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Practical answers to common plastic material challenges

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EVA product twist deformation

Twist deformation is caused by asymmetric cooling; symmetric cooling is key

Molds & Tooling EVA twist deformation symmetric cooling gate arrangement annealing

EVA flatness is insufficient

Molds & Tooling EVA flatness shrinkage difference uniform mold temperature annealing treatment

EVA internal shrinkage voids

Molds & Tooling EVA shrinkage void thick wall holding time gate freezing

EVA length out of tolerance

Molds & Tooling EVA length out of tolerance shrinkage rate mold compensation sufficient cooling

EVA surface gloss is poor

Molds & Tooling EVA gloss mold polishing crystalline scattering nucleating agent

EMA product elliptical deformation

Elliptical deformation is caused by asymmetric demolding force; uniform ejection is key

Molds & Tooling EMA elliptical deformation symmetric ejection uniform cooling setting time

EMA product twist deformation

Twist deformation is caused by asymmetric cooling; symmetric cooling is key

Molds & Tooling EMA twist deformation symmetric cooling gate arrangement annealing

Insufficient EMA flatness

Molds & Tooling EMA flatness shrinkage difference uniform mold temperature annealing treatment

EMA internal shrinkage voids

Molds & Tooling EMA shrinkage voids thick wall holding pressure time gate freezing

EMA length out of tolerance

Molds & Tooling EMA length out of tolerance shrinkage rate mold compensation sufficient cooling

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