Thermosets Compounding
Twin screw lines for epoxy, phenolic and BMI compounds and for powder coatings, from the premixing system to the crusher. The resin has to melt and mix without starting to cure in the barrel.
- Epoxy
- Phenolics
- Bismaleimide (BMI)
- Fluoropolymers
Melt and mix, but do not cure
A thermoset compound is still reactive when it leaves the extruder; it cures later, in the customer’s mould or oven. Three design choices keep the reaction out of the barrel.
Curing in the barrel
Too much heat or residence and the resin starts to react before it leaves the die.
Precise temperature control + appropriate screw design
The compound melts and disperses without reacting during the compounding process.
Material that sticks, overheats and degrades
Any resin that hangs up on a screw or barrel wall keeps heating.
Less clearance between screws · very smooth screw and barrel surfaces
Better self-cleaning; material does not adhere to surfaces, overheat or degrade.
Getting at the screws
Reactive material must be cleaned out, not left to cure inside.
Split barrel that opens up and down
Easy cleaning and maintenance.
The line, premix to crusher
USEON can supply the complete line. The compound is cooled straight after the die and leaves as crushed chips rather than as pellets.
- Premixing system
- Feeding
- Twin screw · split barrel
- Cooling rolls & belt
- Crusher
Where thermoset compounds go
Parts that have to keep their shape under heat and load, and powder coatings.
Automotive
Electrical
Marine
Coatings
Project · China
300 kg/h thermosets compounding line
A SAT65 twin screw thermosets compounding line in China.
- Extruder
- SAT65 twin screw
- Output
- 300 kg/h
MachineCo-rotating twin screw extruder SolutionEngineering plastic
Tell us the resin system, the fillers and curing agent in the premix, the product (moulding compound or powder coating) and the output you need. We will propose the temperature control, screw design and the equipment from premix to crusher.
- 01Resin, fillers & curing agent
- 02Temperature & screw design
- 03Cooling & crushing
Souder Chen
Head of Compounding Division
With USEON since 2008. Twin screw compounding, devolatilization and recycling lines.