문제 및 해결책

일반적인 플라스틱 재료 문제에 대한 실질적인 답변

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EVOH extruded film thick edges and thin middle

Molding Process EVOH film thickness distribution coat-hanger die gap fine-tuning edge effect

EVOH extrusion surface is rough

Extrusion & Post EVOH extrusion surface roughness die polishing extrusion temperature melt elasticity

EVOH extruder screw wear is severe

Extrusion & Post EVOH extrusion screw wear nitrided screw filler friction bimetallic screw

EVOH injection product has oil spots

Injection Molding EVOH injection oil spots release agent lubricant precipitation mold sealing

EVOH film printing adhesion is poor

Extrusion & Post EVOH film printing adhesion corona treatment special ink surface tension

EVOH and color masterbatch mixing with uneven color

Injection Molding EVOH coloring color masterbatch carrier compatibility pigment dispersion color streaks

EVOH injection weld line strength is low

Injection Molding EVOH injection weld line insufficient entanglement injection temperature overflow well

EVOH injection flow length ratio is insufficient

Injection Molding EVOH injection flow length ratio melt viscosity injection temperature flow aid

EVOH extruded film longitudinal stripes

Extrusion & Post EVOH film longitudinal stripes die gap melt pressure lip flatness

EVOH extruded profile bending deformation

Extrusion & Post EVOH extrusion bending deformation uniform cooling uniform flow velocity sizing sleeve

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