| 摘要 |
FIELD: machine building. ^ SUBSTANCE: invention relates to plasma-arc material processing, in particular to portable plasma generator intended for coating evaporation and overlaying welding and can be used in machine building and other industrial branches. The plasma generator housing accommodates coaxially arranged anode-nozzle and cathode. The latter is fixed in cathode holder to axially move in electrical insulation tube arranged in a heat-conducting tube-evaporator with developed outer surface. There is a coated fluid vessel filled with porous permeable material and attached to the housing to allow the said cathode holder, electrical insulation tube and tube - evaporator to pass through the said vessel. Aforesaid tube-evaporator contacts the said porous permeable material on the vessel vapor intake side. Contact fasteners are coaxially arranged between the cathode holder and electrical insulation tube. The cathode holder drive mechanism comprises the geared motor fitted on the vessel coating, its shaft extension being threaded for cathode holder to be screwed thereon. The housing accommodates a feeder with powder proportioner and auger mechanism with its geared motor. ^ EFFECT: regular powder feed in evaporation or overlaying welding, reduced of burner warm-up time prior to operation and prolonged stable operation. ^ 1 dwg |
