Processing Machinery
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PC screw wear monitoring
Problembeschreibung
After glass fiber PC production for a period of time, black specks increase, plasticization fluctuates, and back pressure stability deteriorates
Ursachenanalyse
Continuous wear of glass fiber on the screw and barrel increases the gap and causes uneven plasticization; worn metal particles mix into the melt forming black specks and catalyzing degradation; equipment condition slowly deteriorates and is not easily noticed
Lösung
①Establish a regular screw gap inspection system; ②Glass fiber material dedicated bimetallic screw and barrel; ③Replace promptly when wear exceeds limits to avoid running with faults；After adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Wichtigste Erkenntnis
Equipment wear of glass fiber PC is a chronic variable; regular gap measurement and dedicated wear-resistant configuration are necessary investments for long-term stability；After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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