公开(公告)号：WO2016067568A8

公开(公告)日：2017-03-02

申请号：PCT/JP2015005313

申请日：2015-10-21

申请人： JFE STEEL CORP

发明人： OKUBO TOMOYUKI ,  ODA YOSHIHIKO ,  NAKANISHI TADASHI

IPC分类号： C22C38/00 ,  C21D8/12 ,  C21D9/46 ,  C22C38/60 ,  H01F1/16

CPC分类号： C21D9/46 ,  C21D6/005 ,  C21D6/008 ,  C21D8/005 ,  C21D8/12 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1266 ,  C21D8/1272 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16 ,  C22C38/60 ,  C22C2202/02 ,  H01F1/16

摘要： A non-oriented electrical steel sheet having low iron loss and high magnetic characteristics even in finish annealing at high temperature is provided by using a steel (low-aluminum steel) containing, in mass%, 0.005% or less of C, 1.0-4.5% of Si, 0.02-2.0% of Mn, 0.001% or less of Sol.Al, 0.2% or less of P, 0.0010% or less of S+Se, 0.005% or less of N, 0.005% or less of O, 0.02-0.30% of Cu, and the remainder of Fe and other inevitable impurities.

摘要翻译： 通过使用质量％0.005％以下的C，1.0〜4.5的钢（低铝钢），提供即使在高温下进行最终退火也具有低铁损和高磁特性的无方向性电磁钢板 的Si％，Mn：0.02〜2.0％，Sol.Al：0.001％以下，P：0.2％以下，S + Se：0.0010％以下，N：0.005％以下，O：0.005％ 0.02-0.30％的Cu，剩余的Fe和其他不可避免的杂质。

公开(公告)号：WO2014061246A8

公开(公告)日：2015-02-26

申请号：PCT/JP2013006076

申请日：2013-10-11

申请人： JFE STEEL CORP

发明人： TODA HIROAKI ,  ZAIZEN YOSHIAKI ,  NAKANISHI TADASHI ,  ODA YOSHIHIKO

IPC分类号： C22C38/00 ,  C21D8/12 ,  C22C38/12 ,  C22C38/60 ,  H01F1/16

CPC分类号： H01F1/14775 ,  B21B1/026 ,  B21B15/00 ,  C21D8/12 ,  C21D8/1222 ,  C21D8/1261 ,  C21D8/1277 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/34 ,  C22C38/60 ,  H01F1/16 ,  H01F41/02 ,  Y02P10/212

摘要： According to the present invention, the pickling weight loss of a hot-rolled steel sheet having a prescribed composition is adjusted to 40 to 100g/m2 as determined after subjecting the hot-rolled steel sheet to annealing at 1000ºC for 30sec in a nitrogen atmosphere and then immersion in a 7% HCl solution at 80ºC for 60sec. Thus, a hot-rolled steel sheet which is for use in producing a non-oriented electrical steel sheet and which exhibits not only excellent magnetic characteristics such as iron loss and magnetic flux density but also excellent recyclability and sheet surface appearance can be obtained.

摘要翻译： 根据本发明，将经热轧钢板在氮气气氛中在1000℃退火30秒后测定的具有规定组成的热轧钢板的酸洗重量损失为40〜100g / m 2， 然后在80℃下浸入7％HCl溶液中60秒。 因此，可以获得用于制造无取向电工钢板的热轧钢板，并且不仅具有优异的磁特性如铁损和磁通密度，而且具有优异的可回收性和表面外观。

