公开(公告)号：US12055922B2

公开(公告)日：2024-08-06

申请号：US17423111

申请日：2020-01-08

Applicant: JFE STEEL CORPORATION

Inventor： Shinji Koseki ,  Masaru Fukumura ,  Hiroyasu Shigemori ,  Shiguma Uno ,  Noriko Ozawa ,  Toshito Takamiya

IPC: G05B19/418

CPC classification number: G05B19/41875 ,  G05B2219/32368

Abstract: An analysis system 10 includes: an operational data acquisition unit 11 that acquires operational data including an operational state of a production line 20; a product information acquisition unit 13 that acquires a state of a product manufactured in the production line and outputs the state of the product as product information; a production state analyzer 12 that obtains a predetermined physical quantity of the product on a basis of the operational data acquired by the operational data acquisition unit 11 and outputs the predetermined physical quantity as information on the physical quantity; and a correlation analyzer 14 that performs analysis of a correlation between the information on the physical quantity and the product information.

公开(公告)号：US20170229222A1

公开(公告)日：2017-08-10

申请号：US15503570

申请日：2015-08-06

Applicant: JFE STEEL CORPORATION

Inventor： Tadashi Nakanishi ,  Shinji Koseki ,  Yoshihiko Oda ,  Tomoyuki Okubo

IPC: H01F1/147 ,  C22C38/14 ,  H02K1/02 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/60 ,  C22C38/06

CPC classification number: H01F1/14791 ,  B60L50/10 ,  C21D6/008 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1266 ,  C21D8/1272 ,  C21D8/1283 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/60 ,  H01F1/14775 ,  H01F1/16 ,  H02K1/02

Abstract: A non-oriented electrical steel sheet having a high magnetic flux density and a low iron loss includes C: not more than 0.01 mass %, Si: 1.3-5.0 mass %, Mn: 0.001-3 mass %, sol. Al: not more than 0.004 mass %, P: 0.03-0.20 mass %, S: not more than 0.005 mass %, N: not more than 0.005 mass %, Ti: more than 0.0020 mass % but not more than 0.1 mass %, and further contains one or more selected from Sn: 0.001-0.1 mass %, Sb: 0.001-0.1 mass %, Ca: 0.001-0.02 mass % and Mg: 0.001-0.02 mass % as required.

公开(公告)号：US09605331B2

公开(公告)日：2017-03-28

申请号：US14369143

申请日：2012-12-27

Applicant: JFE STEEL CORPORATION

Inventor： Seiko Nara ,  Toshio Ishii ,  Shinji Koseki ,  Katsuhiro Takebayashi ,  Naoki Nakata ,  Hiroyuki Fukuda ,  Eitaro Shidara ,  Takashi Wada

IPC: C21D9/00 ,  C21D9/46 ,  C21D9/673 ,  F27B5/06 ,  F27B5/14 ,  F27B17/00 ,  F27B11/00 ,  F27B5/04 ,  F27D5/00 ,  F27D9/00

CPC classification number: C21D9/0062 ,  C21D9/0025 ,  C21D9/0068 ,  C21D9/46 ,  C21D9/673 ,  F27B5/04 ,  F27B5/06 ,  F27B5/14 ,  F27B11/00 ,  F27B17/0016 ,  F27D5/0006 ,  F27D9/00 ,  F27D2009/0008 ,  F27D2009/0018

Abstract: A batch annealing furnace includes a coil support base on which an end face of a coil is mounted and that supports the coil with an axis of the coil being upright, an inner cover that covers an entire body of the coil mounted on the coil support base, and a cooling pipe that extends downward from the upper part of the inner cover to a cavity of the inner peripheral part of the coil mounted on the coil support base and cools the coil from the inner surface side by passing a coolant through the inside of the cooling pipe.

公开(公告)号：US20160351308A1

公开(公告)日：2016-12-01

申请号：US15111310

申请日：2015-01-08

Applicant: JFE STEEL CORPORATION

Inventor： Yoshihiko Oda ,  Tadashi Nakanishi ,  Shinji Koseki ,  Tomoyuki Okubo

IPC: H01F1/04 ,  C22C38/00 ,  C22C38/04 ,  C22C38/02 ,  C22C38/60 ,  C22C38/06

CPC classification number: H01F1/04 ,  C21D8/12 ,  C21D9/46 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F1/16

Abstract: A non-oriented electrical steel sheet has a high magnetic flux density and a low iron loss contains in terms of mass %, C: not more than 0.010%, Si: 1-4%, Mn: 0.05-3%, Al: not more than 0.004%, N: not more than 0.005%, P: 0.03-0.20%, S: not more than 0.01% and Se: not more than 0.002% or contains in terms of mass, C: not more than 0.01%, Si: 1-4%, Mn: 0.05-3%, Al: not more than 0.004%, N: not more than 0.005%, P: 0.03-0.20%, S: not more than 0.01%, Se: not more than 0.003% and further contains one or two selected from Sn: 0.001-0.1 mass % and Sb: 0.001-0.1 mass %.

