Processing Machinery
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PMMA Cast Sheet Curing
Fenómeno do problema
Cast PMMA sheets have internal bubbles after curing
Análise das causas
Monomer polymerization heat release is concentrated, and an improper curing temperature profile traps bubbles; During on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based on experience alone.; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solução
Curing follows a stepped heating profile; precise polymerization initiator dosage; degassing treatment; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability.; change only one variable at a time and record parameter changes to facilitate locating effective measures.
Conclusão principal
The cast curing profile is the core of the sheet's internal quality; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.; include this case in the defect archive as a troubleshooting reference for similar future problems.
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