METHOD OF AND DEVICE FOR ELECTRIC ARC SURFACING OF VERTICAL SURFACES Russian patent published in 1996 - IPC

FIELD: nuclear power plants and petrochemical industry; arc cladding of apparatuses and inner cylindrical surfaces. SUBSTANCE: process is carried out with use of crystallizer in form of vertical cooled wall. Consumable electrode is placed in parallel with vertical surface to be arc clad at distance $$$ where $$$ is technological coefficient; $$$ is heat input. Width of slot formed by arc clad surface and vertical wall of crystallizer is $$$ where $$$ - electrode wire cross section area; K - slot width variation coefficient; $$$ - electrode feeding speed; $$$ - surfacing speed. Gas supply unit of device is Made in form of heat sinking plate parallel to welder axis. Gas feed hole is made in form of slot located over perimeter of plate. Plate is installed for adjustment of distance between surface to be clad and axis of welder. EFFECT: enlarged operating capabilities. 3 dwg