公开(公告)号：US20150170813A1

公开(公告)日：2015-06-18

申请号：US14415027

申请日：2013-07-25

Applicant: JFE STEEL CORPORATION

Inventor： Yukihiro Shingaki ,  Takeshi Imamura ,  Ryuichi Suehiro ,  Makoto Watanabe

IPC: H01F1/147 ,  B21H7/00 ,  B21B45/00 ,  C21D8/12 ,  C21D9/46 ,  C21D6/00 ,  C22C38/34 ,  C22C38/60 ,  C22C38/14 ,  C22C38/12 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  H01F41/02 ,  B21B1/02

CPC classification number: H01F1/14775 ,  B21B1/026 ,  B21B45/004 ,  B21H7/00 ,  C21D6/001 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/12 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1272 ,  C21D8/1283 ,  C21D9/46 ,  C21D2201/05 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/18 ,  C22C38/34 ,  C22C38/60 ,  H01F1/14791 ,  H01F1/16 ,  H01F41/02

Abstract: In a method of producing a grain-oriented electrical steel sheet by hot rolling a steel slab having a chemical composition including C: 0.001˜0.10 mass %, Si: 1.0˜5.0 mass %, Mn: 0.01˜0.5 mass %, S and/or Se: 0.01˜0.05 mass %, sol. Al: 0.003˜0.050 mass % and N: 0.0010˜0.020 mass %, subjecting to single cold rolling or two or more cold rollings including an intermediate annealing therebetween to a final thickness, performing primary recrystallization annealing, and thereafter applying an annealing separator to perform final annealing, a temperature range of 550° C. to 700° C. in a heating process of the primary recrystallization annealing is rapidly heated at an average heating rate of 40˜200° C./s, while any temperature zone of from 250° C. to 550° C. is kept at a heating rate of not more than 10° C./s for 1˜10 seconds, whereby the refining of secondary recrystallized grains is attained and grain-oriented electrical steel sheets are stably obtained with a low iron loss.

Abstract translation: 在通过热轧具有C：0.001〜0.10质量％，Si：1.0〜5.0质量％，Mn：0.01〜0.5质量％的化学组成的钢板的方法中，S和/ 或Se：0.01〜0.05质量％，sol。 Al：0.003〜0.050质量％，N：0.0010〜0.2020质量％，进行一次再结晶退火，进行一次再结晶退火，然后进行一次再结晶退火，然后进行退火分离，进行一次冷轧或两次以上的冷轧， 最终退火时，在一次再结晶退火的加热过程中550℃至700℃的温度范围以40-200℃/ s的平均加热速率快速加热，而任何温度区域为250 以不超过10℃/秒的加热速率保持1〜10秒钟，由此可以获得二次再结晶晶粒的精制，并且可以稳定地获得晶粒取向电工钢板 低铁损。

公开(公告)号：US20150041023A1

公开(公告)日：2015-02-12

申请号：US14524038

申请日：2014-10-27

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Tooru Inaguma ,  Miho Tomita ,  Youji Mizuhara ,  Hiroaki Sakamoto

IPC: H01F1/147 ,  C22C38/04 ,  C22C38/00 ,  C22C38/06 ,  C22C38/02

CPC classification number: H01F1/14775 ,  B32B15/011 ,  B32B15/012 ,  B32B15/013 ,  C21D8/1222 ,  C21D8/1233 ,  C21D2201/05 ,  C21D2211/004 ,  C21D2211/005 ,  C21D2221/00 ,  C21D2221/10 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/16 ,  C22C38/18 ,  C22C2202/02 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C10/28 ,  C23C14/16 ,  C23C14/5893 ,  H01F1/16 ,  Y10T428/12951

Abstract: On at least one surface of a base metal plate (1) of an α-γ transforming Fe or Fe alloy, a metal layer (2) containing ferrite former is formed. Next, the base metal plate (1) and the metal layer (2) are heated to an A3 point of the Fe or the Fe alloy, whereby the ferrite former are diffused into the base metal plate (1) to form an alloy region (1b) in a ferrite phase in which an accumulation degree of {200} planes is 25% or more and an accumulation degree of {222} planes is 40% or less. Next, the base metal plate (1) is heated to a temperature higher than the A3 point of the Fe or the Fe alloy, whereby the accumulation degree of the {200} planes is increased and the accumulation degree of the {222} planes is decreased while the alloy region (11b) is maintained in the ferrite phase.

