Simbi isina tsvina haifaniri kuita ngura, asi haisi nyore kuita ngura. Pasi pemamwe mamiriro ezvinhu, simbi isina tsvina ichaitawo ngura. Iyo pamusoro pesimbi isina tsvina ine yakaonda kwazvo, yakaonda uye yakagadzikana chromium rich oxide film, Stainless steel rust, neiyi oxide film kudzivirira maatomu eokisijeni kupinza oxidation reaction uye ngura. Muchokwadi, mamwe masimbi asina tsvina ane zvese zvinodzivirira ngura uye acid resistance (corrosion resistance). Ngura uye kushorwa kwesimbi yesimbi inokonzerwa nekuumbwa kwe chromium-rich oxide film (passivation film) pamusoro payo, iyo inoparadzanisa simbi kubva kunze kwekunze, inodzivirira simbi kuti iwedzere kusvibiswa, uye inokwanisa kuzvigadzirisa pachayo. Kana ikakuvadzwa, chromium musimbi inogadzirisazve firimu rekufambisa neokisijeni mukati uye rinoramba richiita basa rekudzivirira. Kana iyo oxide firimu yakuvadzwa, inoita ngura nyore.
1) Nzvimbo yesimbi isina tsvina yakanyorova, kana iri mvura uye okisijeni, kuumbwa kweasidhi yeasidhi uye kukuvadzwa kwekuvhuvhuta pamusoro pesimbi isina tsvina.
2) Stainless simbi zvigadzirwa zvinokuvadzwa nemagetsi nematurusi ekuisa uye zvino zvinokuvadza iyo inodzivirira firimu. Semuyenzaniso, kana Stainless simbi mabhaudhi akaiswa kunze kweketeni madziro engineering, wrench inokonzeresa kukuvadzwa kwemichina kunzvimbo iyo musoro webhaudhi unosangana. Mushure mekugeza kwemvura, musoro wemabhaudhi esimbi ichaita sengura inoyangarara zvishoma.
3) Pane tsvina yeguruva kana zvidimbu zvesimbi pamusoro pesimbi isina tsvina, iyo iri nyore kuita electrochemical kuita nesimbi isina tsvina mumhepo ine hunyoro kuti ikurumidze kuonda kwesimbi isina tsvina.
4) Simbi isina tsvina yakazarurwa kune acid, alkali, munyu uye zvimwe zvinhu zvinotapukira kumakemikari reaction corrosion. Semuyenzaniso, machira ekubatanidza madziro emadziro mumaguta emahombekombe anowanzo kusarudzirwa 316 Stainless simbi zvigadzirwa (zvinoita corrosion-resistant pane 304 Stainless steel), nekuti munyu wakakwira mumhepo yemaguta emahombekombe zviri nyore kukonzera ngura kusimbi isina tsvina.
Nokudaro, kuitira kuti zvigadzirwa zvesimbi zvirambe zvakajeka uye zvisingasviki, zvakakosha kusarudza zvinhu zvakakodzera zvezvigadzirwa zvesimbi, zvinoteverwa nekuchenesa nekuchengetedza zvigadzirwa zvesimbi, kubvisa kusvibiswa kwepamusoro kuti usaita uye kuora.
Nguva yekutumira: Aug-19-2022
