专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US07238434B2 Welded structure having improved resistance to stress corrosion cracking 有权
标题翻译：具有改善的耐应力腐蚀开裂性的焊接结构
公开(公告)号：US07238434B2
公开(公告)日：2007-07-03
申请号：US11366442
申请日：2006-03-03
申请人： Hisashi Amaya , Kazuhiro Ogawa , Kunio Kondo , Masayuki Sagara , Hiroyuki Hirata
发明人： Hisashi Amaya , Kazuhiro Ogawa , Kunio Kondo , Masayuki Sagara , Hiroyuki Hirata
IPC分类号： B32B15/04 , B32B15/18 , C21D9/08 , F16L9/22
CPC分类号： B23K9/0286 , B23K9/16 , B23K9/23 , B23K35/3086 , B23K2101/10 , B23K2103/05 , C21D9/50 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/40 , C22C38/42 , C22C38/44 , Y10T428/12611 , Y10T428/12979 , Y10T428/13
摘要： This invention relates to a welded line pipe structure for transporting corrosive petroleum or natural gas. It is constituted by martensitic stainless steel pipes containing 8–16% Cr and at most 0.05% C. By suitably controlling the welding conditions at the time of girth welding of the steel pipes so as to ensure that the Cr concentration in grain boundary Cr-depleted portions existing immediately beneath a weld oxide scale is at least 5%, the occurrence of SCC in a high temperature CO2 environment can be prevented.
摘要翻译：本发明涉及一种输送腐蚀性石油或天然气的焊接管道结构。由含有8-16％Cr和最多0.05％C的马氏体不锈钢管构成。通过适当控制钢管的环形焊接时的焊接条件，以确保Cr界限Cr浓度Cr- 焊接氧化皮刻度正下方存在的贫化部分为至少5％，可以防止在高温CO 2环境中出现SCC。

22. 发明申请

US20050034790A1 Martensitic stainless steel 有权
标题翻译：马氏体不锈钢
公开(公告)号：US20050034790A1
公开(公告)日：2005-02-17
申请号：US10798855
申请日：2004-03-12
申请人： Hisashi Amaya , Kunio Kondo , Masakatsu Ueda , Keiichi Nakamura , Takahiro Kushida , Kazuyo Kushida
发明人： Hisashi Amaya , Kunio Kondo , Masakatsu Ueda , Keiichi Nakamura , Takahiro Kushida , Kazuyo Kushida
IPC分类号： C22C38/00 , C22C38/04 , C22C38/42 , C22C38/44 , C22C38/54 , C22C38/22
CPC分类号： C22C38/44 , C22C38/001 , C22C38/002 , C22C38/04 , C22C38/42
摘要： A martensitic stainless steel comprising C: 0.01-0.10%, Si: 0.05-1.0%, Mn: 0.05-1.5%, P: not more than 0.03%, S: not more than 0.01%, Cr: 9-15%, Ni: 0.1-4.5%, Al: not more than 0.05% and N: not more than 0.1% in mass %, and further comprising at least one of Cu: 0.05-5% and Mo: 0.05-5%, the residual being Fe and impurities, is provided, wherein the contents of Cu and Mo satisfy the following formula (a) or (b), 0.2%≦Mo+Cu/4≦5% (a) 0.55%≦Mo+Cu/4≦5% (b) and wherein the hardness is 30-45 in HRC and the carbide amount in grain boundaries of the prior austenite is not more than 0.5 volume %. The marensitic stainless steel has excellent properties regarding the sulfide stress cracking resistance, the resistance to corrosive wear and the localized corrosion.
摘要翻译：一种马氏体不锈钢，其包含C：0.01〜0.10％，Si：0.05〜1.0％，Mn：0.05〜1.5％，P：0.03％以下，S：0.01％以下，Cr：9〜15％，Ni ：0.1-4.5％，Al：0.05％以下，N：0.1质量％以下，进一步含有Cu：0.05〜5％和Mo：0.05〜5％中的至少一种，残留物为Fe 和杂质，其中Cu和Mo的含量满足下式（a）或（b），0.2％<= Mo + Cu / 4 <= 5％（a）0.55％<= Mo + Cu / 4 <= 5％（b），其中HRC中的硬度为30-45，并且原奥氏体的晶界中的碳化物量不大于0.5体积％。锰矿不锈钢具有耐硫化物应力开裂性，耐腐蚀性和局部腐蚀性等优异性能。