Abstract translation: 在α-γ转变Fe或Fe合金的贱金属板（1）的至少一个表面上形成含铁素体的金属层（2）。 接下来，将基底金属板（1）和金属层（2）加热到Fe或Fe合金的A3点，由此将铁素体成形体扩散到基体金属板（1）中以形成合金区域 1b）在{200}面的累积度为25％以上，堆积度为{222}面的玻璃化相中为40％以下。 接下来，将基底金属板（1）加热到高于Fe或Fe合金的A3点的温度，由此{200}面的累积度增加，{222}面的累积度为 同时合金区域（11b）保持在铁素体相中。

公开(公告)号：US20150020933A1

公开(公告)日：2015-01-22

申请号：US14383434

申请日：2013-03-26

Applicant: Nippon Steel & Sumikin Stainless Steel Corporation

Inventor： Junichi Hamada ,  Yuji Koyama ,  Yoshiharu Inoue ,  Tadashi Komori ,  Fumio Fudanoki ,  Toshio Tanoue ,  Naoto Ono

IPC: C21D8/02 ,  C22C38/54 ,  C22C38/52 ,  C22C38/50 ,  C22C38/48 ,  C22C38/44 ,  C22C38/42 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/22 ,  C22C38/20 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D9/46

CPC classification number: C22C38/54 ,  C21D6/002 ,  C21D7/02 ,  C21D7/13 ,  C21D8/0236 ,  C21D8/0263 ,  C21D9/46 ,  C21D2201/05 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/52

Abstract: Provided is a heat-resistant cold rolled ferritic stainless steel sheet containing, in terms of mass %, 0.02% or less of C, 0.1% to 1.0% of Si, greater than 0.6% to 1.5% of Mn, 0.01% to 0.05% of P, 0.0001% to 0.0100% of S, 13.0% to 20.0% of Cr, 0.1% to 3.0% of Mo, 0.005% to 0.20% of Ti, 0.3% to 1.0% of Nb, 0.0002% to 0.0050% of B, 0.005% to 0.50% of Al, and 0.02% or less of N, with the balance being Fe and inevitable impurities, in which {111}-oriented grains are present at an area ratio of 20% or greater in a region from a surface layer to t/4 (t is a sheet thickness), {111}-oriented grains are present at an area ratio of 40% or greater in a region from t/4 to t/2, and {011}-oriented grains are present at an area ratio of 15% or less in the entire region in a thickness direction.

Abstract translation: 本发明提供一种耐热冷轧铁素体系不锈钢板，其以质量％计含有0.02％以下的C，0.1〜1.0％的Si，大于0.6％〜1.5％的Mn，0.01〜0.05％ 的P，0.0001〜0.0100％的S，13.0〜20.0％的Cr，0.1〜3.0％的Mo，0.005〜0.20％的Ti，0.3〜1.0％的Nb，0.0002〜0.0050％的B ，Al：0.005〜0.50％，N：0.02％以下，余量为Fe和不可避免的杂质，{111}取向晶粒的面积比为20％以上， 表面层至t / 4（t为片材厚度），{111}取向晶粒以t / 4至t / 2的区域以40％以上的面积比存在，{011}取向晶粒 以厚度方向的整个区域的面积率为15％以下。

公开(公告)号：US20150007908A1

公开(公告)日：2015-01-08

申请号：US14235935

申请日：2012-08-15

Applicant: Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo ,  Kunihiro Senda

Inventor： Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo ,  Kunihiro Senda

IPC: C21D8/12 ,  C22C38/00 ,  H01F1/147 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F41/00 ,  C22C38/02

CPC classification number: C21D8/1272 ,  C21D8/12 ,  C21D8/1244 ,  C21D8/1283 ,  C21D2201/05 ,  C22C38/001 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16 ,  C22C38/60 ,  C23C22/33 ,  C23C22/74 ,  H01F1/14775 ,  H01F1/16 ,  H01F41/00

Abstract: In a method of producing a grain-oriented electrical steel sheet by hot-rolling a steel slab of a chemical composition containing C: 0.001˜0.10%, Si: 1.0˜5.0%, Mn: 0.01˜1.0%, at least one of S and Se: 0.01˜0.05% in total, sol. Al: 0.003˜0.050%, N: 0.001˜0.020% by mass, subjecting to cold rolling, a primary recrystallization annealing, application of an annealing separator mainly composed of MgO and a finish annealing, a temperature rising rate S1 between 500˜600° C. in the primary recrystallization annealing is made to not less than 100° C./s and a temperature rising rate S2 between 600˜700° C. is made to 30° C./s˜0.6×S1° C./s, while a total content W (mol %) of an element having an ionic radius of 0.6˜1.3 Å and an attracting force between the ion and oxygen of not more than 0.7 Å−2 included in the annealing separator to MgO is adjusted to satisfy 0.01S2-5.5≦Ln (W)≦0.01S2−4.3 to produce a grain-oriented electrical steel sheet having excellent iron loss properties and coating properties.

