N], Formula (1) and Formula (2) are satisfied. A balance is composed of Fe and inevitable impurities, a recrystallization area ratio is 50% or more, yield stress at a tensile test is 700 MPa or more, fracture elongation is 10% or more, and an eddy current loss We10/400 (W/kg) satisfies Formula (3) in relation to a sheet thickness t (mm) of the steel sheet. 2.0×10−4≦[Nb]/93+[Zr]/91+[Ti]/48+[V]/51   (1) 1.0×10−3≦[C]/12+[N]/14−([Nb]/93+[Zr]/91+[Ti]/48+[V]/51)≦3.0×10−3   (2) We10/400≦70×t2   (3)

摘要翻译： 高强度无取向电工钢板，按质量％计，C：0.002％以上0.05％以下， Si：不小于2.0％，不大于4.0％; Mn：不小于0.05％，不大于1.0％; N：不小于0.002％，不大于0.05％; 和Cu：不小于0.5％，不大于3.0％。 Al含量为3.0％以下，Nb含量（％）为[Nb]时，将Zr含量（％）设定为[Zr]，将Ti含量（％）设定为[Ti] 将V含量（％）设定为[V]，将C含量（％）设定为[C]，将N含量（％）设定为[N]，式（1）和式（2） 满意。 余量由Fe和不可避免的杂质构成，再结晶面积率为50％以上，拉伸试验时的屈服应力为700MPa以上，断裂伸长率为10％以上，涡流损耗为We10 / 400（W / kg）相对于钢板的板厚t（mm）满足公式（3）。 2.0×10-4＆nlE; [Nb] / 93 + [Zr] / 91 + [Ti] / 48 + [V] / 51（1）1.0×10-3＆nlE; [C] / 12 + [N] （[Nb] / 93 + [Zr] / 91 + [Ti] / 48 + [V] / 51）＆nlE; 3.0×10-3（2）We10 / 400＆

公开(公告)号：US20090301609A1

公开(公告)日：2009-12-10

申请号：US12309622

申请日：2007-06-15

申请人： Yoshihiro Arita ,  Hidekuni Murakami ,  Yutaka Matsumoto ,  Saori Haranaka ,  Takeshi Kubota

发明人： Yoshihiro Arita ,  Hidekuni Murakami ,  Yutaka Matsumoto ,  Saori Haranaka ,  Takeshi Kubota

IPC分类号： C22C38/02

CPC分类号： C22C38/02 ,  C21D8/12 ,  C21D8/1272 ,  C21D9/46 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  H01F1/14716 ,  H01F1/14791

摘要： The invention provides a non-oriented electrical steel sheet excellent in yield strength for use as an iron core material for high rpm motors that does not sacrifice yield or productivity in motor core punching or steel sheet production, which non-oriented electrical steel sheet is given a chemical composition of, in mass %, C: 0.01 to 0.05%, Si: 2.0 to 4.0%, Mn: 0.05 to 0.5%, Al: 3.0% or less and Nb: 0.01 to 0.05%, and optionally Ni at a preferable content of more than 0.5% and less than 3.0%, the balance being Fe and unavoidable impurities, Mn and C contents expressed in mass % are made to satisfy Mn≦0.6−10×C, recrystallized portion area fraction is made 50% or greater, yield strength in tensile testing is made 650 MPa or greater, and average-grain diameter viewed in steel sheet cross-section is made 40 μm or less, and electrical steel sheet production is conducted using a hot-rolled sheet whose transition temperature in impact testing is 70° C. or less.

