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문제 및 해결책

일반적인 플라스틱 재료 문제에 대한 실질적인 답변

2025 질문
Q
CEF machine cleaning difficult
A
Difficult machine cleaning is caused by the strong adhesion of CEF; PE flushing and temperature reduction are the key
Processing Machinery CEFmachine cleaning difficultadhesionPE flushingspecial cleaning material
Q
CEF material changeover residue
A
Material changeover residue is caused by incomplete cleaning; sufficient cleaning and disassembly are the key
Processing Machinery CEFmaterial changeover residuecleaning materialscrew disassemblydead corner cleaning
Q
Longitudinal stripes or scratches appear on the outer surface of extruded pipe
A
Q
Incomplete cleaning during material/color change causes mixing or color difference
A
Material/color change requires full cleaning and purging
Processing Machinery material changecolor changecleaningpurging
Q
Poor mixing affects product performance and appearance consistency
A
Mixing requires full dispersion and time control
Processing Machinery extrusion mixingdispersionformulationmixing time
Q
Product has burning, poor plasticization, or unstable color
A
Screw speed needs to match back pressure to avoid excessive shear
Processing Machinery screw speedshearback pressureplasticization
Q
Plasticization efficiency decreases after screw wear, product quality fluctuates
A
Screw wear requires regular checks and timely replacement
Processing Machinery screw wearplasticization efficiencycheck ringgap
Q
Mixing temperature, time, and equipment selection affect modification effect
A
Modification process needs to be adjusted according to formulation characteristics
Processing Machinery modification processmixingdispersiontemperature
Q
Cellulose acetate butyrate has poor thermal stability during processing
A
Thermal stability needs to be addressed from antioxidants and temperature control
Processing Machinery thermal stabilityantioxidantdegradationtemperature
Q
Screw parameters not matching the material affect processing quality
A
The screw needs to match the material melting characteristics
Processing Machinery screwcompression ratioL/D ratioplasticization
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