公开(公告)号：US09512500B2

公开(公告)日：2016-12-06

申请号：US14129334

申请日：2012-08-16

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

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

IPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C21D8/12 ,  H01F1/16 ,  B32B15/00 ,  C21D8/00 ,  C22C38/12 ,  B32B15/01 ,  C21D9/46 ,  H01F3/08

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US08790471B2

公开(公告)日：2014-07-29

申请号：US13812229

申请日：2010-07-28

申请人： Tatsuhiko Sakai ,  Koji Hirano ,  Satoshi Arai ,  Yoshiyuki Ushigami

发明人： Tatsuhiko Sakai ,  Koji Hirano ,  Satoshi Arai ,  Yoshiyuki Ushigami

IPC分类号： H01F1/00 ,  C21D1/00 ,  C21D8/02

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

摘要： 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.

摘要翻译： 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：US08366836B2

公开(公告)日：2013-02-05

申请号：US13381294

申请日：2010-07-13

申请人： Yoshiyuki Ushigami ,  Norikazu Fujii

发明人： Yoshiyuki Ushigami ,  Norikazu Fujii

IPC分类号： H01F1/147

CPC分类号： C23C8/26 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1255 ,  C21D8/1261 ,  C21D8/1283 ,  C21D2201/05 ,  C21D2211/004 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F1/16

摘要： A silicon steel material is heated in a predetermined temperature range according to contents of B, N, Mn, S, and Se (step S1), and is subjected to hot rolling (step S2). Further, a finish temperature Tf of finish rolling in the hot rolling is performed in a predetermined temperature range according to the content of B. Through these treatments, a certain amount of BN is made to precipitate compositely on MnS and/or MnSe.

摘要翻译： 根据B，N，Mn，S和Se的含量，在规定的温度范围内加热硅钢材料（步骤S1），进行热轧（步骤S2）。 此外，根据B的含量，在规定的温度范围内进行热轧精轧的精加工温度Tf。通过这些处理，使一定量的BN复合地析出在MnS和/或MnSe上。

公开(公告)号：US20110155285A1

公开(公告)日：2011-06-30

申请号：US13060647

申请日：2009-09-08

申请人： Tomoji Kumano ,  Yoshiyuki Ushigami ,  Shuichi Nakamura ,  Yohichi Zaizen

发明人： Tomoji Kumano ,  Yoshiyuki Ushigami ,  Shuichi Nakamura ,  Yohichi Zaizen

IPC分类号： C23C8/26 ,  C23C8/02 ,  C23C8/80

CPC分类号： H01F1/16 ,  C21D6/008 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1272 ,  C21D8/1283 ,  C22C38/001 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C23C8/24 ,  C23C8/26 ,  C23C8/80 ,  F27B9/28 ,  F27B9/30

摘要： A slab with a predetermined composition is heated at 1280° C. to 1390° C. to make a substance functioning as an inhibitor to be solid-solved (step S1). Next, the slab is hot-rolled to obtain a steel strip (step S2). The steel strip is annealed to form a primary inhibitor in the steel strip (step S3). Next, the steel strip is cold-rolled once or more (step S4). Next, the steel strip is annealed to perform decarburization and to cause primary recrystallization (step S5). Next, nitriding treatment is performed on the steel strip in a mixed gas of hydrogen, nitrogen and ammonia under a state where the steel strip runs, to form a secondary inhibitor in the steel strip (step S6). Next, the steel strip is annealed to induce secondary recrystallization (step S7).

摘要翻译： 将具有预定组成的板坯在1280℃加热至1390℃，以使作为固溶体的抑制剂起作用的物质（步骤S1）。 接下来，对板坯进行热轧以获得钢带（步骤S2）。 钢带退火以在钢带中形成初级抑制剂（步骤S3）。 接下来，将钢带冷轧一次以上（步骤S4）。 接着，退火钢带进行脱碳，进行一次再结晶（步骤S5）。 接下来，在钢带运行的状态下，在氢气，氮气和氨的混合气体中对钢带进行氮化处理，在钢带中形成二次抑制剂（步骤S6）。 接着，对钢带进行退火以引起二次再结晶（步骤S7）。

公开(公告)号：US5888314A

公开(公告)日：1999-03-30

申请号：US185298

申请日：1994-01-21

申请人： Yoshiyuki Ushigami ,  Fumio Kurosawa ,  Hajime Komatsu

发明人： Yoshiyuki Ushigami ,  Fumio Kurosawa ,  Hajime Komatsu

IPC分类号： C21D8/12 ,  C22C38/00 ,  C22C38/06 ,  H01F1/16 ,  H01F1/04

CPC分类号： C21D8/1272 ,  C21D8/1244 ,  C21D8/1255 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261

摘要： In a process for the preparation of oriented electrical steel sheet having a high magnetic flux density a primary recrystallization annealed steel sheet is nitrided for a short period of time in a temperature range of 800.degree. C. or less whereby growth of crystal grains does not substantially occur. The nitrided sheet is held at a temperature range of 700.degree. C. to 800.degree. C. for at least four hours during temperature raising to final annealing temperature whereby nitride formed by the nitriding dissolves and re-precipitates allowing the nitride to transform to a thermally stable nitride containing aluminium.

