METHOD OF TUBE SHELLS PLATING BY EXPLOSION WELDING Russian patent published in 2011 - IPC B23K20/08 B21D26/08 

FIELD: technological processes.

SUBSTANCE: invention may be used for production of multilayer tube shells by explosion welding. The plated shell is installed in a massive matrix. Plastic material is installed between the external surface of the plated shell and the inner surface of the massive matrix. The plating shell is installed with a gap inside the plated shell, and an electric hydraulic generator is installed inside to develop impact waves. The generator comprises electrodes installed in a tight cylindrical body insulated along its inner surface and filled with fluid, in walls of which there are cumulative grooves with lining provided in them. Impact waves in the fluid are produced by development of a pulse high-voltage electric discharge between the electrodes. The plating and plated shells are exposed to cumulative jets formed by displacement of lining of cumulative grooves under action of impact waves.

EFFECT: method makes it possible to improve quality of welded joints and to reduce prime cost of works, at the same time it is environmentally safe since toxic explosives are not used.

2 cl, 4 dwg