Abstract translation: 在通过热轧含有C：0.001〜0.10％，Si：1.0〜5.0％，Mn：0.01〜1.0％的化学成分的钢坯的方法中，S 和Se：0.01〜0.05％，溶胶。 Al：0.003〜0.050％，N：0.001〜0.020质量％，进行冷轧，一次再结晶退火，主要由MgO构成的退火分离装置和最终退火处理，升温速度S1为500〜600度 在一次再结晶退火中，使其在不低于100℃/秒之间，并将600-700℃之间的升温速度S2设定为30℃/秒〜0.6×S1℃/ ，而退火分离器中包含的离子半径为0.6〜0.3的元素和离子与氧之间的吸引力为0.7at以下的总含量W（mol％）被调整为满足 0.01S2-5.5＆nlE; Ln（W）＆nlE; 0.01S2-4.3，得到铁损特性和涂布性能优异的晶粒取向电工钢板。

公开(公告)号：US20140377573A1

公开(公告)日：2014-12-25

申请号：US14369476

申请日：2012-11-12

Applicant: JFE STEEL CORPORATION

Inventor： Tomoyuki Okubo ,  Gou Kijima ,  Makoto Watanabe

IPC: H01F1/147 ,  C23D7/00 ,  C21D8/12 ,  C23D5/02

CPC classification number: H01F1/14783 ,  C04B28/34 ,  C04B28/344 ,  C04B28/346 ,  C04B2111/00525 ,  C21D6/008 ,  C21D8/12 ,  C21D8/1272 ,  C21D8/1277 ,  C21D8/1283 ,  C21D8/1288 ,  C21D9/46 ,  C21D2201/05 ,  C22C38/00 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  C23C22/33 ,  C23C22/74 ,  C23D5/02 ,  C23D7/00 ,  H01F1/18 ,  C04B14/307 ,  C04B12/04

Abstract: A directional electromagnetic steel sheet with a coating includes a directional electromagnetic steel sheet; and a coating that is formed on the surface of the directional electromagnetic steel sheet and contains elements P, Si, Cr and O as well as at least one element that is selected from the group consisting of Mg, Al, Ni, Co, Mn, Zn, Fe, Ca and Ba, with 5% by mass or more thereof being composed of a crystalline phase of a phosphate salt.

Abstract translation: 具有涂层的定向电磁钢板包括定向电磁钢板; 以及形成在方向电磁钢板的表面上并且含有元素P，Si，Cr和O的涂层以及从由Mg，Al，Ni，Co，Mn等组成的组中的至少一种元素， Zn，Fe，Ca和Ba，其中5质量％以上由磷酸盐的结晶相组成。

公开(公告)号：US08871035B2

公开(公告)日：2014-10-28

申请号：US13129827

申请日：2009-11-18

Applicant: Stefano Fortunati ,  Giuseppe Abbruzzese ,  Stefano Cicale′

Inventor： Stefano Fortunati ,  Giuseppe Abbruzzese ,  Stefano Cicale′

IPC: C21D8/12 ,  C22C38/16 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C21D6/00 ,  C21D9/46

CPC classification number: C21D8/1211 ,  C21D6/008 ,  C21D8/1222 ,  C21D8/1255 ,  C21D8/1272 ,  C21D9/46 ,  C21D2201/05 ,  C22C38/001 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/16

Abstract: A process for producing grain oriented magnetic sheets by subjecting a steel slab ≦100 mm, containing 2.5-3.5% si, to the following operations: optional first heating, to a temperature T1≦1250° C.; first rough hot-rolling at T2 between 900 and 1200° C., the reduction ratio (% Rid) being at least 80% in the absence of a subsequent heating or, in the presence of a subsequent heating to T3≦1300° C., at least 60% determined by % Rid=80−(T3−T2)/5; second finishing hot-rolling at T4

