Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

LLDPE die cleaning

A

Die buildup cleanup plus PPA; 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 LLDPEdiebuildupstreaks

Q

LLDPE winter raw material

A

Preheat raw material in winter; 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 LLDPEwinterpreheatingplasticization

Q

LLDPE color change cleaning

A

Color change relies on production scheduling plus disassembly and cleaning; 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 LLDPEcolor changecleaningdie

Q

LLDPE thermocouple calibration

A

Multi-line consistency relies on unified metrology; 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 LLDPEthermocouplecalibrationunification

Q

LLDPE actual melt measurement

A

Quality is based on the measured melt temperature; 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 LLDPEactual melt measurementcorrectionbaseline

Q

LLDPE screw speed

A

LLDPE speed management is stricter 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

Processing Machinery LLDPEscrew speedsharkskinPPA

Q

LLDPE back pressure control

A

LLDPE back pressure should be low to prevent gel; 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 LLDPEback pressuregelshear heat

Q

LLDPE color masterbatch dispersion

A

Select color masterbatch by melt index matching; 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 LLDPEcolor masterbatchdispersionmelt index

Q

LLDPE residence management

A

Manage LLDPE residence by the 30-minute rule; 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 LLDPEresidencegelshutdown

Q

LLDPE startup procedure

A

When restarting after a shutdown, discharge residual material first; 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 LLDPEstartuppurgegel

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