公开(公告)号：US20150034211A1

公开(公告)日：2015-02-05

申请号：US14367654

申请日：2012-12-21

Applicant: JFE STEEL CORPORATION

Inventor： Shigehiro Takajo ,  Seiji Okabe

IPC: H01F1/16 ,  C21D1/34 ,  C21D8/12

CPC classification number: H01F1/16 ,  C21D1/34 ,  C21D1/38 ,  C21D8/12 ,  C21D8/1244 ,  C21D8/1294 ,  C21D2201/05 ,  C22C38/00

Abstract: Disclosed is a grain-oriented electrical steel sheet exhibiting low hysteresis loss and low coercive force, in which an increase in hysteresis loss due to laser irradiation or electron beam irradiation, which has been a conventional concern, is effectively inhibited. The grain-oriented electrical steel sheet has closure domain regions (X) formed to divide the magnetic domains in a rolling direction, from one end to the other in the width direction of the steel sheet, provided that Expression (1) is satisfied: −(500t−80)×s+230≦w≦−(500t−80)×s+330  Expression (1), where t represents a sheet thickness (mm); w represents a smaller one of the widths (μm) of the regions measured on the front and rear surfaces of the steel sheet, respectively, by using a Bitter method; and s represents an average number of the regions present within one crystal grain.

Abstract translation: 公开了有效地抑制由常规问题引起的激光照射或电子束照射引起的滞后损耗增加的磁滞损耗低和矫顽力低的晶粒取向电工钢板。 晶粒取向电工钢板具有闭合区域区域（X），其形成为在钢板的宽度方向上从轧制方向的一端到另一端分割磁畴，只要满足式（1）： （500t-80）×s + 230＆nlE; w＆nlE; - （500t-80）×s + 330表达式（1）其中t表示片厚度（mm）; w表示通过使用Bitter法分别在钢板的前表面和后表面测量的区域的宽度（μm）中的较小的一个; s表示存在于一个晶粒内的区域的平均数。

公开(公告)号：US20150000794A1

公开(公告)日：2015-01-01

申请号：US14371013

申请日：2012-03-29

Applicant: Liang Zou ,  Bo Wang ,  Xiandong Liu ,  Aihua Ma ,  Shishu Xie ,  Hongxu Hei

Inventor： Liang Zou ,  Bo Wang ,  Xiandong Liu ,  Aihua Ma ,  Shishu Xie ,  Hongxu Hei

IPC: C21D8/12 ,  C22C38/12 ,  H01F1/147 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/14 ,  C22C38/06

CPC classification number: C21D8/1261 ,  C21C7/0006 ,  C21C7/0645 ,  C21D8/12 ,  C21D8/1205 ,  C21D8/1233 ,  C21D2201/05 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  H01F1/14791 ,  H01F1/16

Abstract: An unoriented silicon steel having high magnetic conductivity and low iron loss at a working magnetic density of 1.0-1.5 T and method for manufacturing same. By proper deoxidation control in a RH refining and high-temperature treatment for a short time in a normalizing step, the method can reduce the amount of inclusions in the silicon steel and improve grain shape, so as to improve the magnetic conductivity and iron loss of the unoriented silicon steel at a magnetic density of 1.0-1.5 T.

Abstract translation: 一种在1.0-1.5T的工作磁密度下具有高磁导率和低铁损的无取向硅钢及其制造方法。 通过在正常化阶段的RH精炼和高温处理中进行适当的脱氧控制，该方法可以减少硅钢中的夹杂物的量并改善晶粒形状，从而提高磁导率和铁损 磁性密度为1.0-1.5T的无取向硅钢。

公开(公告)号：US20140373340A1

公开(公告)日：2014-12-25

申请号：US14344952

申请日：2012-09-17

Applicant: voestalpine Stahl GmbH

Inventor： Franz Dorninger ,  Roman Sonnleitner ,  Herbert Kreuzer

IPC: H01F1/147 ,  C21D8/12 ,  H02K15/02 ,  H01F41/02

CPC classification number: H01F1/14766 ,  C21D8/1244 ,  C21D8/1272 ,  C21D9/46 ,  C21D2201/05 ,  C22C1/02 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/34 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  G01N21/6408 ,  G01N21/643 ,  H01F41/0213 ,  H02K15/02 ,  Y10T29/49012 ,  Y10T29/4902

