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1. 发明专利

JP2005290465A White chromate treatment method imparting excellent corrosion resistance, fingerprint resistance and weldability and steel sheet subjected to the white chromate treatment 审中-公开
标题翻译：白色铬酸盐处理方法提高了极好的耐腐蚀性，指纹电阻和焊接性以及受白色铬处理的钢板
公开(公告)号：JP2005290465A
公开(公告)日：2005-10-20
申请号：JP2004106317
申请日：2004-03-31
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ENDO TAKEJI , TANAKA TAKAATSU , NISHIMURA KUNIO , YATO HISANARI , ISAKI TERUAKI , KOYAMA ISAAKI , MISHIMA TOSHIAKI , FUSEYA KAZUNARI
IPC分类号： C23C22/33
摘要： PROBLEM TO BE SOLVED: To provide a chromate treatment method capable of forming a white chromate film simultaneously satisfying corrosion resistance, fingerprint resistance and weldability on the surface of galvanized steel, and to provide a steel sheet subjected to the treatment.
SOLUTION: In the white chromate treatment method imparting excellent corrosion resistance, fingerprint resistance and weldability, the surface of galvanized steel is coated with a chromate treatment aqueous solution containing a chromic acid compound in which the chromium reduction ratio (Cr
3+ /Cr
3+ +Cr
6+ ) is >50 to 60% by 9 to 12 g/L, silica by 13/2 to 7/1 expressed in terms of SiO
2 /the total chromium content (weight ratio), and phosphoric acid by 16 to 24 g/L, so as to be heated and dried.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够形成同时满足镀锌钢板表面的耐腐蚀性，耐指纹性和焊接性的白色铬酸盐膜的铬酸盐处理方法，并提供经过处理的钢板。解决方案：在赋予耐腐蚀性，耐指纹性和焊接性的白色铬酸盐处理方法中，镀铬钢表面涂覆有铬酸盐处理水溶液，其中铬酸盐化合物的铬还原率（Cr 3 + / Cr 3 + + Cr 6 + ）为50〜60％×9〜12g / L，二氧化硅为13/2〜7 / 1表示为SiO 2 /总铬含量（重量比），磷酸为16〜24g / L，进行加热干燥。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005272967A METHOD FOR MANUFACTURING HOT DIP Al TYPE COATED STEEL SHEET HAVING DECREASED PLATING DEFECTS 有权
标题翻译：用于制造具有减少的镀层缺陷的热DIP铝型涂层钢板的方法
公开(公告)号：JP2005272967A
公开(公告)日：2005-10-06
申请号：JP2004090351
申请日：2004-03-25
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MAKI JUN , KUROSAKI MASAO , ISAKI TERUAKI
IPC分类号： C23C2/12 , C21D1/76 , C22C18/04 , C22C21/02 , C22C38/00 , C23C2/02 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a hot dip Al coated steel sheet which suppresses the occurrence of plating defects.