公开(公告)号：WO2014024222A8

公开(公告)日：2014-12-18

申请号：PCT/JP2012005046

申请日：2012-08-08

申请人： JFE STEEL CORP ,  TODA HIROAKI ,  NAKANISHI TADASHI ,  KOHNO MASAAKI ,  ODA YOSHIHIKO

发明人： TODA HIROAKI ,  NAKANISHI TADASHI ,  KOHNO MASAAKI ,  ODA YOSHIHIKO

IPC分类号： C22C38/00 ,  C21D8/12 ,  C22C38/06 ,  C22C38/60 ,  H01F1/16

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 which is suitable as a material for a rotor for a high-speed rotating motor, can maintain high strength thereof steadily, and has excellent magnetic properties can be produced. The high-strength electrical steel sheet has a chemical composition containing, in mass%, 0.005% or less of C, more than 3.5% and 4.5% or less of Si, 0.01% to 0.10% inclusive of Mn, 0.005% or less of Al, 0.0010% to 0.0050% inclusive of Ca, 0.0030% or less of S and 0.0030% or less of N, wherein the Ca/S ratio is 0.80 or more and the remainder of the chemical composition is made up by Fe and unavoidable impurities. The high-strength electrical steel sheet has a thickness of 0.40 mm or less, contains a deformed structure of uncrystallized crystals in an amount of 10% to 70% inclusive, and has tensile strength (TS) of 600 MPa or more and iron loss (W10/400) of 30 W/kg or less.

摘要翻译： 根据本发明，适合作为高速旋转电动机的转子材料的高强度电工钢板可以稳定地保持高强度，并且可以产生优异的磁性能。 高强度电工钢板的化学成分含有C：0.005％以下，C：3.5％以上4.5％以下，Si：0.01〜0.10％，Mn：0.005％以下， Al含量为0.0010〜0.0050％，S为0.0030％以下，N为0.0030％以下，其中Ca / S比为0.80以上，余量由Fe和不可避免的杂质构成 。 高强度电工钢板的厚度为0.40mm以下，含有10％〜70％以下的未结晶的变形结构，其拉伸强度（TS）为600MPa以上，铁损（ W10 / 400）为30W / kg以下。

公开(公告)号：WO2016027445A8

公开(公告)日：2017-01-19

申请号：PCT/JP2015004046

申请日：2015-08-13

申请人： JFE STEEL CORP

发明人： NAKANISHI TADASHI ,  NAKAJIMA HIROAKI ,  OKUBO TOMOYUKI ,  ODA YOSHIHIKO

IPC分类号： C22C38/00 ,  C21D8/12 ,  C22C38/16 ,  C22C38/60 ,  H01F1/16

CPC分类号： C21D8/1272 ,  C21D6/008 ,  C21D8/12 ,  C21D8/1222 ,  C21D8/1233 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16 ,  C22C38/60 ,  H01F1/14775 ,  H01F1/14791 ,  H01F1/16 ,  Y02P10/212

摘要： Provided is a non-oriented electrical steel sheet that has exceptional recyclability and does not undergo instability of the magnetic characteristics when the Al content is reduced in anticipation of reusing the non-oriented electrical steel sheet as scrap iron. The elemental composition, expressed in mass%, is 0.0050% or less of C, 1.0%-4.0% of Si, 0.10%-3.0% of Mn, less than 0.0050% of Sol.Al, more than 0.01% and up to 0.20% of P, 0.0050% or less of S, 0.0050% or less of N, at least 0.02% and less than 0.10% of Cu, and 0.0005%-0.0100% of Ca, the balance being Fe and unavoidable impurities.

摘要翻译： 本发明提供一种无取向电工钢板，其特征在于，在不使用未取向电工钢板作为废铁的情况下，在Al含量降低的情况下，不会发生磁特性的不稳定。 以质量％表示的元素组成为C：0.0050％以下，Si：1.0％〜4.0％，Mn：0.10％〜3.0％，Sol.Al：0.0025％以下，0.01％以上，0.20以下 P的％，S的0.0050％以下，N的0.0050％以下，Cu的至少0.02％以上且0.10以下，Ca：0.0005〜-0100％，余量为Fe和不可避免的杂质。

公开(公告)号：WO2014129106A8

公开(公告)日：2015-06-04

申请号：PCT/JP2014000200

申请日：2014-01-16

申请人： JFE STEEL CORP

发明人： TODA HIROAKI ,  ZAIZEN YOSHIAKI ,  NAKANISHI TADASHI ,  ODA YOSHIHIKO

IPC分类号： C22C38/00 ,  B21B3/02 ,  C21D8/12 ,  C22C38/60 ,  H01F1/147 ,  H01F1/16

CPC分类号： H01F1/14775 ,  B21B3/02 ,  C21D6/005 ,  C21D6/008 ,  C21D8/12 ,  C21D8/1222 ,  C21D8/1255 ,  C21D8/1261 ,  C21D9/46 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/60 ,  H01F1/14791 ,  H01F1/16 ,  H01F41/02

