Processing Machinery
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TPE Barrel Temperature Zoning
Problem Phenomenon
TPE plasticization is uneven and the melt fluctuates
Cause Analysis
The barrel temperature gradient is unreasonable; 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
Barrel gradient: rear zone 160℃, middle zone 185℃, front zone 205℃; back pressure at the lower limit; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
The TPE temperature gradient is gentle and the back pressure is low; 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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