Which of the following is not a plastic forming process described in the material?

Which of the following is not a plastic forming process described in the material?

• A. Blow Moulding
• B. Injection Moulding
• C. Vulcanising
• D. Vacuum Forming

Answer: (C)

Vulcanising is not a plastic forming process. Plastic forming methods shape a material to create parts, such as blow moulding (inflating heated plastic inside a mold to make hollow shapes), injection moulding (injecting molten plastic into a mold), and vacuum forming (softened plastic sheet drawn into a mold by vacuum). Vulcanising, by contrast, is a chemical curing process used on rubber to cross-link polymer chains and improve properties like elasticity and strength; it doesn’t create a new shape through forming. So vulcanising isn’t a plastic forming process.

Vulcanising is not a plastic forming process. Plastic forming methods shape a material to create parts, such as blow moulding (inflating heated plastic inside a mold to make hollow shapes), injection moulding (injecting molten plastic into a mold), and vacuum forming (softened plastic sheet drawn into a mold by vacuum). Vulcanising, by contrast, is a chemical curing process used on rubber to cross-link polymer chains and improve properties like elasticity and strength; it doesn’t create a new shape through forming. So vulcanising isn’t a plastic forming process.