摘要： The pickling weight loss of a hot-rolled steel sheet having a prescribed component composition is adjusted, in accordance with the present invention, to 10 to 35 g/m2 as determined after subjecting the hot-rolled steel sheet to annealing at 1000ºC for 30 seconds in a nitrogen atmosphere and then immersion in a 7% HCl solution at 80ºC for 60 seconds, whereby it is possible to obtain a hot-rolled steel sheet which is for use in producing a non-oriented electrical steel sheet and which not only has excellent magnetic characteristics such as iron loss and magnetic flux density but also has reduced steel sheet surface defects and an excellent manufacturing yield.

摘要翻译： 根据本发明，将具有规定成分组成的热轧钢板的酸洗重量损失调整为在热轧钢板在1000℃下退火30秒后测定的10〜35g / m 2 然后在80℃下浸入7％HCl溶液中60秒钟，由此可以获得用于制造无取向电工钢板的热轧钢板，其不仅具有优异的 诸如铁损和磁通密度的磁特性也减少了钢板表面缺陷和优异的制造成品率。

公开(公告)号：WO2016136095A9

公开(公告)日：2017-01-26

申请号：PCT/JP2015084765

申请日：2015-12-11

申请人： JFE STEEL CORP

发明人： OKUBO TOMOYUKI ,  KURIHARA KOHEI ,  ODA YOSHIHIKO ,  NAKAJIMA HIROAKI

IPC分类号： C21D8/12 ,  C21D9/46 ,  C22C38/00 ,  C22C38/58 ,  C22C38/60 ,  H01F1/16

CPC分类号： C21D8/12 ,  C21D8/1272 ,  C21D9/46 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/58 ,  C22C38/60 ,  H01F1/14775 ,  H01F1/16 ,  Y02P10/212 ,  Y02P10/253

摘要： This method for producing non-oriented electrical steel sheets comprises: hot-rolling a steel slab containing, on a mass basis, not more than 0.005% of C, not more than 8.0% of Si, 0.03 to 3.0% of Mn, not more than 0.2% of P, not more than 0.005% of S, not more than 3.0% of Al, not more than 0.005% of N, not more than 3% of Ni, not more than 5% of Cr, not more than 0.005% of Ti, not more than 0.003% of Nb, not more than 0.005% of As, and not more than 0.005% of O; cold-rolling the steel sheet once or multiple times with intermediate annealing in between, after or without annealing the hot-rolled steel sheet; and finish annealing the steel sheet. The finish annealing process includes a temperature elevating step wherein the average temperature elevation rate from 600ºC to 700ºC is not less than 50ºC/sec. This method allows a high magnetic flux density to be stably provided even when carrying out rapid heating in the finish annealing process for the purpose of providing an improved texture.

摘要翻译： 这种无取向电工钢板的制造方法包括：以质量计，含有不超过0.005％的C，不超过8.0％的Si，0.03〜3.0％的Mn的钢坯，而不是更多 不超过0.2％的P，不超过0.005％的S，不超过3.0％的Al，不超过0.005％的N，不超过3％的Ni，不超过5％的Cr，不大于0.005 Ti％以下，Nb：0.003％以下，As：0.005％以下，O：0.005％以下。 在钢板之间进行中间退火，在热轧钢板退火或退火之后，对钢板进行一次或多次冷轧; 并对钢板进行最终退火。 最终退火处理包括升温步骤，其中600℃至700℃的平均升温速度不低于50℃/秒。 该方法允许即使在精加工退火工艺中进行快速加热以提供改进的质地的目的，也可以稳定地提供高磁通密度。

公开(公告)号：WO2013046661A8

公开(公告)日：2014-04-10

申请号：PCT/JP2012006141

申请日：2012-09-26

申请人： JFE STEEL CORP

发明人： ODA YOSHIHIKO ,  TODA HIROAKI ,  NAKANISHI TADASHI ,  ZAIZEN YOSHIAKI

IPC分类号： C22C38/00 ,  C22C38/60 ,  H01F1/16

CPC分类号： H01F1/14775 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1272 ,  C21D9/46 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/34 ,  C22C38/60 ,  H01F1/14791 ,  H01F1/16

