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1. 发明专利

JP2012017522A Steel material for line pipe 有权
标题翻译：线管用钢材
公开(公告)号：JP2012017522A
公开(公告)日：2012-01-26
申请号：JP2011126007
申请日：2011-06-06
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： INOKARI GENKI , NAKAMURA HIROSHI , YUKI HIDEAKI , KAMIMURA TAKAYUKI , KAJIMA KAZUYUKI
IPC分类号： C22C38/00 , C22C38/16 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel material for a line pipe having a tensile strength of 760 MPa or more, excellent in deformability after strain-ageing.SOLUTION: A steel material having chemical-composition containing respective prescribed contents of C, Si, Mn, Cu, Ni, Mo. Nb, Ti and Al and the balance Fe with impurities of P, S, N and O in the respective prescribed contents or lower, is used to have a composite structure consisting a ferrite of 5-30%, an island martensite of 3-20% and bainite in microstructure.
摘要翻译：解决的问题：提供拉伸强度为760MPa以上的线管用钢材，应变时效后的变形性优异。解决方案：具有含有规定含量的C，Si，Mn，Cu，Ni，Mo.Nb，Ti和Al的化学成分的钢材，余量为P，S，N和O的杂质的Fe 各自规定的含量以下，用于具有铁素体5-30％，岛状马氏体为3-20％的复合结构和贝氏体组织。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2011208200A Surface-treated corrosion-resistant steel material having excellent weather resistance 有权
标题翻译：表面处理耐腐蚀钢材具有极好的耐候性
公开(公告)号：JP2011208200A
公开(公告)日：2011-10-20
申请号：JP2010075777
申请日：2010-03-29
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： SUGAE KIYONOBU , KAMIMURA TAKAYUKI , KAJIMA KAZUYUKI , YUKI HIDEAKI
IPC分类号： C23C22/30 , C22C38/00 , C22C38/58 , C23C22/50
摘要： PROBLEM TO BE SOLVED: To provide a surface-treated steel material capable of maintaining high weather resistance for a long period of time in an environment abounding with salt spray.SOLUTION: The surface-treated steel material includes: a base material having a chemical composition including, by mass%, from 0.001 to 0.20% of C, 2.5% or less of Si, over 0.5% and not more than 2.5% of Mn, 0.03% or less of P, 0.005% or less of S, 0.05% or less of Ni, from 0.01 to 3.0% of Cr, from 0.003% to 0.1% of Al, from 0.001% to 0.1% of N, from 0.01% to 0.50% of Sn, and the balance Fe and inevitable impurities; and a coating film for accelerating generation of a protective rust layer on the base material, the coating film containing, with respect to the whole mass of the coating film, from 5 mass% to 19 mass% of a trivalent chromium ion, 1 mass% or more of an anion, and a binder component.
摘要翻译：要解决的问题：提供一种能够在大量盐雾的环境中长时间保持高耐候性的表面处理钢材。解决方案：表面处理钢材包括：具有化学成分的基材包括质量％，C：0.001〜0.20％，Si：2.5％以下，Mn：0.5％以上2.5％以下，P：0.03％以下，S：0.005％以下，0.05％以下较少的Ni，0.01〜3.0％的Cr，0.003〜0.1％的Al，0.001〜0.1％的N，0.01〜0.50％的Sn，余量为Fe和不可避免的杂质; 以及用于在基材上加速产生防锈层的涂膜，所述涂膜相对于整个涂膜的质量含有5质量％至19质量％的三价铬离子，1质量％或更多的阴离子和粘合剂组分。

3. 发明专利

JP2009127076A Corrosion resistant steel product for cargo oil tank 有权
标题翻译：用于油罐的耐腐蚀钢产品
公开(公告)号：JP2009127076A
公开(公告)日：2009-06-11
申请号：JP2007302337
申请日：2007-11-22
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KAJIMA KAZUYUKI , YUKI HIDEAKI , KAMIMURA TAKAYUKI
IPC分类号： C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a corrosion resistant steel product for cargo oil tank, which has excellent resistance to general corrosion and localized corrosion and superior toughness in a large heat input welded joint, while using neither Cu nor Ni.
