Material Drying
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TPE Hardness-Graded Drying
Problem Phenomenon
Soft TPE pellets stick together after high-temperature drying
Cause Analysis
Soft TPE has a low melting point; high-temperature drying softens the pellet surface and causes sticking; 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 information and should be confirmed first during troubleshooting
Solution
Soft TPE dried at 60-80℃; hard material at 80-100℃; time 2-3 hours; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
TPE drying temperature is graded by hardness; after confirming effectiveness, solidify 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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