Using exothermic mixtures in manual arc welding and electroslag processes

An exothermic flux with electrical conductivity in the solid state and producing rapidly a slag pool of the required volume in the starting period of the electroslag process with a 'solid' start instead of a 'liquid' start is developed. The chemical composition of the reduced met...

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Bibliographic Details
Published inWelding international Vol. 31; no. 7; pp. 565 - 570
Main Authors Vlasov, A. F., Makarenko, N. A., Kushchiy, A. M.
Format Journal Article
LanguageEnglish
Published Cambridge Taylor & Francis 03.07.2017
Taylor & Francis Ltd
Subjects
Arc welding
Electrode
Electroslag process
exothermic flux
exothermic mixture
Flux
Iron and steel making
Manuals
Pools
productivity of the process
quality of the metal
slag bath
Slags
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Summary:An exothermic flux with electrical conductivity in the solid state and producing rapidly a slag pool of the required volume in the starting period of the electroslag process with a 'solid' start instead of a 'liquid' start is developed. The chemical composition of the reduced metal equivalent to the standard composition of 9KhF steel is described. In comparison with the existing methods of producing a slag pool, the electroslag processes using exothermic alloyed flux with the 'solid' start increase the yield of suitable metal by 2-7%, save 1.2-1.4 kWh for melting 1 kg of standard flux and reduce the duration of the starting period of the electroslag process by 25%.
Bibliography:ObjectType-Article-1
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content type line 23
ISSN:0950-7116
1754-2138
DOI:10.1080/09507116.2017.1295561