SOLUTION: The method for manufacturing the hot dip Al type coated steel sheet having the decreased plating defects comprises heating a steel sheet in an atmosphere containing moisture of a dew point of below -10°C in such a manner that the maximum ultimate temperature of the sheet attains 650 to 880°C and the time when the sheet is heated to ≥600°C attains ≥10 seconds, then cooling the sheet to control the sheet temperature to 630 to 700°C and immersing the sheet into an Al plating bath of 620 to 720°C in bath temperature for ≤3 seconds, in which the Al plating bath is composed of, mass %, 0.03 to 2% the total of one kind or more of elements of Mg, Ca, Li and Mn, 0.01 to 15% Si, and the balance Al and inevitable impurities. The high-speed passage of the hot dip Al coated steel sheet is made possible.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供抑制电镀缺陷的发生的热浸镀铝钢板的制造方法。解决方案：具有减少的电镀缺陷的热浸Al型涂层钢板的制造方法包括在露点低于-10℃的气氛中加热钢板，使得最大极限片材的温度达到650〜880℃，片材加热至≥600℃的时间达到≥10秒，然后冷却片材以将片材温度控制在630〜700℃，并将片材浸入Al 电镀浴620〜720℃，浴温≤3秒，其中Al镀液为质量％，Mg，Ca，Li，Mn元素总量的0.03〜2％，0.01〜15％的Si，余量为Al和不可避免的杂质。热镀铝钢板的高速通道成为可能。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2004298964A EDGE JOINT OF Sn- OR Pb-BASED GALVANIZED STEEL SHEET AND ITS LASER WELDING METHOD 有权
公开(公告)号：JP2004298964A
公开(公告)日：2004-10-28
申请号：JP2004079049
申请日：2004-03-18
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SAIDA KENJI , MIYAZAKI YASUNOBU , SENUMA TAKEHIDE , KUROSAKI MASAO , ISAKI TERUAKI
IPC分类号： B23K26/00 , B23K26/20 , B23K26/32 , B23K103/16
摘要： PROBLEM TO BE SOLVED: To provide a method for performing laser welding by overlapping SN-base or Pb-base galvanized steel sheet, with which overlap welding can be performed for the peripheral flange of a half shell body having a short flange length and subjected to negative angle shaping, segregation of an Sn or a Pb component into a weld metal part is suppressed, and joint strength is enhanced. SOLUTION: In the edge joint of the Sn-based or Pb-based galvanized steel sheet and its laser welding method, on the end face of the overlapped part of the Sn-based or Pb-based galvanized steel sheet, a weld zone is provided comprising a weld metal whose average width is 0.5 mm or above and whose average penetration depth is 50% or above with respect to the average total thickness of the overlapped part. COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2004027281A Sn-Zn PLATING STEEL SHEET EXCELLENT IN SOLDER WETTABILITY 审中-公开
公开(公告)号：JP2004027281A
公开(公告)日：2004-01-29
申请号：JP2002184246
申请日：2002-06-25
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ISAKI TERUAKI , GOTO YASUTO
IPC分类号： B32B15/01 , C23C2/02 , C23C2/08 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide Sn-Zn plating steel sheet for electric components excellent in solder wettability and corrosion resistance, and which does not contain Pb.
SOLUTION: Sn-Zn plating steel sheet is coated with a resin film, the melt softening point of which is lower by 100°C or more than a temperature of a soldering bath used, and the thickness of which is 0.1 to 2.0 μm. Furthermore, after a steel sheet is sheared in the shape of a paper strip, aged under the conditions of temperature of 105°C and 100% RH saturation of humidity, then the short side of which is dipped in a rosin-methanol flux, immediately after that, dipped in a lead-free soldering bath, and it is desirable that time (zero cross time) until a stress value reaches 0 to be 5 seconds or less.
COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2003073851A Galvanized steel sheet superior in heat resistance and corrosion resistance 审中-公开
标题翻译：耐腐蚀和耐腐蚀性优良的钢板
公开(公告)号：JP2003073851A
公开(公告)日：2003-03-12
申请号：JP2001264728
申请日：2001-08-31
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ISAKI TERUAKI , FUDA MASAHIRO
IPC分类号： C23C22/53 , C23C28/00
CPC分类号： C23C28/3225 , C23C22/53 , C23C28/345 , C23C2222/10
摘要： PROBLEM TO BE SOLVED: To produce a galvanized steel sheet coated with a chemical conversion coating film, capable of being used for home electric appliances, car components or the like, which does not contain hexavalent chromium to reduce an environmental load, and mainly contains an inorganic component so as to be used also for heat resisting applications. SOLUTION: (1) The galvanized steel sheet superior in heat resistance and corrosion resistance, is obtained by treating a steel sheet with a conversion coating solution, which contains the inorganic components of a trivalent chromium compound (A) and water dispersible silica (B) as main components, and further a component for giving lubricity (C), and water. (2) The galvanized steel sheet superior in heat resistance and corrosion resistance is obtained by treating a steel sheet with the conversion coating solution according to claim (1), wherein a ratio of solid of the component (B) is 10-90 wt.% to the total solid of the coating solution of 100 wt.%. (3) The galvanized steel sheet superior in heat resistance and corrosion resistance according to either one of claim 1 or 2 is the one wherein the solution includes a metal salt of nitric acid (D) as an additional component, and the metal in the metal salt of nitric acid includes at least one kind selected from the group consisting of alkaline earth metals, Co, Ni, Fe, Zr, and Ti.
