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11. 发明专利

JP2005206878A Roll for plating bath 有权
标题翻译：滚筒洗浴
公开(公告)号：JP2005206878A
公开(公告)日：2005-08-04
申请号：JP2004014692
申请日：2004-01-22
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： YUSE FUMIO , IDO HIDEKAZU
IPC分类号： C23C2/00
摘要： PROBLEM TO BE SOLVED: To provide a roll for a plating bath having grooves for exhausting dross to the outer circumferential face thereof, wherein the surface defects in the surface of a steel strip can be prevented by improving the shape of the grooves.
SOLUTION: Regarding the roll for a plating bath having grooves 3 for exhausting dross to the outer circumferential face 2 thereof, the cross-sectional shape of the groove 3 is a V shape or a U shape symmetrical on the right and left in the width direction, and the distance A from the intersection between the side connecting the space between the groove opening edges E in which the confronted groove wall faces 3b1 and 3b2 are crossed and a perpendicular rising from the deepest point 3a of the groove to either groove opening edge E and the distance B from the intersection to the other groove opening edge E satisfy B≥1.1A.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供具有用于向外周面排出浮渣的槽的电镀槽辊，其中可以通过改善槽的形状来防止钢带表面的表面缺陷。解决方案：关于具有用于排出浮渣到其外周面2的槽3的电镀槽的辊，槽3的横截面形状是在左右对称的V形或U形，宽度方向以及与面对面的槽壁面3b1,3b2的沟槽开口边缘E之间的间隔相交的一侧与从槽的最深点3a垂直于两槽的交点相交的距离A 开口边缘E和从交点到另一个槽口边缘E的距离B满足B≥1.1A。版权所有（C）2005，JPO＆NCIPI

12. 发明专利

JP2017078221A 鋼板及び接合体审中-公开
公开(公告)号：JP2017078221A
公开(公告)日：2017-04-27
申请号：JP2016195851
申请日：2016-10-03
申请人：株式会社神戸製鋼所 , Kobe Steel Ltd
发明人： NAKO HIDENORI , OKAZAKI YOSHIOMI , KAWAMORI MAKOTO , YUSE FUMIO
IPC分类号： C22C38/00 , B23K9/23 , C22C38/14 , C22C38/58
CPC分类号： C22C38/001 , C21D8/0226 , C21D9/50 , C21D2211/004 , C22C38/002 , C22C38/005 , 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 , C22C38/40 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/58
摘要：【課題】耐HIC性に優れる鋼板の提供を主な目的とする。【解決手段】本発明の鋼板は、C:0.008質量%以上0.08質量%以下、Si:0.02質量%以上0.50質量%以下、Mn:0.6質量%以上2.0質量%以下、P:0質量%超0.014質量%以下、S:0質量%超0.004質量%以下、Al:0.010質量%以上0.050質量%以下、Nb:0.002質量%以上0.035質量%以下、REM:0.0002質量%以上0.0070質量%以下、Zr:0.0003質量%以上0.01質量%以下、Ca:0.0003質量%以上0.004質量%以下、Ti:0.002質量%以上0.012質量%以下、N:0質量%超0.0065質量%以下、O:0質量%超0.004質量%以下、及び残部である組成を有し、円相当径60nm以上のTiN含有析出物の断面密度が1.0×105個/mm2以上である。【選択図】なし

