发明专利
JP2003071589A Manufacturing method for high strength steel pipe joint for oil well
有权
用于油井的高强度钢管接头的制造方法
- 专利标题： Manufacturing method for high strength steel pipe joint for oil well
- 专利标题（中）： 用于油井的高强度钢管接头的制造方法
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申请号： JP2001260895申请日： 2001-08-30
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公开(公告)号： JP2003071589A公开(公告)日： 2003-03-11
- 发明人: KIMURA MITSUO , MIYATA YUKIO , TOYOOKA TAKAAKI , ISHII HIDEAKI , YASUDA KOICHI
- 申请人： Kawasaki Steel Corp , 川崎製鉄株式会社
- 专利权人： Kawasaki Steel Corp,川崎製鉄株式会社
- 当前专利权人： Kawasaki Steel Corp,川崎製鉄株式会社
- 优先权： JP2001260895 2001-08-30
- 主分类号： B23K9/167
- IPC分类号： B23K9/167 ; B23K9/028 ; B23K9/173 ; B23K9/23 ; B23K35/30 ; B23K101/06 ; C22C38/00 ; C22C38/58
摘要：
PROBLEM TO BE SOLVED: To provide a manufacturing method for a high strength oil well pipe by welding joining.
SOLUTION: In conducting peripheral welding for end parts of high strength steel pipes having a base material structure containing C:0.03% or less, Si:0.70% or less, Mn:0.30-2.00%, Cr:10.5-15.0%, Ni:7.0% or less, N:0.03% or less, O:0.01% or less, and containing one or two kinds out of Nb:0.20% or less, V:0.20% or less, using a welding material containing C+N:0.3% or less, Si:1.0% or less, Mn:2.5% or less, Cr:10.5-24.0%, Ni:8.0% or less, or further one or two kinds out of Mo, Cu, and/or one or two kinds or more selected from Nb, Ti, Zr, B, W, and/or Ca, REM, the welding joining is conducted using a GTAW method of GMAW method. In welding using the GMAW method in a 100% inert gas, the welding material is preferably made to contain REM as the essential containment.
COPYRIGHT: (C)2003,JPO
SOLUTION: In conducting peripheral welding for end parts of high strength steel pipes having a base material structure containing C:0.03% or less, Si:0.70% or less, Mn:0.30-2.00%, Cr:10.5-15.0%, Ni:7.0% or less, N:0.03% or less, O:0.01% or less, and containing one or two kinds out of Nb:0.20% or less, V:0.20% or less, using a welding material containing C+N:0.3% or less, Si:1.0% or less, Mn:2.5% or less, Cr:10.5-24.0%, Ni:8.0% or less, or further one or two kinds out of Mo, Cu, and/or one or two kinds or more selected from Nb, Ti, Zr, B, W, and/or Ca, REM, the welding joining is conducted using a GTAW method of GMAW method. In welding using the GMAW method in a 100% inert gas, the welding material is preferably made to contain REM as the essential containment.
COPYRIGHT: (C)2003,JPO
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