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1. 发明专利

JP2011202255A Welded structure 审中-公开
标题翻译：焊接结构
公开(公告)号：JP2011202255A
公开(公告)日：2011-10-13
申请号：JP2010072616
申请日：2010-03-26
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： NONOMURA AKIHIRO , KONO AKINORI , HARADA WAKAHIRO
IPC分类号： C22C38/00 , C21D9/46 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a welded structure having excellent corrosion resistance in which the corrosion resistance of a weld gap part or the like is not reduced even if water having high hardness is used.SOLUTION: The welded structure having excellent corrosion resistance in the weld zone stores water or hot water having a hardness of ≥50 mg/l, the average Cr concentration in an oxide film within 5 mm from a welded part is Cr>35 atom% within 15 nm from the surface layer, and the material constituting the welded structure is composed of, by mass, ≤0.02% C, ≤3% Si, ≤3% Mn, ≤0.04% P, ≤0.03% S, 0.2 to 3% Ni, 20 to 30% Cr, ≤3% Mo, 0.05 to 0.6% Nb, 0.05 to 0.4% Ti, ≤0.03% N and 0.02 to 0.5% Al, and the balance Fe with inevitable impurities.
摘要翻译：要解决的问题：提供一种具有优良耐腐蚀性的焊接结构，其中即使使用具有高硬度的水，焊接间隙部分等的耐腐蚀性也不会降低。解决方案：具有优异的耐腐蚀性的焊接结构焊接区存储硬度≥50mg/ l的水或热水，焊接部分5mm以内的氧化膜中的平均Cr浓度在表面层15nm以内为> 35原子％，构成材料焊接结构质量分别为≤0.02％C，≤3％Si，≤3％Mn，≤0.04％P，≤0.03％S，0.2〜3％Ni，20〜30％Cr，≤3％ Mo，0.05〜0.6％的Nb，0.05〜0.4％的Ti，≤0.03％的N和0.02〜0.5％的Al，余量为Fe与不可避免的杂质。

