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일반적인 플라스틱 재료 문제에 대한 실질적인 답변

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Q

TPU melt temperature 180-220℃

A

The temperature window of TPU is wider than PVC but equally sensitive; fine grading by hardness within the 180-220℃ range; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery TPU；melt temperature；180-220℃；depolymerization；hardness

Q

TPU rapid moisture regain after drying

A

The moisture regain speed of TPU requires the insulated hopper to become standard; the 30-minute time limit is a discipline the workshop must implement; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying TPU；moisture regain；hopper dryer；30 minutes；enclosed

Q

TPU drying time 3-4 hours

A

The 3-4 hours of TPU drying is the physical lower limit for deep moisture diffusion; compressing time turns drying into surface work; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying TPU；drying time；3-4 hours；deep moisture；diffusion

Q

TPU drying temperature graded by hardness

A

TPU drying temperature must match hardness; the higher the hardness the higher the temperature, and a one-size-fits-all parameter will inevitably fail on one side; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying TPU；drying temperature；hardness grading；agglomeration；yellowing

Q

TPU drying 0.05% and defect rate

A

The drying red lines of TPU are clearly graded: general 0.05%, '2079851475616104452 0.02%, extrusion 0.02%; compressing drying time is opening the gate to the defect rate

Material Drying TPU；drying；0.05%；40%；grading

Q

TPU drying 0.02% red line

A

0.02% is the golden red line for TPU '2079851475616104452; drying to the moisture content specification rather than the time specification is the core proposition of professional manufacturers such as Foster; after confirming effectiveness, fix the parameters and practices into the work instructi...

Material Drying TPU；drying；0.02%；hydrolysis；molecular weight

Q

TPU product storage deformation

A

Elastomer storage must prevent pressure and heat; inventory management affects shipping quality; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar pro...

Processing Machinery TPU；storage；deformation；creep；stacking；temperature

Q

TPU product shutdown handling

A

Shutdown management prevents degradation; cleaning and lowering heat preservation are standard operations; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for s...

Processing Machinery TPU；shutdown；black speck；degradation；cleaning；heat preservation

Q

TPU product processing temperature window

A

Narrow-window materials have high requirements for equipment consistency; unifying the actual measurement benchmark is the key; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery TPU；temperature window；machine；consistency；calibration；process card

Q

TPU product UV aging

A

UV aging selection is prioritized; aliphatic TPU is the choice for outdoor transparent applications; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery TPU；UV aging；yellowing；aliphatic；aromatic；stabilizer

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