Journal of the Korean Society for Precision Engineering (한국정밀공학회지)
- Volume 10 Issue 3
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- Pages.57-68
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- 1993
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
A Study on Coating Deviation Effect by Air Knife Characteristics in CGL
연속용융도금라인에서 에어나이프 특성이 도금편차에 미치는 영향
- Bae, Y.H. (Graduate School of Busan National University) ;
- Ahn, D.S. ;
- Lee, S.H.
- Published : 1993.09.01
Abstract
Air Wiping technique is widely used because of easy and efficient coating control in present CGL. Coaring weight is decided by nozzle header pressure, strip line speed and distance between strip and nozzle. Coating defects are results from unbalance of these factors and coating equipment calibration inaccuracy. Therefore, this study is mainly dealing with the cause of coating defects such as edge overcoating and coating deviation. The coptimum working condition is suggested by formulated coating model using collected working data. We developed two demension analysis program for air flow in nozzle and calculated dynamic pressure and air velocity with this program. The productivity and coating guality are improved by applying the result of this reserach.
Keywords
- CGL;
- Air wiping;
- Edge overcoating;
- Coating Deviation;
- Air Knife;
- Coating Model;
- Air Flow Computer Simulation
- 연속용융아연도금라인;
- 공기와이핑;
- 단부과도금;
- 도금편차;
- 고속공기분사장치;
- 부착량모델식;
- 공기유동 컴퓨터 수치해석;