Extrusion & Post
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PMMA Annealing Process Missing
Fenómeno do problema
Products crack at the client side after leaving the factory.
Análise das causas
Residual stress is not eliminated and is released and cracks during transportation/use.
Solução
①Anneal at 70~80℃ for 2~4 hours; ②Slow cooling after annealing; ③Full inspection of stress-sensitive parts with polarized light.
Conclusão principal
Annealing = the factory insurance for transparent structural parts.
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