Problem & Solution

Q

Metallocene linear low density polyethylene blown film wrinkles（Variant: Startup Commissioning Scenario）

A

Wrinkles are caused by uneven thickness or unbalanced hauling, and need to be solved from thickness control, hauling and collapsing frame adjustment.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film wrinklesuneven thicknesshaul-off rollscollapsing framecooling line

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene large barrel temperature fluctuations during processing（Variant: Mass Production Scenario）

A

Barrel temperature fluctuation is caused by heating or temperature control system failures, requiring regular inspection and maintenance of heater bands, thermocouples and temperature control instruments.Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery temperature fluctuationheater bandthermocoupletemperature control instrumentPID parameters

Q

Metallocene linear low density polyethylene film blocking/poor opening（Variant: Mass Production Scenario）

A

Film blocking is caused by surface tension and temperature, and needs to be solved by adding anti-blocking agents and controlling winding conditions.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film blockinganti-blocking agentwinding temperaturewinding tensionslip agent

Q

Metallocene linear low density polyethylene blown film wrinkles（Variant: Strengthened Measures）

A

Wrinkles are caused by uneven thickness or unbalanced hauling, and need to be solved from thickness control, hauling and collapsing frame adjustment.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film wrinklesuneven thicknesshaul-off rollscollapsing framecooling line

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene insufficient equipment maintenance during processing（Variant: Seasonal Change Scenario）

A

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.

Molds & Tooling equipment maintenancepreventive maintenancescrew clearancemold maintenancesensor calibration

Q

Metallocene linear low density polyethylene blown film uneven thickness（Variant: Seasonal Change Scenario）

A

Film thickness unevenness is caused by die gap, temperature or cooling unevenness, and needs to be solved from mold precision and process stability.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film thicknessdie gaptemperature uniformityair ring coolinghaul-off stability

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene insufficient equipment maintenance during processing（Variant: Startup Commissioning Scenario）

A

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.

Molds & Tooling equipment maintenancepreventive maintenancescrew clearancemold maintenancesensor calibration

Q

Metallocene linear low density polyethylene blown film uneven thickness（Variant: Startup Commissioning Scenario）

A

Film thickness unevenness is caused by die gap, temperature or cooling unevenness, and needs to be solved from mold precision and process stability.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film thicknessdie gaptemperature uniformityair ring coolinghaul-off stability

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene large barrel temperature fluctuations during processing（Variant: Color/Material Change Scenario）

A

Barrel temperature fluctuation is caused by heating or temperature control system failures, requiring regular inspection and maintenance of heater bands, thermocouples and temperature control instruments.Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery temperature fluctuationheater bandthermocoupletemperature control instrumentPID parameters

Q

Metallocene linear low density polyethylene film blocking/poor opening（Variant: Color/Material Change Scenario）

A

Film blocking is caused by surface tension and temperature, and needs to be solved by adding anti-blocking agents and controlling winding conditions.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film blockinganti-blocking agentwinding temperaturewinding tensionslip agent

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