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21. 发明专利

JP2004091879A Zinc based metal-coated steel member having excellent corrosion resistance in edge face and damaged part 审中-公开
公开(公告)号：JP2004091879A
公开(公告)日：2004-03-25
申请号：JP2002256417
申请日：2002-09-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： YAMANAKA SHINTARO , YAMAMOTO MASAHIRO , MIYASAKA AKIHIRO
IPC分类号： C23C2/06 , C22C18/04 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide a zinc based metal-coated steel member which has excellent corrosion resistance in edge faces and damaged parts.
SOLUTION: The surface of a steel member having a composition comprising, by mass, ≤35% Cr and ≤10% Al, also satisfying 1≤[Cr%]/3+[Al%]/6, and the balance Fe with inevitable impurities is provided with a zinc based metal coating comprising ≥40% Zn. The corrosion resistance in the exposed parts such as edge faces and damaged faces in the steel member can remarkably be improved, and its use in every application including civil engineering building materials, automobiles and vessels is made possible.
COPYRIGHT: (C)2004,JPO

22. 发明专利

JP2004068028A Steel product superior in corrosion-preventive property 有权
公开(公告)号：JP2004068028A
公开(公告)日：2004-03-04
申请号：JP2002224357
申请日：2002-08-01
申请人： Nippon Steel Corp , Ntt Afty Corp , エヌ・ティ・ティ・アフティ株式会社 , 新日本製鐵株式会社
发明人： HARADA YOSHIYUKI , KAJIKI TOSHIYUKI , MIYASAKA AKIHIRO , TAKAZAWA HISAYOSHI
IPC分类号： C23C22/07 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide a steel product superior in corrosion-preventive properties, more particularly, a steel product superior in corrosion-preventive properties and scratch corrosion resistance.
SOLUTION: The steel product superior in corrosion-preventive properties is made of a steel material having a paint film formed thereon comprising a thermoplastic polyethylene terephthalate-based resin containing a phosphite, wherein the ratio of the phosphite with respect to the thermoplastic polyethylene terephthalate-based resin expressed by (mass%)=(mass of phosphite) / (mass of thermoplastic polyethylene terephthalate-based powder resin)×100 is 5-50.
COPYRIGHT: (C)2004,JPO

23. 发明专利

JP2008202115A High-strength steel sheet having excellent ductility, and method for producing the same 有权
标题翻译：具有优异强度的高强度钢板及其制造方法
公开(公告)号：JP2008202115A
公开(公告)日：2008-09-04
申请号：JP2007041210
申请日：2007-02-21
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUJITA NOBUHIRO , TAKAHASHI MANABU , MIYASAKA AKIHIRO , TOMOKIYO HISAMASA , OKAMOTO TSUTOMU
IPC分类号： C22C38/00 , B21B1/26 , B21B3/00 , C21D9/46 , C22C38/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high-strength steel sheet of which both the strength and ductility are improved, and, particularly, the ductility is excellent, and to provide a method for producing the same.
SOLUTION: The high-strength steel sheet having excellent ductility has a metallic structure composed of ferrite as a soft phase, and one or more selected from pearlite, bainite, austenite and martensite as a hard phase(s). According to the structural observation of the sheet cross-section, a part or the whole of the respective soft phase crystal grains and hard phase crystal grains forms the group of the crystal grains with an orientation difference of ≤5 degrees, and, regarding both the crystal grain group of the soft phase and the crystal grain group of the hard phase(s), the aspect ratio of the groups of the crystal grains is ≥5.0. The method for producing the same is characterized in that the finish rolling of hot rolling is performed at a final draft of ≥10%, finishing temperature is controlled to ≤880°C, cooling is performed to the temperature region of 750 to 650°C at the average cooling rate of 1 to 100°C/s, successively, coiling is performed in the temperature range of 750 to 650°C, and the hot rolled steel sheet is pickled, cold-rolled, and then annealed.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：为了提供其强度和延展性均得到改善，特别是延展性优异的高强度钢板，并提供其制造方法。解决方案：具有优异延展性的高强度钢板具有由作为软质相的铁素体构成的金属结构，并且选自珠光体，贝氏体，奥氏体和马氏体中的一种或多种作为硬质相。根据片材横截面的结构观察，各个软相晶粒和硬相晶粒的一部分或全部形成取向差为≤5度的晶粒组，并且关于两者硬质相的晶粒组和硬质相的晶粒组，晶粒组的纵横比≥5.0。其制造方法的特征在于，以最终取稿度≥10％进行热轧精轧，最终温度控制在≤880℃，对750〜650℃的温度范围进行冷却平均冷却速度为1〜100℃/秒，依次在750〜650℃的温度范围进行卷取，热轧钢板进行酸洗，冷轧，退火。版权所有（C）2008，JPO＆INPIT

