FIELD: electrothermics; plasma generator control. SUBSTANCE: method involves ignition of working arc between electrode and metal. If electrical variable indicating shorting-out arcs between nozzle and metal exceeds critical value, working-arc current is reduced. Novelty is that nozzle temperature is additionally used as controlled variable characterizing arc burning stability; this temperature is referred to in controlling shielding gas supply and varying working arc current. EFFECT: improved service life of plasma generator.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD INCREASING SERVICE LIFE OF PLASMA GENERATOR USED FOR PLASMA-ARC MACHINING OF MATERIALS | 1999 |
|
RU2174065C2 |
| PLASMA GENERATOR | 2000 |
|
RU2174064C1 |
| PLASMOTRON | 2001 |
|
RU2195391C1 |
| PLASMOTRON | 1998 |
|
RU2150360C1 |
| PLASMOTRON | 1999 |
|
RU2169064C2 |
| NOZZLE UNIT OF PLASMA GENERATOR | 2000 |
|
RU2174063C1 |
| PLASMA GENERATOR | 0 |
|
SU1798084A1 |
| NOZZLE ASSEMBLY OF PLASMA GENERATOR | 0 |
|
SU1764886A1 |
| METHOD FOR BURYING GROUND ELECTRODES IN PERMAFROST EARTH | 1998 |
|
RU2181918C2 |
| TUBE WIRE FOR COATING DEPOSITION | 1993 |
|
RU2048273C1 |