SOLUTION: The corrosion resistant steel product for cargo oil tank has a composition which consists of, by mass, 0.01 to 0.2% C, 0.01 to 1% Si, 0.05 to 2% Mn, ≤0.05% P, ≤0.01% S, 0.01 to 0.3% Sn, ≤0.1% Cr, ≤0.1% Al and the balance Fe with impurities and in which Cu and Ni, among the impurities, are
摘要翻译：要解决的问题：提供用于货油罐的耐腐蚀钢产品，其在不使用Cu或Ni的同时，在大的热输入焊接接头中具有优异的耐一般腐蚀性和局部腐蚀性以及优异的韧性。
解决方案：货油罐的耐腐蚀钢产品，其组成为：质量为0.01〜0.2％，0.01〜1％的Si，0.05〜2％的Mn，≤0.05％的P，≤0.01％ S，0.01〜0.3％Sn，≤0.1％Cr，≤0.1％Al，余量为杂质，其中杂质中的Cu和Ni分别为<0.05％和<0.05％。此外，可以含有Mo，W，Sb，Ti，Zr，Nb，V，B，Ca和Mg中的一种或多种元素。此外，其表面可以涂覆有腐蚀保护膜。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2007230088A Resin-coated steel excellent in long-term durability in environment high in chloride concentration and method for producing the steel 有权
标题翻译：在氯化物浓度高的环境中长期耐久性的树脂涂层钢和生产钢的方法
公开(公告)号：JP2007230088A
公开(公告)日：2007-09-13
申请号：JP2006054898
申请日：2006-03-01
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KAMIMURA TAKAYUKI , YUKI HIDEAKI , KAJIMA KAZUYUKI
IPC分类号： B32B15/08 , B05D3/10 , B05D7/14 , C23C22/50 , C23C28/00 , C23F15/00
摘要： PROBLEM TO BE SOLVED: To provide resin-coated steel which indicates excellent long-term durability even in an environment high in chloride ion concentration and can greatly extend a coating life until the steel is re-coated.
SOLUTION: An acidic aqueous solution of pH≤3 containing Sn
2+ ions is applied on the surface of or on a rust layer formed on the structural steel of 30-100 μm surface roughness Rz to form an Sn-containing layer having a deposit amount of 15-400 mg/m
2 in terms of metallic Sn (converted). The layer is coated or lined with a corrosion preventing resin film of at least 20 μm dry film thickness.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供即使在氯离子浓度高的环境中也具有优异的长期耐久性的树脂涂层钢，并且可以大大延长涂层寿命，直到钢被重新涂覆。
解决方案：将含有Sn 2 + 离子的pH≤3的酸性水溶液施加在形成在结构钢上的锈层上或其上的30-100μm表面粗糙度Rz至根据金属Sn（转化）形成沉积量为15〜400mg / m 2的Sn含量层。该层被涂覆或衬有至少20μm干膜厚度的防腐蚀树脂膜。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2004099921A Seawater resistant steel and manufacturing method 有权
公开(公告)号：JP2004099921A
公开(公告)日：2004-04-02
申请号：JP2002259594
申请日：2002-09-05
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KAJIMA KAZUYUKI , YUKI HIDEAKI , FUJIWARA TOMOYA , KAMIMURA TAKAYUKI
IPC分类号： C21D8/02 , C22C38/00 , C22C38/18 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive seawater resistant steel which shows adequate corrosion resistance with a few kinds and a few quantities of alloy elements, and the seawater resistant steel showing more adequate corrosion resistance, and to provided a manufacturing method therefor.
