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1. 发明专利

JP2006299341A Method for manufacturing galvannealed steel sheet 有权
标题翻译：制造钢化钢板的方法
公开(公告)号：JP2006299341A
公开(公告)日：2006-11-02
申请号：JP2005121831
申请日：2005-04-20
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ISHIZUKA KIYOKAZU , NISHIMURA KAZUMI , KIKUCHI IKUO , MIYASAKA AKIHIRO
IPC分类号： C23C2/28 , C23C2/02 , C23C2/06
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a galvannealed steel sheet having extremely adequate appearance.
SOLUTION: (1) The method for manufacturing the galvannealed steel sheet comprises the steps of: forming an Fe-Ni-Al-Zn alloy layer on an interface between the steel sheet and a galvanizing layer in a hot-dip galvanizing bath; and eliminating the Fe-Ni-Al-Zn alloy layer and simultaneously forming a Zn-Fe alloy layer having Ni and Al dispersed therein, by heat treatment. (2) The method for manufacturing the galvannealed steel sheet includes the steps of cleaning the surface of a steel sheet, pre-plating it with Ni into a coating weight of 0.05 to 1.0 g/m
2 , rapidly heating it to a sheet temperature of 430 to 500°C at a heating rate of 30°C/sec or higher in a non-oxidative or reducing atmosphere, hot-dipping it in a Zn plating bath containing 0.07 to 0.2 mass% Al, rapidly heating it to 470 to 600°C just above a wiping section at a heating rate of 30°C/sec or more, and cooling it without soaking it or cooling it after having soaked and held it for a period of less than 15 seconds, wherein an amount of pre-plated Ni (Yg/m
2 ) and a concentration (X%) of Al in the Zn plating bath satisfy the relationship of Y≤15*X-1.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有非常充分的外观的合金化热浸镀锌钢板的制造方法。（1）合金化热浸镀锌钢板的制造方法，其特征在于，在热浸镀锌浴中，在钢板和镀锌层之间的界面上形成Fe-Ni-Al-Zn合金层 ; 并通过热处理除去Fe-Ni-Al-Zn合金层并同时形成分散有Ni和Al的Zn-Fe合金层。（2）合金化热浸镀锌钢板的制造方法，其特征在于，将钢板的表面进行清洗，将其预镀Ni至0.05〜1.0g / m 2 SP / 2以上的涂布量在非氧化还原性气氛中以30℃/秒以上的加热速度将其加热到430〜500℃的片材温度，将其热浸在含有0.07〜0.2质量％的Al的Zn电镀浴中，在30℃/秒以上的加热速度下将其快速加热至擦拭部位470〜600℃，在不浸渍的状态下进行冷却，或者在浸渍后进行冷却，并保持15秒以下其中，Zn镀液中的Ni的预镀Ni量（Yg / m×SP> 2×SP）和Al的浓度（X％）满足Y≤15* X-1的关系。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2006249521A Zinc alloy plated steel with excellent weldability 有权
标题翻译：具有优异焊接性能的ZINC合金钢
公开(公告)号：JP2006249521A
公开(公告)日：2006-09-21
申请号：JP2005069182
申请日：2005-03-11
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 , NISHIMURA KAZUMI , ASAI KENICHI , TAKAHASHI AKIRA
IPC分类号： C22C38/00 , C22C18/00 , C22C18/04 , C22C38/14 , C23C2/06
摘要： PROBLEM TO BE SOLVED: To provide a zinc alloy plated steel having excellent weldability with which, when welding the zinc alloy plated steel having a tensile strength of base material not lower than 490 MPa class strength level and a thickness of 0.8 to 9 mm by various methods, liquid-metal embrittlement cracking occurring due to zinc alloy plating particularly in a weld heat-affected zone can be stably suppressed and high reliability welded joints can be obtained.
SOLUTION: The zinc alloy plated steel material with excellent weldability is a zinc alloy plated steel material having a zinc alloy plating layer on its surface and being characterized in that it contains, by mass, 0.01 to 0.3% C, 0.01 to 2.0% Si, 0.1 to 3.0% Mn, ≤0.015% S, 0.001 to 0.5% Al, 0.0005 to 0.006% N and further 0.01 to 0.60%, in total, of one or more elements among Nb, V and Zr; an E value as a sensitivity index of liquid-metal embrittlement represented by the following equation exceeds 0.24; and B content ranges from 3 ppm to -102×E+61 ppm: E value = [%C]+[%Si]/17+[%Mn]/7.5+[%Ni]/17+[%Nb]/2+[%V]/1.5+[%Zr]/2 (wherein, E value is the sensitivity index of liquid-metal embrittlement, and [%C], [%Si]... are each content by mass% of respective elements).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种焊接性优异的锌合金电镀钢，当将基材抗拉强度不低于490MPa等级强度水平和0.8至9的厚度的锌合金电镀钢焊接时通过各种方法，可以稳定地抑制由于锌合金电镀而特别是在焊接热影响区域中发生的液态金属脆化裂纹，并且可以获得高可靠性的焊接接头。解决方案：具有优异焊接性的锌合金镀覆钢材是其表面具有锌合金镀层的锌合金电镀钢材料，其特征在于其含量为0.01至0.3％C，0.01至2.0 Nb，V和Zr中的一种或多种元素的总和为0.1％，Si：0.1〜3.0％，≤0.015％S，0.001〜0.5％Al，0.0005〜0.006％N，进一步0.01〜0.60％由下式表示的作为液体 - 金属脆化的灵敏度指数的E值超过0.24; 并且B含量范围为3ppm至-102×E + 61ppm：E值= [％C] + [％Si] / 17 + [％Mn] /7.5 + [％Ni] / 17 + [％Nb] 2 + [％V] /1.5 + [％Zr] / 2（其中E值为液态金属脆化的灵敏度指数，[％C]，[％Si] 各元素）。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005273001A Steel sheet having high young's modulus and its production method 有权
标题翻译：具有高青年模块的钢板及其生产方法
