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Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

1506 perguntas
Q
EVA product twist deformation
A
Twist deformation is caused by asymmetric cooling; symmetric cooling is key
Molds & Tooling EVA twist deformation symmetric cooling gate arrangement annealing
Q
EVA flatness is insufficient
A
Insufficient flatness is caused by shrinkage differences and stress; uniform cooling and annealing are key
Molds & Tooling EVA flatness shrinkage difference uniform mold temperature annealing treatment
Q
EVA internal shrinkage voids
A
Shrinkage voids are caused by thick-wall shrinkage and insufficient holding; extending holding is key
Molds & Tooling EVA shrinkage void thick wall holding time gate freezing
Q
EVA length out of tolerance
A
Length out of tolerance is caused by unstable shrinkage rate; precise shrinkage compensation is key
Molds & Tooling EVA length out of tolerance shrinkage rate mold compensation sufficient cooling
Q
EVA surface gloss is poor
A
Poor gloss is caused by rough mold and crystalline scattering; polishing the mold and controlling crystallization are key
Molds & Tooling EVA gloss mold polishing crystalline scattering nucleating agent
Q
EMA product elliptical deformation
A
Elliptical deformation is caused by asymmetric demolding force; uniform ejection is key
Molds & Tooling EMA elliptical deformation symmetric ejection uniform cooling setting time
Q
EMA product twist deformation
A
Twist deformation is caused by asymmetric cooling; symmetric cooling is key
Molds & Tooling EMA twist deformation symmetric cooling gate arrangement annealing
Q
Insufficient EMA flatness
A
Insufficient flatness is caused by shrinkage differences and stress; uniform cooling and annealing are key
Molds & Tooling EMA flatness shrinkage difference uniform mold temperature annealing treatment
Q
EMA internal shrinkage voids
A
Shrinkage voids are caused by thick wall shrinkage and insufficient holding pressure; extending holding pressure is key
Molds & Tooling EMA shrinkage voids thick wall holding pressure time gate freezing
Q
EMA length out of tolerance
A
Length out of tolerance is caused by unstable shrinkage rate; precise shrinkage compensation is key
Molds & Tooling EMA length out of tolerance shrinkage rate mold compensation sufficient cooling
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