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Problem & Solution

Practical answers to common plastic material challenges

11636 questions
Q
Material Changeover Residue of CMC
A
Changeover residue is caused by incomplete cleaning; thorough cleaning and disassembly are the key
Processing Machinery CMCchangeover residuepurging materialscrew disassemblydead corner cleaning
Q
Fast UV Aging of CMC
A
Fast UV aging is caused by photo-oxidation; UV absorber and HALS are the key
Material Analysis CMCUV agingUV absorberHALSradical scavenging
Q
Unstable Shrinkage of CMC
A
Unstable shrinkage is caused by batch differences and temperature fluctuations; raw material and temperature control are the key
Material Analysis CMCshrinkagebatch differencetemperature control stabilitycrystallization consistency
Q
Coarse Internal Crystallization of CMC
A
Coarse crystallization is caused by slow cooling; fast cooling and nucleating agent are the key
Molding Process CMCcoarse crystallizationspherulite refinementnucleating agentcooling rate
Q
Unstable Weight of CMC Injection Molded Products
A
Product weight stability depends on injection amount accuracy and holding consistency
Injection Molding CMC injectionweight fluctuationinjection amountholding consistencyV/P switchover
Q
Poor Weather Resistance of CMC
A
Poor weather resistance is caused by photo-oxidation; UV+HALS+antioxidant triple protection is the key
Material Analysis CMCweather resistanceUV absorberHALSphoto-oxidation
Q
Out-of-Roundness of CMC Extruded Pipe Exceeding Standard
A
Out-of-roundness is caused by uneven cooling and clamping; annular cooling and uniform haul-off are the key
Extrusion & Post CMC pipeout-of-roundnessannular coolingvacuum sizinguniform haul-off
Q
Large Current Fluctuation of CMC Extruder
A
Current fluctuation is caused by unstable feeding, poor temperature control and unsuitable screw; system optimization is the key
Extrusion & Post CMC extrusioncurrent fluctuationtemperature control accuracyscrew designfeeding stability
Q
Gel Particles in CMC Extruded Film
A
Gel particles are caused by insufficient melting; increasing temperature and mixing are the key
Extrusion & Post CMC filmgel particlesmelting temperaturemixing sectionhigh-molecular-weight components
Q
Cold Slug Marks in CMC '2079851475616104452
A
Cold slug marks are caused by solidified residual material in the nozzle; increasing nozzle temperature and cold slug well design are the key
Injection Molding CMC injectioncold slug marknozzle temperaturecold slug wellinjection pressure
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