Problem & Solution

Practical answers to common plastic material challenges

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Insufficient PU mixing

Processing Machinery PU insufficient mixing screw mixing section kneading blocks side feeding

Difficult PU purging

Processing Machinery PU difficult purging adhesion PE flushing special purging compound

PU material changeover residue

Processing Machinery PU changeover residue purging material screw disassembly dead zone cleaning

Carbonized Black Specks Inside EVOH

Processing Machinery EVOHinternal black speckthermal carbonizationscrew cleaningtemperature control

Poor EVOH Plasticization

Processing Machinery EVOHpoor plasticizationscrew compression ratioshear rateprocessing temperature

Unmelted Particles Inside EVOH

Processing Machinery EVOHunmelted particleplasticizing capacityprocessing temperaturescrew mixing

Insufficient EVOH Mixing

Insufficient mixing is caused by improper screw design; increasing mixing section is key

Processing Machinery EVOHinsufficient mixingscrew mixing sectionkneading blockside feeding

EVOH Material Changeover Residue

Processing Machinery EVOHchangeover residuepurging compoundscrew disassemblydead zone cleaning

Difficult EVOH Purging

Processing Machinery EVOHpurging difficultyadhesionPE flushingdedicated purging compound

EVA internal black specks carbonization

Processing Machinery EVA internal black specks thermal carbonization screw cleaning temperature control

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