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1. 发明专利

JP2005290440A High strength cold rolled steel sheet having excellent adhesion of coating film and workability 有权
标题翻译：高强度冷轧钢板，具有优异的涂膜和粘合性
公开(公告)号：JP2005290440A
公开(公告)日：2005-10-20
申请号：JP2004104924
申请日：2004-03-31
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KAMITSUMA SHINJI , OMIYA YOSHINOBU , KAMURA MANABU , HASHIMOTO IKUO , NOMURA MASAHIRO
IPC分类号： C22C38/00 , C22C38/04 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To provide a high strength cold rolled steel sheet having excellent adhesion of a coating film and workability, and a tensile strength of ≥390 MPa.
SOLUTION: The cold rolled steel sheet is composed of a steel sheet with a composite structure satisfying prescribed components and essentially consisting of ferrite and bainite and/or carbide, and, (I) in the surface of the steel sheet, Mn-Si multiple oxides in which the atomic ratio between Mn to Si (Mn/Si) is ≥0.5 and having a major axis of 0.01 to 5 μm are present by ≥10 pieces/100 μm
2 , and the coating ratio for the surface of the steel sheet by oxides consisting essentially of Si is ≤10%, and/or (II), when the cross-sections in the vicinity of the surface of the steel sheet is observed by 2,000 magnifications using an SEM (Scanning Electron Microscope), cracks with a width of ≤3 μm and a depth of ≥5 μm are not present in optional 10 fields.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供具有优异的涂膜密合性和加工性，抗拉强度≥390MPa的高强度冷轧钢板。解决方案：冷轧钢板由具有满足规定成分并且基本上由铁素体和贝氏体和/或碳化物组成的复合结构的钢板组成，（I）在钢板表面，Mn- 其中Mn与Si（Mn / Si）之间的原子比≥0.5且长轴为0.01至5μm的Si多重氧化物存在≥10个/100μm 2 ，并且当使用SEM观察钢板表面附近的横截面为2,000倍时，钢板表面的涂层比例基本上由Si组成的氧化物为≤10％，和/或（II）（扫描电子显微镜），可选的10个场中不存在宽度≤3μm，深度≥5μm的裂纹。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005281785A High strength cold rolled steel sheet having excellent adhesion of coating film and workability 有权
标题翻译：高强度冷轧钢板，具有优异的涂膜和粘合性
公开(公告)号：JP2005281785A
公开(公告)日：2005-10-13
申请号：JP2004098431
申请日：2004-03-30
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KAMURA MANABU , OMIYA YOSHINOBU , KAMITSUMA SHINJI , HASHIMOTO IKUO , NOMURA MASAHIRO
IPC分类号： C22C38/00 , C22C38/14
摘要： PROBLEM TO BE SOLVED: To provide a high strength cold rolled steel sheet having excellent adhesion of a coating film and workability, and having a tensile strength of ≥340 MPa.
SOLUTION: The cold rolled steel sheet satisfies prescribed components and has a ferrite single phase structure. (I) In the surface of the steel sheet, Mn-Si double oxide with a major axis of 0.01 to 5μm in which the atomic ratio between Mn and Si (Mn/Si) is ≥0.5 are present by ≥10 pieces/100 μm
2 , and further, the coating ratio of the oxide essentially consisting of Si to the surface of the steel sheet is ≤10%, and/or (II), at the time when the cross-sections near the surface of the steel sheet are observed by 2,000 magnifications using an SEM (Scanning Electron Microscope), in optional 10 fields, cracks with a width of ≤ 3 μm and a depth of ≥5 μm are not present.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供具有优异的涂膜密合性和加工性，并且拉伸强度≥340MPa的高强度冷轧钢板。
解决方案：冷轧钢板满足规定的部件，并具有铁素体单相结构。（I）在钢板的表面，Mn和Si（Mn / Si）的原子比≥0.5的长轴为0.01〜5μm的Mn-Si双氧化物存在≥10个/100μm 另外，由Si组成的氧化物与钢板的表面的比例为≤10％和/或（II）时，横截面为使用SEM（扫描电子显微镜）在任意的10个场中观察钢板的表面为2000倍，宽度≤3μm，深度≥5μm的裂纹不存在。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2011158438A Method for inspecting reinforcement bar corrosion in concrete pole 审中-公开
标题翻译：检查钢筋混凝土中钢筋腐蚀的方法
公开(公告)号：JP2011158438A
公开(公告)日：2011-08-18
申请号：JP2010022648
申请日：2010-02-04
申请人： Kobe Steel Ltd , Kobelco Kaken:Kk , 株式会社コベルコ科研 , 株式会社神戸製鋼所
发明人： TAO HIROAKI , TAKAMATSU HIROYUKI , HASHIMOTO IKUO , FUKUMOTO HIROHIKO
IPC分类号： G01N27/72
摘要： PROBLEM TO BE SOLVED: To provide a method for inspecting reinforcement bar corrosion in a concrete pole, precisely determining the presence of reinforcement bar corrosion in a concrete pole.