24. 发明专利

JP2007320501A Vehicle body floor structure 有权
标题翻译：车身体积结构
公开(公告)号：JP2007320501A
公开(公告)日：2007-12-13
申请号：JP2006155160
申请日：2006-06-02
申请人： Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 新日本製鐵株式会社
发明人： AOKI NORIHISA , YOSHIOKA HIDEYUKI , OGAWA MISAO , MIYASAKA AKIHIRO , MIYAZAKI YASUNOBU , SHIMIZU NOBUTAKA
IPC分类号： B62D25/20
摘要： PROBLEM TO BE SOLVED: To obtain a vehicle body floor structure capable of effectively suppressing buckling due to wrinkles of a floor face caused by shearing load applied at the time of frontal collision.
SOLUTION: A rocker part 12 is arranged along a vehicle longitudinal direction in an end part position in the vehicle width direction outer side of a vehicle body floor 10, and a center floor tunnel part 14 is arranged along the vehicle longitudinal direction in an end part position in the vehicle width direction inner side. Support plates 26 comprising thick plates to enhance rigidity and strength are arranged by welding in a first corner part 22 and a second corner part 24 on a diagonal line B to which compressive force Q is applied at the time of frontal collision. Due to this structure, proof stress with respect to shearing force τ applied to both sides of the vehicle body floor 10 at the time of frontal collision is increased and thus, buckling due to bulged wrinkles along a diagonal line A can be effectively suppressed.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：获得能够有效地抑制由于在正面碰撞时施加的剪切载荷引起的由地板面皱纹引起的屈曲的车体地板结构。解决方案：在车体地板10的车辆宽度方向外侧的端部位置沿着车辆前后方向配置有摇摆部12，沿着车辆前方方向配置中心地板通道部14 车宽方向内侧的端部位置。通过焊接在正面碰撞时施加有压缩力Q的对角线B上的第一角部22和第二角部24中布置包括厚板以提高刚度和强度的支撑板26。由于这种结构，相对于在前方碰撞时对车体地板10的两侧施加的剪切力τ的抵抗力增加，因此能够有效地抑制由于沿着对角线A的隆起的褶皱的弯曲。版权所有（C）2008，JPO＆INPIT

25. 发明专利

JP2007262492A Surface treated metallic material having excellent magnetic characteristics and method of manufacturing the same 有权
标题翻译：具有优异磁性特性的表面处理金属材料及其制造方法
公开(公告)号：JP2007262492A
公开(公告)日：2007-10-11
申请号：JP2006089016
申请日：2006-03-28
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SHIMODA NOBUYUKI , NAKAZAWA MASATO , MIYASAKA AKIHIRO
IPC分类号： C25D3/20 , C25D5/50 , C25D15/02
摘要： PROBLEM TO BE SOLVED: To provide a surface treated metallic material having excellent magnetic characteristics which is manufactured by an economical manufacturing method exhibiting high film forming speed without requiring a special high temperature.
SOLUTION: The surface treated metallic material having excellent magnetic characteristics has a silicon metal-containing iron based plated layer on at least one surface of the metallic material and the content of silicon in the plated layer is >3.5% and ≤10%.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有优异磁特性的表面处理金属材料，其通过在不需要特殊高温的情况下显示高成膜速度的经济制造方法制造。解决方案：具有优异磁特性的表面处理金属材料在金属材料的至少一个表面上具有含硅金属的铁基镀层，并且镀层中的硅含量为> 3.5％且≤10％。版权所有（C）2008，JPO＆INPIT

