Official Answer
Answer
Passivation nubuvuzi bwa chimique bugenewe gukuraho 'tramp' icyuma hejuru yicyuma kitagira umwanda no kuzamura chromium-oxyde ikingira. Kuri 316 Icyuma kitagira umuyonga (kirimo $ 2-3 \% $ Molybdenum kugirango irusheho kunanira imyanda), passivisation mu bwogero bwa acide nitric cyangwa citric ni ngombwa nyuma yo gukonjesha no gutunganya ubushyuhe. Niba ibice by'icyuma biva mubikoresho bigumye hejuru, birashobora gutangiza ingirabuzimafatizo za galvanike, biganisha ku kwangirika kwa saline (ikungahaye kuri chloride). Inzira kuri ASTM A967 yemeza ko igipimo cya $ Cr / Fe $ hejuru yubuso cyinshi, gitanga 'passivité' isabwa kugirango umuntu yinjire igihe kirekire mumazi yinyanja cyangwa mubuvuzi aho amasoko ahura namazi yumubiri.