摘要翻译： 本发明提供一种用于高转速电机的铁心材料的屈服强度优异的无取向电工钢板，其不牺牲电动机芯冲孔或钢板生产中的产量或生产率，该方向电磁钢板被给予 以质量％计含有C：0.01〜0.05％，Si：2.0〜4.0％，Mn：0.05〜0.5％，Al：3.0％以下，Nb：0.01〜0.05％的化学成分， 含量超过0.5％且小于3.0％，余量为Fe和不可避免的杂质，以质量％表示的Mn和C含量满足Mn <= 0.6-10×C，再结晶部分面积分数为50％以上， 拉伸试验的屈服强度为650MPa以上，钢板截面的平均粒径为40μm以下，利用冲击试验中的转变温度的热轧板进行电工钢板的制造 为70℃以下。

公开(公告)号：US08557058B2

公开(公告)日：2013-10-15

申请号：US12309622

申请日：2007-06-15

申请人： Yoshihiro Arita ,  Hidekuni Murakami ,  Yutaka Matsumoto ,  Saori Haranaka ,  Takeshi Kubota

发明人： Yoshihiro Arita ,  Hidekuni Murakami ,  Yutaka Matsumoto ,  Saori Haranaka ,  Takeshi Kubota

IPC分类号： H01F3/00 ,  H01F1/04 ,  C22C38/00

CPC分类号： C22C38/02 ,  C21D8/12 ,  C21D8/1272 ,  C21D9/46 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  H01F1/14716 ,  H01F1/14791

摘要： The invention provides a non-oriented electrical steel sheet excellent in yield strength for use as an iron core material for high rpm motors that does not sacrifice yield or productivity in motor core punching or steel sheet production, which non-oriented electrical steel sheet is given a chemical composition of, in mass %, C: 0.01 to 0.05%, Si: 2.0 to 4.0%, Mn: 0.05 to 0.5%, Al: 3.0% or less and Nb: 0.01 to 0.05%, and optionally Ni at a preferable content of more than 0.5% and less than 3.0%, the balance being Fe and unavoidable impurities, Mn and C contents expressed in mass % are made to satisfy Mn≦0.6-10×C, recrystallized portion area fraction is made 50% or greater, yield strength in tensile testing is made 650 MPa or greater, and average-grain diameter viewed in steel sheet cross-section is made 40 μm or less, and electrical steel sheet production is conducted using a hot-rolled sheet whose transition temperature in impact testing is 70° C. or less.

摘要翻译： 本发明提供一种用于高转速电机的铁心材料的屈服强度优异的无取向电工钢板，其不牺牲电动机芯冲孔或钢板生产中的产量或生产率，该方向电磁钢板被给予 以质量％计含有C：0.01〜0.05％，Si：2.0〜4.0％，Mn：0.05〜0.5％，Al：3.0％以下，Nb：0.01〜0.05％的化学成分， 含量超过0.5％且小于3.0％，余量为Fe和不可避免的杂质，以质量％表示的Mn和C含量满足Mn≤0.0〜10-10℃，再结晶部分面积分数为50％以上 拉伸试验的屈服强度为650MPa以上，钢板截面的平均粒径为40μm以下，使用冲击转变温度的热轧板进行电工钢板的制造 测试为70℃或更低。

公开(公告)号：US20110108307A1

公开(公告)日：2011-05-12

申请号：US13001240

申请日：2009-07-15

申请人： Yoshihiro Arita ,  Yoshiyuki Ushigami ,  Shigeru Hirano ,  Hiroyasu Fujii ,  Toshinao Yamaguchi ,  Isoa Koike

发明人： Yoshihiro Arita ,  Yoshiyuki Ushigami ,  Shigeru Hirano ,  Hiroyasu Fujii ,  Toshinao Yamaguchi ,  Isoa Koike

IPC分类号： H01B7/02 ,  B32B15/01 ,  B05D5/12

CPC分类号： C23C30/00 ,  B32B15/015 ,  C21D8/12 ,  C22C19/03 ,  C22C38/02 ,  C22C38/06 ,  C22C38/40 ,  C22F1/10 ,  C23C28/021 ,  H01F1/18 ,  Y10T428/12931

摘要： A non-oriented electrical steel sheet is provided with a base material and an Fe—Ni alloy film formed on at least one surface of the base material. The Fe—Ni alloy film contains, by mass %, Fe: 10% to 40% and Ni: 60% to 90%, and has a thickness of 0.1 μm or more are provided.

