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المشاكل والحلول

إجابات عملية على التحديات الشائعة في مواد البلاستيك

2025 سؤال
Q
Product shows multiple defects (silver streaks, burnt, short shot, etc.)
A
Barrel temperature needs to be stably set according to the material recommended range
Processing Machinery barrel temperaturetemperature controlplasticizationcellulose acetate butyrate
Q
PVA internal black speck carbonization
A
Black specks are caused by thermal carbonization and carbon deposit; temperature reduction and regular cleaning are the key
Processing Machinery PVAinternal black speckthermal carbonizationscrew cleaningtemperature control
Q
Poor PVA plasticization
A
Poor plasticization is caused by improper screw design; optimizing the screw and raising temperature are the key
Processing Machinery PVApoor plasticizationscrew compression ratioshear rateprocessing temperature
Q
PVA internal unmelted particles
A
Unmelted particles are caused by insufficient plasticizing; raising temperature and reducing feeding are the key
Processing Machinery PVAunmelted particleplasticizing capacityprocessing temperaturescrew mixing
Q
Insufficient PVA mixing
A
Insufficient mixing is caused by improper screw design; increasing the mixing section is the key
Processing Machinery PVAinsufficient mixingscrew mixing sectionkneading blockside feeding
Q
Difficult PVA purging
A
Difficult purging is caused by strong PVA adhesion; PE flushing and temperature reduction are the key
Processing Machinery PVAdifficult purgingadhesionPE flushingdedicated purging compound
Q
PVA material changeover residue
A
Changeover residue is caused by incomplete cleaning; full cleaning and disassembly are the key
Processing Machinery PVAchangeover residuepurging materialscrew disassemblydead zone cleaning
Q
Internal black speck carbonization of PU
A
Black specks are caused by thermal carbonization and carbon deposits; temperature reduction and regular cleaning are key
Processing Machinery PU internal black specks thermal carbonization screw cleaning temperature control
Q
Poor PU plasticization
A
Poor plasticization is caused by improper screw design; optimizing screw and raising temperature are key
Processing Machinery PU poor plasticization screw compression ratio shear rate processing temperature
Q
Internal unmelted particles of PU
A
Unmelted particles are caused by insufficient plasticizing; increasing temperature and reducing feeding are key
Processing Machinery PU unmelted particles plasticizing capacity processing temperature screw mixing
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