Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

PA6 Drying Temperature 80-100°C

A

The key equipment for PA6 drying is the dehumidifying dryer; hot-air drying may be counterproductive in humid seasons, with the temperature upper limit preventing oxidation and the lower limit ensuring efficiency; after confirming effectiveness, fix the parameters and practices into the work inst...

Material Drying PA6；drying temperature；80-100°C；dehumidifying drying；oxidation

Q

PA6 Drying 0.2% Red Line

A

0.2% moisture content is the lifeline of PA6 processing; hydrolysis damage is irreversible and difficult to detect by appearance, so drying must be quantified by actual measurement rather than estimated by experience; after confirming effectiveness, fix the parameters and practices into the work ...

Material Drying PA6；drying；0.2%；hydrolysis；dehumidifying drying；Karl Fischer

Q

PA66 hot water hydrolysis

A

Material selection for high-temperature water conditions must consider hydrolysis life; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar ...

Material Drying PA66hydrolysishot waterhydrolysis resistance

Q

PA66 fatigue cracks

A

Snap-fit fatigue relies on fillet design and moisture conditioning toughness guarantee; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar ...

Material Drying PA66snap-fitfatiguemoisture conditioning

Q

PA66 weld line fusion

A

Welding sealing is guaranteed by interface state and energy director design; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems

Material Drying PA66ultrasonic weldingsealingenergy director

Q

PA66 dimensional out-of-tolerance

A

Dimensional consistency relies on parameter locking plus SPC monitoring; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems

Material Drying PA66dimensional out-of-toleranceSPCshrinkage

Q

PA66 stress whitening

A

Stress whitening indicates insufficient toughness reserve, moisture conditioning and toughening treat the symptom; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence; include this case in the defect archive as a troubleshooting refere...

Material Drying PA66stress whiteningtoughnesstoughening

Q

PA66 internal stress cracking

A

Delayed cracking requires prevention in three aspects: structure, process, and assembly; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar...

Material Drying PA66internal stressdelayed crackingmoisture conditioning

Q

PA66 yellowing control

A

Yellowing is investigated and temperature reduced segment by segment in the drying section and molding section; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence; include this case in the defect archive as a troubleshooting reference...

Material Drying PA66yellowingthermal oxidationsegmented troubleshooting

Q

PA66 silver streak and bubble differentiation

A

Identify the cause of silver streaks first then treat accordingly, air shot is the fastest means; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequen...

Material Drying PA66silver streakcauseair shot

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