公开(公告)号：US20160379754A1

公开(公告)日：2016-12-29

申请号：US15039516

申请日：2014-11-03

Applicant: VALEO SCHALTER UND SENSOREN GMBH

Inventor： Dirk Rachui ,  Ekkehart Froehlich

IPC: H01F41/02 ,  C21D8/12 ,  C21D3/04 ,  B21D53/00 ,  C23C22/68 ,  G01L3/10 ,  G01L5/22 ,  C21D9/32 ,  C23C8/18

CPC classification number: H01F41/0253 ,  B21D53/00 ,  C21D3/04 ,  C21D6/008 ,  C21D8/12 ,  C21D8/1216 ,  C21D8/1244 ,  C21D8/1272 ,  C21D8/1277 ,  C21D8/1283 ,  C21D9/32 ,  C22C38/02 ,  C22C38/08 ,  C23C8/18 ,  C23C22/68 ,  G01L3/104 ,  G01L5/221

Abstract: The invention relates to a method for producing a ferromagnetic component (17, 33) for a torque sensor for detecting a torque applied to a steering shaft of a motor vehicle, by providing a sheet-metal element composed of a ferromagnetic material, and by deforming the sheet-metal element to form the ferromagnetic component (17, 33), wherein an electric sheet steel is used as the ferromagnetic material for the sheet-metal element.

Abstract translation: 本发明涉及一种用于制造扭矩传感器的铁磁部件（17,33）的方法，该扭矩传感器用于检测施加到机动车辆的转向轴的转矩，通过提供由铁磁材料构成的金属板元件，并通过变形 所述片状金属元件形成铁磁性部件（17,33），其中使用电动钢板作为所述金属片材的铁磁性材料。

公开(公告)号：US09396872B2

公开(公告)日：2016-07-19

申请号：US13814675

申请日：2011-08-05

Applicant: Hirotaka Inoue ,  Takeshi Omura ,  Hiroi Yamaguchi ,  Seiji Okabe

Inventor： Hirotaka Inoue ,  Takeshi Omura ,  Hiroi Yamaguchi ,  Seiji Okabe

IPC: H01F41/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/60 ,  C23C30/00 ,  H01F1/18 ,  C23C26/00 ,  C21D8/12 ,  C21D9/46

CPC classification number: H01F41/00 ,  C21D8/1216 ,  C21D9/46 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/60 ,  C23C26/00 ,  C23C30/00 ,  H01F1/18 ,  Y10T428/2457 ,  Y10T428/24612

Abstract: A grain oriented electrical steel sheet may reduce iron loss of material with linear grooves formed thereon for magnetic domain refinement and offer excellent low iron loss properties when assembled as an actual transformer, where the steel sheet has sheet thickness of 0.30 mm or less, linear grooves are formed at intervals of 2-10 mm in the rolling direction, the depth of each of the linear grooves is 10 μm or more, the thickness of the forsterite film at bottom portions of the linear grooves is 0.3 μm or more, total tension applied to the steel sheet by the forsterite film and tension coating is 10.0 MPa or higher in rolling direction, and the proportion of eddy current loss in iron loss W17/50 of the steel sheet is 65% or less when alternating magnetic field of 1.7 T and 50 Hz is applied to the steel sheet in the rolling direction.

Abstract translation: 晶粒取向电工钢板可以减少形成在其上的线性槽的铁损，用于磁畴细化，并且当作为实际变压器组装时提供优异的低铁损性能，其中钢板具有0.30mm或更小的板厚度，线性槽 在轧制方向上以2-10mm的间隔形成，每个直线槽的深度为10μm以上，直线槽底部的镁橄榄石膜的厚度为0.3μm以上，施加总张力 通过镁橄榄石膜和钢板的拉伸强度在轧制方向为10.0MPa以上，钢板的铁损W17 / 50的涡电流损失比例为1.7T以下的交变磁场时的65％以下 在轧制方向上对钢板施加50Hz。

