Other

Institut Elektrosvarki Imeni E.o. Patona Akademii Nauk Ukrainskoi Ssr

Valery N Shlepakov

Igor K Pokhodnya

Boris E Paton

Mikhail R Unigovsky

Orest M Serafin

Vladimir F Alter

Veniamin S Rotenfeld

Nikolai T Ovcharenko

Mikhail G Belfor

Petr I Rak

Andrei N Kutovoi

Alexandr G Mazel

Vasily Y Dubovetsky

Mark Z Sheinkin

Vladimir E Paton

Efim Y Leschinsky

Jury A Gavriljuk

Igor P Kaplienko

Leonid N Kopylov

Valentin A Kotov

Jury I Saprykin

Sergei A Suprun

Vladimir I Slepchenko

In a wire coiling machine, wherein wire is continuously formed into coils, comprising a wire bundling assembly mounted on a frame and including a coil forming capstan and an accumulator drum axially mounted under the capstan and surrounded by a rotatable enclosure an improvement which comprises a wire cutting assembly including a percussion cutter unit mounted on the frame for rotation around a vertical axis and an anvil formed as a ring mounted on either the capstan or the accumulator drum and having a surface of revolution for taking an impact load from the cutter unit when the wire is cut at the instant a bundle of wire coils has been deposited. A wire receiving arrangement known to the art is placed below the wire bundling assembly to receive wire coils that have been laid in bundles.

Wire coiling machine

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 flux-cored electrode intended for arc welding of steels in carbon dioxide s characterized in having a casing of a low-carbon steel filled with a powder flux containing (in weight percent):

Flux-cored electrode for welding steels in carbon dioxide

Growing community of inventors

Kyiv, Ukraine

Valery N Shlepakov