Injection Molding
3 Aufrufe
Stress corrosion cracking of pump casings
Problembeschreibung
Cracks and leakage appear in chemical pump casings
Ursachenanalyse
Large internal stress from injection, contact with chemicals (ESC), and abrupt wall thickness changes
Lösung
Annealing 140C 2h, uniform wall thickness transition, select high molecular weight
Wichtigste Erkenntnis
Annealing is an effective means to eliminate stress
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