A Powerful Universal Plasticating System for Single-screw-extruders and Injection-moulding Machines
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E. Grünschloβ
Abstract
The plasticating principle, named HELIBAR for single-screw-extruders [1 to 5] is described and recent experimental results with a HELIBAR - extruder Ø 50×34 D are presented. They prove, that with only one barrier-screw the most different thermoplastic polymers can be processed successfully with very high throughput, good process stability, low melt-temperature and good melt-homogeneity. This concerns standard polymers (PE, PP, PS) and so-called technical polymers (PA, PC, PET, PBT, PMMA) as well as soft polymers and elastomers (PVC-W, PUR, TPE, EVA). Besides, this system in a standard design was tested successfully with a fast-running injection moulding machine Ø 70 × 23 D with different polymers (PS, PP, PE-HD). Compared to previous high-performance screws - with the same installed driving power - lower melt temperatures, good melt homogeneities and enhancements of the plasticating power between 20% and 100% were achieved.
© 2003, Carl Hanser Verlag, Munich
Articles in the same Issue
- Contents
- Contents
- Editorial
- First in a Series: Polymer Processing in Developing Countries Polymer Processing in Peru
- Screw Extrusion
- Modeling and Analysis of Helicoidal Flow in a Conical Extruder
- A Powerful Universal Plasticating System for Single-screw-extruders and Injection-moulding Machines
- Cross Channel Flow Velocity and Motion Trajectory of Polymers in a Helical Channel
- Mixing and Compounding
- Influence of Low Molecular Weight Additives on Die Extrusion Rheometer Flow of Thermoplastic Melts
- Design of a Static Temperature Scanning Ultrasonic Measurement System and Application to Multi-phase Polymer Systems
- Raman Spectroscopy as an On-line Technique to Monitor Shear Flow Effect on Partially Miscible Polymer Blends
- Reactive Extrusion
- Flow Effects on Polymer Transesterification
- A Dynamic Model Accounting for Oscillating Behavior in Reactive Extrusion
- Study on Functionalization of Isotactic PP with Maleic Anhydride in an Internal Mixer and a Twin-screw Extruder
- Quality Aspects on the Power Cable Core Insulation Extrusion and Thermal Curing Process
- Die Extrusion
- Flow Balancing in Extrusion Dies for Thermoplastic Profiles
- Flow Balancing in Extrusion Dies for Thermoplastic Profiles
- Molding
- On the Residual Stress and Shrinkage in Injection Compression Molding
Articles in the same Issue
- Contents
- Contents
- Editorial
- First in a Series: Polymer Processing in Developing Countries Polymer Processing in Peru
- Screw Extrusion
- Modeling and Analysis of Helicoidal Flow in a Conical Extruder
- A Powerful Universal Plasticating System for Single-screw-extruders and Injection-moulding Machines
- Cross Channel Flow Velocity and Motion Trajectory of Polymers in a Helical Channel
- Mixing and Compounding
- Influence of Low Molecular Weight Additives on Die Extrusion Rheometer Flow of Thermoplastic Melts
- Design of a Static Temperature Scanning Ultrasonic Measurement System and Application to Multi-phase Polymer Systems
- Raman Spectroscopy as an On-line Technique to Monitor Shear Flow Effect on Partially Miscible Polymer Blends
- Reactive Extrusion
- Flow Effects on Polymer Transesterification
- A Dynamic Model Accounting for Oscillating Behavior in Reactive Extrusion
- Study on Functionalization of Isotactic PP with Maleic Anhydride in an Internal Mixer and a Twin-screw Extruder
- Quality Aspects on the Power Cable Core Insulation Extrusion and Thermal Curing Process
- Die Extrusion
- Flow Balancing in Extrusion Dies for Thermoplastic Profiles
- Flow Balancing in Extrusion Dies for Thermoplastic Profiles
- Molding
- On the Residual Stress and Shrinkage in Injection Compression Molding