公开(公告)号：JP2005273001A
公开(公告)日：2005-10-06
申请号：JP2004218132
申请日：2004-07-27
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： C21D9/46 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide a steel sheet whose Young's modulus in the rolling direction is high and to provide its production method.
SOLUTION: The steel sheet having a high Young's modulus has a composition comprising, by mass, 0.0005 to 0.30% C, ≤2.5% Si, 2.7 to 5.0% Mn, ≤0.15% P, ≤0.015% S, 0.15 to 1.5% Mo, 0.0006 to 0.01% B and ≤0.15% Al, and the balance Fe with inevitable impurities, and in which the extreme density of either or both of the {110} orientation and the {110} orientation in the 1/8 layer of the sheet thickness is ≥10, and the Young's modulus in the rolling direction is >230 GPa. If required, one or two kinds of Ti and Nb, or Ca, or one or more kinds selected from Sn, Co, Zn, W, Zr, V, Mg and rare earth metals, or one or more kinds selected from Ni, Cu and Cr are incorporated therein. Further, in the case hot rolling to the steel is finished at a temperature from an Ar3 transformation point to 750°C, the steel sheet having a Young's modulus particularly in the rolling direction can be obtained.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供轧制方向的杨氏模量高的钢板，并提供其制造方法。解决方案：具有高杨氏模量的钢板具有以下组成：质量百分比：0.0005〜0.30％的C，≤2.5％的Si，2.7〜5.0％的Mn，≤0.15％的P，≤0.015％的S，0.15〜 1.5％Mo，0.0006至0.01％B和≤0.15％Al，余量为Fe与不可避免的杂质，其中ä110} <223>方向和ä110} <111>方向中的任一个或两者的极限密度板厚的1/8层≥10，轧制方向的杨氏模量> 230GPa。如果需要，可以使用选自Sn，Co，Zn，W，Zr，V，Mg和稀土金属中的一种或两种Ti，Nb或Ca，或选自Ni，Cu中的一种或多种和Cr。此外，在从Ar 3相变点到750℃的温度下对钢的热轧完成的情况下，可以获得具有特别是轧制方向的杨氏模量的钢板。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005002415A Hot dip galvanized steel having excellent weldability 审中-公开
标题翻译：具有优异的焊接性能的热镀锌钢
公开(公告)号：JP2005002415A
公开(公告)日：2005-01-06
申请号：JP2003167480
申请日：2003-06-12
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MORIMOTO YASUHIDE , KODAMA SHINJI , HAMAYA HIDEKI , MIYASAKA AKIHIRO , NISHIMURA KAZUMI , HARA TAKUYA , ASAI KENICHI , TAKEI SHUICHI
IPC分类号： C23C2/06 , C23C2/02
摘要： PROBLEM TO BE SOLVED: To provide hot dip galvanized steel having excellent weldability, and in which the generation of liquid metal embrittlement cracks in the heat affected zone can be suppressed at the time when galvanized steel is welded by various methods.
SOLUTION: In the hot dip galvanized steel having excellent weldability, the boundary between steel and a hot dip galvanizing layer applied to the surface of the steel is provided with an Ni alloy plating layer comprising one or more kinds of metals selected from, by mass, 0.01 to 11% P, 0.01 to 13% B, 0.01 to 12% S, 0.01 to 25% Mo, 0.01 to 40% W, 0.01 to 50% Co, 0.01 to 30% Sn and 0.01 to 25% Mn, and the balance Ni with inevitable impurities.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有优异焊接性的热浸镀锌钢，并且在通过各种方法焊接镀锌钢板时，可以抑制热影响区中的液态金属脆化裂纹的产生。解决方案：在具有优异焊接性的热浸镀锌钢中，施加到钢表面的钢和热浸镀锌层之间的边界设置有包含一种或多种金属的Ni合金镀层，，0.01〜13％的B，0.01〜12％的S，0.01〜25％的Mo，0.01〜40％的W，0.01〜50％的Co，0.01〜30％的Sn和0.01〜25％的Mn ，余量为Ni与不可避免的杂质。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2004330299A Laser welding method excellent in weld strength 审中-公开
公开(公告)号：JP2004330299A
公开(公告)日：2004-11-25
申请号：JP2004069462
申请日：2004-03-11
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KODAMA SHINJI , MIYAZAKI YASUNOBU , MIYASAKA AKIHIRO , SHIMODA NOBUYUKI
IPC分类号： B23K26/00 , B23K26/20
摘要： PROBLEM TO BE SOLVED: To provide a laser welding method excellent in weld strength capable of preventing non-melting of a filler wire and a shortage of the deposited metal owing to the fluctuations of the filler wire feeding positions against the weld working point under the influence of filler wire characteristics or the like in the laser welding method using filler wires and further, capable of eliminating the generation of spatters. SOLUTION: In the laser welding method excellent in weld strength, the filler wire is fed to the weld working point, rocking the filler wire so as to traverse the laser optical axis and preferably, an oscillating amplitude of the filler wire is 0.5-4 mm or less, and an oscillating frequency of the filler wire is the larger value or more between the following two values: f1= [welding speed]/3 and f2= [feeding speed of the filler wire]/2 and the feeding speed of the filler wire is controlled based on a gap between steel plates. COPYRIGHT: (C)2005,JPO&NCIPI