公开(公告)号：US20100158744A1

公开(公告)日：2010-06-24

申请号：US12308346

申请日：2006-06-16

Applicant: Hidekuni Murakami

Inventor： Hidekuni Murakami

IPC: C21D8/02 ,  C22C38/00 ,  C22C38/08 ,  C22C38/16 ,  C22C38/42 ,  C22C38/60 ,  C22C38/06 ,  C22C38/02 ,  C21D6/00

CPC classification number: C22C38/04 ,  C21D8/02 ,  C21D8/12 ,  C21D8/1216 ,  C21D8/1233 ,  C21D8/1244 ,  C21D8/1266 ,  C22C38/00 ,  C22C38/004 ,  C22C38/02 ,  C22C38/06 ,  C22C38/08 ,  C22C38/16 ,  C22C38/18 ,  C22C38/42 ,  H01F1/14775 ,  H01F1/16

Abstract: The present invention has as its object the production of high strength electrical steel sheet, having a high strength of a tensile strength TS of for example 500 MPa or more, having wear resistance, and having superior magnetic properties of magnetic flux density and iron loss, that is, provides a method of production of high strength electrical steel sheet containing, by mass %, C: 0.060% or less, Si: 0.2 to 6.5%, Mn: 0.05 to 3.0%, P: 0.30% or less, S or Se: 0.040% or less, Al: 2.50% or less, N: 0.020% or less, and further one or more of Cu: 0.001 to 30.0% and Nb: 0.03 to 8.0% and having worked structures remaining inside the steel sheet, said method of production of high strength electrical steel sheet coarsening an average crystal grain size D (μm) of a sheet right before a step of forming the worked structures to finally remain inside the steel sheet to D≧20 μm, imparting strain in the final working step as a preferred process, then not performing any heat treatment causing the worked structures to disappear and high strength electrical steel sheet obtained by that method.

Abstract translation: 本发明的目的是制造具有高抗拉强度TS（例如500MPa以上）的高强度电磁钢板，具有耐磨性，并具有优异的磁通密度和铁损的磁特性， 即，提供以质量％计含有C：0.060％以下，Si：0.2〜6.5％，Mn：0.05〜3.0％，P：0.30％以下的高强度电工钢板的制造方法，S或 Se：0.040％以下，Al：2.50％以下，N：0.020％以下，Cu：0.001〜30.0％，Nb：0.03〜8.0％中的一种以上，残留在钢板内部， 所述高强度电工钢板的制造方法，在形成加工结构的工序之前将片材的平均晶粒尺寸D（μm）粗大化，最终保留在钢板内至D≥20μm，在最终 工作步骤作为优选工艺，然后不进行任何热处理 e加工结构消失，并通过该方法获得高强度电工钢板。

公开(公告)号：US5597425A

公开(公告)日：1997-01-28

申请号：US487198

申请日：1995-06-07

Applicant: Koji Akioka ,  Osamu Kobayashi ,  Tatsuya Shimoda ,  Toshiyuki Ishibashi ,  Ryuichi Ozaki

Inventor： Koji Akioka ,  Osamu Kobayashi ,  Tatsuya Shimoda ,  Toshiyuki Ishibashi ,  Ryuichi Ozaki

IPC: B22F9/02 ,  C21D6/00 ,  C21D8/12 ,  C22C1/02 ,  C22C1/04 ,  C22C38/00 ,  C22C38/10 ,  C22C38/16 ,  H01F1/057 ,  H01F41/02 ,  H01F1/053

CPC classification number: C22C1/0441 ,  B22F9/023 ,  C21D8/1216 ,  C22C1/02 ,  C22C38/005 ,  C22C38/10 ,  C22C38/16 ,  H01F1/057 ,  H01F1/0576 ,  H01F41/0253 ,  B22F2998/00 ,  C21D6/00

Abstract: A rare earth iron permanent magnet including at least one rare earth element, iron and boron as primary ingredients. The magnet can have an average grain diameter of less than or equal to about 150 .mu.m and a carbon content of less than or equal to about 400 ppm and a oxygen content of less than or equal to about 1000 ppm. The permanent magnet is prepared by casting a molten alloy. In one embodiment, the cast body is heat treated at a temperature of greater than or equal to about 250.degree. C. Alternatively, the material can be cast and hot worked at a temperature of greater than or equal to about 500.degree. C. Finally, the material can be cast, hot worked at a temperature of greater than or equal to about 500.degree. C. and then heat treated at a temperature of greater than or equal to about 250.degree. C. The magnets provided in accordance with the invention are relatively inexpensive to produce an have excellent performance characteristics.

