H - Electricity – 05 – B
Patent
H - Electricity
05
B
327/41
H05B 7/20 (2006.01) B23K 25/00 (2006.01)
Patent
CA 1161126
ABSTRACT OF THE DISCLOSURE The disclosure teaches a method for electroslag welding of metals by a large-section electrode. In accordance with the invention there are provided the steps of placing the workpieces to be welded together onto a metal mould with a gap between the edges to be weld-joined. An electrode is inserted into the gap until it contacts the bottom of the metal mould. A slag bath is established. The metal mould is filled with the metal of the electrode being fused. The gap between the edges being weld-joined is filled with the metal of the fused- down electrode. The electrode metal fusion rate is selec- ted in filling the metal mould with the molten metal so that it is less than the electrode metal fusion rate in filling the gap between the edges being weld-joined at constant electrical parameters of the welding with metal. A brittle interlayer is produced in the course of welding after forming a shrinkhead before reinforcing the weld produced in the gap. A weld is formed with a low elec- trical resistance in the gap and the shrinkhead is removed at the place of the brittle interlayer.
359818
Antonov Anatoly V.
Safonnikov Anatoly N.
Institut Elektrosvarki Imeni E.o. Patona Akademii Nauk Ukrainsko
Swabey Ogilvy Renault
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