26. 发明专利

JP2007046146A High young's modulus steel plate, hot dip galvanized steel sheet using the same, hot dip galvannealed steel sheet, high young's modulus steel pipe, high young's modulus hot dip galvanized steel pipe, high young's modulus hot dip galvannealed steel pipe, and method for production thereof 有权
标题翻译：高年轻模具钢板，采用相同的热镀锌钢板，热镀锌钢板，高年轻模具钢管，高年轻模具热镀锌钢管，高年轻模具热镀锌钢管，及其生产方法
公开(公告)号：JP2007046146A
公开(公告)日：2007-02-22
申请号：JP2005330429
申请日：2005-11-15
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SUGIURA NATSUKO , YOSHINAGA NAOKI , TAKAHASHI MANABU , SENUMA TAKEHIDE , MIYASAKA AKIHIRO , SUGANO RYOICHI , HANYA KOJI , UNO NOBUYOSHI , HIWATARI SHUNJI
IPC分类号： C22C38/00 , B21B1/22 , B21B1/26 , B21B3/00 , C21D6/00 , C21D9/46 , C22C38/14 , C22C38/58 , C23C2/06 , C23C2/38 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To provide a high young's modulus steel plate, to provide a hot dip galvanized steel sheet using the same, to provide a hot dip galvannealed steel sheet, to provide a high young's modulus steel pipe, to provide a high young's modulus hot dip galvanized steel pipe, to provide a high young's modulus hot dip galvannealed steel pipe, and to provide a method for production thereof.
SOLUTION: An embodiment of a high Young's modulus steel sheet, wherein it has a chemical composition comprising, by mass, C: 0.0005 to 0.30%, Si: 2.5% or less, Mn: 0.1 to 5.0%, P: 0.15% or less, S: 0.015% or less, Al: 0.15% or less, N: 0.01% or less, and further comprises 0.015 to 1.91% by mass in total of one or more of Mo: 0.005 to 1.5%, Nb: 0.005 to 0.20%, B: 0.0001 to 0.01%, and Ti: 48/14×N (mass%) to 0.2%, and wherein {110} and/or {110} in a layer at 1/8 of the thickness of the sheet have a pole density of 10 or more and a Young's modulus in the rolling direction of more than 230 GPa.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种高年龄模量钢板，提供一种使用该钢板的热浸镀锌钢板，以提供一种热浸镀锌钢板，以提供高年模量钢管，以提供一种高年限模量热镀锌钢管，提供高年限模量热浸镀锌钢管，并提供其生产方法。解决方案：高杨氏模量钢板的一种实施方案，其具有以质量计含有C：0.0005〜0.30％，Si：2.5％以下，Mn：0.1〜5.0％，P：0.15的化学成分％以下，S：0.015％以下，Al：0.15％以下，N：0.01％以下，进一步含有0.015〜1.91质量％的Mo：0.005〜1.5％，Nb： 0.005〜0.20％，B：0.0001〜0.01％，Ti：48/14×N（质量％）〜0.2％，其中ä110} 223和/或ä110} <111> 片材的厚度的极点密度为10以上，并且轧制方向的杨氏模量大于230GPa。版权所有（C）2007，JPO＆INPIT

