Molding Process
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PSU Solvent Welding and Bonding
Fenómeno del problema
[Problem Phenomenon] PSU parts need joining and assembly; welding and bonding process selection is difficult
Análisis de la causa
PSU can use 700°F hot air heat sealing, hot plate welding, ultrasonic welding, bonding and solvent welding; solvent welding uses a 5% PSU methylene chloride solution applied, then pressed and dried under elevated temperature
Solución
Select hot plate welding or ultrasonic welding according to structure; perform solvent welding per the 5% methylene chloride solution procedure; anneal and pre-treat the surface before bonding; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusión clave
PSU has a complete range of joining processes; solvent welding with 5% methylene chloride is a distinctive option; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence
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