Molding Process
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PPO High-Flow Grade Automotive Parts
Problem Phenomenon
【Problem Phenomenon】Automotive large thin-walled parts are difficult to fill; standard PPO flowability is insufficient
Cause Analysis
PPO has high-flow grades (EXT115/EXT130, PX2611/PX2622) suitable for automotive industry parts; improved oil-resistant types cover engine periphery
Solution
Select high-flow grades for large thin-walled automotive parts; select improved oil-resistant types for oil-resistant occasions; after flowability improvement, pay attention to flash management; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
PPO high-flow grades unlock large thin-walled automotive parts; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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