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Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

1506 perguntas
Q
Severe excessive orientation of PU
A
Excessive orientation is caused by fast unidirectional flow; speed reduction and multi-point gates are key
Injection Molding PU excessive orientation injection speed multi-point gates performance difference
Q
Periodic surface corrugation of PU
A
Corrugation is caused by unstable injection; equipment overhaul and PID control are key
Injection Molding PU surface corrugation injection stability equipment overhaul PID control
Q
Tiger skin pattern on PU surface
A
Tiger skin pattern is caused by unstable injection front; multi-stage injection and high mold temperature are key
Injection Molding PU tiger skin pattern injection speed multi-stage injection mold temperature control
Q
Obvious surface color difference of PU
A
Color difference is caused by uneven dispersion and orientation; masterbatch method and stable processing are key
Injection Molding PU color difference color masterbatch dispersion pigment orientation temperature stability
Q
Orange peel texture on PU surface
A
Orange peel is caused by rapid cooling and solidification; increasing mold temperature and holding pressure are key
Injection Molding PU orange peel mold temperature holding pressure surface solidification
Q
Severe internal stress concentration of PU
A
Internal stress is caused by fast injection and uneven cooling; speed reduction, uniform cooling and annealing are key
Injection Molding PU internal stress orientation stress annealing treatment uniform cooling
Q
Unstable weight of PU injection molded products
A
Product weight stability depends on shot volume precision and holding consistency
Injection Molding PU injection weight fluctuation shot volume holding consistency V/P switchover
Q
Cold slug marks in PU '2079851475616104452
A
Cold slug marks are caused by solidified residual material in the nozzle; increasing nozzle temperature and cold slug well design are key
Injection Molding PU injection cold slug marks nozzle temperature cold slug well injection pressure
Q
Flow marks in PU '2079851475616104452
A
Flow marks are caused by unstable injection front and rapid cooling; multi-stage injection and high mold temperature are key
Injection Molding PU injection flow marks injection speed mold temperature gate area
Q
Sink marks in PU '2079851475616104452
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