Injection Molding
14 visualizações
Severe mold deposit of PBT injection molded parts
Fenómeno do problema
White or yellow deposits (mold deposit) appear on the mold surface after a period of PBT '2079851475616104452.
Análise das causas
Low molecular oligomers and additives in PBT migrate to the mold surface and deposit at high temperature; impurities accumulate in the recycled material.
Solução
Clean the mold regularly; reduce the processing temperature; select PBT grades with low oligomers; use anti-mold-deposit additives.
Conclusão principal
PBT mold deposit is the result of additive and oligomer migration.
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!