The Paton Welding Journal, 2011, №03



2011 №03 (06)

2011 №03 (08)

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The Paton Welding Journal, 2011, #3, 26-28 pages  

CONTROL OF ARC IGNITION DURING EXCITATION OF ELECTROSLAG PROCESS

Yu.N. LANKIN, A.A. MOSKALENKO, V.G. TYUKALOV and V.F. SEMIKIN

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
Abstract
Control of the electric arc ignition process for inducing the slag pool for ESW is described. Algorithm of contact ignition of the arc from the first touch of a workpiece by wire electrode is given. The sharpened electrode tip and feeding of voltage from the power source to the fixed-electrode short-circuited to the workpiece are decisive conditions for reliable ignition of the arc. To transfer to the steady-state process, the electrode feed should be switched on with a lag after the arc ignition. Experimental data on the arc ignition are given.
 
 
Keywords: electroslag welding, ignition of welding arc, induction of slag pool, ignition control
 
 
Received:                ??.??.??
Published:               28.03.11
 
 
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