摘要翻译：要解决的问题：为了生产涂覆有化学转化涂膜的镀锌钢板，能够用于不含六价铬的家用电器，汽车部件等以降低环境负荷，并且主要包含无机组分，以便用于耐热应用。解决方案：（1）耐热性和耐腐蚀性优异的镀锌钢板通过用含有三价铬化合物（A）和水分散性二氧化硅（B）的无机成分的转化涂层溶液处理钢板而获得，作为主要成分，还有用于赋予润滑性（C）的成分和水。（2）通过用权利要求1所述的转化涂布液处理钢板，得到耐热性和耐腐蚀性优异的镀锌钢板，其中成分（B）的固体比例为10-90wt。％至100重量％的涂布溶液的总固体。（3）根据权利要求1或2中任一项所述的耐热性和耐腐蚀性优异的镀锌钢板是其中所述溶液包含作为附加成分的硝酸金属盐（D）和所述金属中的金属硝酸盐包括选自碱土金属，Co，Ni，Fe，Zr和Ti中的至少一种。

6. 发明专利

JP2003049256A High-strength aluminum-plated steel sheet with superior weldability and corrosion resistance after coating for automobile, and automotive member using it 有权
标题翻译：具有超级焊接性能和耐磨性的高强度铝镀层钢板，汽车涂料和汽车零部件
公开(公告)号：JP2003049256A
公开(公告)日：2003-02-21
申请号：JP2001241633
申请日：2001-08-09
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MAKI JUN , SUEHIRO MASAYOSHI , ISAKI TERUAKI , MIYAKOSHI TOSHIHIRO
IPC分类号： C23C2/12 , C23C2/28 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To provide a high-strength Al-plated steel sheet having superior weldability and corrosion resistance after coating for automotive member, and an automotive member using it.
SOLUTION: A layer of an intermetallic compound composed essentially of Al and Fe is formed on the surface of a base material having ≥250 hardness, and the thickness of the intermetallic compound layer is made to 3-35 μm. Preferred thickness is ≤18 μm. Further, the intermetallic compound can contain Si.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种用于汽车部件的涂覆后具有优异的焊接性和耐腐蚀性的高强度镀覆钢板以及使用它的汽车部件。解决方案：在具有> = 250硬度的基材的表面上形成基本上由Al和Fe组成的金属间化合物层，并且使金属间化合物层的厚度为3-35μm。优选的厚度<=18μm。此外，金属间化合物可以含有Si。

7. 发明专利

JP2005324235A Laser beam welding method of edge joint of plated steel sheet 有权
标题翻译：激光焊接焊接方法的焊缝焊接钢板
公开(公告)号：JP2005324235A
公开(公告)日：2005-11-24
申请号：JP2004145520
申请日：2004-05-14
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SAIDA KENJI , MIYAZAKI YASUNOBU , SENUMA TAKEHIDE , KUROSAKI MASAO , ISAKI TERUAKI , MIZUGUCHI TOSHINORI
IPC分类号： B23K26/00 , B23K26/06 , B23K26/20 , B23K103/04 , B23K103/16
摘要： PROBLEM TO BE SOLVED: To provide the laser beam welding method of an edge joint of a plated steel sheet with which end faces of an overlapped portion of the edge joint of the plated steel sheet is laser-welded, the flange length is made short, circumferential edge flanges of semi-shell bodies shaped at a negative angle are overlap-welded, excellent joint strength is maintained, and any welding defects such as blowholes are not caused. SOLUTION: Circumferential edge flanges of a pair of semi-shell bodies formed of an Al-based plated steel sheet, a Zn-Ni based plated steel sheet or a Sn-Zn based plated steel sheet are overlapped each other, and end faces thereof are irradiated with laser beams under the condition in which the gap G1 at the end faces of the overlapped portion and the gap G2 at the position separate from the end faces by the flange length FL satisfy the inequality 1 ≤ (G2-G1)/FL × 100. Further, the weld metal is deposited on the end face so that the mean depth of fusion of the weld metal is ≥50% of the mean total thickness of the overlapped portion, and/or the mean width of the weld metal is ≥0.5 mm. