公开(公告)号：JP2015004090A

公开(公告)日：2015-01-08

申请号：JP2013128825

申请日：2013-06-19

Applicant: Jfeスチール株式会社 ,  Jfe Steel Corp

Inventor： OKABE SEIJI ,  INOUE HIROTAKA ,  TAKAGI SHIGEHIRO

IPC: C22C38/00 ,  H01F1/16

CPC classification number: H01F3/02 ,  C21D8/125 ,  C21D8/1277 ,  C21D8/1288 ,  C22C38/00 ,  C22C38/001 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/18 ,  C22C38/60 ,  H01F1/16 ,  H01F27/245

Abstract: 【課題】変圧器の鉄損をより低減でき、結果として変圧器の高効率化に寄与する方向性電磁鋼板を提供することを目的とする。【解決手段】鋼板の圧延方向と交差する方向へ線状に歪みを導入することを、前記圧延方向に間隔を置いて繰り返して磁区細分化を施した方向性電磁鋼板であって、前記歪みの圧延方向への繰り返し間隔をd(mm)とし、前記鋼板を平坦面上に置いたときの、該鋼板表面の歪みを導入した線部分中心における前記平坦面からの高さと、該線部分の相互間隔の等分点における前記平坦面からの高さとの差の平均値をh(mm)としたとき、前記dに対する前記hの比h/dが、0.0025以上0.015以下であることを特徴とする方向性電磁鋼板。【選択図】図1

Abstract translation: 要解决的问题：提供一种能够降低变压器中的铁损的取向电磁钢板，从而有助于变压器的高效率。解决方案：提供一种通过重复线性引入进行磁畴分割的取向磁性钢板 在与轧制方向交叉的方向上沿轧制方向间隔的应变。 取向电磁钢板的特征在于，当将轧制方向上的应变的重复间隔设为d（mm）时，并且当从直线部分的中心处的平坦表面的高度之间的差的平均值 在钢板被放置在平坦表面上时，引入应变的钢板的表面和在线性部分之间的间隔的等分点处的平坦表面的高度为h（mm） 的h至d（（h / d））在0.0025-0.015的范围内。

公开(公告)号：JP2014189832A

公开(公告)日：2014-10-06

申请号：JP2013066128

申请日：2013-03-27

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： TAKAGI SHIGEHIRO ,  HANAZAWA KAZUHIRO

IPC: C21D8/12 ,  H01F1/16

CPC classification number: Y02P10/212

Abstract: PROBLEM TO BE SOLVED: To accurately synchronize convergence current position control with deflection without inviting film damage of an irradiation part, thereby magnetic domain fragmentation and low core loss making are effectively achieved, even when a scan speed (deflection speed) of an electron beam is made a high speed.SOLUTION: An electron beam irradiation method is that an electron beam is performed by a reciprocating scan in a straight line shape over at least 100 mm on the steel plate in a direction intersecting a rolling direction of a steel plate, and a linear recycling magnetic domain part is introduced to the steel plate, and is that in an irradiation pattern in which introduction of the recycling magnetic domain part by electron beam irradiation is made either a going process or a backing process, and when a beam scan speed of a process in which the introduction of the recycling magnetic domain part by the electron beam irradiation is performed is assumed Vp(m/s), the beam scan speed of a process in which the introduction of the recycling magnetic domain part by the electron beam irradiation is not performed is assumed Vs(m/s), the relation of the following formula (1): 30 m/s≤Vp≤Vs/3 --- (1) is satisfied about these Vp and Vs.

Abstract translation: 要解决的问题：为了精确地同步收敛当前位置控制与偏转而不引起照射部分的膜损伤，因此即使当电子束的扫描速度（偏转速度）为 制造高速。电子束照射方法是通过在钢板上沿与钢板的轧制方向交叉的方向以至少100mm的直线形状的往复扫描进行电子束，以及 线性再循环磁畴部分被引入到钢板中，并且是通过电子束照射引入再循环磁畴部分的进行照射的照射模式是进行处理或背景处理，并且当光束扫描速度 进行通过电子束照射引入再循环磁畴部分的处理的假定为Vp（m / s），bea 假定不进行通过电子束照射的再循环磁畴部的引入的处理的m扫描速度为Vs（m / s），下式（1）的关系为30m /s≤Vp≤ Vs / 3 ---（1）对于这些Vp和Vs.

