Problem & Solution

Practical answers to common plastic material challenges

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Q

LLDPE Dimensional Drift

A

Dimensions are based on post-aging values; After confirming effectiveness, solidify 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

Processing Machinery LLDPEdimensionagingpost-crystallization

Q

LLDPE Black Speck

A

Black specks rely on disassembly cleaning and monitoring; After confirming effectiveness, solidify 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

Processing Machinery LLDPEblack speckdead spotdisassembly cleaning

Q

LLDPE Yellowing

A

For yellowing, check temperature and antioxidant; After confirming effectiveness, solidify 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

Processing Machinery LLDPEyellowingoxidationantioxidant

Q

LLDPE Creep Deformation

A

Stacking deformation relies on structure and grade; After confirming effectiveness, solidify 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

Processing Machinery LLDPEcreepstackingrigidity

Q

LLDPE Stress Cracking

A

For stress cracking, select material by ESCR; After confirming effectiveness, solidify 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

Processing Machinery LLDPEESCRstress crackingverification

Q

LLDPE poor heat seal

A

Heat seal relies on parameter calibration; 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

Processing Machinery LLDPEheat sealparameterssampling

Q

LLDPE opening property

A

Opening property relies on additives and tension; 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

Processing Machinery LLDPEopening propertyslip agentcorona

Q

LLDPE thickness band

A

Thick-thin bands rely on die lip and automatic air ring; 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

Processing Machinery LLDPEthickness banddie lipair ring

Q

LLDPE transverse tear

A

Transverse tear relies on blow-up ratio balance; 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

Processing Machinery LLDPEtransverse tearblow-up ratioblending

Q

LLDPE machine-direction strength

A

Machine-direction strength relies on draw ratio design; 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

Processing Machinery LLDPEmachine-direction strengthdraw ratiograde

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