SOLUTION: The method includes the steps of: measuring an inductance and a resistance of an inspection coil by making an alternating current flow through the inspection coil surrounding the outer of a concrete pole with a reinforced bar; calculating a resistance calculated value from the measured inductance value and from the database representing the relation between the inductance and the resistance of the inspection coil when varying a parameter on a reinforced bar previously prepared; and discriminating between presence and absence of the reinforced bar corrosion in the concrete pole by comparing the resistance calculated value with the measured resistance value.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种在混凝土柱中检查钢筋腐蚀的方法，精确确定混凝土柱中钢筋腐蚀的存在。解决方案：该方法包括以下步骤：通过使具有加强棒的混凝土柱外围的检查线圈交替流动来测量检查线圈的电感和电阻; 根据所测量的电感值计算电阻计算值，并从数据库中计算出当改变预先准备的钢筋上的参数时检测线圈的电感和电阻之间的关系; 并通过将电阻计算值与测得的电阻值进行比较，来区分混凝土柱中钢筋腐蚀的存在与否。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2005248281A High strength cold rolled steel sheet having excellent adhesion of coating film 有权
标题翻译：高强度冷轧钢板，具有优异的涂膜粘合力
公开(公告)号：JP2005248281A
公开(公告)日：2005-09-15
申请号：JP2004062573
申请日：2004-03-05
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： HASHIMOTO IKUO , NOMURA MASAHIRO , KAMITSUMA SHINJI , KAMURA MANABU , OMIYA YOSHINOBU
IPC分类号： C22C38/00 , C22C38/04
摘要： PROBLEM TO BE SOLVED: To provide a high strength cold rolled steel sheet having excellent adhesion of a coating film, and having a tensile strength of ≥550 MPa.
SOLUTION: The high strength cold rolled steel sheet is a ferrite-martensite based DP (Dual Phase) steel sheet satisfying prescribed components and having a tensile strength of ≥550 MPa, where, in the cross-section in a direction orthogonal to the surface of the steel sheet, at the time when the region in which depth from the surface of the steel sheet is 2 μm and the length in the surface of the steel sheet is 10 μm is observed at the magnification of 5,000 times using an electron microscope, Mn-Si multiple oxides with a major axis of 0.01 to 5 μm in which the atomic ratio between Mn and Si (Mn-Si) is ≥0.5 are present by ≥10 pieces, and also, the occupancy ratio of oxides consisting essentially of Si and having a cross-sectional thickness of ≥0.01 μm in the length of 10 μm in the surface of the steel sheet is ≤10% (inclusive of 0%) on the average of 5 places optionally selected in the surface of the steel sheet.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有优异的涂膜密合性，拉伸强度≥550MPa的高强度冷轧钢板。