Achievements Konstantin Khrenov

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a modern underwater welding


khrenov dedicated entire career development of welding techniques , equipment. invented methods of electric welding , cutting metals under water, designed power sources arc , spot welding, ceramic fluxes, electrode coatings, methods of cold pressure welding, diffusion welding, plasma cutting , many others. breakthrough achievement development of electrodes underwater welding in 1932. successful test @ black sea in same year first practical realization of underwater welding. in method, gas bubbles formed result of welding reactions generating stable flow shielded arc water. underwater welding had found practical application , in 1936–1938 used in lifting of ship boris sunk in black sea, in repair of bridges , other ships, during world war ii.








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