专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2008232895A Corrosion testing method of metallic material for ship ballast tank 有权
标题翻译：用于船舶压载舱金属材料的腐蚀测试方法
公开(公告)号：JP2008232895A
公开(公告)日：2008-10-02
申请号：JP2007074362
申请日：2007-03-22
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： NAGASAWA SHIN , USAMI AKIRA , KATO KENJI
IPC分类号： G01N17/00
摘要： PROBLEM TO BE SOLVED: To provide a corrosion testing method of metallic materials for ship ballast tanks and capable of accurately simulating ship ballast tank environments section by section and performing laboratory evaluation in a short time.
SOLUTION: One round voyage is simulated by the two processes of a sea water immersion environment process and a wetting environment process. The immersion environment process has any temperature variation pattern between 0-60°C so as to simulate a sea water immersion environment during one unloaded voyage. The wetting environment process maintains temperature between 0-80°C as desired and has any humidity variation pattern of a relative humidity between 25-100% so as to simulate a wetting environment during one actually loaded voyage. Instead of the immersion environment process, a salt water spraying environment process for maintaining temperature between 0-80°C as desired and having a salt water splaying pattern which changes the time of maintaining a relative humidity of 100% and the time of spraying salt water as desired is used so as to simulate a sea water adhering environment during one unloaded voyage.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为船舶压载舱提供金属材料的腐蚀试验方法，能够逐段准确模拟船舶压载舱环境，并在短时间内进行实验室评估。解决方案：通过海水浸泡环境过程和润湿环境过程的两个过程模拟一次航行。浸没环境过程在0-60°C之间具有任何温度变化模式，以便在一次卸载航行期间模拟海水浸入环境。润湿环境过程根据需要将温度保持在0-80℃之间，并具有相对湿度在25-100％之间的任何湿度变化模式，以便在一次实际加载的航行期间模拟润湿环境。代替浸渍环境工艺，可以根据需要将温度保持在0-80℃之间并具有改变保持100％的相对湿度的时间和喷洒盐水的时间的盐水喷射图案的盐水喷洒环境方法根据需要使用，以便在一次卸载航行期间模拟海水粘附环境。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2007285606A Heat transfer tube for air preheater 审中-公开
标题翻译：空气预热器换热管
公开(公告)号：JP2007285606A
公开(公告)日：2007-11-01
申请号：JP2006113717
申请日：2006-04-17
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： USAMI AKIRA , MIMURA HIROYUKI , OKAMOTO JUNICHI
IPC分类号： F28F19/06
摘要： PROBLEM TO BE SOLVED: To provide a heat transfer tube for an air preheater having high durability to low temperature corrosion generated on the heat transfer tube of the air preheater by a corrosive gas and moisture, and high economical rationality.
SOLUTION: With respect to the plurality of heat transfer tubes for the air preheater disposed between tube plates of an air preheater main body through which an exhaust gas including the corrosive gas passes, and heating the air while making the air pass therethrough, an area of 2-30% length to the total length from an air inlet side is composed of a corrosion-proof stainless steel tube having a value of corrosion-resisting alloy index GI=-[Cr]+3.6×[Ni]+4.7×[Mo]+11.6×[Cu] of 40 or more, or a Ni-base alloy tube, and an area of the remaining length is composed of a corrosion-proof low alloy steel tube in conformity to ASTM A423 Grade 3 Code Case 2494.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于空气预热器的传热管，其具有对由空气预热器的传热管在腐蚀性气体和湿气中产生的低温腐蚀的高耐久性，并且具有高经济的合理性。解决方案：关于布置在包括腐蚀性气体的废气通过的空气预热器主体的管板之间的多个用于空气预热器的传热管，并且在使空气通过的同时加热空气，从空气入口侧到总长度为2-30％的区域由具有耐腐蚀合金指数GI = - [Cr] + 3.6×[Ni] + 4.7的耐腐蚀不锈钢管组成 ×[Mo] + 11.6×[Cu]为40以上，或Ni基合金管，剩余长度的面积由符合ASTM A423 3级代码案例的耐腐蚀低合金钢管组成（C）2008，JPO＆INPIT

3. 发明专利

JP2005179720A Steel sheet for welded structure having excellent corrosion resistance and mechanical property in natural gas-fired boiler exhaust gas atmosphere, and welded joint 审中-公开
标题翻译：焊接结构钢在自然燃气锅炉排气中的耐腐蚀性和机械性能优良的焊接结构和焊接接头
公开(公告)号：JP2005179720A
公开(公告)日：2005-07-07
申请号：JP2003420584
申请日：2003-12-18
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SAKAMOTO TOSHIHARU , ABE MASAYUKI , USAMI AKIRA , NISHIMURA SATORU , TSUZUKI TAKESHI , TANAKA MUTSUTO
IPC分类号： B23K9/00 , B23K101/14 , C22C38/00 , C22C38/34 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To provide a technique for providing satisfactory mechanical properties such as strength and toughness of a welded joint of Cr-containing steel in which the content of C harmfully acting on corrosion resistance and weldability is extremely reduced.
