The Difference Between Plastic Injection Molding And Blow Molding

We use many plastic products in our lives. Plastic injection molding and blow molding are generally used to make plastic products. What is the difference between them?

The difference between plastic injection molding and blow molding

1. Different processes

Plastic blow molding: Blow molding uses gas pressure to inflate the hot parison du closed in the mold into a hollow product, or the tube parison is inflated into a tube film without a mold.

Plastic injection molding: injection molding is to melt plastic materials and then inject them into the film cavity to form.

2. Different raw materials

Plastic blow molding: The raw materials for blow molding are usually polyethylene, polyvinyl chloride, polypropylene, polystyrene, thermoplastic polyester, polycarbonate, polyamide, cellulose acetate, and polyacetal resin, among which polyethylene Used the most.

Plastic injection molding: The raw material for injection molding is usually thermoplastic or thermoset.

3. Different applications

Plastic blow molding: Blow molding is widely used in industries such as bottles, jars, baby products, and sporting goods.

Plastic injection molding: injection molding is widely used in mobile phones, laptop computers, a variety of plastic shells, communications, micro motors, computers, electrical appliances, electronics, toys, watches, lighting, motorcycles, and other industries.

GoodTech is a top 10 plastic injection molding manufacturer in China, we make a big range of sized plastic parts with from 45 tons to 2000 tons molding machines. If you need custom plastic injection molding, please contact us!