Abstract translation: 一种含有至少一种稀土元素，铁和硼作为主要成分的稀土铁永磁体。 磁体的平均粒径可以小于或等于约150μm，碳含量小于或等于约400ppm，氧含量小于或等于约1000ppm。 通过铸造熔融合金制备永磁体。 在一个实施例中，铸造体在大于或等于约250℃的温度下进行热处理。或者，该材料可以在大于或等于约500℃的温度下铸造和热加工。最后， 该材料可以铸造，在大于或等于约500℃的温度下热加工，然后在大于或等于约250℃的温度下进行热处理。根据本发明提供的磁体是相对的 廉价的生产具有优异的性能特点。

公开(公告)号：US11851726B2

公开(公告)日：2023-12-26

申请号：US17263846

申请日：2019-07-31

Applicant: NIPPON STEEL CORPORATION

Inventor： Shuichi Nakamura ,  Yusuke Kawamura ,  Shingo Okada ,  Tomoaki Ito ,  Shinya Yano

IPC: C21D9/46 ,  C21D8/12 ,  C22C38/00 ,  C22C38/02 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  H01F1/147

CPC classification number: C21D8/1216 ,  C21D9/46 ,  C22C38/004 ,  C22C38/02 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  H01F1/147

Abstract: A grain oriented electrical steel sheet includes the texture aligned with Goss orientation. In the grain oriented electrical steel sheet, when (α1 β1 γ1) and (α2 β2 γ2) represent deviation angles of crystal orientations measured at two measurement points which are adjacent on the sheet surface and which have an interval of 1 mm, the boundary condition BA is defined as |β2−β1|≥0.5°, and the boundary condition BB is defined as [(α2−α1)2+(β2−β1)2+(γ2−γ1)2]1/2≥2.0°, the boundary which satisfies the boundary condition BA and which does not satisfy the boundary condition BB is included.

公开(公告)号：US09847169B2

公开(公告)日：2017-12-19

申请号：US14781425

申请日：2014-03-31

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Akira Kano ,  Dai Kobuchi ,  Eisuke Hoshina ,  Osamu Yamashita ,  Noritaka Miyamoto

IPC: C22C33/02 ,  B22F3/02 ,  H01F41/02 ,  H01F1/057 ,  C21D6/00 ,  C21D8/00 ,  C21D8/12 ,  C22C38/00 ,  C22C38/10

CPC classification number: H01F41/0266 ,  C21D6/007 ,  C21D8/005 ,  C21D8/1211 ,  C21D8/1216 ,  C22C38/002 ,  C22C38/005 ,  C22C38/10 ,  H01F1/0576 ,  H01F1/0577

Abstract: A production method includes producing a rare-earth magnet precursor (S′) by performing first hot working in which, in two side surfaces of a sintered body, which are parallel to a pressing direction and are opposite to each other, one side surface is brought to a constrained state to suppress deformation, and the other side surface is brought to an unconstrained state to permit deformation; and producing a rare-earth magnet by performing second hot working in which, in two side surfaces (S′1, S′2) of the rare-earth magnet precursor (S′), which are parallel to the pressing direction, a side surface (S′2), which is in the unconstrained state in the first hot working, is brought to the constrained state to suppress deformation, and a side surface (S′1), which is in the constrained state in the first hot working, is brought to the unconstrained state to permit deformation.

