Injection Molding
14 visualizações
Bonding Strength Between PBT Injection-Molded Parts and Metal Inserts
Fenómeno do problema
When PBT overmolds metal terminals or inserts, the interfacial bonding strength does not meet the standard.
Análise das causas
PBT adheres poorly to metal surfaces, and the large molding shrinkage causes interfacial debonding; the metal inserts are not preheated.
Solução
Preheat the metal inserts to 100-150°C; knurl or groove the surface to increase mechanical anchoring; apply an adhesion promoter.
Conclusão principal
The bonding between PBT and metal inserts is a key quality of electrical connectors.
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!