Extrusion & Post
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PARA Metallization
Problem Phenomenon
PARA metallization coating bonding is poor; surface state and pretreatment.
Cause Analysis
PARA metallization surface energy; glass fiber influence; roughening and activation; coating stress.; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blind machine adjustment based only on experience
Solution
①Surface roughening and activation treatment; ②Glass fiber surface management; ③Coating process matching; ④Bond strength testing.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
Surface engineering of PARA metallization is key; roughening and activation are standard procedures; testing ensures quality.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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