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Views: 0 Author: Site Editor Publish Time: 2026-03-26 Origin: Site
Use kneading blocks (30°–60°) to create high shear for breaking pigment and filler clusters.
Add reverse thread elements to build pressure and extend mixing time.
Arrange sections in the order: conveying → melting → high‑shear dispersion → homogenization → devolatilization.
For powder coatings, use moderate shear to avoid overheating while ensuring full pigment wetting.
Screw speed: Increase RPM moderately to strengthen shear; avoid excessive speed that causes overheating or degradation.
Throughput: Do not overload the extruder. Maintain 60%–80% filling rate for sufficient shear and mixing time.
Temperature profile: Set zones from low to high to ensure full melting before the dispersion zone; stable temperature prevents uneven viscosity and poor dispersion.
Torque control: Keep torque at 70%–85% for ideal shear energy input and stable production.
Use pre‑mixing to ensure initial uniformity of resin, pigment, additives, and fillers.
Use loss‑in‑weight feeders for high precision and stable feeding, especially for highly filled systems.
Sieve powders to remove large agglomerates that are hard to break during extrusion.
Avoid moisture, which causes bubbles and poor dispersion.
Ensure full melting before the high‑shear zone.
Use moderate shear in the early stage to build uniform melt without local overheating.
TYOPSUN extruders feature excellent self‑wiping and heat‑exchange efficiency for stable, homogeneous melt.
Clean the screw, barrel, and feed throat when changing formulas or colors to avoid cross‑contamination.
Check screw and barrel clearance regularly; excessive clearance reduces shear and dispersion efficiency.
Use genuine wearing parts from TYOPSUN to maintain long‑term stability.
Optimized screw geometry for balanced dispersive and distributive mixing
Precise temperature and torque control system
High‑accuracy feeding and stable throughput
Excellent self‑cleaning and anti‑contamination design
Professional formula and process guidance