SOLUTION: The steel sheet for a welded structure having excellent corrosion resistance and mechanical properties in a natural gas-fired boiler exhaust gas environment has a composition containing, by mass, ≤0.010% C, 0.05 to 2.0% Si, 0.05 to 0.50% Mn, ≤0.050% P, ≤0.0100% S, 6.0 to 9.0% Cr, ≤0.100% Al, Ti:3×(C+N) to 0.50% and ≤0.020% N, and, if required, further one or more metals selected from Cu, Ni, Mo, Nb and V, and the balance Fe with inevitable impurities, has a metallic structure comprising polygonal ferrite, and has Vickers hardness of 110 to 180. The welded joint is obtained by using the steel sheet.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种技术，其提供令人满意的机械性能，例如耐腐蚀性和焊接性有害的C含量极度降低的含Cr钢的焊接接头的强度和韧性。解决方案：在天然气燃烧锅炉废气环境中具有优异的耐腐蚀性和机械性能的焊接结构钢板具有以质量％≤0.010％C，0.05-2.0％的Si，0.05至 0.50％Mn，≤0.050％P，≤0.0100％S，6.0〜9.0％Cr，≤0.100％Al，Ti：3×（C + N）〜0.50％，≤0.020％N，如果需要，或更多选自Cu，Ni，Mo，Nb和V的金属，余量为Fe的不可避免的杂质，具有包含多边形铁素体的金属结构，维氏硬度为110〜180度。焊接接头通过使用钢板。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004204344A Steel for crude oil tank, its production method, crude oil tank and its corrosion prevention method 有权
公开(公告)号：JP2004204344A
公开(公告)日：2004-07-22
申请号：JP2003138374
申请日：2003-05-16
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： USAMI AKIRA , KATO KENJI , HASEGAWA TOSHINAGA , SHISHIBORI AKIRA
IPC分类号： C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/60 , C23F11/00
CPC分类号： C22C38/02 , C21D8/0205 , C21D8/0257 , C21D9/50 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16
摘要： PROBLEM TO BE SOLVED: To provide steel for a crude oil tank which is excellent in resistances against general and local corrosion concerning crude oil corrosion in the oil tank made of steel and inhibits generation of corrosion products (sludge) containing solid S, a production method for the steel, the crude oil tank and a corrosion prevention method for the crude oil tank. SOLUTION: The steel comprises, by mass, 0.001-0.2% C, 0.01-2.5% Si, 0.1-2% Mn, ≤0.03% P, ≤0.007% S, 0.01-1.5% Cu, 0.001-0.3% Al and 0.001-0.01% N as basic components and further comprises at least one of 0.01-0.2% Mo and 0.01-0.5% W, wherein the total content of solid solution Mo and solid solution W is preferably ≥0.005%. The steel exerts general and local corrosion resistances in crude oil tank environment and inhibits generation of the corrosion products (sludge) containing solid S. COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2004090044A Coated electrode for low alloy steel welding having excellent resistance to sulfuric acid and hydrochloric acid 有权
公开(公告)号：JP2004090044A
公开(公告)日：2004-03-25
申请号：JP2002255444
申请日：2002-08-30
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KOJIMA KAZUHIRO , OKITA SHIGERU , USAMI AKIRA , UMEKI MASAO , TAKAHASHI SUSUMU
IPC分类号： B23K35/30 , B23K35/365
摘要： PROBLEM TO BE SOLVED: To provide a coated electrode which is used for welding a low alloy steel by arc welding, has excellent resistance to sulfuric acid and hydrochloric acid, can yield a weld metal having excellent resistance to sulfuric acid and hydrochloric acid, and can keep satisfactory weldability. SOLUTION: The coated electrode is obtained by coating coating material on a steel core wire and exhibits excellent resistance to sulfuric acid and hydrochloric acid. The coated electrode contains, by mass% of the total mass of electrode, 0.005 to 0.15 % C, 0.5 to 4 % Si, 0.2 to 2.4 % Mn, 0.1 to 1.2 % Cu, 0.1 to 0.6 % Ni, 0.02 to 0.25 % Sb, ≤0.03% P, ≤0.03% S and the balance Fe and inevitable impurities in either one of the steel core wire or the coating flux or both of those. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2004068039A Steel with excellent sulfuric-acid dew-point corrosion resistance, high-temperature oxidation resistance and high-temperature strength 审中-公开
公开(公告)号：JP2004068039A
公开(公告)日：2004-03-04
申请号：JP2002224976
申请日：2002-08-01
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SAKAMOTO TOSHIHARU , NISHIMURA SATORU , USAMI AKIRA
IPC分类号： C22C38/00 , C22C38/16 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a steel product having excellent high-temperature strength and high-temperature oxidation resistance in a high-temperature environment higher than the dew point of sulfuric acid and also having excellent sulfuric acid resistance.
