대형요트의 내구성 향상을 위한 도장작업의 최적화 및 캐비테이션 침식 특성

• Published in: 대한용접·접합학회지 Vol. 37; no. 3; pp. 254 - 261
• Main Authors: 박일초(Il-Cho Park), 한민수(Min-Su Han), 김성종(Seong-Jong Kim)
• Format: Journal Article
• Language: Korean
• Published: 대한용접·접합학회 01.06.2019; 대한용접접합학회
• Subjects: 기계공학; Adhesion force; Cavitation erosion; Urethane coating; Roughness
• ISSN: 2466-2232; 2466-2100
• DOI: 10.5781/JWJ.2019.37.3.9

The purpose of this study is to investigate the correlation between roughness and adhesion force of each painting step to improve the durability of mega yacht hull painting and to analyze cavitation erosion characteristics according to the number of finish paintings. As a result, the adhesion force of the paint with each painting step was greatly influenced by the surface roughness according to the pretreatment work. However, in some painting steps, sandpaper work that forms the surface roughness was not performed by considering the work efficiency and economic efficiency. On the other hand, the cavitation erosion test presented that cavitation erosion resistance was improved by increasing the cohesion force of the urethane coating itself as the number of coatings increased. We also discussed the cavitation erosion mechanism for the optimized urethane coating KCI Citation Count: 3