ELECTRO-HYDROIMPULSIVE INSERTION METHOD OF PIPES IN OUT-OF-WAY PLACES Russian patent published in 2010 - IPC B21D26/10 B21D39/04 

FIELD: metallurgy.

SUBSTANCE: invention relates to field of materials pressure processing with usage of electric explosion energy of metallic conductor in liquid transmission medium and relates particularly, deformation and insertion of pipes of wide range of configurations and geometry in out-of-the-way place. Pipe is installed into opening of tube plate, it is located in the end of pipe pre-assembled structure, consisting exploding element in the form of ring made of foil, located at butt of strength cylinder made of dielectric, allowing through co-axial opening, in which rod electrode, connected to electric contact with central part of ring of foil. It is used the second electrode in the form of cogging metallic bushing, located in the cylinder for the condition of providing of fixations at its side surface of peripheral part of ring, connected to rod electrode and supporting on centering insulating chain gears of core insert with installed on it guiding cone and body of revolution, implemented from strength material. There is implemented location solid of revolution and director cone of mentioned structure in area of pipe straining, filling of pipe cavity by transmitting medium, waterproofing of pipe by flexible cork of one butt and ring insertion of other, implementation of electric explosion of exploding element. Herewith in used preframed structure of ring surface from foil are implemented with profile by hyperbolic function, thickness, increasing from peripheral to central part, metallic bushing is implemented with inner clamp at the end, core insert allows length, equal to length of solid of revolution and director cone with centering gear and connected to rod electrode by means of rubber cord, reinforced by metallic strand, diametre of which is equal to inner diametre of ring.

EFFECT: there are increased effectiveness of method and coefficient of efficiency.

6 dwg, 1 ex