SOLUTION: The steel with excellent sulfuric-acid dew-point corrosion resistance, high-temperature oxidation resistance and high-temperature strength has a composition containing, by mass, 0.0005 to 0.15% C, 0.1 to 3.5% Si, 0.05 to 1.0% Cu, 0.03 to 0.30% Sb, 0.1 to 1.0% Mn, 0.005 to 0.10% Al, 0.01 to 0.30% Ti and 0.0010 to 0.0100% B, properly containing ≤0.05% P, ≤0.05% S and ≤0.015% N, further containing one or more kinds among 0.01 to 1.0% Mo, 0.005 to 0.1% Nb, 0.005 to 0.2% V, ≤1.0% Cr, ≤0.5% Ni and 0.01 to 0.20% Sn and having the balance Fe with accompanying components and/or inevitable impurities. Moreover, the steel has ≥350 MPa tensile strength at 500°C.
COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2007191730A Steel for welded structure with excellent seawater corrosion resistance, and corrosion protection method for ship ballast tank using the same 有权
标题翻译：具有优异的海水耐腐蚀性的焊接结构钢和使用其的船用压载罐的腐蚀保护方法
公开(公告)号：JP2007191730A
公开(公告)日：2007-08-02
申请号：JP2006008247
申请日：2006-01-17
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： USAMI AKIRA , NAGASAWA SHIN , KATO KENJI
IPC分类号： C22C38/00 , B63B11/04 , B63B59/04 , C22C18/00 , C22C21/06 , C22C38/60 , C23F13/00
摘要： PROBLEM TO BE SOLVED: To provide steel for welded structure having excellent seawater corrosion resistance and also to provide a corrosion protection method for a ship ballast tank using the same. SOLUTION: The steel is characterized in that: steel, which has a composition consisting of, by mass, 0.03 to 0.2% C, 0.01 to 2.5% Si, 0.01 to 2.0% Mn, ≤0.03% P, ≤0.03% S, 0.01 to 0.3% Al, one or more elements among Cu, Cr, Ni, Mo, W, Sb, Sn, Se and Pb, and the balance Fe with inevitable impurities, is used as a basis material; and a coating layer of 0.5 to 500μm thickness which is composed mainly of a metal having an immersion potential in seawater baser than that of the basis material is formed on the external surface of a part or the whole of the basis material. Further, in the corrosion protection method, a part or all of structural members inside the ship ballast tank are constituted of the above steel. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供具有优异的耐海水腐蚀性的焊接结构的钢，并且还提供使用其的船舶压载舱的防腐蚀方法。钢的特征在于：具有质量为0.03〜0.2％C，0.01〜2.5％Si，0.01〜2.0％Mn，≤0.03％P，≤0.03％的组成的钢， S，0.01〜0.3％的Al，Cu，Cr，Ni，Mo，W，Sb，Sn，Se和Pb中的一种以上的元素，余量为不可避免的杂质的Fe用作基材; 并且在基材的一部分或全部的外表面上形成厚度为0.5〜500μm的涂层，其主要由在海水基底中具有浸渍电位的金属构成。此外，在防腐蚀方法中，船舶压载舱内的部分或全部结构构件由上述钢构成。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2006265568A High strength steel having excellent environmental-brittleness resistance characteristics due to wet corrosion 审中-公开
标题翻译：具有优异环境耐腐蚀特性的高强度钢，因腐蚀而腐蚀
公开(公告)号：JP2006265568A
公开(公告)日：2006-10-05
申请号：JP2005080820
申请日：2005-03-22
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： USAMI AKIRA , HAYASHI KUNIO , FUJITA NOBUHIRO
IPC分类号： C22C38/00 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To provide steel products exhibiting excellent environmental brittleness characteristics by reducing the amount of the hydrogen infiltrating into the steel products due to wet corrosion without adding a large amount of various alloy elements thereto.
