CD 1: The Material

• Plastics and Polymers
• Structure of Polymers
• The Origin of Plastics
• Classifications of Polymers
• Plastics and the Injection Molding Process
• Rheology
• Plastics Properties
• Main Types of Plastics

CD 2 : The Injection Molding Machine

• The single screw injection molding machine
• The injection section
  • Feed / hopper:
  • Barrel
  • Heater bands:
  • Screw
  • Screw tip / non-return valve
  • Nozzle
  • Screw drive motor
  • Hydraulic Injection cylinder
• The clamping section
  • Platens
  • Tie-bars
  • Ejection system
  • Clamping system
• Machine Start-Up
• Machine Shut-Down
• Mold Set-Up

CD 3: Injection Molds

• Mold Components
• Types of Molds:
• Number of Cavities
• Sprue and Runners
• Gates
• Ejection Systems
• Cooling Circuitry
• Mold Venting

CD 4 : The Process

• Interaction Material -Machine - Mold
• Main Processing Parameters
• The Injection Molding Cycle
• Stages of the Injection Molding Process
  • Mold Opening
  • Carriage retraction
  • Injection of the Material
  • Packing
  • Part Cooling
  • Plastification of the Material
  • Decompression
  • Carriage forward
  • Mold Opening
  • Part Ejection
• TroubleShooting
  • Short Shots
  • Flash
  • Sink Marks
  • Voids
  • Warpage
  • Delamination
  • Burn Marks
  • Part sticking to the mold
  • Sprue Sticking
  • Black Specks
  • Brittle Parts
  • Flow Marks / Grooves