Snail and twin-snail arrangement for use in elastomer mixture extruders and associated method for extruding elastomer mixtures
Patent Information
- Application Number
- DE602021023669
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2020-11-09
- Filing Date
- 2021-11-05
- Publication Date
- 2024-12-18
- Estimated Expiration
- 2041-11-05
AI Technical Summary
Existing twin-screw extruders for elastomer mixtures face challenges in efficiently filtering compounds without causing temperature increases, air entrapment, and mechanical stress, while maintaining high productivity and environmental sustainability.
A twin-screw extruder design with intermeshing screws featuring a geometry that includes distinct sectors for intake, transition, and high-pressure zones, optimized to minimize friction, air evacuation, and temperature rise, with a single-start thread and C-chambers that maximize flowrate and pressure only in the filtration zone.
The design achieves efficient filtration with controlled temperature, reduced mechanical stress, and high productivity, ensuring the elastomer mixture remains in a non-crosslinked state, while minimizing energy consumption and environmental impact.