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- Title
OPTIMIZATION AND APPLICATION OF TEMPERATURE FIELD IN RAPID HEAT CYCLING MOLDING.
- Authors
Mingliang HAO; Haimei LI
- Abstract
The rapid thermal cycle molding belongs to the injection mold temperature control system which is helpful to improve moldability and enhance part quality. Despite many available literatures, rapid thermal cycle molding does not represent a welldeveloped area of practice. The challenge is the uneven distribution of temperature in the cavity after heating, which mostly leads to defects on the surface of the products. In order to obtain uniform cavity surface temperature distribution of rapid thermal cycle molding, the power of heating rods of the electric-heating system in an injection mold was optimized by the response surface method in this work. The proposed optimization result was applied to design a complex rapid thermal cycle molding injection mold with side core-pulling, holes, and different thickness of an automotive part to verify its effectiveness by injection molding. Compared with initial design, the mold temperature uniformity was remarkably improved by 79%. Based on the optimization and injection molding numerical simulation results, the workable molding process to weaken the weld-lines effects on the quality was suggested and the practical injection molded parts were well produced.
- Subjects
INJECTION molding; THERMODYNAMIC cycles; THERMOCYCLING; TEMPERATURE control; SURFACE defects; TEMPERATURE distribution
- Publication
Thermal Science, 2022, Vol 26, Issue 2C, p1985
- ISSN
0354-9836
- Publication type
Article
- DOI
10.2298/TSCI210606291H