2. 发明专利

JP2011068967A Water storage tank constructed by welding panel made from stainless steel 审中-公开
标题翻译：由不锈钢焊接面板构成的储水罐
公开(公告)号：JP2011068967A
公开(公告)日：2011-04-07
申请号：JP2009222267
申请日：2009-09-28
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： ADACHI TOSHIRO , NONOMURA AKIHIRO , TOMIMURA HIROKI , KONO AKINORI
IPC分类号： C22C38/00 , B23K9/00 , B23K9/23 , B23K103/04 , C22C38/50 , E04H7/04
摘要： PROBLEM TO BE SOLVED: To provide a water storage tank constructed by welding, which uses a stainless steel material in which corrosion resistance, particularly pitting corrosion resistance is little lowered by TIG welding, for a panel of a water storage tank, is suitable for the water storage tank that stores clean water in as welded state, can improve a working environment by eliminating an oxide-scale removal operation and decrease the cost necessary therefor, has weatherability little lowered by polish burn, and is superior in the weatherability of the panel.
SOLUTION: The water storage tank constructed by welding can be obtained by using a ferritic stainless steel as the material of the panel of the water storage tank, which comprises elements controlled to, by mass%, 0.02% or less C, 0.1-1% Si, 0.4% or less Mn, 0.04% or less P, 0.005% or less S, 0.3-2% Ni, 0.8% or less Cu, 23-26% Cr, 0.2% or more but less than 0.8% Mo, 0.1-0.5% Nb, 0.15-0.4% Ti, 0.025% or less N, 0.04-0.3% Al, 0.002% or less Ca, and the balance Fe with other unavoidable impurities. Thereby, the water storage tank is superior in the pitting corrosion resistance in the TIG-welded part, has the weatherability little lowered by the polish burn even if the panel material has been surface-finished by polish finishing with #300 or more, and can eliminate the scale removal operation for the welded part of the inner surface of the water storage tank, when the water storage tank is constructed by welding the panel.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种通过焊接制造的储水箱，其使用通过TIG焊接对储水箱的面板使用耐腐蚀性，特别是耐点蚀性能降低很少的不锈钢材料，是适用于储存清洁水作为焊接状态的储水罐，可以通过消除氧化物去除操作并降低其所需的成本来改善工作环境，通过抛光燃烧几乎不降低耐候性，并且具有优异的耐候性面板。
解决方案：通过使用铁素体不锈钢作为储水箱面板的材料，可以获得通过焊接构成的储水罐，其包含以质量％计为0.02％以下的元素C，0.1 -1％Si，0.4％以下Mn，0.04％以下P，0.005％以下S，0.3-2％Ni，0.8％以下Cu，23〜26％Cr，0.2％以上且小于0.8％ Mo，0.1-0.5％Nb，0.15-0.4％Ti，0.025％以下N，0.04-0.3％Al，0.002％以下的Ca，余量为Fe与其他不可避免的杂质。因此，储水箱的TIG焊接部件的耐点腐蚀性优异，即使通过＃300以上的抛光加工对面板材进行了表面处理，也可以通过抛光烧伤降低耐候性，并且可以当通过焊接面板构造储水箱时，消除储水箱内表面的焊接部分的除垢操作。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2010095768A Cu-PLATED FERRITIC STAINLESS STEEL SHEET AND MULTIPLY-WOUND STEEL PIPE 有权
标题翻译：铜镀铬不锈钢板和多用途钢管
公开(公告)号：JP2010095768A
公开(公告)日：2010-04-30
申请号：JP2008268537
申请日：2008-10-17
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： TOMIMURA HIROKI , MIZOGUCHI TAICHIRO , KONO AKINORI
IPC分类号： C22C38/00 , C22C9/00 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a Cu-plated ferritic stainless steel sheet which remarkably suppresses the coarsening of crystal grains in fusion bonding treatment between Cu-plated layers, and is suitable for a multiple-wound steel pipe. SOLUTION: The Cu-plated stainless steel sheet uses a ferritic stainless steel sheet as its substrate, which includes, by mass%, 0.03% or less C, 3% or less Si, 2% or less Mn, 0.05% or less P, 0.03% or less S, 11-30% Cr, 0.15-0.8% Nb, 0.03% or less N, optionally, 0.4% or less in total of one or more of Ti and Al, 4% or less in total of one or more of Mo, Cu, V and W, 5% or less in total of one or more of Ni and Co, and the balance Fe with unavoidable impurities; has a value A of 0.1 or more, which is determined by A=Nb-(C×92.9/12+N×92.9/14) when Ti≤N, and A=Nb-C×(92.9/12)/2 when Ti>N; and contains precipitates of which the maximum particle diameter is 0.25 μm or smaller and of which the area rate is 0.05% or more. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种镀Cu的铁素体不锈钢板，其显着地抑制了Cu镀层之间的熔融结合处理中的晶粒的粗大化，并且适用于多重卷绕的钢管。镀层不锈钢板以铁素体系不锈钢板为基材，以质量％计含有0.03％以下的C，3％以下的Si，2％以下的Mn，0.05％以及较少的P，0.03％或更少的S，11-30％的Cr，0.15-0.8％的Nb，0.03％或更少的N，任选地，总计为0.4％或更少的Ti和Al中的一种或多种，总共为4％或更少 Mo，Cu，V和W中的一种或多种，一种或多种Ni和Co总计为5％或更少，余量为不可避免的杂质; 当Ti≤N，A = Nb-C×（92.9 / 12）/ 2时，由A = Nb-（C×92.9 / 12 + N×92.9 / 14）确定的值A为0.1以上的值的Ti> N; 并且含有最大粒径为0.25μm以下且其面积率为0.05％以上的析出物。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2014192012A Stainless steel sheet having low contact resistance 有权
标题翻译：不锈钢板具有低接触电阻
公开(公告)号：JP2014192012A
公开(公告)日：2014-10-06
申请号：JP2013066903
申请日：2013-03-27
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： KONO AKINORI , IWAMIZU YOSHIHARU , TAI ZENICHI , SAITO MINORU
IPC分类号： H01B1/02 , C21D9/46 , C25D11/00
摘要： PROBLEM TO BE SOLVED: To provide a stainless steel suitable for a contact member having low contact resistance and having high corrosion resistance.SOLUTION: The stainless steel for a contact member is characterized in that the average Cr cation fraction in a passive state film is 50% or higher, the carbonitrides of Ti are distributed into a steel stock, the area ratio of carbonitrides obtained by cross-sectional observation is 0.04% or higher, the strength ratio of TiOto TiOin the surface XPS analysis of the exposed Ti carbonitrides is 0.6 or higher, and its contact resistance is below 10 mΩ cm.
摘要翻译：要解决的问题：提供适合于具有低接触电阻和高耐腐蚀性的接触构件的不锈钢。解决方案：用于接触构件的不锈钢的特征在于，被动状态膜中的平均Cr阳离子分数为50 ％以上，Ti的碳氮化物分布在钢材中，通过横截面观察得到的碳氮化物的面积比为0.04％以上，暴露的Ti碳氮化物的表面XPS分析中的TiO 2 TiO 2的强度比为0.6或较高，其接触电阻低于10m＆OHgr; 厘米。