Abstract translation: 通过对含有2.5-3.5％Si的钢坯和100l的钢板和nlE进行以下操作来制造晶粒取向磁性片的方法：可选的第一次加热至温度T1＆lt; 12℃; 1250℃。 首先在900〜1200℃之间的T2热轧，在不加热的情况下还原率（％Rid）为80％以上，或者随后加热至T3＆lt; 1300℃。 ，至少60％由％Rid = 80-（T3-T2）/ 5确定; 在T4 <1300℃下进行第二次热轧，轧制截面厚度为1.5±3.0mm; 在一个或多个阶段进行冷轧，可选择的中间退火和最后阶段应用的冷轧比率≥60％; 一次再结晶退火，任选在脱碳气氛中; 第二次再结晶退火。

公开(公告)号：US08790471B2

公开(公告)日：2014-07-29

申请号：US13812229

申请日：2010-07-28

Applicant: Tatsuhiko Sakai ,  Koji Hirano ,  Satoshi Arai ,  Yoshiyuki Ushigami

Inventor： Tatsuhiko Sakai ,  Koji Hirano ,  Satoshi Arai ,  Yoshiyuki Ushigami

IPC: H01F1/00 ,  C21D1/00 ,  C21D8/02

CPC classification number: H01F1/14775 ,  C21D8/0205 ,  C21D8/0278 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1277 ,  C21D9/46 ,  C21D10/00 ,  C21D2201/05 ,  C22C38/34 ,  H01F1/01 ,  H01F1/16

Abstract: A silicon steel sheet (1) containing Si is cold-rolled. Next, a decarburization annealing (3) of the silicon steel sheet (1) is performed so as to cause a primary recrystallization. Next, the silicon steel sheet (1) is coiled so as to obtain a steel sheet coil (31). Next, an annealing (6) of the steel sheet coil (31) is performed through batch processing so as to cause a secondary recrystallization. Next, the steel sheet coil (31) is uncoiled and flattened. Between the cold-rolling and the obtaining the steel sheet coil (31), a laser beam is irradiated a plurality of times at predetermined intervals on a surface of the silicon steel sheet (1) from one end to the other end of the silicon steel sheet (1) along a sheet width direction (2). When the secondary recrystallization is caused, grain boundaries passing from a front surface to a rear surface of the silicon steel sheet (1) along paths of the laser beams are generated.

Abstract translation: 含有Si的硅钢板（1）被冷轧。 接着，进行硅钢板（1）的脱碳退火（3），进行一次再结晶。 接下来，将硅钢板（1）卷绕成钢板卷（31）。 接着，通过分批处理进行钢板卷材31的退火（6），进行二次再结晶。 接下来，钢板卷（31）开卷并变平。 在冷轧与获得钢板卷（31）之间，在硅钢板（1）的表面上以规定间隔多次照射激光，从硅钢的一端到另一端 片材（1）沿着片材宽度方向（2）。 当发生二次再结晶时，产生沿着激光束的路径从硅钢板（1）的前表面延伸到后表面的晶界。

公开(公告)号：US20140193667A1

公开(公告)日：2014-07-10

申请号：US14235009

申请日：2012-07-27

Applicant: Hiroshi Shuto ,  Nobuhiro Fujita ,  Tatsuo Yokoi ,  Riki Okamoto ,  Kazuaki Nakano ,  Shinichiro Watanabe

Inventor： Hiroshi Shuto ,  Nobuhiro Fujita ,  Tatsuo Yokoi ,  Riki Okamoto ,  Kazuaki Nakano ,  Shinichiro Watanabe

IPC: C22C38/38 ,  C22C38/32 ,  C22C38/28 ,  C22C38/22 ,  C22C38/16 ,  C22C38/00 ,  C22C38/12 ,  C22C38/10 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C21D8/02 ,  C22C38/14

CPC classification number: C22C38/38 ,  C21D8/0263 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0473 ,  C21D2201/05 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  Y10T428/12799

Abstract: A high-strength cold-rolled steel sheet having excellent stretch flangeability and precision punchability containing predetermined components and a balance being composed of iron and inevitable impurities, in which in a range of ⅝ to ⅜ in sheet thickness from the surface of the steel sheet, an average value of pole densities of the {100} to {223} orientation group represented by respective crystal orientations of {100} , {116} , {114} , {113} , {112} , {335} , and {223} is 6.5 or less, and a pole density of the {332} crystal orientation is 5.0 or less, and a metal structure contains, in terms of an area ratio, greater than 5% of pearlite, the sum of bainite and martensite limited to less than 5%, and a balance composed of ferrite.

