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2014 №06 (31) DOI of Article
10.15407/tpwj2014.06.32
2014 №06 (33)

The Paton Welding Journal 2014 #06
TPWJ, 2014, #6-7, 147-150 pages  
HEATING AND MELTING OF ELECTRODES WITH EXOTHERMIC MIXTURE IN COATING
 
Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 6-7, 2014 (June-July)
Pages                      147-150
 
 
Authors
A.F. VLASOV, N.A. MAKARENKO and A.M. KUSHCHY
Donbas State Machine Building Academy. 72 Shkadinov Str., 84313, Kramatorsk, Donetsk region, Ukraine. E-mail: dgma@dgma.donetsk.ua
 
 
Abstract
It is a well known fact that introduction of exothermic mixtures in electrode coating composition can increase efficiency of manual arc welding. At that, distribution of heat between electrode and workpiece is not enough studied. This work studies thermal characteristics of heating and melting of the electrodes with different content of exothermic mixture in the coating. It is shown that introduction of the mixture in amount to 53.4 wt.% results in rise of coefficient of core melting from 8.7 to 11.6 g/(Aрh), weld deposition coefficient from 8.1 to 13 g/(Aрh) as well as growth of efficiency of base metal heating. 10Ref., 2 Tables. 1 Figure.
 
Keywords: arc welding, coated electrodes, exothermic mixture, heating and melting of electrode, thermal characteristics
 
 
Received:                16.04.14
Published:               28.09.14
 
References
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