Processing Machinery
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HDPE pipe die head clogging and uneven discharge
Fenómeno del problema
The pipe wall thickness fluctuates periodically, and disassembly inspection finds material buildup and local clogging inside the die head.
Análisis de la causa
Degraded material and impurities gradually accumulate in the die head flow channel, disturbing the discharge distribution; long-term high-temperature operation and many raw material impurities are inducements for accelerated accumulation.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
Solución
①Regularly disassemble and clean the die head to remove buildup; ②check raw material cleanliness; ③optimize temperature to reduce degradation; ④install filtration devices to intercept impurities.; after adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability
Conclusión clave
Die head clogging is a progressive problem; regular disassembly and cleaning and source cleanliness management are more economical than after-the-fact emergency repair, and it is recommended to establish a disassembly and cleaning cycle record.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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