摘要翻译： 在制备具有高磁通密度的取向电工钢板的方法中，将一次再结晶退火钢板在800℃以下的温度范围内短时间氮化，由此晶粒的生长基本上不 发生。 氮化片在升温至最终退火温度的过程中，在700〜800℃的温度范围内保持至少4小时，由氮化物形成的氮化物溶解并重新沉淀，使氮化物转化为热 含铝的稳定氮化物。

公开(公告)号：US5370748A

公开(公告)日：1994-12-06

申请号：US974354

申请日：1992-11-10

申请人： Yozo Suga ,  Yoshiyuki Ushigami

发明人： Yozo Suga ,  Yoshiyuki Ushigami

IPC分类号： C21D8/12 ,  C22C38/00 ,  C22C38/06 ,  H01F1/16

CPC分类号： C21D8/1233 ,  C21D8/1272

摘要： The present invention is a process for manufacturing a double oriented electrical steel sheet having a high magnetic flux density by carrying out a low temperature annealing for the secondary recrystallization by the use of AlN as inhibitor, characterized by hot-rolling a silicon steel slab comprising 1.8-4.8% by weight of Si, 0.008-0.048% by weight of acid soluble Al, 0.0028-0.0100% by weight of acid soluble Al, 0.0028-0.0100% by weight of total N, not more than 0.016% by weight of S and the balance being Fe and unavoidable impurities into a hot-rolled sheet, subjecting the sheet to cold-rolling at a reduction rate of 40-80%, subsequently subjecting the sheet to another cold-rolling at a reduction rate of 30-70% in the direction crossing the cold-rolled direction, annealing at 750.degree.-950.degree. C. in a wet hydrogen atmosphere for decarburization, and carrying out the final finishing annealing which comprises a stage for completing the secondary recrystallizing at a temperature of 920.degree.-1100.degree. C., followed by a stage for purification.

摘要翻译： 本发明是一种通过使用AlN作为抑制剂进行二次再结晶的低温退火来制造具有高磁通密度的双重取向电工钢板的方法，其特征在于，热轧含有1.8 -4.8重量％的Si，0.008-0.048重量％的酸溶性Al，0.0028-0.0100重量％的酸溶性Al，0.0028-0.0100重量％的总N，不大于0.016重量％的S和 余量为Fe和不可避免的杂质进入热轧板中，以40-80％的还原率对板进行冷轧，随后将片材以30-70％的还原率进行另一次冷轧 与冷轧方向交叉的方向，在湿氢气氛中在750-950℃退火脱碳，进行最终精加工退火，其包括在920℃的温度下完成二次再结晶的阶段 EG-1100℃，然后进行纯化。

公开(公告)号：US5145533A

公开(公告)日：1992-09-08

申请号：US769586

申请日：1991-10-02

申请人： Yasunari Yoshitomi ,  Yozo Suga ,  Nobuyuki Takahashi ,  Yoshiyuki Ushigami ,  Tadashi Nakayama

发明人： Yasunari Yoshitomi ,  Yozo Suga ,  Nobuyuki Takahashi ,  Yoshiyuki Ushigami ,  Tadashi Nakayama

IPC分类号： C21D8/12 ,  C21D11/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  H01F1/16

CPC分类号： C21D8/1255 ,  C21D11/00 ,  C21D8/1283

摘要： A process for producing a grain-oriented electrical steel sheet having an excellent magnetic characteristic, comprising the steps of: heating to a temperature lower than 1280.degree. C. a steel slab comprising 0.025 to 0.075 wt % C, 2.5 to 4.5 wt % Si, 0.010 to 0.060 wt % acid-soluble Al, 0.0030 to 0.0130 wt % N, 0.014 wt % or less (S+0.405 Se), 0.05 to 0.8 wt % Mn, and the balance consisting of Fe and unavoidable impurities; hot-rolling the thus heated slab to form a hot-rolled strip; cold-rolling the hot-rolled strip to form a cold-rolled strip; decarburization-annealing the cold-rolled strip; applying an annealing separator on the strip; final-annealing the strip; measuring a primary-recrystallized grain size in the stage after completion of a primary recrystallization during the decarburization annealing and before completion of a secondary recrystallization during the final annealing; and controlling in that stage the subsequent grain growth of primary-recrystallized grains by an absorption of nitrogen into the steel strip in accordance with the measured grain size.

