Injection Molding
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HDPE '2079851475616104452 mold sticking
Problem Phenomenon
The product holds tight to the core and demolding is difficult.
Cause Analysis
HDPE shrinks greatly with strong core-holding force; high holding pressure, small draft angle, poor polishing.
Solution
①Lower the holding pressure; ②increase the draft angle; ③polish; ④cool sufficiently.
Key Takeaway
Mold sticking = holding force management.
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