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76
Design Course
Designing of Plastic Products for Injection Moulding
Manufacturing Methods and Technologies
by
Double Injection Molding
Double injection molding is a process of producing parts with two different polymers or two different colors during single operation. The process starts with injecting the melt into primary cavity. Then the cavity plate rotates by 180 degree or the primary molding is moved to the secondary cavity. Finally the second color or a different polymer is injected into secondary cavity to fill the space between primary molding and secondary cavity. When filling is complete mold opens and finished product is ejected.