27. 发明专利

JP2005281782A Thin tinned steel sheet for welded can 有权
标题翻译：用于焊接罐的薄钢板
公开(公告)号：JP2005281782A
公开(公告)日：2005-10-13
申请号：JP2004097989
申请日：2004-03-30
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： DATE HIROMITSU , MIYASAKA AKIHIRO
IPC分类号： C23C28/00
CPC分类号： C23C28/322 , C23C28/321 , C23C28/345
摘要： PROBLEM TO BE SOLVED: To provide a thin tinned steel sheet for a welded can which is good in wire seam weldability, is reduced in the variation among production chances and variation by each of individuals and is high in production efficiency of can making.
SOLUTION: The thin tinned steel sheet for the welded can having a tin layer of 300 to 2,000 mg/m
2 on a steel sheet surface and a chemical conversion treatment layer thereon is characterized by that the arithmetic mean roughness Ra of the roughness curve obtained by removing a component of a wavelength shorter than a wavelength 2 μm and a component of a wavelength longer than a wavelength 5 μm from the sectional curve on the surface is ≥0.003 μm in both of the rolling direction and transverse direction of the steel sheet and that the crests of ≥1.5 μm in height from a mean line at the sectional curve measured in the transverse direction of the steel sheet are ≤15 pieces per 10 mm evaluation length.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种焊丝焊接性好的焊接罐用薄钢板，能够减少各个生产机会和变化之间的差异，并且制罐的生产效率高。解决方案：在钢板表面和化学转化处理层上，具有300至2,000mg / m 2 SP / 2的锡层的焊接罐用薄钢板，其特征在于：通过从表面的截面曲线除去波长短于波长2μm的波长的成分和波长比波长5μm的波长成分得到的粗糙度曲线的算术平均粗糙度Ra为≥0.003μm 方向和横向，并且在钢板的横向测量的截面曲线上的平均线高度为≥1.5μm的波峰的评估长度不等于15mm。版权所有（C）2006，JPO＆NCIPI

28. 发明专利

JP2005230912A Arc welding flux cored wire superior in liquid metal embrittlement crack resistance, and arc welding method 审中-公开
标题翻译：液体金属电弧焊接电弧焊丝超级电阻和电弧焊接方法
公开(公告)号：JP2005230912A
公开(公告)日：2005-09-02
申请号：JP2004349812
申请日：2004-12-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KODAMA SHINJI , HAMAYA HIDEKI , MIZUHASHI NOBUO , MIYASAKA AKIHIRO , HARA TAKUYA
IPC分类号： B23K9/173 , B23K9/23 , B23K35/368 , B23K103/16 , C22C18/04 , C23C2/06
摘要： PROBLEM TO BE SOLVED: To provide a welding wire and a welding method which can suppress weld defects such as blowholes caused by zinc-based alloy plating and also can suppress liquid metal embrittlement crack in weld metal and a heat-affected zone of steel.
SOLUTION: This arc welding flux cored wire superior in liquid metal embrittlement crack resistance is constituted by filling flux in a steel jacket and is used for arc-welding of a Zn-based alloy plated steel plate which is treated on the surface with a Zn-based alloy plating containing one or more of Si, Al and Mg and satisfying [Zn]+1.5×[Al]+[Mg]≥30g/m
2 . In the total mass of the wire, it contains in mass % 1.5-5.5% (i-1)TiO
2 , 0.06-0.9% FeO, and 2-6% slag forming agent (total) containing TiO
2 and FeO. In addition, it contains 0.3-1% (i-2)Si and 0.8-3% Mn. In the above expression, [Zn], [Al] and [Mg] are each deposit (g/m
2 ) of Zn, Al and Mg respectively in the Zn-based alloy plating.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够抑制由锌系合金电镀引起的气孔等焊接缺陷的焊丝和焊接方法，还能够抑制焊接金属和热影响区的液体金属脆化裂纹钢。
解决方案：该液体金属脆性抗裂性优良的电弧焊药芯焊丝由钢夹套中的焊剂填充构成，用于在表面处理的Zn系合金镀层钢板的电弧焊接，包含Si，Al和Mg中的一种或多种并且满足[Zn] + 1.5×[Al] + [Mg]≥30g/ m 2 / SP的Zn基合金电镀。在电线的总质量中，其含有以质量％计含有1.5-5.5％（i-1）TiO 2 ，0.06-0.9％FeO和2-6％成渣剂（总计） TiO 2 SBO和FeO。此外，它含有0.3-1％（i-2）Si和0.8-3％Mn。在上述表达式中，在Zn基合金电镀中，分别为Zn，Al，Mg的[Zn]，[Al]和[Mg]各自的沉积物（g / m×SP> 2 ）。版权所有（C）2005，JPO＆NCIPI

