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다구찌 방법을 이용한 밀스케일 재활용에 대한 공정변수의 최적화
백석흠(Seok Heum Baek),홍순혁(Soon Hyeok Hong),주원식(Won Sik Joo),김창기(Chang Kee Kim),정유엽(Yu Yeob Jeong),신상운(Shang Woon Shin) Korean Society for Precision Engineering 2008 한국정밀공학회지 Vol.25 No.2
With society focusing more and more on environmental issues, the recycling of materials of all types has become an important concern. In this paper, optimization method is developed for reducing cost and improving quality in mill scale recycling. An experimental investigation into the process parameter effects is presented to determine the optimum configuration of parameters for performance, quality and cost. Taguchi's optimization approach was used to obtain the optimal parameters. The significant parameters were identified and their effects on mill scale recycling were studied. As a results, a confirmation experiment with the optimal levels of process parameters was carried out in order to demonstrate the effectiveness of the Taguchi method.
정유엽,이성룡,황용길 동아대학교 공과대학 부설 한국자원개발연구소 1988 硏究報告 Vol.12 No.2
This study has been carried out to investigate the effect of low current in electroless Ni-P plating. The results obtained from the experiment are summarized as follows ; 1) The plating rate in the composite plating of electrolysis and electroless is more double than in electroless plating. And optimum temperature of electroless plating is 85-95℃ but composite plating has been gained a excellent quality of plating at 40℃ 2) The higher temperature, higher PH, and lower current density, the better a leveling of plating surface is. And the composite plating under 0.5A/d㎡ current density is better than the electroless plating in the leveling of plating surface. 3) With passing the time, the composite plating is less than that of the electroless in the reduction of plating rate. 4) Composite plating is higher than electroless plating in hardness when they have been plated and heat-treated at 350℃