Tseng Ren-Ho, Wen Chien-Hung, Chang Chen-Hsiang, Chen Yu-Hao, Tsai Chieh-Hsun, Hwang Sheng-Jye
Department of Mechanical Engineering, National Cheng Kung University, Tainan 701401, Taiwan.
Polymers (Basel). 2025 Jan 14;17(2):198. doi: 10.3390/polym17020198.
This study developed a scientific process parameter setup based on nozzle pressure and screw position, with the process parameter search sequence being injection speed, / switchover position, packing pressure, and packing time. Unlike previous studies, this study focuses on the scientific process parameter setup of experiments and simulations, as well as on the implementation of calibration. Experiments and simulations had the same trend of results in the scientific process parameter setup. Although the experiments and simulations had the same trend, the machine response caused parameter errors. After setting the time constant of the simulations, injection speed profiles from the experiments and simulations became closely aligned. The simulation results for the injection speed and / switchover position became closer to the experiment results than the results of the uncalibrated simulation. The error between the simulated and experimental injection speed was reduced from 20% to 6% after applying time constant calibration. The / switchover point error was also reduced from 11% to 5%, highlighting the effectiveness of the time constant to calibrate the simulation.
本研究基于喷嘴压力和螺杆位置开发了一种科学的工艺参数设置方法，工艺参数搜索顺序为注射速度、/切换位置、保压压力和保压时间。与以往研究不同，本研究侧重于实验和模拟的科学工艺参数设置以及校准的实施。在科学工艺参数设置方面，实验和模拟结果具有相同的趋势。尽管实验和模拟趋势相同，但机器响应导致了参数误差。在设置模拟的时间常数后，实验和模拟的注射速度曲线变得紧密对齐。与未校准模拟的结果相比，注射速度和/切换位置的模拟结果更接近实验结果。应用时间常数校准后，模拟注射速度与实验注射速度之间的误差从20%降至6%。/切换点误差也从11%降至5%，突出了时间常数校准模拟的有效性。
