Abstract
Appropriate modeling of heat transfer from the polymer material to the injection mold is essential to achieve accurate simulation results. The heat transfer is commonly modeled using convective heat transfer and applying heat transfer coefficients (HTC) to the polymer-mold-interface. The set HTC has an influence on the results for filling pressure, cooling performance and shrinkage, among others. The current paper, presents a new strategy to measure HTC in injection molding experiments using Newtons law of cooling. The heat flux is calculated out of demolding heat (measured by means of calorimetry), injection heat (measured by means of an IR-sensor), cooling time and part mass. Cavity surface area, average mold surface temperature and average part surface temperature lead to the HTC.
| Original language | German (Austria) |
|---|---|
| Title of host publication | PROCEEDINGS OF PPS-29: The 29th International Conference of the Polymer Processing Society - Conference Papers |
| Number of pages | 5 |
| Publication status | Published - 2014 |
Fields of science
- 205 Materials Engineering
- 205011 Polymer engineering
- 201117 Lightweight design
- 205012 Polymer processing
- 205015 Composites
- 104019 Polymer sciences
- 301208 Pharmaceutical technology
JKU Focus areas
- Nano-, Bio- and Polymer-Systems: From Structure to Function
- Engineering and Natural Sciences (in general)