The Paton Welding Journal, 2014, №06



2014 №06 (31)

DOI of Article 10.15407/tpwj2014.06.32

2014 №06 (33)

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The Paton Welding Journal, 2014, #6-7, 147-150 pages  

HEATING AND MELTING OF ELECTRODES WITH EXOTHERMIC MIXTURE IN COATING

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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10. Vlasov, A.F., Kushchy, A.M. (2011) Technological characteristics of electrodes with exothermic mixture in coating for surfacing of tool steels. Svarochn. Proizvodstvo, 4, 10-15.

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Suggested Citation

A.F. VLASOV, N.A. MAKARENKO and A.M. KUSHCHY (2014) HEATING AND MELTING OF ELECTRODES WITH EXOTHERMIC MIXTURE IN COATING. The Paton Welding J., 06, 147-150.

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