Plastics: Twin Screw Extrusion: The Extrusion Process

In training program three of the eight Twin Screw Extrusion series, "The Extrusion Process" explains the mechanics of Twin Screw material feeding and conveying, details the melting processes, describes the commonly used types of mixing systems, covers venting and pumping, die flow, shaping, and cooling. The content also highlights extruder safety hazards.

The Twin Screw Extrusion series is designed to provide training for anyone working in a production environment. These programs use 3D animation and actual production footage to demonstrate complex concepts. Important safety precautions are stressed throughout these training programs.

Tailored for Twin Screw Extruders, these training courses provide specific information for profile, pipe, or compounding extruders. Whether you use a co-rotating or counter rotating extruder, the information will relate to the equipment, materials, and processes operating at your facility.

This training series with help teach any employee the concepts relating to the machine, material, process, quality, startup, shutdown, problem solving, material handling as well as the correct terminology associated with Twin Screw Extrusion.

For all personnel involved in Twin Screw Extrusion.

• Feeding
• Conveying
• Melting & Venting
• Mixing
• Pumping
• Die Flow
• Shaping & Cooling
• Extruder Safety Hazards

• Identify different feed problems and their causes.
• Know how material is conveyed by a twin screw extruder.
• Know when material starts melting and how venting works.
• Know how material must be mixed before entering the die.
• Know how material is pumped to the die using drag flow.
• Identify the different parameters and additives that affect die flow.
• Know how extruded product is both shaped and cooled.
• Identify the different hazards that an extruder poses.