Abstract translation: 无方向性电磁钢板的磁通密度高，铁含量以质量％计含有，C：不大于0.010％，Si：1-4％，Mn：0.05-3％，Al：不 大于0.004％，N：不大于0.005％，P：0.03-0.20％，S：不大于0.01％，Se：不大于0.002％，或以质量计含有C：不大于0.01％ Si：1-4％，Mn：0.05〜3％，Al：0.004％以下，N：0.005％以下，P：0.03〜0.20％，S：0.01％以下，Se：不大于 0.003％，进一步含有选自Sn：0.001-0.1质量％和Sb：0.001-0.1质量％的一种或两种。

公开(公告)号：US11959147B2

公开(公告)日：2024-04-16

申请号：US17601481

申请日：2020-04-02

Applicant: JFE STEEL CORPORATION

Inventor： Yumi Murakami ,  Nobuhiko Oda ,  Yusuke Fujii ,  Goro Okuyama ,  Shota Amano ,  Shinji Koseki ,  Shingo Sato ,  Yukio Takahashi ,  Ryo Kawabata ,  Naoki Kikuchi ,  Atsuo Yuasa

IPC: C21C5/46

CPC classification number: C21C5/4606

Abstract: A top-blowing lance nozzle is configured to freely switch an adequate expansion condition so as to control an oxygen-blowing amount and a jetting velocity independently of each other without requiring a plurality of lance nozzles or a mechanically movable part. A lance nozzle is configured to blow refining oxygen to molten iron charged in a reaction vessel while a gas is blown from a top-blowing lance to the molten iron. One or more blowing holes for blowing a working gas are on an inner wall side surface of the nozzle, at a site where the lance nozzle has a minimum cross-sectional area in a nozzle axis direction or at a neighboring site of the site.

公开(公告)号：US10102951B2

公开(公告)日：2018-10-16

申请号：US14774258

申请日：2014-03-11

Applicant: JFE STEEL CORPORATION

Inventor： Yoshihiko Oda ,  Hiroaki Toda ,  Shinji Koseki ,  Tatsuhiko Hiratani ,  Tadashi Nakanishi ,  Tomoyuki Okubo

IPC: H01F1/147 ,  C22C38/00 ,  C22C38/06 ,  C22C38/60 ,  H01F1/16 ,  C22C38/02 ,  C22C38/04 ,  C21D8/12

Abstract: A non-oriented electrical steel sheet having a high magnetic flux density and a low anisotropy contains C: not more than 0.01 mass %, Si: 1-4 mass %, Mn: 0.05-3 mass %, P: 0.03-0.2 mass %, S: not more than 0.01 mass %, Al: not more than 0.004 mass %, N: not more than 0.005 mass %, As: not more than 0.003 mass %, and preferably further contains one or two of Sb: 0.001-0.1 mass % and Sn: 0.001-0.1 mass % or further contains one or two of Ca: 0.001-0.005 mass % and Mg: 0.001-0.005 mass %.

公开(公告)号：US20160076125A1

公开(公告)日：2016-03-17

申请号：US14767735

申请日：2014-03-12

Applicant: JFE STEEL CORPORATION

Inventor： Shinji Koseki ,  Yoshihiko Oda ,  Hiroaki Toda ,  Tatsuhiko Hiratani ,  Tadashi Nakanishi

IPC: C22C38/60 ,  C22C38/12 ,  C22C38/00 ,  C22C38/04 ,  C22C38/02 ,  C22C38/14 ,  C22C38/06

CPC classification number: C22C38/60 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1255 ,  C21D8/1261 ,  C21D8/1272 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  H01F1/14791 ,  H01F1/16

Abstract: A non-oriented electrical steel sheet has a chemical composition that includes C: not more than 0.005%, Si: 1.5-4%, Mn: 1.0-5%, P: not more than 0.1%, S: not more than 0.005%, Al: not more than 3 mass %, N: not more than 0.005 mass %, Bi: not more than 0.0030% as mass % and the remainder being Fe and inevitable impurities or a chemical composition containing C: not more than 0.005%, Si: 1.5-4%, Mn: 1.0-5%, P: not more than 0.1%, S: not more than 0.005%, Al: not more than 3 mass %, N: not more than 0.005 mass %, Bi: not more than 0.0030% and further one or two of Ca: 0.0005-0.005% and Mg: 0.0002-0.005%, and is stably excellent in the high-frequency iron loss property even if a great amount of Mn is included.

