Extrusion & Post
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TPE die buildup
Problem Phenomenon
TPE extrusion die buildup
Cause Analysis
Formulation exudates accumulate at the die opening; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry materials and should be confirmed first during troubleshooting
Solution
Regular die opening cleaning; formulation adjustment; temperature optimization; after adjustment, continuously sample 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
Die buildup relies on cleaning and formulation; 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 later
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