Molds & Tooling
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PMMA Product Optical Distortion
Fenómeno del problema
Objects appear deformed through transparent window parts; optical testing shows distortion exceeding the standard.
Análisis de la causa
Uneven cooling and asymmetric stress distribution cause slight surface shape deformation of products; abrupt wall thickness changes and improper gate position amplify distortion.; During on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based on experience alone.
Solución
①Balance cooling and mold temperature; ②optimize wall thickness transitions; ③adjust gate position; ④anneal to stabilize surface shape.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability.
Conclusión clave
Optical distortion is a surface shape precision problem; symmetric cooling and structural design are the basis for ensuring window part quality.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.
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