Injection Molding
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Incomplete Cleaning of PBT '2079851475616104452 Machine Barrel
Fenómeno do problema
Cross-contamination occurs when switching from PBT to other materials or from other materials to PBT.
Análise das causas
PBT is incompatible with other resins, and mixing produces phase separation; the residual material degrades and affects the quality of the new material.
Solução
Use a special purging material for full cleaning; clean with staged temperatures; disassemble the nozzle to clean dead corners.
Conclusão principal
PBT switching requires a strict cleaning procedure.
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