Abstract: A higher-strength, non-grain-oriented electrical strip with high polarization, the electrical strip consisting of a steel alloy, wherein the limits of the following elements are maintained: Mn between 0.35 mass % and 0.65 mass %, Si between 2.0 mass % and 3.0 mass %, Al between 0.8 mass % and 1.4 mass %, and P between 0.14 mass % and 0.24 mass %; and a method for the production thereof.

Abstract translation: 具有高极化性的高强度非晶粒取向电条，由钢合金组成的电条，其中保持以下元素的极限：Mn在0.35质量％至0.65质量％之间，Si在2.0质量％ 和3.0质量％，Al在0.8质量％至1.4质量％之间，P在0.14质量％至0.24质量％之间; 及其制造方法。

公开(公告)号：US20140338794A1

公开(公告)日：2014-11-20

申请号：US14344805

申请日：2012-09-14

Applicant: Yukihiro Shingaki ,  Makoto Watanabe ,  Kunihiro Senda

Inventor： Yukihiro Shingaki ,  Makoto Watanabe ,  Kunihiro Senda

IPC: C21D8/12

CPC classification number: C21D8/1261 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1266 ,  C21D8/1272 ,  C21D2201/05 ,  C22C38/001 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/34 ,  C22C38/60 ,  H01F1/16

Abstract: In the production of a grain-oriented electrical steel sheet by hot rolling a steel slab comprising C: 0.001˜0.10 mass %, Si: 1.0˜5.0 mass %, Mn: 0.01˜0.5 mass %, sol. Al: 0.003˜0.050 mass %, N: 0.0010˜0.020 mass %, one or two selected from S and Se: 0.005˜0.040 mass % in total, cold rolling, primary recrystallization annealing, and final annealing, a heating rate S1 between a temperature T1 (° C.): 500+2×(NB−NA) and a temperature T2 (° C.): 600+2×(NB−NA) in a heating process of the primary recrystallization annealing is set to not less than 80° C./sec, and an average heating rate S2 from the temperature T2 to 750° C. is set to 0.1˜0.7 times of S1, whereby a grain-oriented electrical steel sheet having a low iron loss over a full length of a product coil is obtained.

Abstract translation: 在通过热轧含有C：0.001〜0.10质量％，Si：1.0〜5.0质量％，Mn：0.01〜0.5质量％的钢板的钢板的制造中， Al：0.003〜0.050质量％，N：0.0010〜0.020质量％，从S和Se中选择的一个或两个：总计0.005〜0.40质量％，冷轧，一次再结晶退火和最终退火，加热速度S1 一次再结晶退火的加热工序中的温度T1（℃）：500 + 2×（NB-NA）和温度T2（℃）：600 + 2×（NB-NA） 超过80℃/秒，从温度T2到750℃的平均加热速度S2设定为S1的0.1〜0.7倍，由此得到全长铁损低的方向性电磁钢板 的产品线圈。

公开(公告)号：US08734658B2

公开(公告)日：2014-05-27

申请号：US13805520

申请日：2011-06-03

Applicant: Keiji Iwata ,  Yasuhiro Kikuchi

Inventor： Keiji Iwata ,  Yasuhiro Kikuchi

IPC: B44C1/22 ,  C21D8/12 ,  C23F1/02 ,  C23F1/14 ,  H01F1/147

CPC classification number: C21D8/1294 ,  C21D6/008 ,  C21D8/12 ,  C21D8/1255 ,  C21D9/46 ,  C21D2201/05 ,  C21D2221/00 ,  C22C1/02 ,  C22C38/00 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23F1/00 ,  C23F1/02 ,  C23F1/14 ,  C25F3/06 ,  H01F1/14783 ,  H01F1/16

Abstract: A resist film is formed on a cold-rolled steel sheet so as to fabricate a groove by etching. At this point, a steel sheet exposed portion where a portion of the steel sheet is exposed is formed in the resist film, and the steel sheet exposed portion has a first region oriented in a sheet width direction, and a plurality of second regions starting from the first region, widths of the first region and the second regions being 20 μm to 100 μm, and a distance from an end portion of one of the second regions to an end portion of another of the second regions adjacent thereto being 60 μm to 570 μm.