摘要翻译： 无取向电工钢板设置有形成在基材的至少一个表面上的基材和Fe-Ni合金膜。 Fe-Ni合金膜以质量％计含有Fe：10〜40％，Ni：60〜90％，厚度为0.1μm以上。

公开(公告)号：US20100279142A1

公开(公告)日：2010-11-04

申请号：US12809913

申请日：2009-01-06

申请人： Yoshiyuki Ushigami ,  Shigeru Hirano ,  Hiroyasu Fujii ,  Yoshihiro Arita ,  Toshinao Yamaguchi ,  Isao Koike

发明人： Yoshiyuki Ushigami ,  Shigeru Hirano ,  Hiroyasu Fujii ,  Yoshihiro Arita ,  Toshinao Yamaguchi ,  Isao Koike

IPC分类号： B32B3/00

CPC分类号： C23C30/00 ,  B32B15/011 ,  B32B15/015 ,  C22C38/08 ,  Y10T428/12472

摘要： The present invention enables magnetic domain control by the method of forming a magnetic coating layer of an Ni—Fe alloy comprised of Fe: 10 to 50 mass % and Ni: 90 to 50 mass % on the surface of grain-oriented electrical steel sheet having mainly {110} orientation texture so that even if annealing after core formation, the iron loss improving effect will not be lost and the magnetic flux density will not be greatly reduced.

摘要翻译： 本发明通过形成由Fe：10〜50质量％，Ni：90〜50质量％组成的Ni-Fe合金的磁性涂层的方法进行磁畴控制，所述晶粒取向电工钢板的表面具有 主要是{110} <001>取向纹理，使得即使在芯形成之后进行退火，铁损改善效果也不会损失，并且磁通密度将不会大大降低。

公开(公告)号：US09362032B2

公开(公告)日：2016-06-07

申请号：US14111245

申请日：2012-04-11

申请人： Yoshihiro Arita ,  Masahiro Fujikura ,  Hidekuni Murakami

发明人： Yoshihiro Arita ,  Masahiro Fujikura ,  Hidekuni Murakami

IPC分类号： C22C38/02 ,  C22C38/04 ,  H01F1/01 ,  C22C38/06 ,  C22C38/16 ,  H01F1/16 ,  C22C38/00 ,  C21D8/12

CPC分类号： H01F1/01 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1272 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16 ,  H01F1/16

摘要： A high-strength non-oriented electrical steel sheet contains: in mass %, C: 0.010% or less; Si: not less than 2.0% nor more than 4.0%; Mn: not less than 0.05% nor more than 0.50%; Al: not less than 0.2% nor more than 3.0%; N: 0.005% or less; S: not less than 0.005% nor more than 0.030%; and Cu: not less than 0.5% nor more than 3.0%, a balance being composed of Fe and inevitable impurities. An expression (1) is established where a Mn content is represented as [Mn] and a S content is represented as [S], and not less than 1.0×104 pieces nor more than 1.0×106 pieces of sulfide having a circle-equivalent diameter of not less than 0.1 μm nor more than 1.0 μm are contained per 1 mm2 10≦[Mn]/[S]≦50  (1).

摘要翻译： 高强度无取向电工钢板，以质量％计含有C：0.010％以下， Si：不小于2.0％，不大于4.0％; Mn：不小于0.05％，不大于0.50％; Al：不小于0.2％，不大于3.0％; N：0.005％以下; S：不小于0.005％，不大于0.030％; 和Cu：不小于0.5％，不大于3.0％，余量由Fe和不可避免的杂质组成。 建立表达式（1），其中Mn含量表示为[Mn]，S含量表示为[S]，并且不小于1.0×10 4个或不大于1.0×10 6个具有圆当量的硫化物 每1mm 2 10 [n]; [Mn] / [S]＆nlE; 50（1）中含有不小于0.1μm，不大于1.0μm的直径。

公开(公告)号：US20140030135A1

公开(公告)日：2014-01-30

申请号：US14111245

申请日：2012-04-11

申请人： Yoshihiro Arita ,  Masahiro Fujikura ,  Hidekuni Murakami

发明人： Yoshihiro Arita ,  Masahiro Fujikura ,  Hidekuni Murakami

IPC分类号： H01F1/01

CPC分类号： H01F1/01 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1272 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16 ,  H01F1/16

