Other

Institut Elektrosvarki, Imeni E.o. Patona

Orest M Serafin

Boris E Paton

Sergei I Kuchuk-Yatsenko

Mikhail R Unigovsky

Vladimir K Lebedev

Vasily A Sakharnov

Sergei A Solodovnikov

Boris E Scherbina

Oleg M Ivantsov

Igor K Pokhodnya

Boris A Galyan

Boris A Galian

Valery N Shlepakov

Evgeny V Rulevsky

Veniamin S Rotenfeld

Tamara A Chertilina

Jury I Saprykin

Alexandr M Starostin

Vladimir I Slepchenko

Vladimir E Paton

Mikhail G Belfor

Efim Y Leschinsky

Andrei N Kutovoi

Jury A Gavriljuk

Alexandr G Mazel

Mark Z Sheinkin

Valentin I Krivorotenko

Vladislav I Ponomar

Valentin A Kotov

Alexei M Malakhov

Jury G Shvets

Vasily Y Dubovetsky

Anatoly D Gluschenko

Filipp I Peretrukhin

Leonid N Kopylov

Nikolai I Postolaty

A mobile arrangement for laying a continuous pipeline comprises a resistance welding apparatus, an outer flash trimmer, and at least one pipe-laying means. A jib of the pipe-laying means has a longitudinal support structure suspended therefrom. A suspension is attached to this longitudinal support structure. The front end of said longitudinal support structure carries an outer flash trimmer, and the rear end of said longitudinal support structure carries an inductor for thermal treatment of the weld.

Mobile arrangement for laying a continuous pipeline

Resistance welding apparatus for joining pipes end to end

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.

Method for welding girth joints in pipe lines

A welder arranged inside pipes to be welded comprises a housing with the longitudinal axis thereof matched with the axis of the pipes. On the housing are a welding transformer and two mechanisms clamping the pipes, each having a drive moving the mechanism along the axis of the housing, and each being electrically connected to the transformer. The housing has mounted thereon a pipe flashing and upsetting mechanism with its own hydraulic drive, kinematically coupled to one of the pipe clamping mechanisms, a hydraulic pump supplying fluid to the drives, and a mechanism driving the welder along the pipes' axis. The housing carries two bearing discs secured at opposite ends and three clips mounted on roller supports and movable along the housing's axis. Two clips are incorporated in the first and second clamping mechanisms, respectively, and the third is part of the flashing and upsetting mechanism. The clip incorporated in the first pipe clamping mechanism is interposed between the bearing disc and the clip of the second clamping mechanism and is coupled to the bearing disc by means of its hydraulic drive. Another kinematic coupling is between this clip and the bearing disc. The clip of the flashing and upsetting mechanism is close to the second bearing disc and coupled thereto by its own hydraulic drive. The clip of the second clamping mechanism is interposed between the clip of the first clamping mechanism and that of the flashing and upsetting mechanism and is coupled to the clip of the flashing and upsetting mechanism by its hydraulic drive; and an additional kinematic coupling is between the clip of the second clamping mechanism and said clip of the flashing and upsetting mechanism.

Internal resistance pipe butt welder

Growing community of inventors

Dolgoprudny, undefined

Orest M Serafin