公开(公告)号：US20130292006A1

公开(公告)日：2013-11-07

申请号：US13978925

申请日：2012-01-12

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

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

IPC: C23C8/02 ,  H01F1/01

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130167982A1

公开(公告)日：2013-07-04

申请号：US13806877

申请日：2011-06-29

Applicant: Hiroi Yamaguchi ,  Seiji Okabe ,  Kunihiro Senda ,  Takeshi Omura

Inventor： Hiroi Yamaguchi ,  Seiji Okabe ,  Kunihiro Senda ,  Takeshi Omura

IPC: H01F41/22

CPC classification number: H01F41/22 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1255 ,  C21D8/1261 ,  C21D8/1266 ,  C21D8/1283 ,  C21D8/1288 ,  C21D8/1294 ,  C21D10/005 ,  C21D2201/05 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/18 ,  C22C38/60 ,  H01F1/16

Abstract: A method of manufacturing a grain oriented electrical steel sheet includes subjecting a steel slab to rolling to obtain a steel sheet, subjecting the steel sheet to decarburizing annealing, coating of an annealing separator mainly composed of MgO onto a surface of the steel sheet, and final annealing to obtain a grain oriented electrical steel sheet having at least 4.0 g/m2 of coating weight of forsterite coating formed on the surface of the steel sheet, 0.9 μm or less of the average grain size of the forsterite coating, and at least 1.91 T of magnetic flux density B8; and linearly irradiating a surface of the grain oriented electrical steel sheet this obtained with a laser having wavelength of 0.2 μm to 0.9 μm in a direction intersecting the rolling direction of the steel sheet.

Abstract translation: 晶粒取向电工钢板的制造方法包括对钢板进行轧制以获得钢板，对钢板进行脱碳退火，将主要由MgO组成的退火分离器涂覆在钢板的表面上，最终 进行退火，得到在钢板表面形成的镁橄榄石涂层的涂层重量至少为4.0g / m 2的晶粒取向电工钢板，镁橄榄石涂层的平均粒径为0.9μm以下，至少为1.91T 的磁通密度B8; 并且在与钢板的轧制方向交叉的方向上用波长为0.2μm〜0.9μm的激光线取得的晶粒取向电工钢板的表面线性地照射。

公开(公告)号：US20130161301A1

公开(公告)日：2013-06-27

申请号：US13806926

申请日：2011-06-29

Applicant: Seiji Okabe ,  Hiroi Yamaguchi ,  Takeshi Omura

Inventor： Seiji Okabe ,  Hiroi Yamaguchi ,  Takeshi Omura

IPC: B23K26/00

CPC classification number: B23K26/0846 ,  B23K26/00 ,  B23K2101/16 ,  B23K2103/04 ,  C21D8/12 ,  C21D8/1272 ,  C21D8/1294 ,  C21D10/00 ,  C21D2201/05 ,  C22C38/00 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/18 ,  C22C38/60

Abstract: A device reduces dust for safely preventing laser-irradiation capacity from decreasing due to contamination and reliably reducing iron loss of a grain oriented electrical steel sheet. The device improves iron loss properties of a grain oriented electrical steel sheet by irradiating its surface with laser to reduce iron loss, wherein, distance between a laser beam emission port and a laser irradiation point is L (mm); laser irradiation angle formed by a line linking the emission port and the irradiation point with respect to a direction vertical to the sheet is θ (°); and L≧50, the emission port is positioned such that L and θ satisfy: 60−0.3L≦θ≦60 when L≦100 40−0.1L≦θ≦60 when 100 400.

