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http://dx.doi.org/10.5762/KAIS.2011.12.4.1982

Estimation of viscosity of by comparing the simulated pressure profile from CAE analysis with the Long Fiber Thermoplastic(LFT) measuring cavity pressure  

Lim, Seung-Hyun (Dept. of Chemical Engineering SoonChunHyang University)
Jeon, Kang-Il (Dept. of Chemical Engineering SoonChunHyang University)
Son, Young-Gon (Division of Advanced Mater ial Engineering, Kongju National University)
Kim, Dong-Hak (Dept. of Chemical Engineering SoonChunHyang University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.4, 2011 , pp. 1982-1987 More about this Journal
Abstract
In this study, we proposed a new method that can estimate viscosity curves of unknown samples or high viscous resins like LFT(Long Fiber Thermoplastics). First, we built the system that could detect the pressure of melt during filling the cavity in a mold. It consists of both pressure sensors which are installed in a mold and the Kit which can convert analog signal to digital signal. The kit measures the melt pressure in mold cavity. We could also simulate the cavity pressure during filling process with commercialized CAE softwares(ex, Moldflow). If the viscosity data in CAE Database were correct, the simulated pressure profile coincided with the measured one. According to our proposed algorithm, we obtained correct viscosity data by iterating the process of comparing the simulated profile with the measured one until both coincided each other. In order to verify this algorithm, we selected well-defined PP resin and concluded that the experimental profile comply with the CAE profile. We could also estimate the optimized viscosity curves for PP-LFT by applying our method.
Keywords
Pressure sensor; Viscosity; CAE Analysis; Estimation of viscosity;
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