SOLUTION: The seawater resistant steel comprises 0.04% or less C, 1.5% or less Si, 5.0% or less Mn, 1.0 to 5.0% Cr, 0.003 to 0.05% sol. Al, the balance substantially Fe, and 0.003% or less S, 0.008% or less N, and 0.005% or less O, in the impurities. The steel may include one or more among predetermined quantities of P, Cu, Ni, Mo, W, Nb, V, B, Ti, Ca, Mg and REM. The surface layer part of the steel at least 0.5mm deep from the surface preferably has a fine grain structure having a bainite phase of 50% or more by area rate and an average grain size of 8μm or less. The method for stably obtaining the steel comprises heating the raw steel to 1,000 to 1,200°C hot-rolling it with a cumulative rolling reduction of 10% or higher in a temperature range of Ar
3 or higher, once cooling it down to 600°C or lower at surface temperature of the steel with a cooling rate of 15°C/second or higher, recuperating the surface temperature of the steel to 750°C or higher, and finish-rolling it at a finishing temperature of 700°C or lower.
COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2012144799A Thick steel plate for marine structure, and method for producing the same 有权
标题翻译：用于海洋结构的厚钢板及其制造方法
公开(公告)号：JP2012144799A
公开(公告)日：2012-08-02
申请号：JP2011006066
申请日：2011-01-14
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： SUZUKI SHUICHI , SAKAIBORI HIDEO , OKUBO TAKESHI , KUBO SATOSHI , KAWABATA TOMOYA , KAMIMURA TAKAYUKI , YUKI HIDEAKI , KAJIMA KAZUYUKI
IPC分类号： C22C38/00 , B21B1/38 , B21B3/00 , C21D8/02 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a thick steel plate for a marine structure which has excellent fracture toughness and excellent corrosion resistance under a high-chloride environment by an inexpensive and simple means.SOLUTION: The thick steel plate for a marine structure includes, by mass, 0.02-0.1% C, 0.03-0.5% Si, 0.5-2.0% Mn, 0.002-0.08% Al, 0.001-0.008% N, 0.003-0.05% Nb, 0.003-0.05% Ti, 0.03-0.50% Sn and the balance Fe with impurities. The microstructure of the steel plate is includes ferrite transformed from non-recrystallized austenite and a second hard phase, in which the ferrite particle size is 2-15 μm, and the aspect ratio of the second hard phase is less than 10. The thick steel plate may further contain one or more elements selected from Ni, Cr, Mo, V and Cu.
摘要翻译：要解决的问题：提供一种用于海洋结构的厚钢板，其通过廉价和简单的方法在高氯化物环境下具有优异的断裂韧性和优异的耐腐蚀性。解决方案：用于海洋结构的厚钢板包括质量为0.02-0.1％C，0.03-0.5％Si，0.5-2.0％Mn，0.002-0.08％Al，0.001-0.008％N，0.003- 0.05％Nb，0.003-0.05％Ti，0.03-0.50％Sn，余量为Fe与杂质。钢板的微细结构包括从未再结晶的奥氏体转变的铁素体和铁素体粒径为2〜15μm的第二硬质相，第二硬质相的纵横比小于10。板可以进一步含有选自Ni，Cr，Mo，V和Cu中的一种或多种元素。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2010248567A Surface-treated steel material excellent in corrosion resistance 审中-公开
标题翻译：表面处理钢材耐腐蚀性优良
公开(公告)号：JP2010248567A
公开(公告)日：2010-11-04
申请号：JP2009098770
申请日：2009-04-15
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KAMIMURA TAKAYUKI , KAJIMA KAZUYUKI , SUGAE KIYONOBU , YUKI HIDEAKI , DOI TAKASHI
IPC分类号： C23C26/00 , C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a surface-treated steel material which is obtained by forming a protective rust layer, that exhibits a protective action against atmospheric corrosion in a high chloride environment and is composed of a dense oxide, on the surface of a steel material in early stages and which has high salt resistance by a combined effect with a base material having high corrosion resistance.
