3.2. Molding Techniques

Try these first

1. 1.

   What is injection molding?

   Hint

   Think about how various plastic objects are formed.

2. 2.

   Give an example of a product made by compression molding.

   Hint

   Consider household items that might need to withstand heat.

3. 3.

   What is the primary function of injection molding?

   • To create hollow objects
   • To inject molten plastic into molds
   • To strengthen materials

   Hint

   Recall the definition of injection molding.

4. 4.

   Compression molding typically uses which type of plastic?

   • True
   • False

   Hint

   Consider what materials are best for heat and pressure.

5. 5.

   Design a product using injection molding and justify why this method is preferable over others.

   Hint

   Think about the features of the product and its expected volume.

6. 6.

   Compare the environmental impact of compression molding vs. blow molding in the manufacturing process.

   Hint

   Consider how each method impacts resource use and waste.