Injection Molding
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PPSU product flash
Problem Phenomenon
PPSU '2079851475616104452 flash is tough and difficult to remove.
Cause Analysis
Although PPSU has high viscosity, it can still overflow from the parting line when the injection force is large.
Solution
Increase clamping force; precision parting line; three-stage injection to reduce peak pressure.
Key Takeaway
PPSU flash control relies on mold and equipment precision.
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