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문제 및 해결책

일반적인 플라스틱 재료 문제에 대한 실질적인 답변

11636 질문
Q
MP extruded film longitudinal streaks
A
longitudinal streaks are caused by die defects and pressure fluctuation; die maintenance and pressure stability are key
Extrusion & Post MP film longitudinal streaks die gap melt pressure lip flatness
Q
MP extruded profile bending deformation
A
profile bending is caused by uneven cooling and uneven flow velocity; homogenization and alignment are the keys to solving
Extrusion & Post MP extrusion bending deformation uniform cooling uniform flow velocity calibrating sleeve
Q
MP '2079851475616104452 severe flash
A
flash is caused by high-pressure injection and mold gap; reducing pressure and improving mold mating are key
Injection Molding MP injection flash clamping force parting line injection pressure
Q
MP film excessive heat shrinkage
A
film heat shrinkage is caused by orientation freezing; reducing draw ratio and annealing are key
Extrusion & Post MP film heat shrinkage orientation release annealing biaxial stretching
Q
MP extruded film poor thickness uniformity
A
film thickness uniformity requires coordinated optimization from die design, gap adjustment and cooling
Extrusion & Post MP film thickness uniformity die design extrusion swell air ring cooling
Q
MP extrusion dimensional instability
A
extrusion dimensional stability depends on feeding accuracy, temperature control and haul-off synchronization
Extrusion & Post MP extrusion dimensional stability feeding control temperature PID haul-off synchronization
Q
MP '2079851475616104452 warpage deformation
A
Q
MP blended with incompatible resin delamination
A
blends with large polarity difference require a reactive compatibilizer to form chemical bonding at the interface to solve
Extrusion & Post MP blend delamination polarity difference MP-g-MAH reactive compatibilization interfacial bonding
Q
MP extrusion die buildup carbon deposits
A
die carbon deposits are caused by thermal oxidation and untimely cleaning; PE flushing and timely cleaning are key
Extrusion & Post MP extrusion die carbon deposit PE flushing stagnation zone thermal oxidation
Q
MP '2079851475616104452 premature gate freeze
A
premature gate freezing is caused by small gate and low temperature; enlarging the gate and raising temperature are fundamental measures
Injection Molding MP injection gate freezing holding transmission gate size mold temperature
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