13. 发明专利

JP2011190474A Ultrahigh-strength steel sheet superior in hydrogen embrittlement resistance 有权
标题翻译：超强度钢板超高压电阻
公开(公告)号：JP2011190474A
公开(公告)日：2011-09-29
申请号：JP2010055136
申请日：2010-03-11
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： YUSE FUMIO , KINUGASA JUNICHIRO , OTOMO RYOSUKE , TSUNEZAWA MICHITAKA
IPC分类号： C22C38/00 , C21D9/46 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide an ultrahigh-strength steel sheet which has remarkably enhanced hydrogen embrittlement resistance in an ultrahigh-strength area in which a tensile strength is 1,180 MPa or more, without impairing the superior ductility which is a characteristic of a TRIP steel sheet.
SOLUTION: The ultrahigh-strength steel sheet includes 0.10-0.25% C, 1.0-3.0% Si, 1.0-3.5% Mn, 0.010% or less P, 0.002% or less or 0.004-0.01% S, 1.5% or less Al, 0.003-2.0% Cr and the balance iron with unavoidable impurities, while satisfying [Mn]×1,000[S] of 2.2 or less or 12.5-25, when [Mn] represents an amount of Mn and [S] represents an amount of S; and also contains 1% or more retained austenite by an area rate with respect to the whole structure. Crystal grains of the retained austenite have an average axial ratio (major axis/minor axis) of 5 or more and an average length of the minor axis of 1 μm or shorter, and satisfy that the shortest distance between the crystal grains of the retained austenite is 1 μm or shorter. The ultrahigh-strength steel sheet also has a tensile strength of 1,180 MPa or more.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：待解决的问题：提供一种在抗拉强度为1180MPa以上的超高强度区域中显着提高耐氢脆性的超高强度钢板，而不损害作为特性的优异的延展性 TRIP钢板。解决方案：超高强度钢板包括0.10-0.25％C，1.0-3.0％Si，1.0-3.5％Mn，0.010％或更少的P，0.002％或更少或0.004-0.01％的S，1.5％或在[Mn]表示Mn量的情况下，满足[Mn]×1,000 [S]为2.2以下或12.5〜25，[S]表示不足够的杂质， S量; 并且相对于整个结构，面积率也包含1％以上的残留奥氏体。残留奥氏体的晶粒的平均轴比（长轴/短轴）为5以上，短轴的平均长度为1μm以下，满足残留奥氏体的晶粒间的最短距离为1μm以下。超高强度钢板的拉伸强度为1180MPa以上。版权所有（C）2011，JPO＆INPIT

14. 发明专利

JP2011127216A Plated steel sheet and method of producing the same 有权
标题翻译：镀钢板及其制造方法
公开(公告)号：JP2011127216A
公开(公告)日：2011-06-30
申请号：JP2010020601
申请日：2010-02-01
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NAKAKUBO SHOHEI , TAKEDA MIKAKO , YUSE FUMIO , MIYAKE YOSHIHIRO , KOBAYASHI FUMIAKI
IPC分类号： C23C2/06 , C21D9/46 , C22C38/00 , C22C38/06 , C22C38/58 , C23C2/28 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To provide a Si and Mn-containing hot-dip galvanized steel sheet and a galvannealed steel sheet both having excellent plating adhesiveness.
SOLUTION: The plated steel sheet having an alloyed or non-alloyed hot-dip galvanizing layer formed on a base steel sheet has an oxide-containing layer containing Si-Mn-O and iron-zinc alloy on the interface between the base steel sheet and the hot-dip galvanized layer. The surface of the oxide-containing layer in the base steel sheet side has mesh like projecting parts and a plurality of recessed parts divided by the projecting parts, wherein the average diameter of the recessed parts calculated by an intercept method is 3.0-10.0 μm and the average width of the projecting parts is 0.2-3.0 μm.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的电镀粘合性的含Si和Mn的热浸镀锌钢板和合金化热浸镀锌钢板。＆lt; P＆gt;解决方案：在基体钢板上形成有合金或非合金化的热浸镀锌层的镀覆钢板，在基体之间的界面上具有包含Si-Mn-O和铁 - 锌合金的含氧化物层钢板和热镀锌层。基底钢板侧的含氧化物层的表面具有网状的突出部和被突出部分割的多个凹部，其中通过截距法计算的凹部的平均直径为3.0〜10.0μm，突出部分的平均宽度为0.2-3.0μm。版权所有（C）2011，JPO＆INPIT