Abstract translation: 装置减少灰尘，以安全地防止激光照射能力由于污染而降低，并可靠地降低了取向电工钢板的铁损。 该装置通过用激光照射其表面来改善晶粒取向电工钢板的铁损性能，以减少铁损，其中激光束射出口和激光照射点之间的距离为L（mm）; 相对于垂直于片材的方向通过连接发射端口和照射点的线形成的激光照射角度为θ（°）; 并且L> = 50时，当L <100时，当L <100时，当L> 100时，L和θθ满足： 400。

公开(公告)号：US08460481B2

公开(公告)日：2013-06-11

申请号：US12736417

申请日：2009-04-09

Applicant: Masafumi Azuma ,  Noriyuki Suzuki ,  Naoki Maruyama ,  Naoki Yoshinaga ,  Akinobu Murasato

Inventor： Masafumi Azuma ,  Noriyuki Suzuki ,  Naoki Maruyama ,  Naoki Yoshinaga ,  Akinobu Murasato

IPC: C22C38/02 ,  C22C38/04 ,  C21D8/04 ,  C23C2/06

CPC classification number: C23C2/28 ,  C21D8/0236 ,  C21D8/0273 ,  C21D9/46 ,  C21D9/48 ,  C21D2201/05 ,  C21D2211/004 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C23C2/02 ,  C23C2/06

Abstract: The invention is directed to providing, for application in automobiles, construction materials, household appliances and the like, high-strength sheets excellent in formability properties such as hole expansibility and ductility, and also in fatigue resistance, characterized in comprising, in specified contents expressed in mass %, C, Si, Mn, P, S, Al, N and O and a balance of iron and unavoidable impurities, and having a steel sheet structure composed mainly of ferrite and hard structures, a crystal orientation difference between some ferrite adjacent to hard structures and the hard structures of less than 9°, and a maximum tensile strength of 540 MPa or greater.

Abstract translation: 本发明旨在提供在汽车，建筑材料，家用电器等中的应用，具有优异的成型性能如扩孔性和延展性以及耐疲劳性的高强度片材，其特征在于，在特定内容中表达 以质量％计，C，Si，Mn，P，S，Al，N和O以及铁和不可避免的杂质的平衡，并且具有主要由铁素体和硬质结构组成的钢板结构，一些铁素体相邻的晶体取向差异 硬结构和硬结构小于9°，最大拉伸强度为540MPa或更大。

公开(公告)号：US20130143003A1

公开(公告)日：2013-06-06

申请号：US13814344

申请日：2011-08-04

Applicant: Masanori Takenaka ,  Minoru Takashima ,  Hiroi Yamaguchi ,  Takeshi Omura

Inventor： Masanori Takenaka ,  Minoru Takashima ,  Hiroi Yamaguchi ,  Takeshi Omura

IPC: H01F1/18

CPC classification number: H01F1/18 ,  C21D1/38 ,  C21D8/12 ,  C21D8/1277 ,  C21D8/1283 ,  C21D2201/05 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  Y10T428/24628

Abstract: A grain oriented electrical steel sheet has sufficiently low iron loss and having less conventionally-concerned warpage of the steel sheet even after the steel sheet is subjected to artificial magnetic domain refining treatment, where strain-introducing treatment is conducted with high energy so that an iron loss-reducing effect can be maximized. The grain oriented electrical steel sheet is obtained by adjusting tension to be applied to a tension-applying insulating coating, or to both surfaces of the steel sheet by the tension-applying insulating coating, before strain-introducing treatment in the range of Formula (1): 1.0≦(tension applied to non-strain-introduced surface)/(tension applied to strain-introduced surface)≦2.0  (1), and by controlling the amount of warpage of the steel sheet toward the strain-introduced surface side after strain-introducing treatment in the range of 1 mm or more and 10 mm or less.

Abstract translation: 即使在对钢板进行人造磁畴精制处理之后，晶粒取向电工钢板也具有足够低的铁损，并且具有较少的常规的钢板翘曲，其中以高能量进行应变导入处理， 减少损失的效果可以最大化。 晶粒取向电工钢板通过在应变导入处理之前通过张力施加绝缘涂层调节施加到张力施加绝缘涂层的张力或钢板的两个表面，在式（1）的范围内 ）：2.0（1）中的1.0 @（施加到非应变导入表面的张力）/（施加到应变导入表面的张力）@ 2.0（1），并且通过控制钢板朝向应变导入表面侧的翘曲量 应变引入处理在1mm以上且10mm以下的范围内。

