Extrusion & Post
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TPE Extrusion Shear
Fenómeno do problema
TPE extruded products have lower elasticity than expected
Análise das causas
Excessive extrusion shear damages molecular chains; 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
Solução
Low-shear extrusion screw; speed control; actual melt temperature measurement; 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 to facilitate locating effective measures
Conclusão principal
TPE extrusion outlet takes the low-shear route; 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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