15. 发明专利

JP2010111919A Galvannealed steel sheet 有权
标题翻译： GALVANNEALED钢板
公开(公告)号：JP2010111919A
公开(公告)日：2010-05-20
申请号：JP2008285705
申请日：2008-11-06
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： YUSE FUMIO , TAKEDA MIKAKO , NANBA SHIGENOBU , MIYAKE YOSHIHIRO
IPC分类号： C23C2/06 , C21D9/46 , C22C38/00 , C22C38/58
CPC分类号： C23C2/06 , C21D6/005 , C21D8/0205 , C21D9/46 , C21D2211/001 , C21D2211/005 , C21D2211/008 , C22C38/06 , C22C38/42 , C22C38/50 , C22C38/58 , C23C2/28
摘要： PROBLEM TO BE SOLVED: To provide a galvannealed steel sheet suppressed in formation of plating defects and unevenness of alloying and being excellent in surface appearance, and to provide a method for producing the galvannealed steel sheet.
SOLUTION: The galvannealed steel sheet is prepared by subjecting to hot-dip galvanization a material steel sheet obtained by hot-rolling a steel comprising 0.02-0.25% C, 0.5-3% Si, 1-4% Mn, 0.03-1% Cr, 1.5% or less (exclusive 0%) Al, 0.03% or less (exclusive 0%) P, 0.03% or less (exclusive 0%) S, and 0.003-1% Ti, and in addition, 0.25-5.0% Cu and 0.05-1.0% Ni, the contents of Cu and Ni satisfying the formula (1): [Cu]/[Ni]≥5 with the balance being iron and inevitable impurities and then alloying a plating layer thereon. In formula (1), [ ] means the content (mass%) of each element.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供抑制形成电镀缺陷和合金化不均匀性并且表面外观优异的合金化热浸镀锌钢板，并提供合金化热浸镀锌钢板的制造方法。解决方案：合金化热浸镀锌钢板是通过热轧镀锌制备的钢板，其通过热轧含有0.02-0.25％C，0.5-3％Si，1-4％Mn，0.03％ 1％Cr，1.5％以下（不含0％）Al，0.03％以下（不含0％）P，0.03％以下（排除0％）S和0.003〜1％Ti，另外， 5.0％Cu和0.05-1.0％Ni，Cu和Ni的含量满足式（1）：[Cu] / [Ni]≥5，余量为铁和不可避免的杂质，然后在其上合金化镀层。式（1）中，[]表示各元素的含量（质量％）。版权所有（C）2010，JPO＆INPIT

16. 发明专利

JP2009256773A High-strength cold-rolled steel sheet and high-strength hot-dip galvannealed steel sheet superior in ductility and hole-expandability 有权
标题翻译：高强度冷轧钢板和高强度热镀锌钢板高强度和孔膨胀性
公开(公告)号：JP2009256773A
公开(公告)日：2009-11-05
申请号：JP2008277934
申请日：2008-10-29
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KINUGASA JUNICHIRO , YUSE FUMIO , IKEDA MUNEAKI , MUKAI YOICHI , KASUYA KOJI
IPC分类号： C22C38/00 , B21B3/00 , C21D9/46 , C22C38/06 , C22C38/16 , C23C2/06
摘要： PROBLEM TO BE SOLVED: To provide a high-strength cold-rolled steel sheet and high-strength hot-dip galvannealed steel sheet having both of superior ductility and superior hole-expandability. SOLUTION: The high-strength cold-rolled steel sheet comprises, by mass%, 0.10 to 0.30% C, 0.2% or less Si, 1.0 to 5.0% Mn, 0.1% or less P, 0.01% or less S, 0.2 to 3.0% Al, and the balance Fe with unavoidable impurities; and has a structure in which the principal phase includes bainitic ferrite, martensite and retained austenite, the average axis ratio of retained austenite crystal grains is 5 or more, and the average length of the minor axis is 1 μm or less. Furthermore, the retained austenite exists at a triple point P of grain boundaries, which is a site where three boundaries of former austenite grains meet together in the cross section of the structure. It is preferable that the retained austenite occupies 1 to 20% in the whole structure by an area rate and that the rate of the retained austenite which exists at the triple point of the grain boundaries is 40% or more with respect to the total amount of the retained austenite. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的延展性和优异的扩孔性的高强度冷轧钢板和高强度热浸镀锌合金化热镀锌钢板。解决方案：高强度冷轧钢板以质量％计含有C：0.10〜0.30％，Si：0.2％以下，Mn：1.0〜5.0％，P：0.1％以下，S：0.01％以下， 0.2〜3.0％Al，余量为不可避免杂质的Fe; 并且具有主相包括贝氏体铁素体，马氏体和残留奥氏体的结构，残留奥氏体晶粒的平均轴比为5以上，短轴的平均长度为1μm以下。此外，残留奥氏体存在于晶界的三重点P，这是在结构的横截面中前奥氏体晶粒的三个边界相遇在一起的部位。优选残留奥氏体在整个结构中以面积率占1〜20％，并且存在于晶界的三重点处的残留奥氏体的比例相对于晶粒的总量为40％以上残余奥氏体。版权所有（C）2010，JPO＆INPIT