23. 发明申请

US20090098008A1 Martensitic Stainless Steel Oil Country Tubular Good 有权
标题翻译：马氏体不锈钢国家管状良好
公开(公告)号：US20090098008A1
公开(公告)日：2009-04-16
申请号：US11792524
申请日：2004-12-07
申请人： Hisashi Amaya , Kunio Kondo , Masakatsu Ueda
发明人： Hisashi Amaya , Kunio Kondo , Masakatsu Ueda
IPC分类号： C22C38/20 , C22C38/18 , C22C38/22
CPC分类号： C22C38/00 , C21D8/10 , C21D8/105 , C21D9/08 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/18 , C22C38/20 , C22C38/22 , C22C38/38 , C22C38/58
摘要： A martensitic stainless steel oil country tubular good contains, by mass, 0.005% to 0.1% C, 0.05% to 1% Si, 1.5% to 5% Mn, at most 0.05% P, at most 0.01% S, 9% to 13% Cr, at most 0.5% Ni, at most 2% Mo, at most 2% Cu, 0.001% to 0.1% Al, and 0.001% to 0.1% N, with the balance being Fe and impurities, and the pipe has a Cr-depleted region under the surface. The martensitic stainless steel oil country tubular good according to the present invention does not have a passive film on the surface and corrodes wholly at low speed. In addition, the Ni content is reduced, which allows uneven corrosion to be prevented. Therefore, SCC can be prevented from being generated in spite of the presence of a Cr-depleted region.
摘要翻译：马氏体不锈钢油管状良好的质量含有0.005〜0.1％的C，0.05〜1％的Si，1.5〜5％的Mn，至多0.05％的P，最多0.01％的S，9〜13 ％Cr，最多0.5％Ni，至多2％Mo，最多2％Cu，0.001％至0.1％Al和0.001％至0.1％N，余量为Fe和杂质，管道为Cr - 表面下方的剥离区域。根据本发明的马氏体不锈钢油管状管状体在表面上不具有钝化膜并且完全以低速腐蚀。另外，Ni含量降低，能够防止不均匀的腐蚀。因此，尽管存在Cr-贫化区域，也可以防止产生SCC。

24. 发明授权

US07458426B2 Steel pipe for embedding-expanding, and method of embedding-expanding oil well steel pipe 有权
标题翻译：埋管扩管用钢管，埋管扩孔油井钢管方法
公开(公告)号：US07458426B2
公开(公告)日：2008-12-02
申请号：US11790874
申请日：2007-04-27
申请人： Yuji Arai , Kunio Kondo , Hisashi Amaya , Akihito Yamane
发明人： Yuji Arai , Kunio Kondo , Hisashi Amaya , Akihito Yamane
IPC分类号： E21B43/10 , E21B29/00 , C22C38/00
CPC分类号： C22C38/02 , B21C1/24 , C21D9/085 , C22C38/04 , C22C38/12 , C22C38/22 , E21B43/103
摘要： (1) A steel pipe that is expanded radially in a state wherein it was inserted in a well such as an oil well, characterized in that the non-uniform wall thickness ratio E0 (%) before expanding satisfies the following expression {circle around (1)}. E0≦30/(1+0.018α) {circle around (1)} Wherein α is the pipe expansion ratio (%) calculated by the following expression {circle around (2)}. α=[(inner diameter of the pipe after expanding−inner diameter of the pipe before expanding)/inner diameter of the pipe before expanding]×100 {circle around (2)} (2) A steel pipe that should be expanded radially in a state wherein it is inserted in a well, such as an oil well, characterized in that the eccentric non-uniform wall thickness ratio is 10% or less.When the embedding-expanding method is performed with use of the steel pipe of (1) or (2), lowering of collapse strength of the expanded steel pipe is prevented and bending thereof can be decreased.
摘要翻译：（1）一种钢管，其在将其插入诸如油井的井中的状态下径向膨胀，其特征在于，膨胀前的不均匀壁厚比E0（％）满足以下表达式{ E0 <= 30 /（1 + 0.018alpha）{圈内（1 <？in-line-formula description =“in-line-formula description =” 其中，α是通过以下表达式计算的管道膨胀率（％）{circle around（2. <？in-line-formula description =“In-line Formulas”end = α= [（膨胀后的管内径 - 膨胀前的管的内径）/扩管前的内径]×100 {圆周（2 <？在线配方说明=“ 在线公式“end =”tail“？>（2）在其插入诸如油井的井中的状态下应该径向膨胀的钢管，其特征在于，所述偏心不均匀壁厚比例为10％以下。当使用（1）或（2）的钢管进行埋入膨胀方法时，防止扩大钢管的塌陷强度的降低，并且可以降低其弯曲。