29. 发明专利

JP2005144504A Lap laser welding method for galvanized steel sheet and welded joint of lap welded galvanized steel sheet 有权
标题翻译：用于钢化钢板的拉链激光焊接方法和焊接钢焊接钢板的焊接接头
公开(公告)号：JP2005144504A
公开(公告)日：2005-06-09
申请号：JP2003386358
申请日：2003-11-17
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： HIRANO KOJI , SUGIBASHI ATSUSHI , HAMADA NAOYA , MIYASAKA AKIHIRO
IPC分类号： B23K26/00 , B23K26/20 , B23K26/32 , B23K103/04 , B23K103/16
摘要： PROBLEM TO BE SOLVED: To provide a lap laser welding method for galvanized steel sheets having excellent weld bead shape and quality, with which the explosion of a weld metal and the occurrence of a weld defect due to the occurrence of a zinc vapor can be reduced, in lap laser welding of two galvanized steel sheets, and a defect-free lap welded joint of the galvanized steel sheets. SOLUTION: A gap is obtained between the two galvanized steel sheets when performing lap welding by preliminarily bending the one steel sheet by irradiation with a laser beam prior to welding of the two galvanized steel sheets. Both ends of the two steel sheets are restrained and the welding is performed while the stable gap is obtained. By such method, the explosion of the weld metal and the occurrence of the weld defect due to the occurrence of the zinc vapor can be reduced. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供具有优异焊缝形状和质量的镀锌钢板的搭接激光焊接方法，由此发生焊接金属的爆炸和由于锌蒸汽的发生而导致的焊接缺陷的发生可以减少两个镀锌钢板的双面激光焊接和镀锌钢板的无缺陷搭接焊接接头。解决方案：在两个镀锌钢板的焊接之前，通过用激光束预先弯曲一块钢板进行搭接焊接时，在两个镀锌钢板之间获得间隙。两个钢板的两端被抑制，并且在获得稳定的间隙的同时进行焊接。通过这种方法，可以减少焊接金属的爆炸和由锌蒸汽的发生引起的焊接缺陷的发生。版权所有（C）2005，JPO＆NCIPI

30. 发明专利

JP2004307004A Can body excellent in design property and manufacturing method for it 审中-公开
公开(公告)号：JP2004307004A
公开(公告)日：2004-11-04
申请号：JP2003102484
申请日：2003-04-07
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： DATE HIROMITSU , MIYASAKA AKIHIRO
IPC分类号： B65B53/00 , B65D25/20 , B65D25/36
摘要： PROBLEM TO BE SOLVED: To provide a can body with a beautiful appearance and a manufacturing method for it.
SOLUTION: This can body is manufactured by covering the outer face of the can body with a cylindrical film composed of a metal deposited layer with a thickness of 0.01-0.2 μm, a printed ink layer, and a resin layer with a thickness of 10-100 μm successively from the inner face side by heat shrinkage without sticking on the outer face of the can body. In addition, the metal deposited layer comprises aluminum or an aluminum alloy, and the resin layer is polyethylene terephthalate or polystyrene.
COPYRIGHT: (C)2005,JPO&NCIPI

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