ELECTRIC RESISTANCE WELDING METHOD

PURPOSE:To reduce electric power consumption for welding by using high frequency welding currnt and intermediate frequency welding current jointly and continuously. CONSTITUTION:Two kinds of work coils 3, 4 are arranged for a steel tube 1 to be welded on the inlet side of the steel tube near squeeze...

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Bibliographische Detailangaben
Hauptverfasser:	HIRANO YUTAKA, WATANABE SHIYUUZOU, TAMURA HISATSUNE, KANOU NORIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PURPOSE:To reduce electric power consumption for welding by using high frequency welding currnt and intermediate frequency welding current jointly and continuously. CONSTITUTION:Two kinds of work coils 3, 4 are arranged for a steel tube 1 to be welded on the inlet side of the steel tube near squeeze rolls 2, 2'. One of these work coils 3, 4 is used to let flow high frequency welding current of 180- 450kHz and another is used to let flow intermediate welding current of 10- 90kHz. These are arranged on the inlet side of the steel tube of the squeeze rolls 2, 2' one after another, and either of the two may be placed in front.