A method of flash-butt welding

In a method of flash-butt welding the travel speed Vt of the machine mobile plate and the welding voltage U2 are changed and the travel speed is controlled through negative feedback by the welding current. The voltage is changed discretely for each flashing interval of duration tm as a function of t...

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Bibliographische Detailangaben
Hauptverfasser:	SERGEI IVANOVICH KUCHUK-YATSENKO, ALECSANDR V DIDKOSKIY, MIKHAIL V. BOGORSKIY, VALERIY G. KRIVENKO, ALEXEI I GORISHNYAKOV, VADIM P. KRIVONOS
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:	In a method of flash-butt welding the travel speed Vt of the machine mobile plate and the welding voltage U2 are changed and the travel speed is controlled through negative feedback by the welding current. The voltage is changed discretely for each flashing interval of duration tm as a function of the increment of the average speed of flashing details of shortening Va during the previous flashing interval, where the value of Va is maintained at a preset level lower than Vt.