摘要： Provided is a non-oriented electrical steel sheet having low iron loss in the high magnetic field region. The non-oriented electrical steel sheet according to the present invention comprises a chemical composition including, by mass%, 0.005% or less of C, 5% or less of Si, 3% or less of Al, 5% or less of Mn, 0.005% or less of S, 0.2% or less of P, 0.005% or less of N, 0.001 to 0.04% of Mo, 0.0030% or less of Ti, 0.0050% or less of Nb, 0.0050% or less of V, and 0.0020% or less of Zr; one or both selected from Sb and Sn, provided that the total amount is 0.001 to 0.1%; and the balance being iron and incidental impurities.

摘要翻译： 提供了一种在高磁场区域中具有低铁损的无取向电工钢板。 本发明的无方向性电磁钢板包含以质量％计含有C：0.005％以下的Si，5％以下的Si，3％以下的Al，5％以下的Mn， 0.005％以下的S，0.2％以下的P，0.005％以下的N，0.001〜0.04％的Mo，0.0030％以下的Ti，0.0050％以下的Nb，0.0050％以下的V，以及 0.0020％以下的Zr; 一种或两种选自Sb和Sn，条件是总量为0.001至0.1％; 余量为铁和杂质。

公开(公告)号：WO2013125223A1

公开(公告)日：2013-08-29

申请号：PCT/JP2013000967

申请日：2013-02-21

申请人： JFE STEEL CORP

发明人： NAKANISHI TADASHI ,  ZAIZEN YOSHIAKI ,  ODA YOSHIHIKO ,  TODA HIROAKI

IPC分类号： C21D8/12 ,  C22C38/00 ,  C22C38/60 ,  H01F1/16

CPC分类号： H01F1/14775 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1272 ,  C21D9/46 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F1/14791 ,  H01F1/16

摘要： A high-strength electromagnetic steel sheet is produced by a series of steps involving heating a slab which comprises a predetermined component composition, subjecting the slab to hot rolling which comprises rough rolling and finish rolling, then subjecting the slab to hot-rolled sheet annealing, acid-cleaning the slab, then cold-rolling the slab once to the final sheet thickness thereof, and finish-annealing the slab, wherein: the cumulative rolling-reduction rate in said rough rolling is 73.0% or greater; in said hot-rolled sheet annealing step, annealing conditions are selected such that, under conditions where the annealing temperature is between 850°C and 1000°C inclusive and the annealing time is between 10 seconds and 10 minutes inclusive, the area percentage of recrystallized grains in a cross section along the steel sheet rolling direction after said hot-rolled sheet annealing becomes 100% and the recrystallized grain size falls between 80 µm and 300 µm inclusive; and in said finish annealing step, annealing conditions are selected such that, under conditions where the annealing temperature is between 670°C and 800°C inclusive and the annealing time is between 2 seconds and 1 minute inclusive, the area percentage of recrystallized grains in a cross section along the steel sheet rolling direction after said finish annealing falls between 30% and 95% inclusive and the length, in the rolling direction, of a group of connected non-recrystallized grains becomes 2.5 mm or shorter.

摘要翻译： 通过一系列步骤制造高强度电磁钢板，包括加热包含预定组分组成的板坯，对坯料进行粗轧和精轧的热轧，然后对板坯进行热轧板退火， 对板坯进行酸洗，然后将板坯冷轧一次至其最终板厚，并对坯料进行最终退火，其中：所述粗轧中的累积轧制压下率为73.0％以上; 在所述热轧板退火工序中，选择退火条件，使退火温度为850℃〜1000℃，退火时间为10秒〜10分钟的条件下，重结晶的面积 所述热轧板退火后的钢板轧制方向的截面中的晶粒为100％，再结晶晶粒尺寸在80μm〜300μm的范围内。 在所述最终退火工序中，选择退火条件使得在退火温度为670℃〜800℃，退火时间为2秒〜1分钟的条件下，再结晶晶粒的面积率 所述最终退火后的钢板轧制方向的截面为30％〜95％，并且一组连接的未再结晶晶粒的轧制方向的长度为2.5mm以下。