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Continuous process control in compounding

von Dipl.-Phys. Thomas Hochrein, Dr.-Ing. Karsten Kretschmer, Dr.-Ing. Martin Bastian

During the past years, innovative inline measuring systems for the control of compounding processes have realised a substantial development progress. Many procedures have proofed their field readiness in industrial applications already. However, the plastics processing industry hardly makes use of the potential of these measuring technologies so far which allow to measure far more parameters than just the melt pressure or temperature.

The results of surveys in this branch of trade show that companies know and appreciate the advantages of inline methods. The reason for the fact that innovative inline procedures nevertheless have not yet become widely accepted is predominantly a lack of information. In most areas, the performance of many measuring systems already complies with the users requirements.

This article aims at informing about the state-of-the-art of technology of the most important and most field-ready inline measuring systems as well as at highlighting their capabilities.