摘要： A high-strength non-oriented electrical steel sheet contains: in mass %, C: 0.010% or less; Si: not less than 2.0% nor more than 4.0%; Mn: not less than 0.05% nor more than 0.50%; Al: not less than 0.2% nor more than 3.0%; N: 0.005% or less; S: not less than 0.005% nor more than 0.030%; and Cu: not less than 0.5% nor more than 3.0%, a balance being composed of Fe and inevitable impurities. An expression (1) is established where a Mn content is represented as [Mn] and a S content is represented as [S], and not less than 1.0×104 pieces nor more than 1.0×106 pieces of sulfide having a circle-equivalent diameter of not less than 0.1 μm nor more than 1.0 μm are contained per 1 mm2. 10≦[Mn]/[S]≦50   (1)

摘要翻译： 高强度无取向电工钢板，以质量％计含有C：0.010％以下， Si：不小于2.0％，不大于4.0％; Mn：不小于0.05％，不大于0.50％; Al：不小于0.2％，不大于3.0％; N：0.005％以下; S：不小于0.005％，不大于0.030％; 和Cu：不小于0.5％，不大于3.0％，余量由Fe和不可避免的杂质组成。 建立表达式（1），其中Mn含量表示为[Mn]，S含量表示为[S]，并且不小于1.0×10 4个或不大于1.0×10 6个具有圆当量的硫化物 每1mm 2含有不小于0.1μm，不大于1.0μm的直径。 10 [Mn] / [S] @ 50（1）

公开(公告)号：US07470333B2

公开(公告)日：2008-12-30

申请号：US10556148

申请日：2004-04-28

申请人： Wataru Ohashi ,  Akihito Kiyose ,  Masafumi Miyazaki ,  Takeshi Kubota ,  Yousuke Kurosaki ,  Yoshihiro Arita ,  Ken-ichiro Miyamoto ,  Takashi Sawai

发明人： Wataru Ohashi ,  Akihito Kiyose ,  Masafumi Miyazaki ,  Takeshi Kubota ,  Yousuke Kurosaki ,  Yoshihiro Arita ,  Ken-ichiro Miyamoto ,  Takashi Sawai

IPC分类号： H01F1/147

CPC分类号： C21D8/1205 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  H01F1/14775 ,  H02K1/02

摘要： A non-oriented electrical steel sheet is characterized in that the number density of inclusions with an equivalent volume diameter of less than 100 nm contained in the steel sheet is 1×1010 [/mm3] or less, and that the steel sheet contains, by mass %, C: up to 0.01%, Si: 0.1% to 7.0%. Al: 0.1% to 3.0%. Mn: 0.1% to 2.0%, REM: 0.0003% to 0.05%. Ti: up to 0.02%. S: up to 0.005%. and N: up to 0.005%. the balance Fe and inevitable impurities and the mass % of Al represented by [Al] and the mass % of Ti represented by [Ti] satisfy the equation log([Ti]×[N])−1.19×log([Al]×[N])+1.84>0 . . . (1).

摘要翻译： 无取向电工钢板的特征在于，钢板中所含的等体积直径小于100nm的夹杂物的数密度为1×10 10 [/ mm 3]以下，钢板以质量％计， ，C：0.01％以下，Si：0.1〜7.0％。 Al：0.1〜3.0％。 Mn：0.1〜2.0％，REM：0.0003〜0.05％。 Ti：最高0.02％。 S：高达0.005％。 和N：高达0.005％。 由[Al]表示的Fe和不可避免的杂质和Al的质量％以及由[Ti]表示的Ti的质量％满足等式log（[Ti] x [N]） - 1.19xlog（[Al] x [ N]）+ 1.84> 0。 。 。 （1）。

公开(公告)号：US20060243351A1

公开(公告)日：2006-11-02

申请号：US10556148

申请日：2004-04-28

申请人： Wataru Ohashi ,  Akihito Kiyose ,  Masafumi Miyazaki ,  Takeshi Kubota ,  Yousuke Kurosaki ,  Yoshihiro Arita ,  Ken-ichiro Miyamoto ,  Takashi Sawai

