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EVOH '2079851475616104452 demolding difficulty

Injection Molding EVOH injection demolding difficulty draft angle adhesion ejection design

EVA surface periodic corrugations

Corrugations are caused by unstable injection; equipment overhaul and PID control are key

Injection Molding EVA surface corrugation injection stability equipment overhaul PID control

EVA surface tiger-skin pattern

Injection Molding EVA tiger-skin pattern injection speed multi-stage injection mold temperature control

EVA surface color difference is obvious

Injection Molding EVA color difference color masterbatch dispersion pigment orientation temperature stability

EVA surface orange peel texture

Injection Molding EVA orange peel texture mold temperature holding pressure surface solidification

EVA internal stress concentration is severe

Injection Molding EVA internal stress orientation stress annealing treatment uniform cooling

Cold slug marks in EVA '2079851475616104452

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

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

Unbalanced multi-cavity filling in EVA '2079851475616104452

Injection Molding EVA injection multi-cavity balance runner design gate size mold flow analysis

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