解决方案：高强度冷轧钢板是一种铁素体 - 马氏体系的DP（双相）钢板，其满足规定的成分并具有≥550MPa的拉伸强度，其中在与在使用电子元件的5000倍的倍数观察钢板表面的钢板表面深度为2μm的区域和钢板表面的长度为10μm时的表面显微镜，长轴为0.01〜5μm的Mn-Si复合氧化物，其中Mn和Si（Mn-Si）的原子比≥0.5存在≥10个，并且氧化物的占有率基本上的Si，在钢板表面的长度为10μm的截面厚度≥0.01μm的钢板表面的平均5个位置的平均值为10％（含0％）片。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2005187863A High strength cold rolled steel sheet having excellent coating film adhesion 有权
标题翻译：高强度冷轧钢板，具有优异的涂膜胶粘度
公开(公告)号：JP2005187863A
公开(公告)日：2005-07-14
申请号：JP2003429151
申请日：2003-12-25
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NOMURA MASAHIRO , HASHIMOTO IKUO , OMIYA YOSHINOBU , KAMITSUMA SHINJI , KAMURA MANABU
IPC分类号： C22C38/00 , C21D8/02 , C21D9/48 , C22C38/02 , C22C38/04 , C23C2/02 , C23C2/06 , C23C30/00
CPC分类号： C22C38/02 , C21D8/0226 , C21D8/0236 , C21D8/0278 , C21D2211/005 , C21D2211/008 , C22C38/04 , C23C2/02 , C23C30/00
摘要： PROBLEM TO BE SOLVED: To provide a high-strength cold rolled steel sheet having excellent coating film adhesion and tensile strength of ≥550 MPa.
SOLUTION: The cold rolled steel sheet is a DP (Dual Phase) steel sheet satisfying regulated components, wherein (I) Si-Mn double oxides of ≤5 μm in the diameter of equivalent circle exist at ≥10 pieces/100 μm
2 on the surface of the steel sheet and the surface coverage of the oxides mainly composed of Si is ≥10% and/or (II) the cracks of a width ≤3 μm and a depth ≥5 μm do not exist within arbitrary 10 visual fields when the section near the surface of the steel sheet is observed at 2,000 times by using an SEM (scanning electron microscope).
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有优异的涂膜粘附性和≥550MPa的拉伸强度的高强度冷轧钢板。解决方案：冷轧钢板是满足调节组分的DP（双相）钢板，其中（I）当量圆直径≤5μm的Si-Mn双氧化物存在≥10个/100μm 钢板表面的 2 ，主要由Si构成的氧化物的表面覆盖率为≥10％，（II）宽度≤3μm，深度≥5μm的裂纹当使用SEM（扫描型电子显微镜）在2000次观察钢板表面附近的部分时，在任意的10个视野内不存在。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2004244698A High-strength cold-rolled steel sheet 有权
标题翻译：高强度冷轧钢板
公开(公告)号：JP2004244698A
公开(公告)日：2004-09-02
申请号：JP2003037611
申请日：2003-02-17
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NOMURA MASAHIRO , HASHIMOTO IKUO , KAMURA MANABU , OMIYA YOSHINOBU
IPC分类号： C22C38/00 , C22C38/02 , C22C38/04
摘要： PROBLEM TO BE SOLVED: To provide a high-strength cold-rolled steel sheet containing high Si, which shows an adequate appearance having no fine recess formed on the surface of a steel sheet, and has adequate chemical conversion treatability and superior corrosion resistance.