公开(公告)号：JP2014019901A

公开(公告)日：2014-02-03

申请号：JP2012159323

申请日：2012-07-18

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： MATSUDA HIROSHI ,  TAKAGI SHIGEHIRO ,  YAMAGUCHI HIROSHI ,  TAKASHIMA MINORU

IPC: C21D8/12 ,  C22C38/00 ,  C22C38/60 ,  H01F1/16

Abstract: PROBLEM TO BE SOLVED: To provide a magnetic fragmentation treatment method capable of suppressing film breakage even if a high energy beam is irradiated under the conditions where the improving effect of magnetic properties can be sufficiently enjoyed and further having no need of the recoat of an insulating film, and to provide a grain oriented silicon steel sheet produced by the method.SOLUTION: The method for producing a grain oriented silicon steel sheet is characterized in that, in a method for producing a grain oriented silicon steel sheet in which the surface of a grain oriented silicon steel sheet obtained by forming a tensile insulating film whose film tension at ordinary temperature is 5 MPa or higher is irradiated with an electron beam to a direction crossed with a rolling direction, a dot-shaped or linear heat strain region is introduced, and magnetic fragmentation treatment is performed, the irradiation of the electron beam is performed in such a manner that the steel sheet is heated to 50 to 600°C, and, further, more preferably, it is performed in a state where compression stress is applied to the surface of the steel sheet.

Abstract translation: 要解决的问题：提供即使在能够充分享受磁特性的改善效果的条件下照射高能量束也能够抑制膜断裂的磁性碎裂处理方法，并且不需要重新涂覆绝缘体 薄膜，并提供通过该方法制造的晶粒取向硅钢板。解决方案：晶粒取向硅钢板的制造方法的特征在于，在晶粒取向硅钢板的制造方法中， 通过形成在常温下的膜张力为5MPa以上的拉伸绝缘膜通过电子束照射到与轧制方向交叉的方向，点状或线状的热应变区域而获得的晶粒取向硅钢板， 进行磁碎裂处理，电子束的照射以钢板的方式进行 t加热至50〜600℃，进一步优选在对钢板表面施加压缩应力的状态下进行。

公开(公告)号：JP2013136824A

公开(公告)日：2013-07-11

申请号：JP2011289200

申请日：2011-12-28

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： TAKAGI SHIGEHIRO ,  OKABE SEIJI ,  INOUE HIROTAKA ,  KOMATSUBARA MICHIRO

IPC: C22C38/00 ,  B23K15/00 ,  B23K26/00 ,  C21D8/12 ,  C22C38/04 ,  C22C38/60 ,  H01F1/16

CPC classification number: H01F1/14775 ,  B23K15/0006 ,  B23K26/0006 ,  B23K26/0066 ,  B23K26/0081 ,  B23K26/0622 ,  B23K26/082 ,  B23K2201/18 ,  B23K2201/36 ,  B23K2203/04 ,  B23K2203/50 ,  C21D6/008 ,  C21D8/1294 ,  C21D2201/05 ,  C22C38/00 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/18 ,  C22C38/34 ,  C22C38/60 ,  H01F1/16 ,  H01F41/02

Abstract: PROBLEM TO BE SOLVED: To provide a grain-oriented electric steel sheet in which both core loss and noise are reduced.SOLUTION: In an electric steel sheet, regions with locally high lattice defect density are formed on a surface of or within the steel sheet and magnetic domains are refined. In the electric steel sheet, the hardness of the high lattice defect density regions measured by a micro Vickers hardness meter is equal to or less than the hardness of other regions.

