Official Answer
Answer
Oxide y'umukara (MIL-DTL-13924) ni igifuniko cyo guhinduranya cyongeramo hafi yubunini ($ <1 $ micron), bigatuma biba byiza kumpeta izenguruka kandi yihanganira cyane mubugari bwa groove. Ariko, itanga umunyu muke cyane wo kurwanya spray (mubisanzwe $ <96 $ amasaha hamwe namavuta). Zinc Fosifate (MIL-DTL-16232 Ubwoko bwa Z) itanga imiterere iremereye, ya kristaline ifite amavuta menshi yangiza ruswa, itanga uburinzi bwiza cyane bwimodoka zikoreshwa munsi yimodoka. Injeniyeri agomba guhitamo ashingiye ku kwihanganira 'kwiyubaka': niba impeta iva kuri groove ari $ <0.002 $ inches, Black Oxide ifite umutekano mukurinda guhambira, mugihe kubidukikije byangirika cyane, Phosphate nibisanzwe.
