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김광수(Kwangsoo Kim),김명섭(Myoung Sub Kim),김강대(Kang Dae Kim),정덕채(Duk Chae Jung),김동수(Dong Soo Kim),최병오(Byung Oh Choi) 한국유체기계학회 2008 유체기계 연구개발 발표회 논문집 Vol.2008 No.-
In this paper, we designed sandwich type pressure regulator for air pressure control system. As a result of research, we obtained several important conclusion. First, we decided theory of popper valve and relief valve which are used in sandwich type pressure regulator, and then designed prototype of pressure regulator. Second, we organized circuit diagram of dual pressure regulator of air pressure control system.
오존층 파괴 물질인 TCE, CFC의 탄화수소계 대체세정제를 이용한 스크린인쇄 세정
이기창,정덕채,김종완,조형재 明知大學校 産業技術硏究所 1999 産業技術硏究所論文集 Vol.18 No.-
Alternatives cleanser to 1,1,1-TCE & CFC-113 used as cleanser for industrial parts are developed because the cleanser is scheduled to phaseout after 1996. Also, Existing cleaner using screen printing are the organic solvents including aromatic compounds carried with poisonous and stench. Besides, cleaning method of current screen printing are for the most part mixed cleaning method of dipping and polish using duster. Accordingly, It had a bad effect to the working environment and the worker body. Therefore, Using alternative hydrocarbon cleanser to 1,1,1-TCE & CFC-113 used as cleanser for industrial parts be substituted for existing cleanser against screen printing ink measured the cleaning efficiency according to gravimetric analysis method and property change of gossamer according to Image Analyzer. Also, Cleaning process system carry with excellent cleaning efficiency studied which was proposed new cleaning process including ultrasonic and vibration cleaning process be substituted for existing.