열접착이 아닌 밀착력이 우수한 표면처리제와 개질화된 접착제만을 이용하여 알루미늄과 폴리프로필렌 필름과의 강한 접착과 내화학성을 형성시킬 수 있는지 알아보았다. 알루미늄 호일은 산성의 크롬계 표면처리제를 이용하여 알루미늄 표면에 형성되어 있는 산화피막을 제거하고, 내식성과 밀착력을 확보하였다. 극성의 알루미늄 호일과 무극성의 폴리프로필렌 필름을 접착하기 위한 강한 접착력 그리고 내화학성이 우수한 접착제는 아크릴고분자와 올레핀 고분자를 포함하는 이액형 접착제들을 이용하여 접착력을 향상을 확인하였다.
A ball strainer screen module, which is used for a condenser tube cleaning system, is a critical mechanical component for maintaining condenser cleanliness. Despite of this importance, not many research have been focused on this module because of its relatively low usage. Employing CFD, this study examines the implication of fluid velocity change and blockage ratio on the ball strainer screen velocity and the static pressure distribution. Through this study, the impact of blockage in the space between ball strainer screen modules is verified. Also, it is found that the ranges of non-dimensional velocity distribution and static pressure distribution decrease as blockage ratio becomes smaller.
In this paper, the basic experiment, electrolytic cell design and basic manufacturing have been made to interpret the characteristics of Hydrogen-Oxygen-Gas-Generator. As for the detailed matters, the data research on basic technology on Hydrogen-Oxygen-Cas and analysis on characteristics of Hydrogen-Oxygen-Gas from basic experiment. Also the experiment of characteristics and comparative evaluation between constant current source using SCR converter from existing method and constant current source using new phase shift PWM control method converter. As results when it has injected constant DC current, we has compared Gas quantities by variable ripple frequencies using phase shift PWM control method converter. Therefore, in linear region, it has not different Gas quantities by constant DC current and by phase shift PWM control method converter. Also, it has increased Gas quantities wilder linear region when put ripple frequency at saturation region. Through, Gas quantities and input power, it has acquired higher input power per Gas quantities at put pulse curren. Therefore, when designing converter or inverter for electrolysis, which has ripple current.
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