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Optimization of Mold Heating Structure Parameters Based on Cavity Surface Temperature Uniformity and Thermal Response
Xiaolong Qi1, Jiaxing Li1, Yingjie Liang1
1School of Intelligent Science and Engineering, Hubei Minzu University, Enshi 445000, China.
Polymers
|January 25, 2025
Summary
Optimizing rapid heating cycle molding involves adjusting heating rod positions to improve mold temperature uniformity. This enhances product quality and reduces energy consumption.
Area of Science:
- Materials Science
- Manufacturing Engineering
Background:
- Rapid heating cycle molding is a novel injection molding technique.
- Uniform temperature distribution on mold surfaces is crucial for product quality.
Purpose of the Study:
- To optimize heating power and rod positions in rapid heating molds.
- To improve temperature uniformity and thermal response rate of the mold cavity.
Main Methods:
- Numerical simulation of the mold rapid heating process.
- Orthogonal experiments using temperature uniformity coefficient and thermal response rate as objectives.
- Response surface multiple regression and particle swarm optimization.
Main Results:
- Optimal lateral distances (L1: 20-30 mm, L2: 50-70 mm) and vertical distance (h: 3-8 mm) were identified.
- Optimized scheme reduced energy consumption by 12.5% and temperature difference by 52.17%.
- Achieved a thermal response rate of 0.75 k/s and decreased temperature uniformity coefficient by 44.6%.
Conclusions:
- The study provides optimal parameters for rapid heating cycle molding.
- The developed optimization method enhances mold heating efficiency and product quality.
- This approach significantly reduces energy consumption and improves surface temperature uniformity.