Abstract translation: 在冷轧钢板上形成抗蚀剂膜，以通过蚀刻制造凹槽。 此时，在抗蚀剂膜上形成钢板暴露部分，钢板露出部分具有沿纸张宽度方向取向的第一区域和从第一区域开始的多个第二区域 所述第一区域，所述第一区域和所述第二区域的宽度为20μm至100μm，并且从所述第二区域中的一个的端部到与所述第二区域的另一个的另一个的端部的距离为60μm至570 μm。

公开(公告)号：US20140113159A1

公开(公告)日：2014-04-24

申请号：US14129334

申请日：2012-08-16

Applicant: Masahiro Fujikura ,  Yoshiyuki Ushigami ,  Tesshu Murakawa ,  Shinichi Kanao ,  Makoto Atake ,  Takeru Ichie ,  Kojiro Hori ,  Shinichi Matsui

Inventor： Masahiro Fujikura ,  Yoshiyuki Ushigami ,  Tesshu Murakawa ,  Shinichi Kanao ,  Makoto Atake ,  Takeru Ichie ,  Kojiro Hori ,  Shinichi Matsui

IPC: C21D8/00 ,  C22C38/02 ,  C21D9/46 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  B32B15/01 ,  C22C38/04

CPC classification number: C21D8/005 ,  B32B15/011 ,  C21D8/12 ,  C21D8/1244 ,  C21D8/1272 ,  C21D9/46 ,  C21D2201/05 ,  C21D2211/004 ,  C21D2211/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  H01F1/16 ,  H01F3/08 ,  Y10T428/12965

Abstract: When contents of Ti, V, Zr, Nb, and C (mass %) are represented as [Ti], [V], [Zr], [Nb], and [C] respectively, a value of a parameter Q represented by “Q=([Ti]/48+[V]/51+[Zr]/91+[Nb]/93)/([C]/12)” is not less than 0.9 nor more than 1.1. A matrix of a metal structure is a ferrite phase, and the metal structure does not include a non-recrystallized structure. An average grain size of ferrite grains constituting the ferrite phase is not less than 10 μm nor more than 200 μm. A precipitate containing at least one selected from the group consisting of Ti, V, Zr, and Nb exists with a density of 10 μm−3 or more in the ferrite grain. An average grain size of the precipitate is not less than 0.002 μm nor more than 0.2 μm.

Abstract translation: 当Ti，V，Zr，Nb和C（质量％）的含量分别表示为[Ti]，[V]，[Zr]，[Nb]和[C]时，由 “Q =（[Ti] / 48 + [V] / 51 + [Zr] / 91 + [Nb] / 93）/（[C] / 12）”不小于0.9也不大于1.1。 金属结构的基体是铁素体相，金属结构不包含未再结晶的结构。 构成铁素体相的铁素体晶粒的平均粒径为10μm以上200μm以下。 含有选自Ti，V，Zr和Nb中的至少一种的析出物在铁素体晶粒中的密度为10μm-3以上。 沉淀物的平均粒径不小于0.002μm，不大于0.2μm。

公开(公告)号：US20140106130A1

公开(公告)日：2014-04-17

申请号：US14119774

申请日：2012-05-28

Applicant: Tatsuhiko Sakai ,  Yoshio Nakamura ,  Kazuyuki Tashiro ,  Shohji Nagano ,  Shuichi Yamazaki ,  Koji Hirano

Inventor： Tatsuhiko Sakai ,  Yoshio Nakamura ,  Kazuyuki Tashiro ,  Shohji Nagano ,  Shuichi Yamazaki ,  Koji Hirano

