Processing Machinery
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PPO Molding Cycle Reference
Fenómeno del problema
【Problem Phenomenon】PPO molding cycle setting lacks basis, and efficiency and quality are difficult to balance
Análisis de la causa
Junlong MPPO reference molding cycle is 33 seconds; too short a cycle means insufficient cooling and deformation, too long wastes capacity and increases melt heat history; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solución
Start from the grade reference cycle and optimize according to wall thickness; ensure demolding strength in the cooling section; do not compress the cycle at the expense of quality; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Conclusión clave
PPO cycle has a reference baseline; compressing the cycle must first ensure cooling 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 subsequent similar problems
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