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문제 및 해결책

일반적인 플라스틱 재료 문제에 대한 실질적인 답변

2239 질문
Q
EMA Extrusion Rough Surface
A
Rough surface is caused by low-temperature extrusion and die defects; increasing temperature and polishing the die are the core countermeasures
Extrusion & Post EMA extrusion rough surface die polishing extrusion temperature melt elasticity
Q
EMA Extruder Severe Screw Wear
A
Screw wear is caused by filler friction and adhesion; wear-resistant screws and temperature control are key
Extrusion & Post EMA extrusion screw wear nitrided screw filler friction bimetallic screw
Q
EMA Extruded Film Longitudinal Stripes
A
Q
EMA Film Blocking, Difficult Layer Separation
Q
EMA Extruded Profile Bending Deformation
A
Profile bending is caused by uneven cooling and uneven flow speed; uniformization and alignment are the key to solving it
Extrusion & Post EMA extrusion bending deformation uniform cooling uniform flow speed sizing sleeve
Q
EMA Extruded Film Poor Thickness Uniformity
A
Film thickness uniformity needs coordinated optimization from three aspects: die design, gap adjustment and cooling
Extrusion & Post EMA film thickness uniformity die design extrusion swell air ring cooling
Q
EMA Film Excessive Heat Shrinkage
A
Film heat shrinkage is caused by orientation freezing; reducing draw ratio and annealing treatment are key
Extrusion & Post EMA film heat shrinkage orientation release annealing treatment biaxial stretching
Q
EMA Extrusion Dimensional Instability
A
Extrusion dimensional stability depends on feeding accuracy, temperature control and haul-off synchronization
Extrusion & Post EMA extrusion dimensional stability feeding control temperature PID haul-off synchronization
Q
EMA Extrusion Die Material Buildup and Carbon Deposits
A
Die carbon deposits are caused by thermal oxidation and untimely cleaning; PE flushing and timely cleaning are key
Extrusion & Post EMA extrusion die carbon deposits PE flushing residence zone thermal oxidation
Q
EMA Delamination When Blended with Incompatible Resins
A
Blending with large polarity differences requires reactive compatibilizer to form chemical bonding at the interface to solve it
Extrusion & Post EMA blend delamination polarity difference EMA-g-MAH reactive compatibilization interfacial bonding
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