IPC: C21D8/12 ,  B05D3/06

CPC classification number: C21D8/1277 ,  B05D3/06 ,  C21D8/1283 ,  C21D8/1288 ,  C21D10/005 ,  C21D2201/05 ,  C22C38/02 ,  C22C38/04 ,  H01F1/18 ,  Y10T428/24488 ,  Y10T428/24777 ,  Y10T428/24793

Abstract: To provide a grain oriented electrical steel sheet that can securely suppress propagation of lateral strain, and can make a product even from a portion where the lateral strain occurs. A grain oriented electrical steel sheet of the present invention has a linearly altered portion 14 generated in a glass coating film 12 at one of side edges of a steel sheet 11, in a continuous line or in a discontinuous broken line in a direction parallel with a rolling direction of the steel sheet, and having a composition different from a composition in other portions of the glass coating film. An average value of a deviation angle of a direction of an axis of easy magnetization of crystal grains relative to the rolling direction is 0° or more and 20° or less in a base metal iron portion of the steel sheet 11 at a position along a width direction of the steel sheet, the position corresponding to the linearly altered portion 14.

Abstract translation: 为了提供能够可靠地抑制横向应变的扩展的晶粒取向电工钢板，能够从产生横向应变的部分产生均匀的产品。 本发明的晶粒取向电工钢板具有在钢板11的一个侧缘处的玻璃涂膜12中产生的线性变化部分14，在连续线上或在与 钢板的轧制方向，并且其组成与玻璃涂膜的其它部分的组成不同。 钢板11的贱金属铁部分在沿着沿着轧制方向的位置处的晶粒相对于轧制方向的易磁化轴方向的偏离角的平均值为0°以上且20°以下 钢板的宽度方向，对应于线性变化部分14的位置。

公开(公告)号：US20140014236A1

公开(公告)日：2014-01-16

申请号：US14007583

申请日：2012-03-28

Applicant: Takayuki Nozaki ,  Manabu Takahashi ,  Nobuhiro Fujita ,  Hiroshi Yoshida ,  Shinichiro Watanabe ,  Takeshi Yamamoto ,  Chisato Wakabayashi ,  Riki Okamoto ,  Kohichi Sano

Inventor： Takayuki Nozaki ,  Manabu Takahashi ,  Nobuhiro Fujita ,  Hiroshi Yoshida ,  Shinichiro Watanabe ,  Takeshi Yamamoto ,  Chisato Wakabayashi ,  Riki Okamoto ,  Kohichi Sano

IPC: C21D8/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/00 ,  C22C38/10 ,  C22C38/12 ,  C22C38/34 ,  C22C38/38 ,  C22C38/02 ,  C22C38/08

CPC classification number: C22C38/26 ,  B32B15/013 ,  C21D8/0226 ,  C21D8/0263 ,  C21D8/0463 ,  C21D9/46 ,  C21D2201/05 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/28 ,  C22C38/34 ,  C22C38/38 ,  C22C38/60 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40

Abstract: Disclosed is a hot-rolled steel sheet including, by mass %, C:0.02% to 0.5% of C, and the sum of the content of Si and the content of Al is 1.0% to 4.0%. An average pole density of an orientation group from {100} to {223} is 1.0 to 6.5, and a pole density of a crystal orientation {332} is 1.0 to 5.0. A microstructure includes, by of an area ratio, 2% to 30% of retained austenite, 20% to 50% of ferrite, and 10% to 60% of bainite. rC that is a Lankford value in a direction orthogonal to a rolling direction is 0.70 to 1.10, and r30 that is a Lankford value in a direction forming an angle of 30° with the rolling direction is 0.70 to 1.10.

