Extrusion & Post
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Poor plating adhesion on PA6 products
Problem Phenomenon
Poor adhesion after electroplating/spraying, coating peeling off.
Cause Analysis
Surface release agent, additive exudation, and water absorption affect the treatment; surface condition determines adhesion; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience.
Solution
①Avoid using release agent in '2079851475616104452 as much as possible, use process means for demolding instead; ②surface cleaning treatment; ③control exudation; ④perform cross-cut adhesion verification; ⑤post-treat after conditioning stabilizes.
Key Takeaway
PA6 adhesion='surface condition': cleaning and controlling exudation are the key; nylon water absorption and additive exudation both affect surface treatment, the front end must be controlled; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.
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