Processing Machinery
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PMMA surface hardness
Fenómeno del problema
PMMA products have many surface scratches during use
Análisis de la causa
PMMA surface hardness is lower than glass, and daily contact easily produces scratches; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry literature and should be confirmed first during troubleshooting
Solución
Apply surface hardening coating treatment; use a soft cloth for cleaning; add protective film to display parts; 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
Conclusión clave
PMMA scratch prevention relies on hardening coatings and usage management; 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 problems in the future
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