Abstract translation: 一种高强度冷轧钢板，其特征在于，具有优异的拉伸凸缘性和精密冲压性，其特征在于，在钢板表面的板厚为⅝〜⅜的范围内，由铁和不可避免的杂质构成， {100} <011>，{116} <110>，{114} <110>的各个晶体取向表示的{100} <011>至{223} <110>取向基团的极点密度的平均值， {113} <110>，{112} <110>，{335} <110>和{223} <110>为6.5以下，并且{332} <113>晶体取向的极点密度为5.0或 更少，金属结构体以面积比计含有大于5％的珠光体，贝氏体和马氏体的总和为5％以下，铁素体为平衡。

公开(公告)号：US20140124101A1

公开(公告)日：2014-05-08

申请号：US14110896

申请日：2012-04-12

Applicant: Yoshihiro Suwa ,  Kazuaki Nakano ,  Kunio Hayashi ,  Riki Okamoto ,  Nobuhiro Fujita ,  Kohichi Sano

Inventor： Yoshihiro Suwa ,  Kazuaki Nakano ,  Kunio Hayashi ,  Riki Okamoto ,  Nobuhiro Fujita ,  Kohichi Sano

IPC: C22C38/38 ,  C22C38/28 ,  C22C38/26 ,  C22C38/22 ,  C22C38/16 ,  C22C38/00 ,  C22C38/12 ,  C22C38/10 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C21D8/02 ,  C22C38/14

CPC classification number: C21D9/46 ,  B32B15/013 ,  C21D8/02 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0473 ,  C21D2201/05 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C21D2211/009 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/105 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/38 ,  C23C2/06 ,  C23C2/285 ,  C23C2/36 ,  Y10T428/12799

Abstract: This high-strength hot-rolled steel sheet having excellent local deformability contains, in mass %, C: 0.07% to 0.20%; Si: 0.001% to 2.5%; Mn: 0.01% to 4.0%; P: 0.001% to 0.15%; S: 0.0005% to 0.03%; Al: 0.001% to 2.0%; N: 0.0005% to 0.01%; and O: 0.0005% to 0.01%; and a balance being composed of iron and inevitable impurities, in which an area ratio of bainite in a metal structure is 95% or more, at a sheet thickness center portion being a range of 5/8 to 3/8 in sheet thickness from the surface of the steel sheet, an average value of pole densities of the {100} to {223} orientation group is 4.0 or less, and a pole density of the {332} crystal orientation is 5.0 or less, and a mean volume diameter of crystal grains in the metal structure is 10 μm or less.

Abstract translation: 这种局部变形性优异的高强度热轧钢板以质量％计含有C：0.07〜0.20％。 Si：0.001〜2.5％ Mn：0.01〜4.0％ P：0.001〜0.15％ S：0.0005〜0.03％; Al：0.001〜2.0％ N：0.0005〜0.01％; 和O：0.0005％至0.01％; 余量由铁和不可避免的杂质组成，其中，在板厚中心部分，贝氏体在金属结构体中的面积比为95％以上，其厚度为5/8〜3/8 钢板的表面，{100} <011>〜{223} <110>取向基团的极点密度的平均值为4.0以下，{332} <113>晶体取向的极点密度为5.0 并且金属结构体中的晶粒的平均体积直径为10μm以下。

公开(公告)号：US08657968B2

公开(公告)日：2014-02-25

申请号：US13816773

申请日：2011-09-09

Applicant: Tatsuhiko Sakai ,  Hideyuki Hamamura

Inventor： Tatsuhiko Sakai ,  Hideyuki Hamamura

IPC: H01F1/00 ,  H01F1/04 ,  C21D1/00

CPC classification number: H01F1/01 ,  C21D8/1266 ,  C21D8/1272 ,  C21D8/1294 ,  C21D2201/05 ,  H01F1/18 ,  H01F41/0206

Abstract: This method of manufacturing a grain-oriented electrical steel sheet includes, between a cold rolling process and a winding process, a groove formation process of irradiating the surface of a silicon steel sheet with a laser beam multiple times at predetermined intervals in a sheet passing direction, over an area from one end edge to the other end edge, in a sheet width direction of the silicon steel sheet, thereby forming a groove along a locus of the laser beam.

Abstract translation: 这种制造方向性电磁钢板的方法包括在冷轧工序和卷绕工序之间，以规定的间隔以片材通过方向以激光多次照射硅钢板表面的槽形成工序 在一个端部边缘到另一个端部边缘的区域中，在硅钢板的片材宽度方向上，从而沿着激光束的轨迹形成凹槽。