FIELD: welding. SUBSTANCE: hydrocarbon, for instance propane, is fed into welding zone. Edges are heated by inductor to temperature above Curie point but below melting temperature. Then edges are cooled for short time by interruption of action with inductor till metal temperature drops to level above Curie point. Again electromagnetic field causing heating of edges to melting temperature with formation of weldpool of molten metal is created with which crystallization weld is formed. EFFECT: enhanced welding efficiency and reliability. 3 cl
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|---|---|---|---|
| METHOD TO JOIN SHEET-LIKE PIECES BY FUSION WELDING ALONG PROCESSED EDGES | 1992 |
|
RU2031762C1 |
| FLASH WELDING METHOD | 0 |
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SU662298A1 |
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| HIGH-FREQUENCY WELDING PROCEDURE | 0 |
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| METHOD OF HIGH-FREQUENCY WELDING OF BEADED EDGES | 0 |
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RU2158663C1 |