摘要翻译： 一种具有优异磁特性的晶粒取向电工钢板的制造方法，包括以下步骤：加热至低于1280℃的钢坯，其包含0.025〜0.075重量％的C，2.5〜4.5重量％的Si， 0.010〜0.060重量％的酸溶性Al，0.0030〜0.0130重量％的N，0.014重量％以下（S + 0.405 Se），0.05〜0.8重量％的Mn，余量由Fe和不可避免的杂质构成。 热轧如此加热的板坯以形成热轧带材; 冷轧热轧钢带以形成冷轧带材; 对冷轧带材进行脱碳退火; 在带上施加退火分离器; 对带进行最终退火; 在脱碳退火期间完成一次再结晶之后的阶段和在最终退火期间二次再结晶完成之前的阶段中测量一次再结晶的晶粒尺寸; 并且在该阶段通过根据测量的晶粒尺寸将氮吸收到钢带中来控制一次再结晶晶粒随后的晶粒生长。

公开(公告)号：US09721706B2

公开(公告)日：2017-08-01

申请号：US13982691

申请日：2012-08-17

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

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

IPC分类号： H01F1/01 ,  H01F1/04 ,  B32B15/01 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C21D8/12 ,  H01F41/02 ,  C22C1/02 ,  H01F1/16

CPC分类号： H01F1/04 ,  B32B15/011 ,  C21D8/1233 ,  C21D8/1272 ,  C21D2211/004 ,  C22C1/02 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  H01F1/01 ,  H01F1/16 ,  H01F41/0233 ,  Y10T428/12965

摘要： 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, when contents of Ti, V, Zr, Nb, and C (mass %) are represented as [Ti], [V], [Zr], [Nb], and [C] respectively. A matrix of a metal structure is a ferrite phase, and the metal structure does not contain a non-recrystallized structure. An average grain size of ferrite grains constituting the ferrite phase is not less than 30 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 1 particle/μm3 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.

公开(公告)号：US20140113159A1

公开(公告)日：2014-04-24

申请号：US14129334

申请日：2012-08-16

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

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

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

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US20130292006A1

公开(公告)日：2013-11-07

申请号：US13978925

申请日：2012-01-12

申请人： Fumiaki Takahashi ,  Yoshiyuki Ushigami ,  Kazumi Mizukami ,  Shuichi Nakamura ,  Norikazu Fujii ,  Norihiro Yamamoto ,  Masahide Urago

发明人： Fumiaki Takahashi ,  Yoshiyuki Ushigami ,  Kazumi Mizukami ,  Shuichi Nakamura ,  Norikazu Fujii ,  Norihiro Yamamoto ,  Masahide Urago

IPC分类号： C23C8/02 ,  H01F1/01

CPC分类号： C23C8/02 ,  C21D6/008 ,  C21D8/1255 ,  C21D8/1277 ,  C21D8/1283 ,  C21D2201/05 ,  C22C38/001 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/34 ,  C22C38/60 ,  C23C28/04 ,  C23C28/042 ,  H01F1/01 ,  H01F1/18

摘要： A grain-oriented electrical steel sheet being a grain-oriented electrical steel sheet containing Si of 0.8 mass % to 7 mass %, Mn of 0.05 mass % to 1 mass %, B of 0.0005 mass % to 0.0080 mass %, each content of Al, C, N, S, and Se of 0.005 mass % or less, and a balance being composed of Fe and inevitable impurities and having a glass coating film made of composite oxide mainly composed of forsterite on the steel sheet surface, in which when glow discharge optical emission spectrometry (GDS) to the surface of a secondary coating film formed on the surface of the glass coating film under a predetermined condition is performed, a peak, of B, in emission intensity having a peak position in emission intensity different from a peak position, of Mg, in emission intensity is obtained and the peak position, of B, in emission intensity from the steel sheet surface is deeper than the peak position, of Mg, in emission intensity.

摘要翻译： 一种晶粒取向电工钢板，其为含有0.8质量％〜7质量％的Si，0.05质量％〜1质量％的Mn，0.0005质量％〜0.0080质量％的B，Al ，C，N，S和Se为0.005质量％以下，余量由Fe和不可避免的杂质构成，并且在钢板表面具有以主要由镁橄榄石构成的复合氧化物的玻璃涂膜， 在预定条件下，在玻璃涂膜的表面上形成的二次涂膜的表面进行放电发光光谱（GDS），发光强度的峰值B的发光强度的峰值不同于 获得发光强度的Mg的峰值位置，从钢板表面的发光强度的B的峰值位置比发光强度的Mg的峰值位置更深。