Problem & Solution

Practical answers to common plastic material challenges

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Q

LLDPE recycled material utilization

A

High-ratio utilization of LLDPE recycled material relies on structural design; the three-layer coextrusion inner layer is the best destination for recycled material; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LLDPE;recycled material;30%;three-layer coextrusion;ratio

Q

LLDPE wire and cable

A

LLDPE cable sheath is a balance of performance and process; the ESCR advantage is worth the process investment; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LLDPE;cable sheath;ESCR;carbon black;PPA

Q

LLDPE metallocene grade

A

mLLDPE is the performance upgrade route for stretch film; the strength leap requires equipment matching as a prerequisite; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LLDPE;metallocene;mLLDPE;strength;stretch film

Q

LLDPE stretch film casting

A

Casting three-layer coextrusion is the mainstream process for LLDPE stretch film; pre-stretch performance is the core indicator of machine-use film; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post LLDPE;stretch film;casting;three-layer coextrusion;pre-stretch

Q

LLDPE haul-off stability

A

Thickness stability relies on haul-off closed loop; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Extrusion & Post LLDPEhaul-offclosed loopthickness measurement

Q

LLDPE casting roll temperature

A

Casting roll contact relies on roll temperature and air knife; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Extrusion & Post LLDPEcastingchill rollair knife

Q

LLDPE die temperature

A

Die temperature zone uniformity is the foundation; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Extrusion & Post LLDPEdie temperaturecastinguniformity

Q

LLDPE frost line management

A

Frost line stability is a sign of LLDPE film consistency; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future.

Extrusion & Post LLDPE frost line air ring thickness

Q

LLDPE die gap

A

LLDPE die gap must be larger than LDPE; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future.

Extrusion & Post LLDPE die gap shear bubble

Q

LLDPE barrel temperature

A

The LLDPE temperature gradient ensures uniform plasticization; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future.

Extrusion & Post LLDPE barrel temperature gradient calibration

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