Can a single injection mold inject multiple types of plastics?
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- Unsolveddestoon
- 2021-07-11 18:49
The same design drawing (the structure is very simple) needs to be manufactured with two different plastics (to meet the needs of different users)
1. Nylon Plastic
2. Polycarbonate (PC plastic)
Is it possible to inject on the same mold in such a situation? Are there any issues that should be paid attention to when designing a mold?
supplementary question:
There may be some requirements for product accuracy.
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- 1Flooranonymity
- 2021-08-10 09:56
The answer is yes, it is totally possible.
1.But we are not called casting, but called injection molding or injection molding, because the principle is that injection causes the mold cavity to cool and then fix the shape.
In the optimized process, the types, uses, and different materials are gradually refined. This is also the difference in materials mentioned in other answers that lead to different shrinkage rates, and changing different materials will cause changes in dimensions.
2.Of course, in extreme cases, it is not possible to replace materials. For example, some product parts are complicated in structure, and replacing materials with poor fluidity will lead to insufficient injection and filling and then defects. It may also be due to the fact that the fluidity is too good, and there may be phenomena such as undesirable burrs. These are the impact points caused by changes in the original initial design.
1.But we are not called casting, but called injection molding or injection molding, because the principle is that injection causes the mold cavity to cool and then fix the shape.
In the optimized process, the types, uses, and different materials are gradually refined. This is also the difference in materials mentioned in other answers that lead to different shrinkage rates, and changing different materials will cause changes in dimensions.
2.Of course, in extreme cases, it is not possible to replace materials. For example, some product parts are complicated in structure, and replacing materials with poor fluidity will lead to insufficient injection and filling and then defects. It may also be due to the fact that the fluidity is too good, and there may be phenomena such as undesirable burrs. These are the impact points caused by changes in the original initial design.