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Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

1506 perguntas
Q
Unbalanced filling of multi-cavity in PU '2079851475616104452
A
Multi-cavity filling imbalance is caused by runner design; balanced runners and mold flow analysis are key
Injection Molding PU injection multi-cavity balance runner design gate size mold flow analysis
Q
Ejection Whitening on PU Injection Molded Products
Q
Uneven Color in PU Mixed with Color Masterbatch
A
Color masterbatch carrier matching and full dispersion are the keys to color uniformity
Injection Molding PU coloringcolor masterbatchcarrier compatibilitypigment dispersioncolor streak
Q
Oil Spots on PU Injection Molded Products
A
Q
Insufficient Flow Length Ratio in PU '2079851475616104452
A
Insufficient flow length ratio is caused by PU high viscosity; high temperature, high pressure and large gate are key
Injection Molding PU injectionflow length ratiomelt viscosityinjection temperatureflow aid
Q
Low Weld Line Strength in PU '2079851475616104452
Q
Severe Flash in PU '2079851475616104452
A
Flash is caused by high-pressure injection and mold gap; reducing pressure and improving mold mating are key
Injection Molding PU injectionflashclamping forceparting lineinjection pressure
Q
Warpage in PU '2079851475616104452
A
Warpage is caused by shrinkage differences and orientation stress; uniform mold temperature and holding are key
Injection Molding PU injectionwarpageshrinkageholding pressureannealing
Q
Premature Gate Freezing in PU '2079851475616104452
A
Premature gate freezing is caused by small gate and low temperature; enlarging the gate and increasing temperature are the fundamental measures
Injection Molding PU injectiongate freezingholding pressure transmissiongate sizemold temperature
Q
Burnt Marks from Insufficient Mold Venting in PU '2079851475616104452
A
Burning is caused by insufficient venting and high-speed injection compressing air; increasing venting and reducing speed are key
Injection Molding PU injectionmold burningvent grooveinjection speedair compression
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