25. 发明申请

US20070199720A1 Steel pipe for embedding-expanding, and method of embedding-expanding oil well steel pipe 有权
标题翻译：埋管扩管用钢管，埋管扩孔油井钢管方法
公开(公告)号：US20070199720A1
公开(公告)日：2007-08-30
申请号：US11790874
申请日：2007-04-27
申请人： Yuji Arai , Kunio Kondo , Hisashi Amaya , Akihito Yamane
发明人： Yuji Arai , Kunio Kondo , Hisashi Amaya , Akihito Yamane
IPC分类号： E21B19/16
CPC分类号： C22C38/02 , B21C1/24 , C21D9/085 , C22C38/04 , C22C38/12 , C22C38/22 , E21B43/103
摘要： (1) A steel pipe that is expanded radially in a state wherein it was inserted in a well such as an oil well, characterized in that the non-uniform wall thickness ratio E0 (%) before expanding satisfies the following expression {circle around (1)}. E0≦30 /(1+0.018α) {circle around (1)}Wherein α is the pipe expansion ratio (%) calculated by the following expression {circle around (2)}. α=[(inner diameter of the pipe after expanding−inner diameter of the pipe before expanding)/inner diameter of the pipe before expanding]×100 {circle around (2)}(2) A steel pipe that should be expanded radially in a state wherein it is inserted in a well, such as an oil well, characterized in that the eccentric non-uniform wall thickness ratio is 10% or less. When the embedding-expanding method is performed with use of the steel pipe of (1) or (2), lowering of collapse strength of the expanded steel pipe is prevented and bending thereof can be decreased.
摘要翻译：（1）一种钢管，其在将其插入诸如油井的井中的状态下径向膨胀，其特征在于，膨胀前的不均匀壁厚比E0（％）满足以下表达式{ <？in-line-formula description =“In-line Formulas”end =“lead”？> E0 <= 30 /(1+0.018alpha）{circle around（1 <？in-line-formula description =“ 其中，α是通过以下表达式计算的管道膨胀率（％）{circle around（2. <？in-line-formula description =“In-line Formulas”end = α= [（膨胀后的管内径 - 膨胀前的管的内径）/扩管前的内径]×100 {圆周（2 <？在线配方说明=“ 在线公式“end =”tail“？>（2）在其插入诸如油井的井中的状态下应该径向膨胀的钢管，其特征在于，所述偏心不均匀壁厚比例为10％ s。当使用（1）或（2）的钢管进行埋入膨胀方法时，防止扩大钢管的塌陷强度的降低，并且可以降低其弯曲。

26. 发明授权

US07225868B2 Steel pipe for embedding-expanding, and method of embedding-expanding oil well steel pipe 有权
标题翻译：埋管扩管用钢管，埋管扩孔油井钢管方法
公开(公告)号：US07225868B2
公开(公告)日：2007-06-05
申请号：US10651941
申请日：2003-09-02
申请人： Yuji Arai , Kunio Kondo , Hisashi Amaya , Akihito Yamane
发明人： Yuji Arai , Kunio Kondo , Hisashi Amaya , Akihito Yamane
IPC分类号： E21B43/10 , E21B29/00 , C22C38/00
CPC分类号： C22C38/02 , B21C1/24 , C21D9/085 , C22C38/04 , C22C38/12 , C22C38/22 , E21B43/103
摘要： (1) A steel pipe that is expanded radially in a state wherein it was inserted in a well such as an oil well, characterized in that the non-uniform wall thickness ratio E0 (%) before expanding satisfies the following expression {circle around (1)}. E0≦30/(1+0.018α){circle around (1)} Wherein α is the pipe expansion ratio (%) calculated by the following expression {circle around (2)}. α=[(inner diameter of the pipe after expanding−inner diameter of the pipe before expanding)/inner diameter of the pipe before expanding]×100{circle around (2)} (2) A steel pipe that should be expanded radially in a state wherein it is inserted in a well, such as an oil well, characterized in that the eccentric non-uniform wall thickness ratio is 10% or less.When the embedding-expanding method is performed with use of the steel pipe of (1) or (2), lowering of collapse strength of the expanded steel pipe is prevented and bending thereof can be decreased.
摘要翻译：（1）一种钢管，其在将其插入诸如油井的井中的状态下径向膨胀，其特征在于，膨胀前的不均匀壁厚比E0（％）满足以下表达式{ E0 <= 30 /（1 + 0.018alpha）{圈内（1 <？in-line-formula description =“in-line-formula description =” 其中，α是通过以下表达式计算的管道膨胀率（％）{circle around（2. <？in-line-formula description =“In-line Formulas”end = α= [（膨胀后的管内径 - 膨胀前的管的内径）/扩管前的内径]×100 {圆周（2 <？在线配方说明=“ 在线公式“end =”tail“？>（2）在其插入诸如油井的井中的状态下应该径向膨胀的钢管，其特征在于，所述偏心不均匀壁厚比例为10％以下。当使用（1）或（2）的钢管进行埋入膨胀方法时，防止扩大钢管的塌陷强度的降低，并且可以降低其弯曲。

