大極間サブマージアーク溶接用フラックスの研究

概要

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In order to apply an one-side welding process to the lower temperature service steel plate, the reduction of welding heat input, the reorganization of heat cycles, etc., are requested. From this point of view, Longer Electrode Distance Submerged Arc Process has been proposed, and new type flux which makes possible to weld with such longer electrode distance, was researched. With common flux, the solidified slag formed by a leading electrode has larger electric resistance and thus the arc restriking by a trailing electrode is difficult. In order to get better arc restrikability, it is necessary to make electric conductance of solidified slag more than 0.01mho/cm at the point of a trailing electrode wire tip. Higher electric conductance and better arc restrikability of the slag can be got with the flux of high TiO_2 content, and TiO_2-CaF_2-Al_2O_3 system flux is the most suitable to the Longer Electrode Distance Submerged Arc Process.
社団法人溶接学会の論文
1982-04-05