Extrusion & Post
10 Aufrufe
PMMA Annealing Process Missing
Problembeschreibung
Products crack at the client side after leaving the factory.
Ursachenanalyse
Residual stress is not eliminated and is released and cracks during transportation/use.
Lösung
①Anneal at 70~80℃ for 2~4 hours; ②Slow cooling after annealing; ③Full inspection of stress-sensitive parts with polarized light.
Wichtigste Erkenntnis
Annealing = the factory insurance for transparent structural parts.
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