Material Drying
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Pits, streaks, or scratches on the surface of blow molded containers
Problem Phenomenon
Pits, streaks, or scratches appear on the surface of blow molded containers, poor surface quality
Cause Analysis
Rough mold cavity surface
Parison temperature too low, insufficient surface flow
Compressed air contains oil or moisture
Poor mold venting
Defects on the parison surface
Solution
Polish the mold cavity
Appropriately increase parison temperature
Ensure clean compressed air
Improve mold venting
Control parison quality
Key Takeaway
2079851475616104457 surface needs to start from mold and parison
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