SOLUTION: The high strength steel is composed of a front layer containing ≥0.1mass% one or more components among Cu, Cr and Mo, containing ≥50% ferrite phase, and having a thickness 10 to 300 μm, and an inner layer containing 0.1 to 0.8 mass% C and 0.5 to 5mass% Mn, has the tensile strength of at least 1,470 MPa, and is excellent in the environmental brittleness characteristics due to the wet corrosion.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过减少由于湿腐蚀而侵入到钢制品中的氢的量而不会在其中添加大量各种合金元素来提供具有优异的环境脆性特征的钢产品。解决方案：高强度钢由Cu，Cr和Mo中含有≥0.1质量％的一种或多种组分的前层组成，含有≥50％的铁素体相，厚度为10至300μm，内层含有0.1〜0.8质量％的C和0.5〜5质量％的Mn的层具有至少1470MPa的拉伸强度，并且由于湿腐蚀而具有优异的环境脆性特性。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2006104546A High strength automobile member and hot pressing method 审中-公开
标题翻译：高强度汽车零部件和热压机
公开(公告)号：JP2006104546A
公开(公告)日：2006-04-20
申请号：JP2004295478
申请日：2004-10-08
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： USAMI AKIRA , FUJITA NOBUHIRO , HAYASHI KUNIO , SATOU HIROAKI , AKAMATSU SATOSHI
IPC分类号： C22C38/00 , B21D53/88 , C21D9/46 , C22C38/04
摘要： PROBLEM TO BE SOLVED: To provide an automobile high strength member in which hydrogen embrittlement sensitivity caused by postworking after hot pressing can be secured without being subjected to dehydrogenation treatment in a method for forming the automobile high strength member by hot pressing, and to provide the hot pressing method.
SOLUTION: In the high strength automobile member, the thickness of its surface layer is 1 nm to 300 μm, the dislocation density of the surface layer is ≤1/100 to the dislocation density of the internal layer steel, and the internal layer steel has chemical components comprising, by mass, 0.1 to 0.8% C and 0.5 to 3% Mn, and has a tensile strength of ≥980 N/mm
2 .
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决问题的方案：提供一种汽车高强度部件，其中在通过热压成型汽车高强度部件的方法中，可以确保热压后的加工后产生的氢脆性敏感性而不进行脱氢处理，提供热压法。解决方案：在高强度汽车部件中，其表面层的厚度为1nm至300μm，表层的位错密度对于内层钢的位错密度为≤1/ 100，内部层状钢具有质量分数为0.1〜0.8％，Mn为0.5〜3％的化学成分，拉伸强度≥980N/ mm 2 。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2005021981A Welded joint excellent in corrosion resistance 有权
标题翻译：焊接接头在耐腐蚀性方面优秀
公开(公告)号：JP2005021981A
公开(公告)日：2005-01-27
申请号：JP2003347306
申请日：2003-10-06
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： HASEGAWA TOSHINAGA , MINAGAWA MASANORI , SHIRAHATA HIROYUKI , USAMI AKIRA
IPC分类号： B23K35/30 , B23K9/00 , C22C38/00 , C22C38/16 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a welded joint which shows an excellent corrosion resistance in the entire part of welded joint in both crude oil environment and ballast tank environment, and also can suppress generation of corrosion products (sludge) containing solid sulphur component. SOLUTION: The welded joint is made by welding steel materials which contains C:0.001-0.2%, Si:0.01-2.5%, Mn:0.1-2%, Cu:0.01-1.5%, Al:0.001-0.1%, N:0.001-0.01% as base components in mass%, and additionally one or two components selected from Mo:0.01-0.5% and W:0.01-1%. Furthermore, in the welded joint, a ratio of Cu content in a weld metal at the welded joint part/Cu content in the steel material and that of (Mo content +W content in the weld metal)/(Mo content +W content in the steel material) are 0.15 to 3 respectively, and further Cu content in the weld material minus Cu content in the steel material is -0.3 to 0.5%. Thus, the welded joint suppresses localized corrosion in the joint in both the crude oil and the ballast tank environments and improves corrosion resistance in the entire part of the joint. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供在原油环境和压载舱环境中在焊接接头的整个部分具有优异的耐腐蚀性的焊接接头，并且还可以抑制含有固体硫的腐蚀产物（污泥）的产生零件。焊接接头由焊接钢材制成，钢材含有C：0.001-0.2％，Si：0.01〜2.5％，Mn：0.1〜2％，Cu：0.01〜1.5％，Al：0.001-0.1％，N：0.001-0.01％，以质量％表示的基础成分，另外还有一种或两种选自Mo：0.01-0.5％和W：0.01-1％的组分。此外，在焊接接头中，焊接接头部的焊接金属中的Cu含量/钢材中的Cu含量与（Mo含量+焊接金属中的W含量）/（Mo含量+ W含量钢材料）分别为0.15〜3，钢材中的Cu含量中的Cu含量减去-0.3〜0.5％。因此，焊接接头抑制原油和压载舱环境中的接头局部腐蚀，提高了接头整体的耐腐蚀性。版权所有（C）2005，JPO＆NCIPI

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式