Abstract translation: 要解决的问题：提供一种其磁芯损耗和噪声都降低的方向性电磁钢板。解决方案：在电工钢板中，在钢板表面或钢板内形成具有局部高晶格缺陷密度的区域 并且磁畴被精制。 在电动钢板中，通过微维氏硬度计测定的高晶格缺陷密度区域的硬度等于或小于其他区域的硬度。

公开(公告)号：JP2013072094A

公开(公告)日：2013-04-22

申请号：JP2011209795

申请日：2011-09-26

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： TAKAGI SHIGEHIRO ,  YAMAGUCHI HIROSHI ,  OMURA TAKESHI ,  INOUE HIROTAKA ,  OKABE SEIJI

IPC: C21D8/12 ,  B23K15/00 ,  B23K15/02 ,  H01F1/16

Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for producing a grain-oriented electrical steel sheet that sufficiently reduce core loss of the grain-oriented electrical steel sheet and also perform high-speed electron beam irradiation treatment by using an appropriate number of electron guns.SOLUTION: When scanning in the rolling direction is repeated at intervals, in which electron beams are emitted from the electron guns across the rolling direction, while the grain-oriented electrical steel sheet is transferred along the transfer line advancing in the rolling direction, the scanning of the electron beams is performed by using N electron guns with the electron beam diameter in the grain-oriented electrical steel sheet is 0.25 mm or less. The N electron guns satisfy the conditions: N≥L×V/((v-V)×s), and v≥20 m/s, when the width of the grain-oriented electrical steel sheet is L (m), the transfer rate of the grain-oriented electrical steel sheet is V(m/s), the scanning rate of the electron beams on the grain-oriented electrical steel sheet is v (m), and the distance between the electron beam scanning lines in the rolling direction is s.

Abstract translation: 解决的问题：提供一种能够充分降低取向性电磁钢板的铁损的方向和制造方法和设备，并且还可以通过使用方法和方法进行高速电子束照射处理 适当数量的电子枪。 解决方案：当沿着轧制方向扫描时，电子枪沿着轧制方向从电子枪发射的间隔重复，而方向性电磁钢板沿着沿轧制方向前进的转移线传递 通过使用在方向性电磁钢板中的电子束直径的N个电子枪进行电子束的扫描为0.25mm以下。 N电子枪满足条件：N≥L×V 0 /（（v 2 -V 0 2 ） 0.5 ×s），v≥20m ​​/ s， 晶粒取向电工钢板的转印速度为L（m）时，晶粒取向电工钢板的转印速度为V 0 （m / s） 晶粒取向电工钢板上的电子束为v（m），电子束扫描线的轧制方向的距离为s。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012180545A

公开(公告)日：2012-09-20

申请号：JP2011043145

申请日：2011-02-28

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： YAMAGUCHI HIROSHI ,  OKABE SEIJI ,  OMURA TAKESHI ,  TAKAGI SHIGEHIRO ,  INOUE HIROTAKA

IPC: C21D8/12 ,  B23K15/00 ,  B23K15/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/04 ,  C22C38/60 ,  H01F1/16

Abstract: PROBLEM TO BE SOLVED: To obtain a grain-oriented magnetic steel sheet with which in the case of manufacturing a stacked transformer, especially, when the transformer is manufactured by using the grain-oriented magnetic steel sheet having magnetic flux density Bof ≥1.93T, even there is a part where the magnetic flux is shifted from a rolling direction and curved, such as a corner part, an iron loss deterioration can effectively be suppressed.SOLUTION: The surface of the steel sheet is irradiated with an electron beam prior to primary recrystallization annealing, and the surface of the steel sheet is made a flat surface having arithmetic average roughness RA of ≤0.15 μm.

Abstract translation: 要解决的问题：为了获得在制造堆叠式变压器的情况下特别是通过使用具有磁通密度B'的晶粒取向电磁钢板制造变压器时的晶粒取向电磁钢板， SB POS =“POST”> 8 为≥1.93T，即使存在磁通量从滚动方向偏移并且弯曲的部分，例如角部，铁损劣化也能够被有效地抑制。 解决方案：在一次再结晶退火之前，用电子束照射钢板的表面，并将钢板的表面制成具有≤0.15μm的算术平均粗糙度RA的平坦表面。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012180543A

公开(公告)日：2012-09-20

申请号：JP2011043022

申请日：2011-02-28

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： OKABE SEIJI ,  YAMAGUCHI HIROSHI ,  OMURA TAKESHI ,  TAKAGI SHIGEHIRO

IPC: C21D8/12 ,  B23K15/00 ,  C22C38/00 ,  C22C38/60 ,  H01F1/16

Abstract: PROBLEM TO BE SOLVED: To provide a method for homogenizing an effect of magnetic domain refinement across a width direction of a steel sheet when irradiating an electron beam to a wide grain-oriented electromagnetic steel sheet or when downsizing an electron beam irradiation unit.SOLUTION: When continuously irradiating the electron beam to a moving grain-oriented electromagnetic steel sheet in its width direction, a converging current of the electron beam is adjusted according to an incidence angle of the electron beam to the steel sheet surface so as to change the area of a beam spot, thereby homogenizing the energy density across the width direction of the beam spot.

