Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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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 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 Warpage Correction

A

PPO warpage correction treats the symptom; process and structural prevention is the root; 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 probl...

Processing Machinery warpage correctionheat settingpreventionstructure

Q

PPO Product Cracking Delayed Failure

A

PPO delayed cracking is a residual stress debt; annealing plus assembly design prevents 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 pro...

Processing Machinery delayed crackingresidual stresscreepannealing

Q

PPO Foamed Part Cell Defects

A

PPO foaming cells depend on dispersion and temperature, and the expansion ratio must not be greedily high; 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 troubleshoot...

Processing Machinery foamingcellsdispersionexpansion ratio

Q

PPO Chemical Resistance Failure

A

PPO fears aromatic hydrocarbons, halogenated hydrocarbons and oils; switch to GTX alloy for chemical resistance occasions; 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 ...

Processing Machinery chemical resistanceswellingaromatic hydrocarbonsGTX

Q

PPO Brittleness and Notch Sensitivity

A

PPO is notch-sensitive; rounding plus annealing is double insurance against cracking; 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 ...

Processing Machinery brittlenessnotchfilletstress concentration

Q

PPO Black Specks and Carbonization Contamination

A

For PPO black specks first check residence-discolored material, then check dead spots and regrind; 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 simi...

Processing Machinery black speckscarbonizationdead spotsregrind

Q

PPO Internal Voids

A

PPO voids are a cut-off of compensation supply, and wall thickness uniformity comes before holding pressure adjustment; 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...

Processing Machinery voidsthick wallcompensationcooling

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