| Title |
A Study on Atmospheric Plasma Cleaning (APC) of Residual Oil on the Surface Cold Rolled Stainless Steel |
| Authors |
오상훈(Sang Hun Oh); 이성기(Sung Ki Lee); 윤재홍(Jae Hong Yoon); 조동율(Tong Yul Cho); 박봉규(Bong Gyu Park); 이성규(Sung Kyu Rhee) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
Atmospheric Plasma Cleaning; APC; Rolling oil; Cold rolled stainless steel; Micro cleaning |
| Abstract |
Atmospheric Plasma Cleaning (APC) was studied for the residual rolling oil contaminants on the surface of cold rolled Stainless Steel after optimizing APC conditions. Electrodes were placed at a distance of 10 mm, with an RF power of 220W, and line velocity of 0.5 m/min. The residue left by APC was 0.78 mg/㎡, which was less than that of the 1 mg/㎡ approximately by other classical cleaning methods. Especially, APC combined with pre-cleaning by 550℃ Nitrogen gas left a residue of only 0.01 mg/㎡. Cleaning effect are also improved when oxygen gas is added to the atmospheric plasma. It was confirmed by the investigation of the official Korea Chemical Analysis Center that the APC-hot nitrogen method is superior to other methods. The residual contaminants for different methods were as follows: the classical method: about 1 mg/㎡, APC : 0.78 mg/㎡, and APC-hot nitrogen: 0.10 mg/㎡. |