Processing Machinery
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PVDF Product Material Change Cleaning
Problem Phenomenon
Material change contamination problems.
Cause Analysis
PVDF decomposition residues cause corrosion and contamination; cleaning must be thorough.; During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience; This mechanism has been repeatedly verified by industry materials, and it should be confirmed first during troubleshooting
Solution
①Purge with PE cleaning material; ②thorough cleaning; ③verify the first piece; ④record the process.; After adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability; Change only one variable at a time and record parameter changes, so as to locate effective measures
Key Takeaway
Purging with PE for PVDF material change is standard practice.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; Include this case in the defect archive as a reference for troubleshooting similar problems in the future
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