E.o. Paton Electric Welding Institute of the National Academy of Sciences of Ukraine

Vadim Yurjevich Ignatenko

Sergei I Kuchuk-Yatsenko

Boris A Galyan

Andrey N Levchuk

Sergey I Kuchuk-Yatsenko

Vladimir S Kachinsky

Nikolay I Koval

Alexander P Miroshnichenko

Vladimir Stanislavovich Kachinskii

Mikhail Pavlovich Koval

A machine for butt welding of pipes can be used in different branches of industry and construction when welding of tubular parts having different configurations and purposes. The machine increases the accuracy of pipe alignment during clamping and reduces frictional losses by using a special mechanism for aligning and clamping the pipes being welded. The improvement makes it possible to improve the quality of welded joints, labor productivity and reliability of machine operation.

Machine for butt welding of pipes

A press welding process which can be used in such industries as car-making, production of hot-water boilers, industrial and civil construction, in construction of pipelines using small and medium diameter pipes, for welding parts with a solid and developed cross-section, as well as for joining parts to form a T-joint. A magnetically impelled arc butt welding is achieved, that, during heating, the controlled continuous displacement of the parts being welded is performed where the gap between the parts edges is kept constant. The value of the welding arc voltage is used as the parameter for the gap size adjustment, and the moment of achievement of the required temperature on the edges of parts being welded, is determined by the length of the relative displacement of the parts, and when the assigned values of displacement have been reached, the speed of the arc movement along the edges of the parts being welded, is programmed. An improved quality of the welded joints produced by magnetically impelled arc butt welding is obtained.

Method of magnetically impelled arc butt welding

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Kyiv, Ukraine

Vadim Yurjevich Ignatenko