FIELD: process engineering.
SUBSTANCE: invention relates to welding, particularly, to backstrip for welding seam formation in welding of sheet parts. Said backstrip comprises copper inserts 2 with forming groove 3 that has hole 4. Protective gas feed cylindrical channel 5 with piston 6 to confine amount of protective gas feed communicated with hole 4. Piston 6 consists of two spaced apart and interconnected parts to make confined chamber 7. Piston 6 comprises positioning ledge 8 arranged in aid hole 4 of forming channel 3. Rod 9 with central bore is rigidly coupled with piston 6. Chamber made up of two piston parts to feed protective gas is communicated with rod central bore.
EFFECT: simplified design, higher reliability and reduced gas consumption.
3 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| BACKING FOR FORMATION OF WELD SEAM | 2008 |
|
RU2379163C1 |
| DEVICE FOR SEAM WELDING | 2010 |
|
RU2425744C1 |
| BACK-UP PLATE FOR FORMING A WELD | 0 |
|
SU1555098A1 |
| DEVICE FOR PRODUCING BACK SIDE OF SEAM | 0 |
|
SU1771913A1 |
| ARC GAS-SHIELDING WELDING OF STRIPS | 2010 |
|
RU2430819C1 |
| SINGLE-SIDE WELDING APPARATUS WITH FORCED FORMING OF ANNULAR SEAMS | 1990 |
|
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| METHOD FOR ELECTRON-BEAM WELDING OF CLOSED SPHERICAL AND CYLINDRICAL VESSELS AND PROTECTIVE DEVICE FOR ITS IMPLEMENTATION | 2020 |
|
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| INSTALLATION FOR SINGLE-SIDE AUTOMATIC WELDING OF SHEETS | 2014 |
|
RU2555288C1 |
| METHOD OF SINGLE-SIDE BUTT-TYPE ELECTRIC ARC WELDING | 0 |
|
SU727362A1 |
| DEVICE FOR PROTECTING UNDERSIDE OF WELDED JOINT | 0 |
|
SU766810A1 |