17. 发明专利

JP2008203218A Method for evaluating delayed fracture resistance of high-strength molten zinc plated steel plate 审中-公开
$Method for evaluating delayed fracture resistance of high-strength molten zinc plated steel plate$
标题翻译：评估高强度镀锌钢板延展耐断裂性的方法
公开(公告)号：JP2008203218A
公开(公告)日：2008-09-04
申请号：JP2007042855
申请日：2007-02-22
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KINUGASA JUNICHIRO , YUSE FUMIO , MUKAI YOICHI , KASUYA KOJI , IKEDA MUNEAKI
IPC分类号： G01N3/34 , G01N17/00
摘要： PROBLEM TO BE SOLVED: To provide a method for quickly and easily evaluating the controversial delayed fracture resistance of a high-strength molten zinc plated steel plate. SOLUTION: The method is provided for evaluating the delayed fracture resistance of the high-strength molten zinc plated steel plate having a tensile strength of 980 MPa or higher. The method includes a hydrogen introducing step (S1) of immersing a test piece 1a of the plated steel plate made of a raw material steel plate in electrolytic solution 2, and introducing hydrogen generated by the electrolysis of the electrolytic solution 2 into a test piece 1b, a plated layer forming step (S2) of forming a plated layer mainly containing zinc at a thickness of 5-100 μm on a test piece 1c into which the hydrogen is introduced, a hydrogen diffusing treatment step (S3) of giving hydrogen diffusing treatment to a test piece 1d on which the plated layer is formed, at a hydrogen diffusing treatment temperature of 450-600°C and for a hydrogen diffusing treatment time of 5-600 seconds, and a delayed fracture resistance testing step (S4) for performing delayed fracture resistance test on a test piece 1e to which the hydrogen diffusing treatment is given. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种快速容易地评价高强度镀锌钢板的有争议的延迟断裂抗力的方法。解决方案：该方法用于评价抗拉强度为980MPa以上的高强度镀锌钢板的延迟断裂性。该方法包括：将由原料钢板制成的镀覆钢板的试验片1a浸渍在电解液2中的氢引入工序（S1），将通过电解液2产生的氢引入试验片1b ，在导入氢的试片1c上形成主要含有5〜100μm厚度的锌的镀层的镀层形成工序（S2），氢扩散处理工序（S3）在450-600℃的氢扩散处理温度和5-600秒的氢扩散处理时间内，在其上形成有镀层的试验片1d和延迟断裂电阻测试步骤（S4）在给出氢扩散处理的试验片1e上进行延迟断裂抗性试验。版权所有（C）2008，JPO＆INPIT

18. 发明专利

JP2008144233A High-strength steel sheet for baking/hardening, and method for producing the same 有权
标题翻译：用于烘烤/硬化的高强度钢板及其制造方法
公开(公告)号：JP2008144233A
公开(公告)日：2008-06-26
申请号：JP2006333795
申请日：2006-12-11
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KASUYA KOJI , MUKAI YOICHI , IKEDA MUNEAKI , KINUGASA JUNICHIRO , YUSE FUMIO
IPC分类号： C22C38/00 , C21D9/46 , C22C38/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To obtain a high-strength steel sheet having increased baking hardenability while having excellent workability.
SOLUTION: A high-strength steel sheet for baking/hardening in which the structure of steel satisfies, by area ratio, ferrite of ≤5% (inclusive of 0%), bainite and martensite of 75 to 100% in total, and pearlite and/or retained austenite of ≤20% in total (inclusive of 0%), and whose dislocation density is ≥3.0×10
15 /m
2 is produced.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：获得具有优异的可加工性的具有提高的烘烤淬透性的高强度钢板。解决方案：一种用于烘烤/硬化的高强度钢板，其中钢的结构按面积比满足铁素体的≤5％（包括0％），贝氏体和马氏体总计为75-100％和总共≤20％的珠光体和/或残留奥氏体（含0％），并且其位错密度≥3.0×10 15 / m 2 。版权所有（C）2008，JPO＆INPIT

