동력기계공학회지 (Journal of Power System Engineering)
- 제11권1호
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- Pages.107-114
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- 2007
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- 2713-8429(pISSN)
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- 2713-8437(eISSN)
연강의 습식 수중 아크 용접 특성에 관한 연구
A Study on the Properties of Underwater Wet Arc Welding for the Mild Steels
초록
Underwater wet arc welds were experimentally performed on 11mm thick SS400 mild steel plate as base metal by using six different types of flux coated electrodes of 4.0mm diameter; KSKR, KSKT, USBL, JPUW, UWEA, and UWEB. As results, the developed flux coated underwater electrode had a good weldability compared with other domestic terrestrial electrodes. By rapid cooling rate, the hardness value of HAZ were increased by quenching effects. Mechanical properties for the multi-pass butt-welding specimen are also tested experimentally. The feasibility of the developed underwater electrode was experimentally studied and the results achieved in this wet arc welds have shown that the developed wet welding electrode UWEB can have a degree of integrity.
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