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Vol.43, No.7, 488 ~ 494, 2005
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| Title |
| A Study on Atmospheric Plasma Cleaning (APC) of Residual Oil on the Surface Cold Rolled Stainless Steel |
| 오상훈 Sang Hun Oh , 이성기 Sung Ki Lee , 윤재홍 Jae Hong Yoon , 조동율 Tong Yul Cho , 박봉규 Bong Gyu Park , 이성규 Sung Kyu Rhee |
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| 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/㎡. |
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| Key Words |
| Atmospheric Plasma Cleaning, APC, Rolling oil, Cold rolled stainless steel, Micro cleaning |
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