FIELD: machine engineering, possibly gas-shield electric arc welding by means of non-consumable electrode.
SUBSTANCE: method comprises steps of alternatively feeding several gases or their mixtures by pulses; at each next pulse feed using gases (gas mixtures) having ionization potentials different in comparison with those of gases or gas mixtures of previous pulse feed; periodically changing electric arc gap simultaneously with gas feed pulses; setting basic voltage of electric arc equal to optimal voltage in medium of gas or gas mixture with minimum ionization potential; setting difference between maximum and minimum voltage values of arc at periods of previous and next pulse feed of gases or gas mixtures in range 1 - 7 V.
EFFECT: enhanced quality of welded joints, possibility for adjusting fusion depth.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESS OF ARC WELDING IN ATMOSPHERE OF PROTECTIVE GASES | 1998 |
|
RU2130370C1 |
| PROCESS OF ARC WELDING IN ATMOSPHERE OF SHIELDING GASES | 1992 |
|
RU2008153C1 |
| METHOD OF PULSED ARC WELDING IN PROTECTIVE GASSES MEDIUM | 0 |
|
SU1816596A1 |
| METHOD OF GAS-SHIELDING ARC WELDING | 0 |
|
SU1558604A1 |
| METHOD OF AC ARC WELDING WITH NON-COMBUSTIBLE ELECTRODE | 1990 |
|
RU2012461C1 |
| METHOD OF NONCONSUMABLE ELECTRODE WELDING IN ATMOSPHERE OF PROTECTIVE GASES | 2019 |
|
RU2705827C1 |
| METHOD OF WELDING BY NON-CONSUMABLE ELECTRODE IN PROTECTIVE GASES | 2011 |
|
RU2475344C1 |
| METHOD OF MAKING WELDED JOINT ROOT PASS BY NONCONSUMABLE ELECTRODE IN PROTECTIVE GASES | 2008 |
|
RU2381092C2 |
| METHOD OF ARGON-ARC TREATMENT OF WELDED JOINTS FOR REMOVAL OF WELDING TEMPER | 2007 |
|
RU2376345C2 |
| METHOD OF ARC TWO-ELECTRODE MECHANIZED WELDING | 2019 |
|
RU2724759C1 |
