Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

PPO Batch-to-Batch Color Difference

A

For PPO color difference check thermal history and regrind; verify color powder temperature resistance first; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troublesh...

Processing Machinery color differencethermal historycolor powderregrind

Q

PPO Product Assembly Whitening

A

PPO assembly whitening is a stress alarm, and snap-fit design needs review; after confirming effectiveness, solidify 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 stress whiteningassemblysnap-fitinterference

Q

PPO Low-Temperature Embrittlement

A

PPO toughness decreases at low temperature; low-temperature parts need both verification and toughening; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshootin...

Processing Machinery low-temperature embrittlementimpacttougheningfillet

Q

PPO Product Weight Fluctuation

A

For PPO weight fluctuation check the cushion and check ring; metering stability is fundamental; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar...

Processing Machinery weight fluctuationcushioncheck ringmetering

Q

PPO Glass Fiber Exposure Wearing Molds

A

40% glass fiber eats molds; wear-resistant steel plus regular detection is the response; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar proble...

Molds & Tooling mold wearglass fiberwear-resistant steelgate

Q

PPO Product Stress Detection

A

PPO internal stress relies on solvent immersion detection; visual inspection will miss it; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar prob...

Processing Machinery stress detectionsolvent immersionpolarized lightsampling inspection

Q

PPO Secondary Processing Cracks

A

Anneal before PPO secondary processing; energy input will awaken residual stress; after confirming effectiveness, solidify 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 t...

Processing Machinery secondary processingmachiningultrasonic weldingcracks

Q

PPO Hot Runner Adaptation Problems

A

Hot runner temperature control accuracy determines success or failure for PPO; both blockage and stringing are temperature errors; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a re...

Molds & Tooling hot runnertemperature controlblockagestringing

Q

PPO Alloy Grade Phase Separation

A

For PPO alloy delamination check the process window; stable phase means stable performance; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar pro...

Extrusion & Post alloyphase separationdelaminationprocess window

Q

PPO Dimensional Change After Water Absorption

A

Although PPO water absorption of 0.14% is small, precision fits must still account for it; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar prob...

Production & Quality water absorptiondimensional changeprecision fithumid heat

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