Problem & Solution

Practical answers to common plastic material challenges

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Q

PET acetaldehyde exceeding standard

A

Acetaldehyde is a hygiene indicator for water bottles; temperature control is fundamental; 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 ...

Processing Machinery PETacetaldehydeodorwater bottle

Q

PET screen change fluctuation

A

Screen change fluctuations are controlled with a continuous screen changer plus isolation and cutting; 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 simil...

Processing Machinery PETscreen changepressure fluctuationisolation

Q

PET filter screen clogging

A

Filter screen pressure differential trend management is a means to stabilize output; 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...

Extrusion & Post PETfilter screenpressure differentialscreen change

Q

PET die opening buildup

A

Die opening buildup is the accumulation of precipitates; cleaning plus temperature management; 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 probl...

Processing Machinery PETdie opening buildupprecipitationstreaks

Q

PET melt fracture

A

Melt fracture is the speed upper limit; optimize the flow channel before increasing speed; 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 ...

Extrusion & Post PETmelt fracturesharkskinshear

Q

PET thickness fluctuation

A

Longitudinal thickness relies on metering stability and online 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

Processing Machinery PETthicknessmetering pumpclosed loop

Q

PET sheet scratches

A

Scratch prevention of high-gloss sheet relies on roll surface and environmental hygiene; 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...

Extrusion & Post PETscratchroll surfacedust prevention

Q

PET sheet static electricity

A

Static control relies on ion neutralization plus humidity management; 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 PETstatic electricityionizing airhumidity

Q

PET uneven winding

A

Winding quality depends on thickness uniformity and tension control; 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 PETwindingtensioncorrection

Q

PET sheet warpage

A

Sheet warpage is a manifestation of uneven cooling on both sides; 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 PETsheetwarpagecooling

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