公开(公告)号：US20130125601A1

公开(公告)日：2013-05-23

申请号：US13813862

申请日：2011-07-29

Applicant: Takeshi Kubota ,  Masahiro Fujikura

Inventor： Takeshi Kubota ,  Masahiro Fujikura

IPC: B21B15/00

CPC classification number: B21B15/00 ,  C21D6/008 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1266 ,  C21D8/1272 ,  C21D9/46 ,  C21D2201/05 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16 ,  C22C38/18 ,  C22C38/34 ,  H01F1/16

Abstract: A steel having a predetermined composition is hot-rolled so as to form a steel strip, the steel strip is subjected to first cold-rolling, the steel strip is subjected to intermediate annealing, the steel strip is subjected to second cold-rolling, and the steel strip is subjected to finish annealing. A finish temperature in the hot-rolling is 900° C. or less, annealing is not performed between the hot-rolling and the first cold-rolling, and a rolling reduction in the second cold-rolling is not less than 40% nor more than 85%.

Abstract translation: 将具有预定组成的钢热轧成钢带，对钢带进行第一次冷轧，对钢带进行中间退火，对钢带进行第二次冷轧， 对钢带进行最终退火。 热轧时的终轧温度为900℃以下，在热轧和第一次冷轧之间不进行退火，第二次冷轧的轧制压下率也不低于40％ 超过85％。

公开(公告)号：US08409368B2

公开(公告)日：2013-04-02

申请号：US13261144

申请日：2010-07-15

Applicant: Yoshiyuki Ushigami ,  Norikazu Fujii

Inventor： Yoshiyuki Ushigami ,  Norikazu Fujii

IPC: H01F1/147 ,  H01F1/18

CPC classification number: C23C8/26 ,  C21D8/12 ,  C21D8/1255 ,  C21D8/1283 ,  C21D2201/05 ,  C21D2211/004 ,  C22C38/00 ,  C22C38/06 ,  C22C38/60 ,  C23C8/02 ,  C23C8/80 ,  H01F1/16

Abstract: A nitriding treatment (Step S6) in which an N content of a decarburization-annealed steel strip is increased is performed between start of a decarburization annealing (Step S4) and occurrence of secondary recrystallization in a finish annealing (Step S5). In hot rolling (Step S1), a silicon steel material is held in a temperature range between 1000° C. and 800° C. for 300 seconds or longer, and then finish rolling is performed.

Abstract translation: 在脱碳退火开始（步骤S4）和最终退火中发生二次再结晶之间进行脱碳退火钢带的N含量增加的氮化处理（步骤S6）（步骤S5）。 在热轧（步骤S1）中，将硅钢材料在1000℃〜800℃的温度范围内保持300秒以上，然后进行精轧。

公开(公告)号：US20130068449A1

公开(公告)日：2013-03-21

申请号：US13235070

申请日：2011-09-16

Applicant: Raju PILLAI ,  Jiinjen A. SUE ,  Parul W. DHALL

Inventor： Raju PILLAI ,  Jiinjen A. SUE ,  Parul W. DHALL

IPC: E21B43/00 ,  E21B17/10 ,  C21D6/00 ,  C22C38/22 ,  C21D9/00 ,  E21B10/36 ,  C22C38/18

CPC classification number: C21D6/00 ,  B23K26/32 ,  B23K26/34 ,  B23K35/0244 ,  B23K35/308 ,  B23K2103/50 ,  C21D1/09 ,  C21D1/38 ,  C21D6/002 ,  C21D9/00 ,  C21D2201/05 ,  C21D2211/001 ,  C21D2211/008 ,  C22C33/0257 ,  C22C38/02 ,  C22C38/18 ,  C22C38/22 ,  C22C38/24 ,  E21B10/46

Abstract: A hardfacing composition composed of an Fe—Cr alloy. The alloy is comprised of 80 wt % iron, about 2 wt % to about 20 wt % Cr, less than 1 wt % Si and less than 1 wt % C. The alloy's microstructure is at least 80 vol % martensite; and less than 20 vol % austenite.

