Blow molding processes are an ideal way of creating a range of different hollow plastic items. With air pressure, it is possible to inflate the plastic into its mold cavity. This process is similar to what the glass industry uses. There is a range of plastic items that use the technique. There are a few kinds, including injection blow molding, extrusion, and injection stretch blow molding.
About the Molding Process
First, the manufacturer begins with molten plastic for the base of the process, no matter the part you are making. Depending on the process, it might be a Parison or a Preform.
Next, the company will inflate the tube to the correct location. There are a few processes for that process, including injection blow molding, extrusion blow molding, as well as injection stretch blow molding.
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