公开(公告)号：US20160203895A1

公开(公告)日：2016-07-14

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

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.

Abstract translation: 不仅商业频率高频区具有高磁通密度和低铁损的无方向性电磁钢板，其具有C：不大于0.0050质量％的化学组成，Si：大于 1.5质量％以上且5.0质量％以下，Mn：0.10质量％以下。 Al：0.0050质量％以下，P：大于0.040质量％以上0.2质量％以下，S：0.0050质量％以下，N：0.0040质量％以下，Ca：0.001-0.01质量％ 余量为Fe和不可避免的杂质，钢板中存在的氧化物系夹杂物中的CaO的组成比不小于0.4，和/或Al 2 O 3的组成比为0.3以上，热轧钢板用作 生钢材料。

公开(公告)号：US20220008938A1

公开(公告)日：2022-01-13

申请号：US17288811

申请日：2019-08-13

Applicant: JFE STEEL CORPORATION

Inventor： Teruhiko TOBE ,  Takashi DOI ,  Shinji KOSEKI

IPC: B05B1/14 ,  C23C10/08

Abstract: A slit nozzle having a double-tube structure and a method for manufacturing a high-silicon steel strip having a small variation in Si concentration depending on the position in the width direction of the steel strip. The slit nozzle has a double-tube structure, in which a flow-control plate which closes a gap between an inner tube and an outer tube is disposed between an open end of the inner tube and an end of a delivery port, and in which an opening is formed in a plane in which the flow-control plate is disposed only in a range of the flow-control plate of 27.5° or more and 332.5° or less in terms of a central angle with respect to a reference line L1 passing through the axis of the outer tube and the central position in the width direction of the delivery port.

公开(公告)号：US20220091597A1

公开(公告)日：2022-03-24

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

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：US20170260600A1

公开(公告)日：2017-09-14

申请号：US15329938

申请日：2015-06-01

Applicant: JFE STEEL CORPORATION

Inventor： Tomoyuki OKUBO ,  Tadashi NAKANISHI ,  Yoshihiko ODA ,  Shinji KOSEKI

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

CPC classification number: C21D9/0068 ,  C21D1/30 ,  C21D8/12 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1266 ,  C21D8/1272 ,  C21D9/46 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F1/16 ,  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：US20220154299A1

公开(公告)日：2022-05-19

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

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：US20160203896A1

公开(公告)日：2016-07-14

申请号：US14909978

申请日：2014-08-11

Applicant: JFE STEEL CORPORATION

Inventor： Tadashi NAKANISHI ,  Shinji KOSEKI ,  Yoshihiko ODA ,  Hiroaki TODA

IPC: H01F1/16 ,  C22C38/34 ,  C22C38/16 ,  H02K1/02 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/60 ,  C22C38/08

CPC classification number: C22C38/00 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1272 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/16 ,  C22C38/34 ,  C22C38/60 ,  H01F1/16 ,  H02K1/02

Abstract: A non-oriented electrical steel sheet having a chemical composition comprising C: not more than 0.010 mass %, Si: 1.0-7.0 mass %, Mn: 0.001-3.0 mass %, sol. Al: 0.0001-3.5 mass %, P: 0.01-0.2 mass %, S: not more than 0.010 mass %, N: not more than 0.010 mass % and the remainder being Fe and inevitable impurities, wherein a ratio (P120/Fe700) of a peak-peak height P120 of P near to an electronic energy of 120 eV to a peak-peak height Fe700 of Fe near to an electronic energy of 700 eV in an Auger differential spectrum obtained by analyzing a broken surface of a grain boundary through Auger electron spectroscopy is not less than 0.1 and a sheet thickness is 0.10-0.50 mm, and a motor using such a non-oriented electrical steel sheet as an iron core.

Abstract translation: 化学成分为C：0.010质量％以下，Si：1.0〜7.0质量％，Mn：0.001-3.0质量％的无取向电工钢板。 Al：0.0001-3.5质量％，P：0.01〜0.2质量％，S：0.010质量％以下，N：0.010质量％以下，其余为Fe和不可避免的杂质，其中，比率（P120 / Fe700） 在靠近120eV的电子能量的P的峰 - 峰高度P120与通过分析晶界的破碎表面分析所获得的俄歇微分光谱中接近700eV的电子能量的Fe的峰 - 峰高Fe700 俄歇电子能谱法不小于0.1，板厚度为0.10-0.50mm，使用这种无取向电工钢板作为铁芯的电动机。