Extrusion & Post
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PVC Wire Extrusion
Problem Phenomenon
PVC wire extrusion surface has particles and breakdown voltage is unqualified
Cause Analysis
Poorly plasticized particles and impurities become insulation weak points; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solution
Ensure plasticization temperature; densify the filter screen; raw material cleanliness management; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Key Takeaway
Wire material quality depends on plasticization and cleanliness; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future
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