Quality control in injection molding (part 1): Rheological analysis of process relevant aging influences
The rheological behavior of polymers is next to the production charge influenced by temperature, time and the material condition represented by the residual moisture content. Based on a detailed material characterization the development of a new model approach to describe the rheological behavior with respect to chemical and physical changes is presented. The prognosis of the viscosity related to structural changes is possible by the new model approach that can be used for process simulations. By process simulations the resulting process variations by aging influences on the material behavior are discussed exemplary for quality related parameters. These are the basics for the development of a new process control to compensate aging influences and charge variations.
The Journal of Plastics Technology is a peer reviewed internet periodical published under the auspices of the Scientific Alliance of Polymer Technology (WAK)
International Polymer Processing, the journal of the Polymer Processing Society, is a discussion forum for the world-wide community of engineers and scientists in the field of polymer processing.
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