27. 发明申请

US20130312880A1 DUPLEX STAINLESS STEEL AND PRODUCTION METHOD THEREFOR 有权
标题翻译：双相不锈钢及其生产方法
公开(公告)号：US20130312880A1
公开(公告)日：2013-11-28
申请号：US13984314
申请日：2012-02-10
申请人： Daisuke Motoya , Masahiko Hamada , Hisashi Amaya , Hiroyuki Nagayama , Kenta Yamada
发明人： Daisuke Motoya , Masahiko Hamada , Hisashi Amaya , Hiroyuki Nagayama , Kenta Yamada
IPC分类号： C22C38/58 , C22C38/54 , C22C38/46 , C22C38/00 , C22C38/42 , C22C38/04 , C22C38/02 , C21D6/00 , C22C38/44
CPC分类号： C21D6/005 , C21D6/004 , C21D6/008 , C21D2211/005 , C22C1/02 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/54 , C22C38/58
摘要： Provided is a duplex stainless steel having a high strength and a high toughness. A stainless steel according to the present invention includes: a chemical composition containing, in mass percent, C: at most 0.030%, Si: 0.20 to 1.00%, Mn: at most 8.00%, P: at most 0.040%, S: at most 0.0100%, Cu: more than 2.00% and at most 4.00%, Ni: 4.00 to 8.00%, Cr: 20.0 to 30.0%, Mo: at least 0.50% and less than 2.00%, N: 0.100 to 0.350%, and sol. Al: at most 0.040%, the balance being Fe and impurities; and a structure, wherein a rate of ferrite in the structure is 30 to 70%, and a hardness of the ferrite in the structure is at least 300 Hv10gf.
摘要翻译：提供具有高强度和高韧性的双相不锈钢。根据本发明的不锈钢包括：以质量％计含有C：至多0.030％Si：0.20至1.00％，Mn：至多8.00％，P：至多0.040％，S：at 最大0.0100％，Cu：大于2.00％，至多4.00％，Ni：4.00〜8.00％，Cr：20.0〜30.0％，Mo：0.50％以上且2.00％以下，N：0.100〜0.350％溶胶 Al：0.040％以下，余量为Fe和杂质; 以及结构中的铁素体的比率为30〜70％，结构中的铁素体的硬度为300Hv×10gf以上的结构。

28. 发明申请

US20130315776A1 DUPLEX STAINLESS STEEL 审中-公开
标题翻译：双相不锈钢
公开(公告)号：US20130315776A1
公开(公告)日：2013-11-28
申请号：US13984327
申请日：2012-02-10
申请人： Kenta Yamada , Hiroyuki Nagayama , Masahiko Hamada , Daisuke Motoya , Hisashi Amaya
发明人： Kenta Yamada , Hiroyuki Nagayama , Masahiko Hamada , Daisuke Motoya , Hisashi Amaya
IPC分类号： C22C38/58 , C22C38/46 , C22C38/00 , C22C38/42 , C22C38/04 , C22C38/02 , C22C38/54 , C22C38/44
CPC分类号： C22C38/005 , C21D6/004 , C21D6/005 , C21D7/13 , C21D8/0226 , C21D2211/001 , C21D2211/004 , C21D2211/005 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/54 , C22C38/58
摘要： A duplex stainless steel, which can suppress precipitation of a σ phase under high heat input welding, is excellent in SCC resistance under high-temperature chloride environments and has a high strength. The duplex stainless steel includes a chemical composition containing, in mass percent, C: at most 0.030%, Si: 0.20 to 1.00%, Mn: at most 8.00%, P: at most 0.040%, S: at most 0.0100%, Cu: more than 2.00% and at most 4.00%, Ni: 4.00 to 8.00%, Cr: 20.0 to 28.0%, Mo: 0.50 to 2.00%, N: 0.100 to 0.350%, and sol. Al: at most 0.040%, the balance being Fe and impurities, and satisfying Expression (1) and Expression (2); a structure having a ferrite rate of at least 50%; and a yield strength of at least 550 MPa or more: 2.2Cr+7Mo+3Cu>66 (1) Cr+11Mo+10Ni
摘要翻译：可以抑制高热输入焊接下的σ相析出的双相不锈钢在高温氯化物环境下的SCC电阻优异，强度高。双相不锈钢包括以质量％计含有C：0.030％以下，Si：0.20〜1.00％，Mn：8.00％以下，P：0.040％以下，S：0.0100％以下的化学组成：2.00％以上4.00％以下，Ni：4.00〜8.00％，Cr：20.0〜28.0％，Mo：0.50〜2.00％，N：0.100〜0.350％。 Al：0.040％以下，余量为Fe和杂质，满足式（1）和式（2）。铁素体率至少为50％的结构; 屈服强度为至少550MPa以上：2.2Cr + 7Mo + 3Cu> 66（1）Cr + 11Mo + 10Ni <12（Cu + 30N）（2）