Abstract translation: 由Fe-Cr合金构成的表面硬化组合物。 该合金由80重量％的铁，约2重量％至约20重量％的Cr，小于1重量％的Si和小于1重量％的C组成。该合金的显微组织为至少80体积％的马氏体; 和小于20体积％的奥氏体。

公开(公告)号：US08268097B2

公开(公告)日：2012-09-18

申请号：US12736257

申请日：2009-03-30

Applicant: Fumiaki Takahashi ,  Kazutoshi Takeda ,  Hiroyasu Fujii ,  Shuichi Yamazaki ,  Yoshiaki Natori

Inventor： Fumiaki Takahashi ,  Kazutoshi Takeda ,  Hiroyasu Fujii ,  Shuichi Yamazaki ,  Yoshiaki Natori

IPC: H01F1/18

CPC classification number: C23C22/74 ,  C21D8/1288 ,  C21D2201/05 ,  C23C22/20 ,  C23C22/22 ,  H01F1/14725 ,  H01F1/18

Abstract: A grain-oriented electrical steel sheet has a tension film that does not include chromium. In the present invention, the tension film, including a phosphate and silica as constituents, includes a manganese compound and a potassium compound. The mole ratio K/Mn of potassium to manganese in the film is set to a certain range. The film can be produced by preparing a coating solution by adding a compound, which includes the phosphate and the silica and also includes the potassium and the manganese, and applying the coating solution on a grain-oriented electrical steel sheet after final annealing is completed, followed by drying and baking.

Abstract translation: 晶粒取向电工钢板具有不含铬的张力膜。 在本发明中，包含磷酸盐和二氧化硅作为成分的张力膜包括锰化合物和钾化合物。 膜中钾与锰的摩尔比K / Mn设定在一定范围内。 可以通过添加包括磷酸盐和二氧化硅的化合物并且还包括钾和锰来制备涂布溶液并在最终退火完成之后将涂布溶液施加到方向性电磁钢板上来制备膜， 然后干燥和烘烤。

公开(公告)号：US07857915B2

公开(公告)日：2010-12-28

申请号：US11921369

申请日：2006-05-19

Applicant: Tomoji Kumano ,  Kenichi Murakami ,  Yoshiyuki Ushigami

Inventor： Tomoji Kumano ,  Kenichi Murakami ,  Yoshiyuki Ushigami

IPC: H01F1/147 ,  H01F1/18

CPC classification number: H01F1/16 ,  C21D8/12 ,  C21D8/1205 ,  C21D8/1244 ,  C21D8/1261 ,  C21D8/1272 ,  C21D2201/05 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/16 ,  C22C38/60 ,  C23C8/02 ,  C23C8/80 ,  H01F1/14791

Abstract: Reheating a grain-oriented electrical steel sheet slab comprising predetermined components to 1280° C. or more and a solid solution temperature of inhibitor substances or more, hot rolling, annealing, and cold rolling it, decarburization annealing it, nitriding it in a strip running state, coating an annealing separator, and finish annealing it during which making a precipitation ratio of N as AlN after hot rolling 20% or less, making a mean grain size of primary recrystallization 7 μm to less than 20 μm, and making a nitrogen increase ΔN in the nitridation within a range of Equation (1) and making nitrogen contents σN1 and σN2 (front and back, mass %) of a 20% thickness portion of one surface of the steel strip (sheet) within a range of Equation (2): 0.007−([N]−14/48×[Ti])≦ΔN≦[solAl]×14/27−([N]−14/48×[Ti])+0.0025  Equation (1) |σN1−σN2|/ΔN≦0.35  Equation (2).

Abstract translation: 将包含预定成分的晶粒取向电工钢板坯加热至1280℃以上，抑制物质的固溶温度以上，热轧，退火，冷轧后，进行脱碳退火，将其在条带运行中氮化 状态，涂布退火分离剂，并且在热轧后使NN作为AlN的析出比为20％以下进行最终退火，使一次再结晶的平均粒径为7μm〜小于20μm，并使氮增加 ＆Dgr; N在等式（1）的范围内的氮化中，并且使钢带（片材）的一个表面的20％厚度部分的氮含量和N1和＆lt; N 2（前和后质量％）在 方程式（2）的范围：0.007 - （[N] -14 / 48×[Ti]）＆nlE;＆Dgr; N＆nlE; [solAl]×14/27 - （[N] -14 / 48×[Ti] +0.0025等式（1）|＆sgr; N1-＆sgr; N2 | /＆Dgr; N＆nlE; 0.35等式（2）。