Production & Quality
3 Aufrufe
PA66 chemical resistance boundaries
Problembeschreibung
PA66 parts are corroded and powdered on the surface after contacting strong acids or oxidants, yet are unharmed when contacting oils
Ursachenanalyse
PA66 is resistant to oil, fuel, and most solvents, but not resistant to strong acids and oxidants, and amide bonds are rapidly degraded; misjudgment of the chemical environment will lead to batch early failure
Lösung
①Perform compatibility verification first for chemical contact scenarios; ②Switch to PP or fluoroplastics for strong acid and oxidant environments; ③PA66 can be used with confidence in fuel and engine oil environments; after adjustment, take continuous samples to verify the effect, confirm stability before resuming mass production
Wichtigste Erkenntnis
PA66 chemical resistance is a selective advantage; the boundary of oil resistance but not strong acid resistance must be confirmed item by item in material selection review; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!