The difference between overmold and double injection is: different references, different usage, different focus
I. Different references
1, overmold: secondary injection molding.
2, double injection: two-color mold.
Second, the process is different
1, overmold: secondary injection molding: is a special plastic molding process, also known as overmold or overmold. It is similar to the two-color molding process, but with the two-color molding process has relatively large differences. It is a kind of plastic raw materials in a plastic mold molding, the molded parts out, into the secondary molding mold again into the same or another kind of plastic material molding process.
2, double injection: two-color mold that is two plastic materials in the same injection molding machine, divided into two molding, but the product is only out of the mold once the mold. Generally this molding process is also called double injection, usually completed by a set of molds, and need a special two-color injection molding machine.
Three, the focus is different
1, overmold: focusing on two injection molding.
2, double injection: focus on the two injection at the same time.
Baidu Encyclopedia - secondary injection molding
Baidu Encyclopedia - two-color molds