SOLUTION: The steel material has a composition containing, by mass, 0.001-0.15% C, ≤2.5% Si, >0.5% and ≤2.5% Mn, 3+ ion in terms of Al and 1-40 mass% at least one anionic compound (where, compounds of a fluorine ion, a phosphate ion and a hydroxyl ion are excluded), the formation constant K
1 of which with a Fe
3+ ion satisfies inequality: 2.5 1 , on the surface of the original steel material or on the surface rust layer thereof (and which may further contain at least one of Ti, Nb, Mo, W, V, Ca, Mg and REM).
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种表面处理钢材，其通过形成在高氯化物环境中具有防大气腐蚀的保护作用并由致密氧化物构成的保护性锈层而获得，的钢材，并且通过与具有高耐腐蚀性的基材的组合效果具有高耐盐性。钢材具有以质量计含有C：0.001-0.15％C，≤2.5％的Si，> 0.5％和≤2.5％的Mn，<0.03％的P，≤0.005％的S，<0.05％的Cu ，0.05％Ni，0.01-3.0％Cr，0.003-0.1％Al，0.001-0.1％N，0.03-0.50％Sn，余量为Fe，杂质含量≤1Cu / Sn比。表面处理钢材具有以Al换算含有0.1〜5质量％Al 3+离子的有机树脂组合物，其干膜厚度为5-50μm的涂膜， 1-40质量％的至少一种阴离子化合物（其中除去氟离子，磷酸根离子和羟基离子的化合物），其中Fe 的形成常数K 1 3 + 离子在原始钢材表面或其表面锈层上满足不等式：2.5 1 （并且还可以含有Ti， Nb，Mo，W，V，Ca，Mg和REM）。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2010007109A Method for producing steel excellent in corrosion resistance and toughness in z-direction 有权
标题翻译：在Z方向生产耐腐蚀性和韧性优良的钢的方法
公开(公告)号：JP2010007109A
公开(公告)日：2010-01-14
申请号：JP2008165396
申请日：2008-06-25
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KAMIMURA TAKAYUKI , FUJIWARA TOMOYA , KAJIMA KAZUYUKI , YUKI HIDEAKI
IPC分类号： C21D8/02 , B21B3/00 , C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a steel excellent in corrosion resistance and toughness in Z-direction under high chloride atmosphere. SOLUTION: In the method for producing the steel excellent in the corrosion-resistance and surface-film exfoliation, the surface temperature of a slab, which has a composition containing, by mass, 0.001-0.15% C, ≤2.5% Si, >0.5-2.5% Mn, COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种在高氯化物气氛下在Z方向上具有优异的耐腐蚀性和韧性的钢的生产方法。解决方案：在耐腐蚀性和表面膜剥离性优异的钢的制造方法中，具有以质量％计含有0.001〜0.15％C≤2.5％Si的组成的板坯的表面温度，0.5-2.5％Mn，<0.03％P，≤0.005％S，<0.05％Cu，<0.05％Ni，0.01-3.0％Cr，0.003-0.1％Al，0.001-0.1％N，0.03-0.50％ Sn，余量为Fe，Sn，Sn为≤1的Fe加热到1050〜1200℃，轧制压下率≥70％的轧制率在≥900℃的温度范围内进行 ℃，并且在≥800℃的温度区域中的轧制完成，然后进行冷却。在这种情况下，在800℃以上的温度区域中完成轧制后，可以在冷却至≤500℃的温度区后，在≤650℃的温度区域进行退火。此外，钢可以含有Ti，Nb，Mo，Co，W，V，Ca，Zr，Mg，B和REM中的一种或多种。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2006312172A Method for manufacturing metal coated steel pipe 有权
标题翻译：制造金属涂层钢管的方法
公开(公告)号：JP2006312172A
公开(公告)日：2006-11-16
申请号：JP2005134817
申请日：2005-05-06
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： OKAMOTO MASANOBU , YUKI HIDEAKI , KAMIMURA TAKAYUKI , OGAWA KAZUHIRO
IPC分类号： B21C37/06 , B21C37/15 , E02B1/00 , E02D5/60 , E02D31/06
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a metal coated steel pipe, which method can comparatively easily coat and fix a thin coating metallic sheet on a steel pipe.