发明人： Wataru Ohashi ,  Akihito Kiyose ,  Masafumi Miyazaki ,  Takeshi Kubota ,  Yousuke Kurosaki ,  Yoshihiro Arita ,  Ken-ichiro Miyamoto ,  Takashi Sawai

IPC分类号： H01F1/16

CPC分类号： C21D8/1205 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  H01F1/14775 ,  H02K1/02

摘要： A non-oriented electrical steel sheet is characterized in that the number density of inclusions with an equivalent volume diameter of less than 100 nm contained in the steel sheet is 1×1010 [/mm3] or less, and that the steel sheet contains, by mass%, C: up to 0.01%, Si: 0.1% to 7.0%, Al: 0.1% to 3.0%, Mn: 0.1% to 2.0%, REM: 0.0003% to 0.05%, Ti: up to 0.02%, S: up to 0.005%, and N: up to 0.005%, the balance Fe and inevitable impurities and the mass % of Al represented by [All and the mass % of Ti represented by [Ti] satisfy the equation loq([Ti]×[N])−1.19×loq([Al]×[N])+1.84>0 . . . (1).

摘要翻译： 无取向电工钢板的特征在于，钢板中所含的等体积直径小于100nm的夹杂物的数量密度为1×10 6 [/ mm 3 / SUP>]以下，钢板以质量％计含有C：0.01％以下，Si：0.1〜7.0％，Al：0.1〜3.0％，Mn：0.1〜2.0％，REM： 0.0003％〜0.05％，Ti：0.02％以下，S：0.005％以下，N：0.005％以下，余量为Fe和不可避免的杂质，Al的质量％为[全部和质量％Ti 由[Ti]表示，满足方程式loq（[Ti] x [N]） - 1.19xloq（[Al] x [N]）+ 1.84> 0。 。 。 （1）。

公开(公告)号：US07214277B2

公开(公告)日：2007-05-08

申请号：US10819939

申请日：2004-04-08

申请人： Yousuke Kurosaki ,  Takeshi Kubota ,  Hideaki Yamamura ,  Takashi Arai ,  Eiichiro Ishimaru ,  Yoshihiro Arita ,  Isao Suichi ,  Kenji Kosuge

发明人： Yousuke Kurosaki ,  Takeshi Kubota ,  Hideaki Yamamura ,  Takashi Arai ,  Eiichiro Ishimaru ,  Yoshihiro Arita ,  Isao Suichi ,  Kenji Kosuge

IPC分类号： H01F1/16 ,  H01F1/147

CPC分类号： C21D8/1233 ,  B22D11/06 ,  C21D8/1211 ,  C21D8/1272 ,  C21D8/1283

摘要： A quench solidification method, wherein a steel cast strip having a mean grain size 50 μm or more is prepared and then the steel cast strip is rolled to produce a non-oriented electrical steel sheet having high magnetic flux density in both L and C directions. However the magnetic flux density reduces when the cold reduction rate exceeds 70%. To avoid this problem the non-oriented electrical steel sheet is manufactured with a ratio of at least 4 of the integrated intensity of the {100} plane for a given sample of steel to the integrated intensity of {100} plane for a “random” sample in which crystal grains have random orientations; and a cold reduction rate of the cold-rolling is between 70% and 85%. The superheating degree of the molten steel can be 70° C. or more.

摘要翻译： 淬火固化方法，其中制备平均粒径为50μm或更大的钢铸钢带，然后轧制钢铸带，以在L和C方向上制造具有高磁通密度的无取向电工钢板。 然而，当冷压缩率超过70％时，磁通密度降低。 为了避免这个问题，对于给定的钢样品，{100}平面的积分强度至少为4的非取向电工钢板与“随机”的{100}平面的积分强度的比率制造， 晶粒具有随机取向的样品; 冷轧的冷轧速度为70％〜85％。 钢水的过热度可以为70℃以上。