公开(公告)号：US20170016085A1

公开(公告)日：2017-01-19

申请号：US15121791

申请日：2015-02-24

Applicant: JFE Steel Corporation

Inventor： Hiroaki TODA ,  Shigehiro TAKAJO ,  Michiro KOMATSUBARA

IPC: C21D9/46 ,  H01F41/02 ,  H01F3/02 ,  C21D8/12 ,  C21D10/00

CPC classification number: C21D9/46 ,  C21D1/09 ,  C21D8/1216 ,  C21D8/1294 ,  C21D10/00 ,  C21D2201/05 ,  H01F1/16 ,  H01F3/02 ,  H01F41/0233

Abstract: A grain-oriented electrical steel sheet is subjected to magnetic domain refining treatment by irradiating a steel sheet surface with an electron beam having a beam diameter d of 0.40 mm or less, wherein a modulated irradiation line region is formed with repeating units connected to each other in the line region direction, a periodic distance of the repeating units in the modulated irradiation line region is ⅔×d mm to 2.5×d mm, a repeating interval of the modulated irradiation line region in the rolling direction is 4.0 mm to 12.5 mm, and intensity of the electron beam is not lower than an intensity with which long and narrow divided magnetic domains extending in the modulated irradiation line region direction are formed at least on an irradiated side, and not higher than an intensity with which coating damage does not occur and a plastic strain region is not formed on the irradiated side.

Abstract translation: 通过用光束直径d为0.40mm以下的电子束照射钢板表面，对晶粒取向电工钢板进行磁畴精制处理，其中以相互连接的重复单元形成调制后的照射线区域 在线区域方向上，调制照射线区域中的重复单元的周期距离为⅔×dmm〜2.5×dmm，调制后的照射线区域的滚动方向的重复间隔为4.0mm〜12.5mm， 并且电子束的强度不低于至少在照射侧形成在调制的照射线区域方向上延伸的长且窄的分割磁畴的强度，并且不高于不会发生涂层损伤的强度 并且在照射侧不形成塑性应变区域。

公开(公告)号：US09496078B2

公开(公告)日：2016-11-15

申请号：US14372689

申请日：2012-03-29

Applicant: Huawei Zhang ,  Yaping Wu ,  Yu Gong ,  Yezhong Sun ,  Hongxu Hei

Inventor： Huawei Zhang ,  Yaping Wu ,  Yu Gong ,  Yezhong Sun ,  Hongxu Hei

IPC: C21D6/00 ,  H01F1/147 ,  C21D8/12 ,  C21D1/26 ,  C22C38/02 ,  H01F41/00 ,  C21D8/02 ,  C21D8/04 ,  C21D9/00 ,  C21D9/70

CPC classification number: H01F1/14766 ,  C21D1/26 ,  C21D6/00 ,  C21D6/008 ,  C21D8/021 ,  C21D8/041 ,  C21D8/1205 ,  C21D8/1216 ,  C21D8/1244 ,  C21D9/0081 ,  C21D9/70 ,  C21D2201/05 ,  C22C38/02 ,  H01F41/00

Abstract: A hot rolled silicon steel producing method comprises: silicon steel slab heating process, rough rolling process and finish rolling process. The heating process comprises a pre-heating stage, a heating stage and a soaking stage. The pre-heating stage satisfies the following formula (1). In the formula, VTp is a temperature increasing rate, in the pre-heating stage, whose unit is ° C./min; t is a total heating time of the slab in the heating furnace, and t=180-240 min; and Tc is an initial temperature when the slab is put into the furnace, whose unit is ° C. By using the foregoing formula, the heating process and the rough rolling process are changed, an occurrence rate of edge defects during the production of the hot rolled silicon steel can be reduced, and the hot rolled silicon steel with good surface quality can be produced. V Tp > 220 ⁢ ⁢ min t × 100 ⁢ ° ⁢ ⁢ C . T C + 200 ⁢ ° ⁢ ⁢ C . × 25 ⁢ ° ⁢ ⁢ C . / ⁢ min ( 1 )

公开(公告)号：US20160055968A1

公开(公告)日：2016-02-25

申请号：US14781425

申请日：2014-03-31

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Akira KANO ,  Dai KOBUCHI ,  Eisuke HOSHINA ,  Osamu YAMASHITA ,  Noritaka MIYAMOTO

