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Makalelere Göz At →
1506 soru
Q
Periodic PVA surface corrugations
A
Corrugations are caused by unstable injection; equipment overhaul and PID control are the key
Injection Molding PVAsurface corrugationinjection stabilityequipment overhaulPID control
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Q
PVA surface tiger-skin pattern
A
Tiger-skin pattern is caused by unstable injection front; multi-stage injection and high mold temperature are the key
Injection Molding PVAtiger-skin patterninjection speedmulti-stage injectionmold temperature control
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Q
Obvious PVA surface color difference
A
Color difference is caused by uneven dispersion and orientation; masterbatch method and stable processing are the key
Injection Molding PVAcolor differencecolor masterbatch dispersionpigment orientationtemperature stability
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Q
PVA surface orange peel pattern
A
Orange peel pattern is caused by rapid cooling and solidification; raising mold temperature and holding pressure are the key
Injection Molding PVAorange peel patternmold temperatureholding pressuresurface solidification
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Q
Severe PVA internal stress concentration
A
Internal stress is caused by fast injection and uneven cooling; speed reduction, uniform cooling and annealing are the key
Injection Molding PVAinternal stressorientation stressannealing treatmentuniform cooling
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Q
Unstable weight of PVA injection molded products
A
Product weight stability depends on shot volume precision and holding consistency
Injection Molding PVA injectionweight fluctuationshot volumeholding consistencyV/P switchover
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Q
PVA injection cold slug marks
A
Cold slug marks are caused by solidified residual material in the nozzle; raising nozzle temperature and cold slug well design are the key
Injection Molding PVA injectioncold slug marknozzle temperaturecold slug wellinjection pressure
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Q
PVA '2079851475616104452 flow marks
A
Flow marks are caused by unstable injection front and rapid cooling; multi-stage injection and high mold temperature are the key
Injection Molding PVA injectionflow markinjection speedmold temperaturegate area
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Q
PVA '2079851475616104452 sink marks
A
Sink marks are caused by insufficient holding and wall thickness differences; high-pressure holding and multiple gates are the core countermeasures
Injection Molding PVA injectionsink markholding pressurewall thickness differencegate design
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Q
Unbalanced multi-cavity filling in PVA '2079851475616104452
A
Unbalanced multi-cavity filling is caused by runner design; balanced runner and mold flow analysis are the key
Injection Molding PVA injectionmulti-cavity balancerunner designgate sizemold flow analysis
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