发明授权
- 专利标题： Method for welding girth joints in pipe lines
- 专利标题（中）： 在管道中焊接环形接头的方法
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申请号： US7193申请日： 1979-01-29
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公开(公告)号： US4336436A公开(公告)日： 1982-06-22
- 发明人: Vasily Y. Dubovetsky , Leonid N. Kopylov , Valentin A. Kotov , Jury I. Saprykin , Vladimir I. Slepchenko , Boris E. Paton , Igor K. Pokhodnya , Vladimir E. Paton , Mikhail G. Belfor , Efim Y. Leschinsky , Andrei N. Kutovoi , Mikhail R. Unigovsky , Veniamin S. Rotenfeld , Valery N. Shlepakov , Jury A. Gavriljuk , Alexandr G. Mazel , Mark Z. Sheinkin , Orest M. Serafin
- 申请人： Vasily Y. Dubovetsky , Leonid N. Kopylov , Valentin A. Kotov , Jury I. Saprykin , Vladimir I. Slepchenko , Boris E. Paton , Igor K. Pokhodnya , Vladimir E. Paton , Mikhail G. Belfor , Efim Y. Leschinsky , Andrei N. Kutovoi , Mikhail R. Unigovsky , Veniamin S. Rotenfeld , Valery N. Shlepakov , Jury A. Gavriljuk , Alexandr G. Mazel , Mark Z. Sheinkin , Orest M. Serafin
- 专利权人： Dubovetsky Vasily Y,Kopylov Leonid N,Kotov Valentin A,Saprykin Jury I,Slepchenko Vladimir I,Paton Boris E,Pokhodnya Igor K,Paton Vladimir E,Belfor Mikhail G,Leschinsky Efim Y,Kutovoi Andrei N,Unigovsky Mikhail R,Rotenfeld Veniamin S,Shlepakov Valery N,Gavriljuk Jury A,Mazel Alexandr G
- 当前专利权人： Dubovetsky Vasily Y,Kopylov Leonid N,Kotov Valentin A,Saprykin Jury I,Slepchenko Vladimir I,Paton Boris E,Pokhodnya Igor K,Paton Vladimir E,Belfor Mikhail G,Leschinsky Efim Y,Kutovoi Andrei N,Unigovsky Mikhail R,Rotenfeld Veniamin S,Shlepakov Valery N,Gavriljuk Jury A,Mazel Alexandr G
- 主分类号： B23K9/028
- IPC分类号： B23K9/028 ; B23K31/06 ; B23K9/12
摘要：
A method and apparatus for welding girth joints in pipelines using two welding heads comprises the steps of moving each of the welding heads upwards around the pipeline along the respective section of the girth joint, feeding a welding wire to each of the welding heads so that the welding wire is fed substantially tangentially with respect to the surface of the pipe, and forming a circumferential weld by moulding it to hold the molten metal of the welding bath in the welding zone. An apparatus for carrying out the method for welding girth joints in pipelines comprises an annular track structure having at least two carriages mounted thereon which are connected with drives adapted to impart a translatory motion to the carriages. Each of the carriages carries a welding head provided with a welding wire feeder and a weld moulding member arranged opposite to the joint being welded. The welding wire feeder includes a guiding nozzle extending under the weld moulding member, with its axis being oriented tangentially to the surface of the pipe to feed the welding wire into the welding zone through the groove of the joint.
公开/授权文献
- US5900490A Preparation of perylene-3, 4-Dicarboxylic acid anhydrides 公开/授权日：1999-05-04