PIV를 이용한 중방식 도장용 에어리스 팁의 분사패턴 분석

• Published in: Han-guk haeyang gonghak hoeji (Online) Vol. 28; no. 2; pp. 177 - 184
• Main Authors: 윤순현(Soon-Hyun Yoon), 최효성(Hyo-Sung Choi), 김동건(Dong-Keon Kim), 김봉환(Bong-Hwan Kim), 조승완(Seung-Wan Cho)
• Format: Journal Article
• Language: Korean
• Published: 한국해양공학회 2014
• Subjects: 해양공학; Heavy Duty Coating 중방식 도장; Airless Tip 에어리스 팁; Airless Coating 에어리스 도장; PIV 입자영상유속계; Spray Pattern 분사패턴
• ISSN: 1225-0767; 2287-6715

Heavy duty coating is playing an important role in the field of heavy industry in the development of the shipbuilding and plant industries. Heavy duty coating has the very important function of protecting steel under serious corrosive conditions. The airless tip used for heavy duty coating is an essential part that determines the spray pattern of the paint. This research investigated the injection properties of three airless tips(numbers 521, 523, and 525) by using particle image velocimetry(PIV). The velocity and turbulent intensity according to pressure change with each tip type were investigated by using PIV. If the pressure is greater, the turbulent intensity becomes stronger and the break up of particles becomes bigger as the tip number gets smaller. The velocity is the fastest in the center and decreases in the radial direction.