6. 发明专利

JP2004285451A Plated steel sheet for di can, and its production method 审中-公开
标题翻译：用于DI罐的镀钢板及其生产方法
公开(公告)号：JP2004285451A
公开(公告)日：2004-10-14
申请号：JP2003081880
申请日：2003-03-25
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
摘要： PROBLEM TO BE SOLVED: To provide a plated steel sheet for a DI can which has high coating ability on its surface by plating metal even when being subjected to severe drawing-ironing, and exhibits a gloss appearance having whiteness higher than that of tin plate.
SOLUTION: In the plated steel sheet for a DI can and its production method, the surface to be formed into the outside face of a DI can is provided with an Al layer with a film thickness of 0.01 to 0.04 μm, an Sn layer with a film thickness of 0.l to 1 μm, and a chemical conversion treatment layer in order from the steel sheet side, and the face to be formed into the inside face of the can is provided with an Sn layer with a film thickness of 0.1 to 1 μm and a chemical conversion treatment layer from the steel sheet side.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种用于DI罐的镀覆钢板，即使在进行严格的拉伸熨烫时，也可以通过电镀金属在其表面上具有高的涂布能力，并且具有白度高于马口铁。解决方案：在用于DI罐的镀覆钢板及其制造方法中，要形成DI罐的外表面的表面设置有膜厚度为0.01至0.04μm的Al层，Sn 层的厚度为0.1〜1μm，化学转化处理层为从钢板侧开始，形成在罐内侧的面设置有具有膜厚度的Sn层为0.1〜1μm，来自钢板侧的化学转化处理层。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004204273A Agent and method for surface treatment of weather-resistant steel, and surface-treated weather-resistant steel of excellent weather resistance 审中-公开
标题翻译：耐候性表面处理剂和耐候性表面处理耐候钢的试剂和方法
公开(公告)号：JP2004204273A
公开(公告)日：2004-07-22
申请号：JP2002373421
申请日：2002-12-25
申请人： Nippon Steel Corp , R Shii I:Kk , Shinto Paint Co Ltd , 新日本製鐵株式会社 , 株式会社アール・シイ・アイ , 神東塗料株式会社
发明人： HARADA YOSHIYUKI , MIYASAKA AKIHIRO , OISHI YASUHISA , MATSUO SHUNICHI , NOMURA TOYOKAZU
IPC分类号： B05D5/00 , B05D7/14 , B32B15/08 , C09D5/00 , C09D129/14 , C23C22/42 , C23F11/00
摘要： PROBLEM TO BE SOLVED: To provide an environment-friendly surface treatment agent for weather-resistant steel, a surface treatment method for weather-resistant steel, and surface-treated weather-resistant steel of excellent weather resistance in a field weather-resistant steel application such as bridges and various kinds of buildings.
SOLUTION: The surface treatment agent contains alkaline earth vanadates, phosphate esters, polyvinyl butyral resin, and resin compatible with polyvinyl butyral resin. In the method for surface treatment of weather-resistant steel, the surface treatment agent is applied to weather-resistant steel and dried. The surface-treated weather-resistant steel of excellent weather resistance has a dry film formed thereon by the surface treatment method.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：为了提供耐候性钢的环境友好的表面处理剂，耐候性钢的表面处理方法和耐候性优异的表面处理耐候性钢，耐磨钢应用如桥梁和各种建筑物。
解决方案：表面处理剂含有碱土金属钒酸盐，磷酸酯，聚乙烯醇缩丁醛树脂和与聚乙烯醇缩丁醛树脂相容的树脂。在耐候性钢表面处理方法中，将表面处理剂用于耐候钢，并干燥。耐候性优异的表面处理耐候钢通过表面处理方法形成在其上的干膜。版权所有（C）2004，JPO＆NCIPI