SOLUTION: The high-strength cold-rolled steel sheet includes 0.2 to 3 % Si (by mass%, hereafter the same); and when the cross section of the steel sheet is observed at a magnification of 5,000 times through a field emission type scanning electron microscope, has linear compounds containing Si and O in a region 10 μm or less deep from the surface of the steel sheet, while the linear compounds observed in the region of the depth of 1 to 10 μm from the surface of the steel sheet have a line width of 300 nm or narrower.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供一种含有高Si的高强度冷轧钢板，其表现出在钢板表面上形成的没有细小凹陷的适当外观，并且具有足够的化学转化处理性和优异的腐蚀性抵抗性。解决方案：高强度冷轧钢板包括0.2〜3％的Si（质量％，以下相同）; 并且当通过场发射型扫描电子显微镜以5000倍的倍率观察钢板的横截面时，在距离钢板表面10μm以下的区域中含有含有Si和O的线性化合物，而在钢板表面的深度为1〜10μm的区域中观察到的线状化合物的线宽为300nm以下。版权所有（C）2004，JPO＆NCIPI

7. 发明专利

JP2011102437A High-strength cold-rolled steel sheet having excellent coating film adhesion and workability, and method for producing the same 有权
标题翻译：具有优异涂层膜的高强度冷轧钢板粘合力和可加工性及其制造方法
公开(公告)号：JP2011102437A
公开(公告)日：2011-05-26
申请号：JP2010290850
申请日：2010-12-27
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： OMIYA YOSHINOBU , KAMITSUMA SHINJI , KAMURA MANABU , HASHIMOTO IKUO , NOMURA MASAHIRO
IPC分类号： C22C38/00 , B21B3/00 , C21D1/26 , C21D1/74 , C21D9/46 , C22C38/06 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To provide a high-strength cold-rolled steel sheet which has excellent coating film adhesion and workability and satisfies the tensile strength of ≥550 MPa.
SOLUTION: The high-strength cold-rolled steel sheet having excellent coating film adhesion and workability is composed of a steel sheet with a composite structure satisfying a prescribed componential composition, and comprising prescribed amounts of ferrite, bainite and retained austenite, and, when the cross-section in the vicinity of the surface of the steel sheet is observed at the magnification power of 2,000 using SEM (scanning electron microscope), cracks with a width of ≤3 μm and a depth of ≥5 μm are not present in optional 10 fields, its tensile strength is ≥550 MPa, and also, the tensile strength (TS: unit MPa) and elongation (El: unit %) satisfy inequality (1) TS×El≥19,000.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有优异的涂膜粘附性和加工性的高强度冷轧钢板，并且满足≥550MPa的拉伸强度。解决方案：具有优异的涂膜粘附性和可加工性的高强度冷轧钢板由具有规定组成组成的复合结构的钢板组成，并且包含规定量的铁素体，贝氏体和残余奥氏体，以及当使用SEM（扫描型电子显微镜）以放大倍数2000观察钢板表面附近的截面时，不存在宽度≤3μm，深度≥5μm的裂纹在可选的10个场中，其拉伸强度≥550MPa，拉伸强度（TS：单位MPa）和伸长率（El：单位％）满足不等式（1）TS×El≥19,000。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2006144106A High-strength steel sheet excellent in adhesiveness of coating film 审中-公开
标题翻译：高强度钢板涂层胶粘剂优异
公开(公告)号：JP2006144106A
公开(公告)日：2006-06-08
申请号：JP2004339404
申请日：2004-11-24
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NOMURA MASAHIRO , HASHIMOTO IKUO , OMIYA YOSHINOBU , KAMITSUMA SHINJI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/04
摘要： PROBLEM TO BE SOLVED: To provide a high-strength steel sheet which is excellent in adhesiveness of a coating film and exerts an excellent corrosion resistance even in a corrosive environment. SOLUTION: In the high-strength steel sheet excellent in adhesiveness of the coating film, when a cross section, which is orthogonal to the surface of the steel sheet and has a shear drop of ≤2 μm, is observed by a field emission type scanning electron microscope with an accelerating voltage of 20 kV and a magnification of ×5,000 to confirm a depositing state of Si- and/or Mn-containing oxide generated in a network- or hair root-like manner in the depth direction from the surface of the steel sheet, the average distance between the origins of the Si- and/or Mn-containing oxide generated in the network- or hair root-like manner at the surface of the steel sheet is ≥5 μm, and the total length of the oxide within a visual field which includes the surface of the steel sheet and has a depth of 12 μm and a width of 20 μm is ≤10 μm. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供即使在腐蚀性环境中也能赋予涂膜粘合性优异且耐腐蚀性优异的高强度钢板。解决方案：在涂膜粘附性优异的高强度钢板中，当通过场观察与钢板表面正交并且具有≤2μm的剪切降的横截面时发射型扫描电子显微镜，其加速电压为20kV，放大倍数为5000，以确认从网状或发根状态产生的含有Si和/或Mn的氧化物在深度方向上的沉积状态，在钢板表面，在钢板表面以网状或毛根状生成的Si-和/或含Mn氧化物的起源之间的平均距离为≥5μm，总长度的包含钢板表面的视野内的氧化物的深度为12μm，宽度为20μm的氧化物为≤10μm。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2004323969A High strength cold rolled steel sheet excellent in chemical processing 有权
标题翻译：高强度冷轧钢板优良的化学加工
公开(公告)号：JP2004323969A
公开(公告)日：2004-11-18
申请号：JP2004034862
申请日：2004-02-12
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NOMURA MASAHIRO , HASHIMOTO IKUO , OMIYA YOSHINOBU , KAMURA MANABU , KAMITSUMA SHINJI
IPC分类号： C23C22/50 , C21D9/46 , C22C38/00 , C22C38/04 , C23G1/02
摘要： PROBLEM TO BE SOLVED: To provide a high strength cold rolled steel sheet which is excellent in chemical processing even in the case Si effective for increasing strength is largely added while maintaining its formability, and to provide its production method.