5. 发明专利

JP2009299182A Ferritic stainless steel 有权
标题翻译：铁质不锈钢
公开(公告)号：JP2009299182A
公开(公告)日：2009-12-24
申请号：JP2009083001
申请日：2009-03-30
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： KONO AKINORI , MIZOGUCHI TAICHIRO , TOMIMURA HIROKI , HARADA WAKAHIRO
IPC分类号： C22C38/00 , C21D9/46 , C22C38/38 , C22C38/58
CPC分类号： C21D6/002 , B23K35/302 , B23K35/3033 , B23K2203/05 , C21D8/0226 , C21D8/0236 , C21D8/0273 , C22C38/02 , C22C38/04 , C22C38/26 , F28F21/083 , Y10T428/12979
摘要： PROBLEM TO BE SOLVED: To provide a ferritic stainless steel suitable as a heat exchange material for Ni brazing or Cu brazing. SOLUTION: Disclosed is a ferritic stainless steel containing, by mass, C: 0.03% or less, Si: 3% or less, Mn: 2% or less, P: 0.05% or less, S: 0.03% or less, Cr: 11 to 30%, Nb: 0.15 to 0.8%, and N: 0.03% or less, with the remainder comprising Fe and unavoidable impurities, and for which the value A is 0.10 to or higher. A=Nb-(C×92.9/12+N×92.9/14). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供适合作为Ni钎焊或Cu钎焊的热交换材料的铁素体不锈钢。解决方案：公开了一种铁素体不锈钢，其质量比为C：0.03％以下，Si：3％以下，Mn：2％以下，P：0.05％以下，S：0.03％以下，Cr：11〜30％，Nb：0.15〜0.8％，N：0.03％以下，余量由Fe和不可避免的杂质构成，值A为0.10以上。 A = Nb-（C×92.9 / 12 + N×92.9 / 14）。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2013204741A Stainless steel pipe joint 审中-公开
标题翻译：不锈钢管接头
公开(公告)号：JP2013204741A
公开(公告)日：2013-10-07
申请号：JP2012075672
申请日：2012-03-29
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： KONO AKINORI , HARADA WAKAHIRO
IPC分类号： F16L21/02 , B21C37/08 , B21C37/28 , B21D51/16 , C22C9/04 , C22C38/00 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a stainless steel pipe joint which is inexpensive and is excellent in corrosion resistance in a piping portion.SOLUTION: An end portion of a stainless steel pipe manufactured by TIG welding, high frequency welding or laser welding, is flared. A Cu alloy O-ring containing Zn at 20 mass% or more and a resin or rubber O-ring for preventing water leakage are mounted.
摘要翻译：要解决的问题：提供一种廉价且在管道部分中耐腐蚀性优异的不锈钢管接头。解决方案：通过TIG焊接，高频焊接或激光焊接制造的不锈钢管的端部被展开。安装含有20质量％以上的Zn的Cu合金O型圈和防止漏水的树脂或橡胶O形环。

7. 发明专利

JP2011200927A Welded structure 审中-公开
标题翻译：焊接结构
公开(公告)号：JP2011200927A
公开(公告)日：2011-10-13
申请号：JP2010072620
申请日：2010-03-26
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： NONOMURA AKIHIRO , KONO AKINORI , YAMAMOTO OSAMU , HARADA WAKAHIRO
IPC分类号： B23K9/00 , B23K9/02 , B23K33/00 , C22C38/00 , C22C38/50 , F24H9/00
摘要： PROBLEM TO BE SOLVED: To provide a welded structure that hardly develops corrosion in welding gaps even in welding execution without implementing Ar back gas seal.SOLUTION: A welded structure having a gap structure is characterized in that, in joining a shell plate and an end plate by welding, a welding gap part is formed, with the shell plate protruded ≥5 mm from a weld bond and with a gap interval of a weld zone set ≤20 μm, and that Cr in the scale composition of the welding gap part is ≥20 atom%.
摘要翻译：要解决的问题：提供即使在不执行Ar背气密封的情况下即使在焊接执行中也难以在焊缝中产生腐蚀的焊接结构。解决方案：具有间隙结构的焊接结构的特征在于，在将壳板和端部焊接板形成焊接间隙部，壳板从焊接点突出≥5mm，焊接区间隔设定为≤20μm，焊缝间隙部分的Cr组成为Cr ≥20原子％。

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