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Praktische Antworten auf häufige Herausforderungen mit Kunststoffmaterialien

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Difficult demolding in PVA '2079851475616104452

Injection Molding PVA injection difficult demolding draft angle adhesion ejection design

Elliptical deformation of PU products

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

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

Internal delamination cracking of PU

Extrusion & Post PU internal delamination interfacial bonding compatibilizer uniform cooling

Poor resilience of PU flexible foam

PU flexible foam resilience is determined by isocyanate index and catalyst formulation

Material Analysis PU flexible foam resilience isocyanate index catalyst foam density

Internal black speck carbonization of PU

Processing Machinery PU internal black specks thermal carbonization screw cleaning temperature control

Snakeskin pattern on PU surface

Extrusion & Post PU snakeskin pattern extrusion temperature elastic recovery die temperature control

Severe excessive orientation of PU

Injection Molding PU excessive orientation injection speed multi-point gates performance difference

Low flexural modulus of PU

Material Analysis PU flexural modulus rigid filler nucleating agent crystallinity

Twisting deformation of PU products

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

Molds & Tooling PU twisting deformation symmetric cooling gate arrangement annealing

PU hydrolytic aging

Material Analysis PU hydrolytic aging polar groups anti-hydrolysis stabilizer waterproof coating

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