SOLUTION: The high strength cold rolled steel sheet contains, by mass, >0.1% C and ≥0.4% Si, wherein the Si content (mass%)/the Mn content (mass%) is ≥0.4, and has a tensile strength of ≥700 MPa. The surface covering ratio of Si-based oxide consisting mainly of Si in the steel sheet surface is ≤20 area%, and also, in the covering region of the Si-based oxide, the diameter of the maximum circle inscribed in the region is ≤5 μm.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供即使在有效提高强度的情况下，在保持其成形性的情况下大量添加Si也具有优异的化学加工性的高强度冷轧钢板，并提供其制造方法。解决方案：高强度冷轧钢板以Si含量（质量％）/ Mn含量（质量％）≥0.4为质量计含有> 0.1％C和≥0.4％的Si，并且具有抗拉强度≥700MPa。钢板表面主要由Si构成的Si系氧化物的表面覆盖率为≤20面积％，在Si系氧化物的覆盖区域中，该区域内的最大圆的直径≤ 5μm。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2007277585A High-strength hot-rolled steel sheet excellent in chemical convertibility 审中-公开
标题翻译：高强度热轧钢板优良的化学可转换性
公开(公告)号：JP2007277585A
公开(公告)日：2007-10-25
申请号：JP2006091129
申请日：2006-03-29
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KAMITSUMA SHINJI , NOMURA MASAHIRO , HASHIMOTO IKUO
IPC分类号： C23C22/78 , C21D9/46 , C22C38/00 , C22C38/06 , C22C38/58 , C23G1/08
摘要： PROBLEM TO BE SOLVED: To provide a high-strength hot-rolled steel sheet which stably exhibits excellent chemical convertibility, even when it contains Mo which is added for enhancing the strength thereof.
SOLUTION: The high-strength hot-rolled steel sheet having improved chemical convertibility satisfies the surface characteristics that the maximum height (Ry) of profile irregularities in the surface is not less than 10 μm and the mean spacing (Sm) of the profile irregularities is not more than 30 μm. Further, this high-strength hot-rolled steel sheet satisfies either, preferably both, of the following characteristics that the profile bearing length ratio (tp40) of the surface is not more than 20%, and the difference between the profile bearing length ratio (tp60) and the profile bearing length ratio (tp40) of the surfaces is not less than 60%.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：待解决的问题：为了提供一种稳定地表现出优异的化学可转换性的高强度热轧钢板，即使其含有添加以提高其强度的Mo也是如此。解决方案：具有改善的化学转化率的高强度热轧钢板满足表面的轮廓不规则性的最大高度（Ry）不小于10μm的表面特性，并且平均间隔（Sm）轮廓不规则不大于30μm。此外，该高强度热轧钢板也满足以下特性，即，表面的型材轴承长度比（tp40）不大于20％，轮廓轴承长度比（ tp60）和表面的型材轴承长度比（tp40）不小于60％。版权所有（C）2008，JPO＆INPIT

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