Injection Molding
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Excessively fast screw wear of PET '2079851475616104452 machine
Fenómeno do problema
When processing glass fiber containing PET, the screw and barrel of the '2079851475616104452 machine wear severely, and their life is greatly shortened.
Análise das causas
Glass fiber is extremely abrasive to metal surfaces; the screw and barrel materials are not wear-resistant (not bimetallic treated).
Solução
Use bimetallic screws and barrels (surface hardness above HRC60); reduce glass fiber content; appropriately reduce processing temperature.
Conclusão principal
Reinforced PET processing requires wear-resistant special screws and barrels.
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