المشاكل والحلول

إجابات عملية على التحديات الشائعة في مواد البلاستيك

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Unstable PVA extrusion feeding

Extrusion & Post PVA feedingbridgingloss-in-weight feedergranulationfeed screw

Poor printing adhesion of PVA film

Extrusion & Post PVA filmprinting adhesioncorona treatmentdedicated inksurface tension

Rough surface of PVA extrusion

Extrusion & Post PVA extrusionsurface roughnessdie polishingextrusion temperaturemelt elasticity

Severe screw wear of PVA extruder

Extrusion & Post PVA extrusionscrew wearnitrided screwfiller frictionbimetallic screw

Rough inner wall of PVA extruded pipe

Extrusion & Post PVA pipe rough inner wall mandrel polishing internal cooling melt elasticity

Longitudinal stripes on PVA extruded film

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

PVA film blocking, difficult to delaminate

Extrusion & Post PVA film blocking antiblock agent winding temperature erucamide

Bending deformation of PVA extruded profile

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

Poor thickness uniformity of PVA extruded film

Extrusion & Post PVA film thickness uniformity die design extrusion swell air ring cooling

Excessive heat shrinkage of PVA film

Extrusion & Post PVA film heat shrinkage orientation release annealing treatment biaxial stretching

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