IPC: H01F41/02 ,  C21D8/00 ,  H01F1/057 ,  C22C38/10 ,  C22C38/00 ,  C21D6/00 ,  C21D8/12

CPC classification number: H01F41/0266 ,  C21D6/007 ,  C21D8/005 ,  C21D8/1211 ,  C21D8/1216 ,  C22C38/002 ,  C22C38/005 ,  C22C38/10 ,  H01F1/0576 ,  H01F1/0577

Abstract: A production method includes producing a rare-earth magnet precursor (S′) by performing first hot working in which, in two side surfaces of a sintered body, which are parallel to a pressing direction and are opposite to each other, one side surface is brought to a constrained state to suppress deformation, and the other side surface is brought to an unconstrained state to permit deformation; and producing a rare-earth magnet by performing second hot working in which, in two side surfaces (S′1, S′2) of the rare-earth magnet precursor (S′), which are parallel to the pressing direction, a side surface (S′2), which is in the unconstrained state in the first hot working, is brought to the constrained state to suppress deformation, and a side surface (S′1), which is in the constrained state in the first hot working, is brought to the unconstrained state to permit deformation.

Abstract translation: 一种制造方法包括：通过进行第一热加工来制造稀土类磁体前体（S'），其中在烧结体的与压制方向平行的两个侧面中，一个侧面为 进入约束状态以抑制变形，另一侧面处于无约束状态以允许变形; 并通过进行第二热加工来制造稀土类磁体，其中，在与压入方向平行的稀土类磁体前体（S'）的两个侧面（S'1，S'2）中， 在第一热加工中处于无约束状态的表面（S'2）进入约束状态以抑制变形，并且在第一热加工中处于约束状态的侧表面（S'1） ，被带到无约束状态以允许变形。

公开(公告)号：US20150243418A1

公开(公告)日：2015-08-27

申请号：US14372689

申请日：2012-03-29

Applicant: Huawei Zhang ,  Yaping Wu ,  Yu Gong ,  Yezhong Sun ,  Hongxu Hei

Inventor： Huawei Zhang ,  Yaping Wu ,  Yu Gong ,  Yezhong Sun ,  Hongxu Hei

IPC: H01F1/147 ,  H01F41/00 ,  C22C38/02 ,  C21D8/12 ,  C21D6/00

CPC classification number: H01F1/14766 ,  C21D1/26 ,  C21D6/00 ,  C21D6/008 ,  C21D8/021 ,  C21D8/041 ,  C21D8/1205 ,  C21D8/1216 ,  C21D8/1244 ,  C21D9/0081 ,  C21D9/70 ,  C21D2201/05 ,  C22C38/02 ,  H01F41/00

Abstract: A hot rolled silicon steel producing method comprises: silicon steel slab heating process, rough rolling process and finish rolling process. The heating process comprises a pre-heating stage, a heating stage and a soaking stage. The pre-heating stage satisfies the following formula (1). In the formula, VTp is a temperature increasing rate, in the pre-heating stage, whose unit is ° C./min; t is a total heating time of the slab in the heating furnace, and t=180-240 min; and Tc is an initial temperature when the slab is put into the furnace, whose unit is ° C. By using the foregoing formula, the heating process and the rough rolling process are changed, an occurrence rate of edge defects during the production of the hot rolled silicon steel can be reduced, and the hot rolled silicon steel with good surface quality can be produced. V Tp > 220   min t × 100  °   C . T C + 200  °   C . × 25  °   C . /  min ( 1 )

Abstract translation: 热轧硅钢的制造方法包括：硅钢板坯加热工序，粗轧加工和精轧工序。 加热过程包括预热阶段，加热阶段和均热阶段。 预热阶段满足下式（1）。 在公式中，VTp是预热阶段的升温速率，单位为℃/ min; t是加热炉中板坯的总加热时间，t = 180-240分钟; Tc是板坯放入炉内时的初始温度，单位为℃。通过上述公式，加热处理和粗轧过程发生变化，生产热边缘边缘缺陷的发生率 可以减少轧制硅钢，并且可以生产具有良好表面质量的热轧硅钢。 V Tp> 220ㄧt××× T C + 200°C。 ×25°C。 /分钟（1）