29. 发明申请

US20100170320A1 METHOD FOR MANUFACTURING A HIGH ALLOY PIPE 有权
标题翻译：制造高合金管的方法
公开(公告)号：US20100170320A1
公开(公告)日：2010-07-08
申请号：US12650585
申请日：2009-12-31
申请人： Masayuki Sagara , Hitoshi Suwabe , Hisashi Amaya , Shigemitsu Kimura , Masaaki Igarashi
发明人： Masayuki Sagara , Hitoshi Suwabe , Hisashi Amaya , Shigemitsu Kimura , Masaaki Igarashi
IPC分类号： B21C37/06
CPC分类号： C22C38/02 , C21D6/004 , C21D8/10 , C21D8/105 , C21D9/14 , C22C38/04 , C22C38/42 , C22C38/44
摘要： A method for manufacturing a high alloy pipe comprises hot working, a high alloy material pipe having controlled amounts of C, Si, Mn, P, S, Ni, Cr, Mo, Cu, Al, N, O, and optionally Ca, Mg, and rare earth elements, with the balance Fe. The pipe composition satisfies the formula N×O≦0.001. The pipe is subjected to cold working to form the high alloy pipe, wherein the final cold working process is performed under the condition that a working ratio Rd in the reduction of area satisfies 15≦Rd(%)≦370×(C+N), where N, O and C are the contents (by mass percent) of the respective elements, and Rd is the working ratio (%) in the reduction of area. The pipe has an excellent ductility and an excellent corrosion resistance when cold working is performed to obtain a high strength after pipe-making.
摘要翻译：一种制造高合金管的方法包括热加工，具有受控量的C，Si，Mn，P，S，Ni，Cr，Mo，Cu，Al，N，O以及任选的Ca，Mg的高合金材料管，稀土元素，余量为Fe。管道组成满足公式N×O＆nlE; 0.001。管道进行冷加工以形成高合金管，其中在减少面积的加工率Rd满足15＆lt; nlE的条件下进行最终冷加工工艺; Rd（％）＆nlE; 370×（C + N ），其中N，O和C是各元素的含量（按质量百分比），Rd是面积减少的加工率（％）。在进行冷加工以获得制管后的高强度时，该管具有优良的延展性和优异的耐腐蚀性。

30. 发明授权

US07082992B2 Oil well steel pipe for embedding-expanding 有权
标题翻译：油井钢管嵌埋扩展
公开(公告)号：US07082992B2
公开(公告)日：2006-08-01
申请号：US11284918
申请日：2005-11-23
申请人： Hisashi Amaya , Yuji Arai
发明人： Hisashi Amaya , Yuji Arai
IPC分类号： E21B7/28 , C22C38/02
CPC分类号： C22C38/02 , C22C38/04 , Y10T428/12
摘要： An oil well steel pipe for embedding-expanding excellent in the SSC resistance after expanding. The pipe is made of a steel consisting of, by mass %, C: 0.05 to 0.45%, Si: 0.1 to 1.5%, Mn: 0.1 to 3.0%, P: 0.03% or less, S: 0.01% or less, sol.Al: 0.05% or less, and the balance being Fe and impurities, with a soluble N content of 40 ppm or less. The steel can comprise one or more selected from V, Ti, Nb, B, Cr, Mo, Ni, Cu and Ca.
摘要翻译：一种油井钢管，用于扩展后的耐SSC性的嵌入扩展性优异。该管由质量％C：0.05〜0.45％，Si：0.1〜1.5％，Mn：0.1〜3.0％，P：0.03％以下，S：0.01％以下的钢构成， Al：0.05％以下，余量为Fe和杂质，可溶性N含量为40ppm以下。钢可以包含选自V，Ti，Nb，B，Cr，Mo，Ni，Cu和Ca中的一种或多种。

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