• Understand the terminology of injection molding.

• Learn the key parts of the injection molding process.

• Gain knowledge of the injection molding equipment and how a machine is set up for molding.

Objectives:

• List the four stages of the injection molding process.

• Recognize the reciprocating screw injection molding method of processing plastic.

• State advantages and disadvantages of injection molding.

Objectives:

• Recognize injection molding equipment including: injection molding machines and components,
  materials handling, dryers, hot runner systems, mold heating and cooling equipment.

• Define shear stresses and identify how they occur.

• Develop an understanding of granulators and the utilization of regrind.

Objectives:

• Understand the injection molding processing stages.

• Identify defects caused by shrinkage of material during the packing and holding stages & explain why hold pressure is so important.

• Explain the importance of mold temperature during the cooling stage, and recognize the 
  defects that can occur.

Objectives:

• Identify the steps in machine start-up and machine shut-down.

• Explain the importance of setting pressures for injection molding production.

• Describe the purging and compound purging processes.

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