Extrusion & Post
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PSU Composite Material Interface
Problem Phenomenon
The composite interface between PSU and other materials bonds poorly; delamination failure; composite structure advantages not realized.
Cause Analysis
Compatibility between PSU surface characteristics and composite materials; insufficient interface treatment; mismatched molding temperature and pressure; thermal expansion differences.; During on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based solely on experience
Solution
①Interface compatibility assessment; ②Surface treatment enhancement; ③Process parameter matching; ④Interface strength testing.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
The PSU composite material interface is the key to success; treatment and process are both emphasized; test verification is indispensable.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence
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