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문제 및 해결책

일반적인 플라스틱 재료 문제에 대한 실질적인 답변

2239 질문
Q
Wrinkling in EVA extruded film winding
A
Film wrinkling is caused by tension fluctuation and uneven thickness; automatic tension control and homogenization are key
Extrusion & Post EVA film winding wrinkling tension control thickness uniformity guide roller parallelism
Q
Unstable feeding in EVA extrusion
A
Unstable feeding is caused by pellet characteristics; loss-in-weight feeding and anti-bridging are the core
Extrusion & Post EVA feeding bridging loss-in-weight feeder pelletizing feeding screw
Q
Poor printing adhesion of EVA film
A
Poor printing adhesion is caused by insufficient surface polarity; corona treatment and dedicated ink are key
Extrusion & Post EVA film printing adhesion corona treatment dedicated ink surface tension
Q
Rough EVA extrusion surface
A
Rough surface is caused by low temperature extrusion and die defects; raising temperature and polishing die are the core countermeasures
Extrusion & Post EVA extrusion rough surface die polishing extrusion temperature melt elasticity
Q
Severe screw wear of EVA extruder
A
Screw wear is caused by filler friction and adhesion; wear-resistant screw and temperature control are key
Extrusion & Post EVA extrusion screw wear nitrided screw filler friction bimetallic screw
Q
Rough inner wall of EVA extruded pipe
A
Pipe inner wall roughness is caused by mandrel condition and insufficient cooling; polishing mandrel and internal cooling are key
Extrusion & Post EVA pipe inner wall roughness mandrel polishing internal cooling melt elasticity
Q
Longitudinal stripes on EVA extruded film
A
Q
EVA film blocking with difficult separation
Q
Bending deformation of EVA extruded profiles
A
Profile bending is caused by uneven cooling and uneven flow velocity; homogenization and alignment are the key to solution
Extrusion & Post EVA extrusion bending deformation uniform cooling uniform flow velocity sizing sleeve
Q
Poor thickness uniformity of EVA extruded film
A
Film thickness uniformity requires coordinated optimization of die design, gap adjustment and cooling
Extrusion & Post EVA film thickness uniformity die design extrusion swell air ring cooling
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