PROCESS OF ARC OVERLAYING IN ATMOSPHERE OF PROTECTIVE GASES Russian patent published in 1996 - IPC

FIELD: hardening and reconstruction overlaying. SUBSTANCE: prior to overlaying uniform oxidation of surface of part is performed. Overlaying of first layer is carried out with simultaneous oxidation of metal in oxidizing atmosphere, overlaying of successive layers is conducted with simultaneous oxidation of metal behind tail part of metal pool by oxidized atmosphere which is supplied into zone behind tail part of pool for all layers. EFFECT: diminished "straying" of arc by way of its thorough screening and increased penetration capability of arc with technological characteristics. 1 dwg