8. 发明专利

JP2004149882A Method of improving reliability in hot dip plated metal structural member 有权
标题翻译：提高热镀锌金属结构件可靠性的方法
公开(公告)号：JP2004149882A
公开(公告)日：2004-05-27
申请号：JP2002318242
申请日：2002-10-31
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MIYASAKA AKIHIRO
IPC分类号： G01N21/91 , C23C2/06 , C23C2/26 , G01N27/84 , G01N27/90
摘要： PROBLEM TO BE SOLVED: To improve the quality and improve the reliability as that of a structural member in a hot dip plated metal structural member.
SOLUTION: In the method for increasing the quality of a hot dip plated metal structural member and improving its reliability as that of a structural member, after the application of hot dip plating to the metal structural member, (a) the presence of defects and their dimensions are confirmed with nondestructive testing; (b) the defect parts are subjected to ultrasonic impact treatment; and next, (c) the improvement of its quality is conformed in quality assurance testing.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提高质量并提高与浸镀金属结构件中的结构件的可靠性。解决方案：在提高热镀金属结构件的质量并提高其与结构件的可靠性的方法中，在向金属结构件施加热浸镀之后，（a）存在缺陷及其尺寸通过无损检测证实; （b）对缺陷部件进行超声波冲击处理; 接下来，（c）质量的提高符合质量保证测试。版权所有（C）2004，JPO

9. 发明专利

JP2004149850A Method for improving corrosion resistance of zinc plated steel sheet 有权
标题翻译：改善镀锌钢板耐腐蚀性的方法
公开(公告)号：JP2004149850A
公开(公告)日：2004-05-27
申请号：JP2002316326
申请日：2002-10-30
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MIYASAKA AKIHIRO , TOMINAGA NORIYOSHI
IPC分类号： C23C2/06 , C23C2/12 , C23F15/00
摘要： PROBLEM TO BE SOLVED: To provide a method for improving the corrosion resistance of the worked part in a zinc plated steel sheet subjected to working.
SOLUTION: In the method for improving the corrosion resistance of a zinc plated steel sheet, the steel sheet obtained by applying zinc plating comprising, by mass, ≥30% zinc to the surface of a steel sheet is worked, and the worked part of the steel sheet is subjected to ultrasonic impact treatment.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2004148957A High-strength propeller shaft with excellent durability and its method of manufacture 有权
公开(公告)号：JP2004148957A
公开(公告)日：2004-05-27
申请号：JP2002315657
申请日：2002-10-30
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MIYASAKA AKIHIRO , TOMINAGA NORIYOSHI , HIROSHIGE ITSURO
IPC分类号： B60K17/22 , F16C3/02 , F16F15/32 , F16F15/34
CPC分类号： F16F15/34 , F16C3/02
摘要： PROBLEM TO BE SOLVED: To provide a high-strength propeller shaft and its method of manufacture in which an anti-twisting fatigue characteristic is improved at a welding part of a balancing piece welded to a steel pipe with a tension strength of 700 N/mm
2 or more.
SOLUTION: There is provided a high-strength propeller shaft in which power-transmitting parts are connected to both ends of a steel pipe with a tension strength of 700 N/mm
2 or more and a balancing piece is welded to a circumferential surface of the steel pipe, and a back surface of the welded part of the balancing piece is formed with a plastic deformation region through a peening process of an ultrasonic vibration, for example.
COPYRIGHT: (C)2004,JPO

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