Blow Molding
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Uneven Wall Thickness of LDPE Blow Molded Bottles
Problem Phenomenon
The bottle body is locally thin and ruptures on dropping.
Cause Analysis
Improper parison wall thickness program, sagging, and mold pinch-off material trapping.
Solution
①Optimize the wall thickness program; ②control sagging; ③repair the mold; ④thickness monitoring.
Key Takeaway
The wall thickness program is the core.
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