19. 发明专利

JP2008127581A Ultrahigh-strength thin steel sheet 有权
标题翻译：超强度薄钢板
公开(公告)号：JP2008127581A
公开(公告)日：2008-06-05
申请号：JP2006310458
申请日：2006-11-16
申请人： Kobe Steel Ltd , Shinshu Tlo:Kk , 株式会社信州Tlo , 株式会社神戸製鋼所
发明人： KINUGASA JUNICHIRO , YUSE FUMIO , MUKAI YOICHI , KASUYA KOJI , IKEDA MUNEAKI , SUGIMOTO KOICHI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide an ultrahigh-strength TRIP-type thin steel sheet which has drastically improved workability and hydrogen embrittlement resistance and has a strength of 980 MPa or higher, without producing coarse carbides in the vicinity of a grain boundary even when containing Cr.
SOLUTION: The ultrahigh-strength thin steel sheet comprises, by mass%, more than 0.25 to 0.60% C, 1.0 to 3.0% Si, 1.0 to 3.5% Mn, 0.15% or less P, 0.02% or less S, 1.5% or less Al, 0.003 to 2.0% Cr, and the balance iron with unavoidable impurities; and has a metallographic structure after the sheet has been stretch-worked at a working rate of 3%, in which retained austenite occupies 1% or more of the whole structure by an area rate, crystal grains of the retained austenite have an average axial ratio (major axis/minor axis) of 5 or more, the crystal grains of the retained austenite have an average minor axis length of 1 μm or shorter, and the crystal grains of the retained austenite have the shortest distance between themselves of 1 μm or shorter.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决问题：为了提供一种超高强度TRIP型薄钢板，其具有显着提高的加工性和耐氢脆性，并且具有980MPa或更高的强度，而不在晶界附近产生粗大的碳化物即使含有Cr。解决方案：超高强度薄钢板以质量％计含有大于0.25至0.60％的C，1.0至3.0％的Si，1.0至3.5％的Mn，0.15％或更少的P，0.02％或更少的S， 1.5％以下的Al，0.003〜2.0％的Cr，余量的铁是不可避免的杂质; 并且在片材以3％的加工速度进行拉伸加工，其中残留奥氏体占整个结构的面积率为1％以上的金相结构，残余奥氏体的晶粒的平均轴比（长轴/短轴）为5以上时，残留奥氏体的晶粒的平均短轴长度为1μm以下，残留奥氏体的晶粒之间的距离最短为1μm以下。版权所有（C）2008，JPO＆INPIT

20. 发明专利

JP2006207018A Ultrahigh-strength steel sheet superior in hydrogen-embrittlement resistance 有权
标题翻译：超强度钢板超级耐腐蚀性
公开(公告)号：JP2006207018A
公开(公告)日：2006-08-10
申请号：JP2005147240
申请日：2005-05-19
申请人： Kobe Steel Ltd , Shinshu Tlo:Kk , 株式会社信州Tlo , 株式会社神戸製鋼所
发明人： YUSE FUMIO , IKEDA CHIKAYUKI , MUKAI YOICHI , AKAMIZU HIROSHI , KINUGASA JUNICHIRO , SAITO KENJI , SUGIMOTO KOICHI , HOJO TOMOHIKO
IPC分类号： C22C38/00 , C22C38/06 , C22C38/16
摘要： PROBLEM TO BE SOLVED: To provide an ultrahigh-strength steel sheet superior in hydrogen-embrittlement resistance. SOLUTION: The ultrahigh-strength steel sheet superior in hydrogen-embrittlement resistance comprises, by mass, 0.10-0.25% C, 1.0-3.0% Si, 1.0-3.5% Mn, 0.15% or less P, 0.02% or less S, 1.5% or less (excluding 0%) Al, and the balance iron with unavoidable impurities; has a metallurgical structure in which retained austenite occupies 1% or more, and in which crystal grains of the retained austenite have an average axial ratio (major axis/minor axis) of 5 or higher, an average minor axis length of 1 μm or less, and spaces of 1 μm or less at the nearest parts between the neighboring crystal grains; and has further a tensile strength of 1,180 MPa or higher. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供耐氢脆性优异的超高强度钢板。解决方案：耐氢脆性优异的超高强度钢板以质量计包含0.10-0.25％C，1.0-3.0％Si，1.0-3.5％Mn，0.15％以下P，0.02％以下 S，1.5％以下（不含0％）Al，余量为铁与不可避免的杂质; 具有残留奥氏体占1％以上的冶金结构，残留奥氏体的晶粒的平均轴比（长轴/短轴）为5以上，平均短轴长度为1μm以下，相邻晶粒之间的最近部分为1μm以下的间隔; 并具有1180MPa以上的拉伸强度。版权所有（C）2006，JPO＆NCIPI

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