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논문 기본 정보

자료유형
학술저널
저자정보
Lin, Chung-Chih (Department of Mechanical and Computer-Aided Engineering, National Formosa University) Wu, Chieh-Liang (Department of Mechanical and Computer-Aided Engineering, National Formosa University)
저널정보
테크노프레스 Advances in materials research : AMR Advances in materials research : AMR 제3권 제2호
발행연도
2014.1
수록면
91 - 103 (13page)

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초록· 키워드

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A study that demonstrates how to investigate the molded part quality and the consistency of injection process based on the rheological concept is proposed. It is important for plastic material whose melt viscosity is variable with respect to the processing condition. The formulations to couple the melt viscosity with injection pressure and fill time are derived first. Taking calculations of the measured pressure and the time by using these formulations, the melt viscosity in injection process can be determined on machine. As the relation between the injection speed and the melt viscosity is constructed, the influences of the setting parameter of injection machine on the molded part quality can be investigated through evaluating the state of the melt viscosity. In addition, a pressure sensor bushing (PSB) designed with a quick installation feature is also provided and validated. The results show that a higher injection speed improves the tensile strength of the molded part but also the consistency of the molded part quality. This work provides an alternative to evaluate the molding quality scientifically.

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