SOLUTION: The coating metallic sheet 3 having a steel band is preliminarily manufactured by attaching the first steel band 5 having a thickness larger than that of a coating metallic sheet 4 to the end portion of the coating metallic sheet 4. The coating metallic sheet 3 having the steel band is coated on the steel pipe 2 by winding it around the steel pipe 2 in such a manner that the first steel band 5 is arranged in the circumferential direction of the steel pipe 2, and then the end portion of the first steel band 5 is welded on the steel pipe 2. Because the portion to be welded to the steel pipe 2 is the end portion of the steel band 5 and its thickness is larger than that of the coating metallic sheet 4, the burn-through in welding can be prevented, and the coating metallic sheet 4 can be comparatively easily wound and fixed on the steel pipe 2.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于制造金属涂层钢管的方法，该方法可以相对容易地将薄涂金属片涂覆并固定在钢管上。解决方案：通过将具有比涂覆金属片4的厚度大的第一钢带5附接到涂覆金属片4的端部，预先制造具有钢带的涂层金属片3。涂覆金属将钢带2的钢板3以钢管2的周向配置第一钢带5的方式围绕钢管2卷绕在钢管2上，然后将该钢带2的端部第一钢带5被焊接在钢管2上。因为要焊接到钢管2的部分是钢带5的端部并且其厚度大于涂覆金属片4的部分，所以烧穿可以防止焊接，并且可以比较容易地将涂层金属片4卷绕并固定在钢管2上。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2006137967A Welded joint with excellent corrosion resistance 有权
标题翻译：焊接接头具有优良的耐腐蚀性
公开(公告)号：JP2006137967A
公开(公告)日：2006-06-01
申请号：JP2004326405
申请日：2004-11-10
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： YODA NOBORU , YUKI HIDEAKI
IPC分类号： C22C38/00 , B23K35/30 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a welded joint having excellent local corrosion resistance in a weld zone even in the case where welding is applied to steel with excellent fatigue crack propagation characteristics. SOLUTION: The contents of Cu, Ni and Mo in a base material and a weld metal satisfy inequality (ΔCu+ΔNi+ΔMo)≤0.0 and also the contents of Si and Cr satisfy inequality (ΔSi+1.5×ΔCr)≥0.2 or 0.0≥(ΔSi+1.5×ΔCr)≥-0.2 (wherein, ΔCu=CuM-CuW, ΔNi=NiM-NiW, ΔMo=MoM-MoW, ΔSi=SiM-SiW and ΔCr=CrM-CrW are satisfied;CuW, NiW, SiW, CrW and MoW are the contents (mass%) of the respective elements in the weld metal; and CuM, NiM, SiM, CrM and MoM are the contents (mass%) of the respective elements in the base material). COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使在对具有优异的疲劳裂纹扩展特性的钢进行焊接的情况下，也提供在焊接区域具有优异的局部耐腐蚀性的焊接接头。
解决方案：基体材料和焊接金属中的Cu，Ni和Mo的含量满足不等式（ΔCu+ΔNi+ΔMo）≤0.0，Si和Cr的含量满足不等式（ΔSi+ 1.5×ΔCr）≥ 0.2或0.0≥（ΔSi+ 1.5×ΔCr）≥-0.2（其中ΔCu= CuM-CuW，ΔNi= NiM-NiW，ΔMo= MoM-MoW，ΔSi= SiM-SiW和ΔCr= CrM-CrW; CuW ，NiW，SiW，CrW和MoW是焊接金属中各元素的含量（质量％）; CuM，NiM，SiM，CrM和MoM是基材中各元素的含量（质量％））。版权所有（C）2006，JPO＆NCIPI

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