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إجابات عملية على التحديات الشائعة في مواد البلاستيك

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EVA foam density is too high

EVA foam density is determined by the blowing agent, VA content, and crosslinking degree

Material Analysis EVA foam high density AC blowing agent VA content DCP crosslinking

EVA extruded pipe ovality exceeds standard

Processing Machinery EVA pipe ovality annular cooling vacuum sizing uniform traction

EVA extruded film has gel particles

Extrusion & Post EVA film gel particle melting temperature mixing section high molecular weight component

EVA extruded film has transverse corrugations

Extrusion & Post EVA film transverse corrugation traction vibration cooling roller eccentricity pressure stabilizing device

Frequent screen clogging in EVA extrusion

Extrusion & Post EVA extrusion screen clogging gel particles stepped screens automatic screen change

Silver streaks caused by moisture in EVA processing

Material Drying EVA injection silver streaks moisture drying venting back pressure

Cold slug marks in EVA '2079851475616104452

Injection Molding EVA injection cold slug marks nozzle temperature cold slug well injection pressure

Wrinkling in EVA extruded film winding

Extrusion & Post EVA film winding wrinkling tension control thickness uniformity guide roller parallelism

Flow marks in EVA '2079851475616104452

Injection Molding EVA injection flow marks injection speed mold temperature gate area

Sink marks in EVA '2079851475616104452

Injection Molding EVA injection sink marks holding pressure wall thickness difference gate design

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