Ibyuma bidafite ingese ntabwo ari ingese, ariko ntibyoroshye kubora. Mubihe bimwe, ibyuma bitagira umwanda nabyo bizabora. Ubuso bwibyuma bitagira umwanda bifite firime yoroheje cyane, yoroheje kandi ihamye ya firime ya okiside ikungahaye kuri okiside, ingese yicyuma, hamwe niyi firime ya okiside kugirango ikumire atome ya ogisijeni yinjira muri okiside hamwe ningese. Mubyukuri, ibyuma bimwe bidafite ingese bifite imbaraga zo kurwanya ingese no kurwanya aside (kurwanya ruswa). Kurwanya ingese no kwangirika kw'ibyuma bitagira umwanda biterwa no gushiraho firime ya okiside ikungahaye kuri chromium ikungahaye kuri firime (passivation film) hejuru yayo, itandukanya icyuma n’uburyo bwo hanze, ikabuza ibyuma gukomeza kwangirika, kandi ifite ubushobozi bwo gusana ubwayo. Niba byangiritse, chromium mu byuma izongera gukora firime ya passivation hamwe na ogisijeni hagati kandi ikomeze kugira uruhare mu kurinda. Iyo firime ya oxyde yangiritse, irabora byoroshye.
1) Ibidukikije byibyuma bitagira umwanda birahari, mugihe cyamazi na ogisijeni, gukora aside kama nisuri byangiza hejuru yicyuma.
2) Ibicuruzwa bitagira umwanda byangiritse muburyo bwibikoresho byo kwishyiriraho hanyuma byangiza firime irinda hejuru. Kurugero, mugihe ibyuma bidafite ingese byashizwe mumyenda yo hanze yububiko bwububiko bwububiko, umugozi utera kwangirika kwimashini aho umutwe wa bolt uhurira. Nyuma yo gukaraba imvura, umutwe wibyuma bidafite ingese bizagaragara ingese zireremba.
3) Hano hari umukungugu wumukungugu cyangwa ibyuma byicyuma hejuru yicyuma kidafite ingese, byoroshye kubyuka amashanyarazi hamwe nicyuma kitagira umwanda mukirere cyumuyaga kugirango byihute kwangirika kwicyuma.
4) Ubuso bwicyuma bugaragaramo aside, alkali, umunyu nibindi bintu bikunda kwangirika kwimiti. Kurugero, gufunga urukuta rwumwenda mumijyi yinyanja muri rusange byatoranijwe kubicuruzwa 316 bidafite ibyuma (birwanya ruswa kurusha 304 ibyuma bitagira umwanda), kubera ko umunyu mwinshi mwinshi mwikirere cyimijyi yinyanja byoroshye gutera ruswa kumyuma idafite umwanda.
Kubwibyo, kugirango ibicuruzwa bitagira umwanda bigumane kandi bitangirika, birakenewe guhitamo ibikoresho byiza byibicuruzwa bitagira umwanda, bikurikirwa nugusukura no kubungabunga ibicuruzwa bitagira umwanda, kuvanaho umwanda wo hejuru kugirango wirinde kwangirika no kwangirika.
Igihe cyo kohereza: Kanama-19-2022