Extrusion & Post
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PVB Acoustic Film Process
Problem Phenomenon
PVB acoustic film extrusion quality is unstable, sound insulation performance is inconsistent.
Cause Analysis
PVB acoustic film special formula; higher thickness precision requirements; multilayer structure; performance testing.; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based solely on experience
Solution
①Dedicated process management for acoustic film; ②Tightened thickness precision control; ③Multilayer structure quality; ④Sound insulation performance testing.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PVB acoustic film is a functional product; process precision requirements are higher; performance verification is the basis for delivery.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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