Abstract translation: 无取向电工钢板的化学组成为C：0.005％以下，Si：1.5-4％，Mn：1.0-5％，P：0.1％以下，S：0.005％以下， ，Al：3质量％以下，N：0.005质量％以下，Bi：不大于0.0030质量％，余量为Fe和不可避免的杂质，或含有C：0.005以下的化学成分， Si：1.5-4％，Mn：1.0-5％，P：不大于0.1％，S：不大于0.005％，Al：不大于3质量％，N：0.005质量％以下Bi： Ca：0.0005〜0.005％，Mg：0.0002〜0.005％的不大于0.0030％，还有一种或两种，即使含有大量的Mn，也具有稳定的高频铁损特性。

公开(公告)号：US10526673B2

公开(公告)日：2020-01-07

申请号：US15329938

申请日：2015-06-01

Applicant: JFE STEEL CORPORATION

Inventor： Tomoyuki Okubo ,  Tadashi Nakanishi ,  Yoshihiko Oda ,  Shinji Koseki

IPC: C21D9/46 ,  C21D9/00 ,  C21D8/12 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  C21D1/30 ,  H02K1/02 ,  H02K15/02

Abstract: A non-oriented electrical steel sheet is obtained by subjecting a slab containing C: not more than 0.005 mass %, Si: 1.0-5.0 mass %, Mn: 0.04-3.0 mass %, sol. Al: not more than 0.005 mass %, P: 0.03-0.2 mass %, S: not more than 0.005 mass %, N: not more than 0.005 mass %, B: not more than 0.001 mass %, and Se: not more than 0.001 mass % and satisfying sol. Al+C+5B+5Se≤0.005 mass % to hot rolling, cold rolling and finish annealing. A sheet temperature at the outlet side of the rolling machine in at least one pass of the final cold rolling is set to a range of 100-300° C. to provide S/2M of not less than 1.0 and S/5C of not less than 1.0 when X-ray intensity ratios of {001} , {111} and {001} in a central layer in a thickness direction are S, M and C, respectively.

公开(公告)号：US10006109B2

公开(公告)日：2018-06-26

申请号：US14909940

申请日：2014-08-11

Applicant: JFE STEEL CORPORATION

Inventor： Tadashi Nakanishi ,  Shinji Koseki ,  Yoshihiko Oda ,  Hiroaki Toda

IPC: H01F1/16 ,  C22C38/06 ,  B21B3/02 ,  C22C38/02 ,  C22C38/00 ,  H01F1/34 ,  C22C38/60 ,  C22C38/04 ,  C21D8/12 ,  C21C7/04

CPC classification number: C22C38/00 ,  B21B3/02 ,  C21C7/04 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1272 ,  C21D2211/004 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F1/16 ,  H01F1/342

Abstract: A non-oriented electrical steel sheet having a high magnetic flux density and a low iron loss at not only a commercial frequency but also a high frequency zone, which has a chemical composition including C: not more than 0.0050 mass %, Si: more than 1.5 mass % but not more than 5.0 mass %, Mn: not more than 0.10 mass %, sol. Al: not more than 0.0050 mass, P: more than 0.040 mass % but not more than 0.2 mass %, S: not more than 0.0050 mass %, N: not more than 0.0040 mass % and Ca: 0.001-0.01 mass % and the remainder being Fe and inevitable impurities and a compositional ratio of CaO in oxide-based inclusions existing in a steel sheet of not less than 0.4 and/or a compositional ratio of Al2O3 of not less than 0.3, and a hot rolled steel sheet used as a raw steel material thereof.

公开(公告)号：US20160020007A1

公开(公告)日：2016-01-21

申请号：US14775925

申请日：2014-03-12

Applicant: JFE STEEL CORPORATION

Inventor： Yoshihiko Oda ,  Hiroaki Toda ,  Shinji Koseki ,  Tatsuhiko Hiratani ,  Tadashi Nakanishi

IPC: H01F1/147 ,  C22C38/14 ,  C22C38/00 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/60 ,  C22C38/12

CPC classification number: H01F1/14775 ,  C21D8/12 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/60 ,  H01F1/14791 ,  H01F1/16

Abstract: A non-oriented electrical steel sheet has a chemical composition including C: not more than 0.005 mass %, Si: 1.5-4 mass %, Mn: 1-5 mass %, P: not more than 0.1 mass %, S: not more than 0.005 mass %, Al: not more than 3 mass %, N: not more than 0.005 mass %, Pb: not more than 0.001 mass % and the remainder being Fe and inevitable impurities or a chemical composition including C: not more than 0.005 mass %, Si: 1.5-4 mass %, Mn: 1-5 mass %, P: not more than 0.1 mass %, S: not more than 0.005 mass %, Al: not more than 3 mass %, N: not more than 0.005 mass %, Pb: not more than 0.0020 mass % and further one or two of Ca: 0.0005-0.007 mass % and Mg: 0.0002-0.005 mass %, and has a stable and excellent high-frequency iron loss property even when Mn content is high.

Abstract translation: 无取向电工钢板的化学成分为C：0.005质量％以下，Si：1.5〜4质量％，Mn：1-5质量％，P：0.1质量％以下S：以上 0.005质量％以下，Al：3质量％以下，N：0.005质量％以下，Pb：0.001质量％以下，其余为Fe和不可避免的杂质，或含有C：0.005以下的化学组成 质量％，Si：1.5〜4质量％，Mn：1-5质量％，P：0.1质量％以下S：0.005质量％以下Al：3质量％以下N：不大于 0.005质量％以下，Pb：0.0020质量％以下，Ca：0.0005〜0.007质量％，Mg：0.0002〜0.005质量％中的一种以上，即使在Mn 内容很高。