Extrusion Moulding (Leaving Cert Engineering): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What type of manufacturing process is extrusion moulding?
What type of manufacturing process is extrusion moulding?
Continuous process
In what form is polymer material usually fed into the hopper?
In what form is polymer material usually fed into the hopper?
Pellet form
What are the two critical functions of the screw mechanism?
What are the two critical functions of the screw mechanism?
Mixes polymer & creates pressure
What determines the final cross-sectional shape of the extruded product?
What determines the final cross-sectional shape of the extruded product?
The extrusion die
What solidifies the material as it exits the die?
What solidifies the material as it exits the die?
Coolant system
What is the molten plastic created in the barrel called?
What is the molten plastic created in the barrel called?
The melt
Which product is typically made by extrusion moulding?
Which product is typically made by extrusion moulding?
Window frames
What key characteristic do all extruded products share?
What key characteristic do all extruded products share?
Uniform cross-sections
Why is extrusion moulding highly efficient for large production volumes?
Why is extrusion moulding highly efficient for large production volumes?
Continuous operation
Besides heating elements, what else helps melt the polymer material?
Besides heating elements, what else helps melt the polymer material?
Friction from screw action
Where can the finished product be cut to required lengths?
Where can the finished product be cut to required lengths?
On the conveyor belt
What property makes thermoplastics essential for extrusion moulding?
What property makes thermoplastics essential for extrusion moulding?
Can be heated, shaped & cooled repeatedly