Abstract
In thin - wall injection molding processes, parts thinner than 1 mm are produced using high injection pressures and velocities. Modeling has not been successful in predicting process physics during molding. We have built a high pressure slit rheometer that enables us to measure the Theological properties of polymers at elevated pressures and temperatures. Measurements were done with polystyrene, and the results showed the effect of pressure and the effect of viscous heating on the viscosity. Results from such measurements will allow us to introduce viscosity pressure effects during mold filling of Thin-Wall Injection Molding.
Original language | English |
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Pages | 2320-2324 |
Number of pages | 5 |
State | Published - 2006 |
Externally published | Yes |
Event | Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006 - Charlotte, NC, United States Duration: 07 05 2006 → 11 05 2006 |
Conference
Conference | Society of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006 |
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Country/Territory | United States |
City | Charlotte, NC |
Period | 07/05/06 → 11/05/06 |
Keywords
- High pressure slit rheometer
- Pressure dependant viscosity
- Viscous dissipation