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供激光焊接电镀钢板的边缘接头的重叠部分的端面的镀覆钢板的边缘接头的激光束焊接方法，凸缘长度为形成为负角度的半壳体的短圆周边缘凸缘重叠焊接，保持优异的接合强度，并且不会引起任何焊接缺陷如气孔。解决方案：由Al系镀覆钢板，Zn-Ni系镀覆钢板或Sn-Zn系镀覆钢板构成的一对半壳体的圆周缘凸缘彼此重叠，并且结束在这样的条件下，用激光束照射其表面，其中在重叠部分的端面处的间隙G1和与端面与凸缘长度FL分开的位置处的间隙G2满足不等式1≤（G2-G1） / FL×100。此外，焊接金属沉积在端面上，使得焊接金属的平均熔融深度为重叠部分的平均总厚度的≥50％，和/或焊缝的平均宽度金属≥0.5mm。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2002371378A Aluminized steel sheet superior in spot weldability 审中-公开
标题翻译：铝合金钢板超高温焊点
公开(公告)号：JP2002371378A
公开(公告)日：2002-12-26
申请号：JP2001128775
申请日：2001-04-26
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ISAKI TERUAKI , FUDA MASAHIRO , SAKIYAMA TATSUYA
IPC分类号： B23K11/16 , B23K11/34 , B23K103/04 , C23C22/06 , C23C22/24 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide a technology for controlling a nugget shape in spot welding an aluminized steel sheet, which is suitable for a fuel tank. SOLUTION: (1) The aluminized steel sheet superior in spot weldability has a chemical conversion coating mainly consisting of a chromium compound and water dispersible silica, on the aluminized steel sheet with a coating weight of 50 g/m or less per one side, and the electrification ohmic value which is controlled to be 10 mΩ or more but 100 mΩ or less, when measured for the two piled steel sheets with the chemical conversion coating. (2) The aluminized steel sheet superior in spot weldability has the aluminized layer which includes, by mass%, one or more of 3-15% Si, 0.1-15% Mg, and 0.1-50% Zn, and the balance aluminum with involuntary and/or unavoidable impurities. The employment of the aluminized steel sheet of which the electrification ohmic value is controlled to be 10 mΩ or more and 100 mΩ or less, when two steel sheets are piled and subjected to the measurement, enables a spot welding nugget to be stably formed, and the aluminized steel sheet most suitable for the fuel tank material to be obtained.
摘要翻译：要解决的问题：提供适用于燃料箱的镀铝钢板的点焊控制熔核形状的技术。解决方案：（1）点焊性优异的镀铝钢板，主要由铬化合物和水分散性二氧化硅组成的化学转化涂层，在镀铝钢板上，涂层重量为50g / m 2以下对于具有化学转化涂层的两个堆叠钢板测量时，控制的电气欧姆值为10mΩ以上且100mΩ以下。（2）点焊性优异的镀铝钢板具有以质量％计含有3-15％Si，0.1-15％Mg和0.1-50％Zn中的一种或多种的镀铝层，余量为非自愿和/或不可避免的杂质。当将两个钢板堆放并进行测量时，使电气欧姆值控制在10mΩ以上且100mΩ以下的镀铝钢板的使用能够稳定地形成点焊熔核，最适用于要获得的燃料箱材料的镀铝钢板。

9. 发明专利

JP2005179721A Surface treated steel sheet having excellent heat resistance, lubricity, and corrosion resistance 审中-公开
标题翻译：表面处理钢板具有优异的耐热性，耐腐蚀性和耐腐蚀性
公开(公告)号：JP2005179721A
公开(公告)日：2005-07-07
申请号：JP2003420689
申请日：2003-12-18
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SUGIYAMA SEIJI , ISAKI TERUAKI , KUROSAKI MASAO , GOTO YASUTO
IPC分类号： C10M103/06 , C10M143/02 , C10M143/04 , C10M159/06 , C10N10/06 , C10N10/08 , C10N10/14 , C10N30/06 , C10N30/08 , C10N30/12 , C10N50/08 , C23C22/06 , C23C26/00
摘要： PROBLEM TO BE SOLVED: To provide a surface treated steel sheet which excels in heat resistance, lubricity, and corrosion resistance and coated with a film which does not contain chromium being an environmental loading material.