Abstract translation: 要解决的问题：提供一种当向宽的晶粒取向电磁钢板照射电子束时，或者当电子束照射单元小型化时，使钢板宽度方向上的磁畴细化的效果均匀化的方法 。 解决方案：当电子束在宽度方向上连续地向移动的晶粒取向电磁钢板照射时，根据电子束对钢板表面的入射角度调整电子束的会聚电流，以便 以改变束斑的面积，从而使束斑的宽度方向上的能量密度均匀化。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012031458A

公开(公告)日：2012-02-16

申请号：JP2010170692

申请日：2010-07-29

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： TAKAGI SHIGEHIRO ,  HANAZAWA KAZUHIRO ,  FUJITA KOICHIRO

IPC: C22C38/00 ,  C21D9/46 ,  C22C38/60

Abstract: PROBLEM TO BE SOLVED: To provide a high-strength cold-rolled thin steel sheet which is inexpensive and superior in formability.SOLUTION: A steel including 0.010-0.060 mass% C, ≤0.05 mass% Al, and 0.0060-0.0200 mass% N, and having a ratio of effective N content Nef/Al content of ≥0.2 is heated to 1,000°C or higher, subjected to finish rolling at a ferrite transformation start temperature or higher and taken up at a temperature TA=[700-10(Al/Nef)] or lower. The cold rolled sheet is subjected to a heat treatment of carrying out heating at a temperature of 250°C or higher and the TA or lower, and at a temperature lower than a ferrite recrystallization starting temperature. When the finish rolling outlet side temperature is lower than the ferrite transformation start temperature and a half value of a diffraction peak from a (220) plane in X ray diffraction of a hot-rolled plate is ≥0.30°, the rolling reduction of the cold rolling may be adjusted so that the total of the rolling reduction in hot rolling in a temperature range of lower than the ferrite transformation start temperature and the rolling reduction in cold rolling is 30-80%. Then, a high strength cold-rolled thin steel sheet superior in strength and rolling balance is thereby attained.

Abstract translation: 要解决的问题：提供廉价且成形性优异的高强度冷轧薄钢板。

解决方案：将含有0.010-0.060质量％C，≤0.05质量％Al和0.0060-0.0200质量％N的钢，其有效N含量Nef / Al含量≥0.2的比例加热至1,000℃ 以上，在铁素体相变开始温度以上进行精轧，并以TA = [700-10（Al / Nef）]以下的温度吸收。 对该冷轧板进行250℃以上的温度，TA以下的加热处理和低于铁素体再结晶开始温度的加热处理。 当精轧出口侧温度低于铁素体相变开始温度时，热轧板的X射线衍射中的（220）面的衍射峰的半值为≥0.30°时，冷轧的压下率 可以调节轧制，使得在低于铁素体相变开始温度的温度范围内的热轧的轧制总计和冷轧的轧制压下率为30-80％。 然后，由此获得强度和滚动平衡优异的高强度冷轧薄钢板。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011144428A

公开(公告)日：2011-07-28

申请号：JP2010006554

申请日：2010-01-15

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： TAKAGI SHIGEHIRO ,  FUJITA KOICHIRO ,  HANAZAWA KAZUHIRO ,  KIZU TARO

