APPARATUS FOR PIPE LATTICES PIPE EXPANSION Russian patent published in 1996 - IPC

FIELD: pipe lattices pipe coupling. SUBSTANCE: apparatus for pipe lattices pipe expansion has source of pulse currents and connected with it by cable electrical explosive cartridges inserted in pipes to be expanded. Apparatus differs from others by the fact, that to increase productivity and quality of pipes coupling it is provided with two rigidly connected to each other plates, one of which is fixed on cable and current conducting members are mounted on its contacting surface and another one, that is correspondingly last one, has through holes, in which cartridges are rigidly fixed. EFFECT: increased productivity and pipes coupling.