SOLUTION: The surface treated steel sheet is subjected to coating treatment of the inorganic film which is composed of an inorganic compound as a principal component and is controlled in its film thickness (A) to a range where B/A≤5 is realized with respect to an average grain size (B) of a lubricant for imparting lubricity. The steel sheet is subjected to the coating treatment of the inorganic film obtained by drying the film at a temperature lower by ≥20°C than the minimum film forming temperature (MFT) of the lubricant and excels in the heat resistance, lubricity, and corrosion resistance. Also, the inorganic film contains a zirconium compound and a silica compound, or further one or two or more of a cerium compound, phosphate compound, fluorine compound, Mn compound, and Ti compound.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供耐热性，润滑性和耐腐蚀性优异的表面处理钢板，并且涂覆有不含铬的膜作为环境负载材料。解决方案：对表面处理钢板进行涂覆处理，该无机膜由无机化合物作为主要成分组成，并将其膜厚（A）控制在B /A≤5是实现了用于赋予润滑性的润滑剂的平均粒径（B）。对钢板进行涂膜处理，所得到的无机膜在比低于润滑剂的最低成膜温度（MFT）低于≥20℃的温度下进行干燥得到的无机膜，耐热性，润滑性和腐蚀性优异抵抗性。此外，无机膜含有锆化合物和二氧化硅化合物，或者还有一种或两种以上铈化合物，磷酸盐化合物，氟化合物，Mn化合物和Ti化合物。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2004232040A Aluminum plated steel sheet having excellent corrosion resistance, coating property and workability 有权
公开(公告)号：JP2004232040A
公开(公告)日：2004-08-19
申请号：JP2003023045
申请日：2003-01-31
申请人： Nippon Parkerizing Co Ltd , Nippon Steel Corp , 新日本製鐵株式会社 , 日本パーカライジング株式会社
发明人： YAMAGUCHI SHINICHI , KUROSAKI MASAO , ISAKI TERUAKI , TANAKA TAKAATSU , UENO KEIICHI , TANAKA KAZUYA , OZAKI TAKUMI
IPC分类号： B32B15/01 , C23C22/03 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide an aluminum plated steel sheet on which a corrosion resistant film is formed with a surface treatment chemical for an aluminum plated steel sheet free from chromium and fluorine compounds and reduced in an environmental load, and which can be used for an automobile fuel tank and exhaust system, or for building materials and house hold electric appliances.
SOLUTION: The aluminum plated steel sheet having excellent corrosion resistance, coating properties, weldability and workability is obtained by providing the surface of an aluminum plated steel sheet having a plating layer composition comprising, by mass, ≥70% Al with a composite film consisting of a zirconium compound, a vanadium compound, a silica compound, a phosphoric acid compound and an organic compound having at least one functional group selected from a hydroxyl group, a carbonyl group and a carboxyl group. The composite film comprises, per one side, the zirconium compound by 2 to 1,200 mg/m
2 in terms of zirconium, the vanadium compound by 0.1 to 300 mg/m
2 in terms of vanadium, and the phosphoric acid compound by 0.3 to 450 mg/m
2 expressed in terms of PO
4 , and the content of chromium and chromium compounds is ≤0.1 mg/m
2 in terms of chromium, and the content of fluorine and fluorine compounds is ≤0.1 mg/m
2 in terms of fluorine.
COPYRIGHT: (C)2004,JPO&NCIPI

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