Molds & Tooling
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Metallocene linear low density polyethylene metallocene linear low density polyethylene insufficient equipment maintenance during processing（Variant: Color/Material Change Scenario）
Fenómeno del problema
Equipment failures are frequent, product quality fluctuates, and production efficiency is low.
Insufficient maintenance causes equipment precision to decline, plasticization quality to worsen, and energy consumption to increase.In particular, when changing materials or colors, this problem is more prominent and requires key attention.
Análisis de la causa
（1） Equipment runs for a long time without periodic maintenance\
（2） Screw and barrel wear not inspected and replaced in time\
（3） Mold not regularly maintained and polished\
（4） Sensors and instruments not regularly calibrated\
（5） Lubricating oil not replaced on time, mechanical parts worn\
（6） When changing materials or colors, process parameter fluctuations or equipment status changes aggravate this problem
Solución
（1） Establish an equipment preventive maintenance plan, monthly, quarterly and annual maintenance\
（2） Regularly check the screw clearance （not exceeding 0.2mm） and barrel wear\
（3） Perform maintenance and polishing on the mold every 100,000 shots\
（4） Calibrate temperature sensors and pressure sensors quarterly\
（5） Establish equipment records, recording maintenance and repair history\
（6） And do well in cleaning the transition material, paying special attention to parameter stability when changing materials or colors
Conclusión clave
Equipment maintenance is the foundation of stable production, requiring the establishment of a standardized periodic maintenance system and recording system.Targeted preventive measures need to be taken in different production scenarios.
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