Processing Machinery
2 Aufrufe
PBT Refrigerant-Resistant Parts
Problembeschreibung
PBT parts in the air-conditioning refrigeration system degrade in performance in the refrigerant environment, and small-molecule precipitation contaminates the system
Ursachenanalyse
The key to refrigerant-resistant PBT is reducing small-molecule precipitates; twin-screw processing parameters affect small-molecule generation; the SSP solid-state polycondensation process has an obvious effect on small-molecule removal
Lösung
①Select dedicated refrigerant-resistant grades for refrigerant-contact parts; ②Verify by refrigerant immersion; ③Prefer SSP process grades; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability
Wichtigste Erkenntnis
Refrigerant-resistant PBT is the ultimate requirement of small-molecule control; dual control of formulation and process is indispensable; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!