Abstract translation: 公开了以质量％计，C：0.02〜0.5％的C，Si的含量和Al的含量之和为1.0〜4.0％的热轧钢板。 {100} <011>至{223} <110>的取向基团的平均极密度为1.0〜6.5，晶体取向{332} <113>的极点密度为1.0〜5.0。 微观结构包括通过面积比为2％至30％的残留奥氏体，20％至50％的铁素体和10％至60％的贝氏体。 在与轧制方向正交的方向上的兰克福德值的rC为0.70〜1.10，在与轧制方向成30°角的方向上的兰克福德值为r = 0.70〜1.10。

公开(公告)号：US20130337282A1

公开(公告)日：2013-12-19

申请号：US14001646

申请日：2012-02-23

Applicant: Yukihiro Oishi ,  Nobuyuki Mori ,  Ryuichi Inoue ,  Nozomu Kawabe

Inventor： Yukihiro Oishi ,  Nobuyuki Mori ,  Ryuichi Inoue ,  Nozomu Kawabe

IPC: C22C23/02 ,  C22C23/00

CPC classification number: C22C23/02 ,  B22D11/001 ,  B22D11/0622 ,  C21D2201/05 ,  C22C1/02 ,  C22C23/00 ,  C22F1/06 ,  Y10T428/12

Abstract: There are provided a magnesium alloy material and a method for producing the magnesium alloy material. In a magnesium (Mg) alloy material having a sheet-shaped portion with a thickness of 1.5 mm or more, when a region having ¼ the thickness of the sheet-shaped portion in a thickness direction from a surface of the sheet-shaped portion is defined as a surface region and a remaining region is defined as an internal region, the ratio OF/OC of the basal plane peak ratio OF in the surface region to the basal plane peak ratio OC (degree of orientation of (002) planes) in the internal region satisfies 0.95≦OF/OC≦1.05. A sheet-shaped Mg alloy material is obtained by performing at least one pass of the rolling at a reduction ratio of 25% or more and the remaining passes of the rolling at a reduction ratio of 10% or more.

Abstract translation: 提供镁合金材料和镁合金材料的制造方法。 在具有厚度为1.5mm以上的片状部分的镁（Mg）合金材料中，当从片状部分的表面沿厚度方向的片状部分的厚度为1/4时， 定义为表面区域，剩余区域被定义为内部区域，表面区域中的基底平面峰值比OF与基底面峰值比率OC（（002）面取向度）的比值OF / OC） 内部区域满足0.95 @ OF / OC @ 1.05。 通过以25％以上的压下率和10％以上的压下率进行轧制的至少一次轧制，得到片状的Mg合金材料。

公开(公告)号：US20130333808A1

公开(公告)日：2013-12-19

申请号：US14001444

申请日：2012-02-22

Applicant: Yuichiro Shimizu ,  Atsushi Kobayashi ,  Susumu Maeda ,  Masao Kanayama ,  Kiyotaka Akimoto

Inventor： Yuichiro Shimizu ,  Atsushi Kobayashi ,  Susumu Maeda ,  Masao Kanayama ,  Kiyotaka Akimoto

IPC: C23C8/26

CPC classification number: C23C8/26 ,  C21D1/06 ,  C21D1/74 ,  C21D1/76 ,  C21D9/32 ,  C21D2201/05 ,  C21D2221/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/44

Abstract: The present invention provides a nitrided steel member and manufacturing method thereof. the nitrided steel member including: an iron nitride compound layer formed on a surface of a steel member made of carbon steel for machine structural use or alloy steel for machine structural use, in which with regard to X-ray diffraction peak intensity IFe4N (111) of the (111) crystal plane of Fe4N and X-ray diffraction peak intensity IFe3N (111) of the (111) crystal plane of Fe3N obtained by measuring a surface of the nitrided steel member by X-ray diffraction, an intensity ratio represented by IFe4N(111)/{IFe4N (111)+IFe3N (111)} is 0.5 or more, and a thickness of the iron nitride compound layer is 2 to 17 μm.

Abstract translation: 本发明提供一种氮化钢构件及其制造方法。 所述氮化钢构件包括：在机械结构用碳素钢或由机械结构用合金钢构成的钢构件的表面上形成的氮化铁化合物层，其中X射线衍射峰强度IFe4N（111） 的Fe 3 N的（111）晶面和通过X射线衍射测量氮化钢构件的表面而获得的Fe 3 N的（111）晶面的X射线衍射峰强度IFe3N（111）的强度比， IFe4N（111）/ {IFe4N（111）+ IFe3N（111）}为0.5以上，氮化铁层的厚度为2〜17μm。