대한용접접합학회:학술대회논문집 (Proceedings of the KWS Conference)
- 대한용접접합학회 2006년도 춘계 학술대회 개요집
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- Pages.133-134
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- 2006
Ni free 선급 규정 4Y grade 플럭스코어드 와이어 개발, 적용
Development & Application of Ni free 4Y grade FCW specified by class society
초록
The welding consumables which are able to be applied in shipbuilding is decided in accordance with base materials. The class societies regulate that 3Y grade welding consumables have to be used for E(H) grade steel. Welding consumables with about 1.5% Ni contents in the deposited metal have been using to weld E(H) grade steel in domestic shipbuilding companies. It was inevitable to obtain impact property of weldment at low temperature. However, when the welding consumables are used in production, there are two kinds of problems-bad workability & cost-up of welding consumables. Therefore development of Ni free welding consumables for E(H) grade steel are required & this paper will introduce the development of Ni free 4Y grade FCW.
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