IPC: C22C38/00 ,  C21D9/46 ,  C22C38/12 ,  C22C38/14

CPC classification number: C21D9/46 ,  C21D8/0236 ,  C21D8/0273 ,  C22C38/12

Abstract: PROBLEM TO BE SOLVED: To provide a cold rolled steel sheet which has excellent moldability and shape fixability, and has excellent machine production stability, and a method for producing the same.
SOLUTION: The cold rolled steel sheet has a composition comprising 0.0010 to 0.0030% C, ≤0.05% Si, 0.1 to 0.3% Mn, ≤0.05% P, ≤0.02% S, 0.02 to 0.10% Al, ≤0.005% N, 0.010 to 0.030% Nb and B: 0.0010≤B-11/14×N≤0.0050%, and the balance iron with inevitable impurities. Then, the mean elongation (El
m ) is ≥42%, and the mean r value (r
m ) is 1.2 to 1.6. Further, in annealing after cold rolling, the steel sheet is held at a soaking temperature of (820+Nb/15+B-CR) to 860°C for 30 to 200 sec in accordance with a draft CR(%), the Nb content (mass ppm) and the B content (mass ppm), thus the steel sheet can be stably produced by an actual machine without controlling the soaking temperature by pinpoints.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 解决的问题：提供一种成型性和定形性优异，机械生产稳定性优异的冷轧钢板及其制造方法。 ＆lt; P＆gt;解决方案：冷轧钢板的组成为：含有0.0010〜0.0030％的C，≤0.05％的Si，0.1〜0.3％的Mn，≤0.05％的P，≤0.02％的S，0.02〜0.10％的Al，≤0.005％ N，0.010〜0.030％Nb，B：0.0010≤B-11​​/14×N≤0.0050％，余量为铁与不可避免的杂质。 然后，平均伸长率（El m ）为≥42％，平均r值（r m ）为1.2〜1.6。 此外，在冷轧后的退火中，根据通气量（％），钢板将（820 + Nb / 15 + B-CR）的均热温度保持在860℃30〜200秒，Nb 含量（质量ppm）和B含量（质量ppm），因此可以通过实际机器稳定地制造钢板，而不需要精确地控制均热温度。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010255069A

公开(公告)日：2010-11-11

申请号：JP2009108820

申请日：2009-04-28

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： YASUHARA HIDEKO ,  FUJITA KOICHIRO ,  KIZU TARO ,  HANAZAWA KAZUHIRO ,  TAKAGI SHIGEHIRO

IPC: C22C38/00 ,  C21D9/46 ,  C22C38/06 ,  C22C38/54

CPC classification number: C21D8/0226 ,  C21D8/0236 ,  C21D8/0273 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

Abstract: PROBLEM TO BE SOLVED: To provide a cold-rolled steel sheet excellent in a formability, a shape-fixability and surface-appearancy which has both of a workability and the shape-fixability in a low-carbon steel, can be subjected to a deep-drawing, a bending and a bulgin, can secure the shape needed to large-sized parts, and is high in flatness without causing any appearance defects, and to provide a manufacturing method thereof.
SOLUTION: This cold-rolled steel sheet is characterized in that the steel has composition composed, by mass, of 0.030-0.060% C, ≤0.05% Si, 0.1-0.3% Mn, ≤0.05% P, ≤0.02% S, 0.02-0.10% Al, ≤0.005% N, and the balance Fe with inevitable impurities, wherein the average yield strength in the three-directions of the rolling direction, the 45°-oblique direction of the rolling direction and the orthogonal direction of the rolling direction is ≤230 MPa, the average extension thereof is ≥40%, r values in the rolling direction and the orthogonal direction of the rolling direction are 0.7-1.4, and an anisotropy in the surface of the r value (Δr) is -0.2≤Δr≤0.2, and in all of the above three direction, the yield extension after holding at 170°C for 60 min is 0%.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 待解决的问题：为了提供一种在低碳钢中具有可加工性和形状定影性两者的成形性，形状固定性和表面外观性优异的冷轧钢板， 可以确保大尺寸部件所需的形状，并且具有高的平坦度，而不产生任何外观缺陷，并提供其制造方法。 解决方案：该冷轧钢板的特征在于，该组合物的质量为0.030-0.060％C，≤0.05％Si，0.1-0.3％Mn，≤0.05％P，≤0.02％ S，0.02-0.10％Al，≤0.005％N，余量为Fe与不可避免的杂质，其中轧制方向三个方向的平均屈服强度，轧制方向的45°方向和正交方向 的轧制方向为≤230MPa，平均延伸率为≥40％，轧制方向的r值和轧制方向的r值为0.7〜1.4，r值（Δr）表面的各向异性 为-0.2≤Δr≤0.2，在上述三个方向的全部中，在170℃保持60分钟后的收率扩展为0％。 版权所有（C）2011，JPO＆INPIT