Simbi isina ngurainozivikanwa nekuparadzaniswa kwayo, asi haina kudzivirirwa zvachose. Simbi isina nguwo inogona ngura pasi pemamwe mamiriro, uye nzwisiso kuti nei izvi zvikaitika zvinogona kubatsira kudzivirira nekugona kurira.
Simbi isina tsvina ine chromium, iyo inoumba mutete, anopfuura oxide layer pamusoro payo pamusoro apo yakafumurwa neokisijeni. Iyi nziyo dzenzou, dzinozivikanwawo se "layer" "inopa basa rekushora irosimbi isina ngurainozivikanwa.
Zvinhu zvinokanganisa ngura pane simbi isina tsvina:
Kuratidzwa kwe chlorides
Mauto ekukuvara
Kushaikwa kweOxygen
Kusvibiswa
Kupisa kwakanyanya
Mbiri yemhando isina kunaka simbi
Harsh Kemical nharaunda
Mhando dzesimba risina simba recorosion:
Kune akasiyana marudzi eStabless Simbi Corrosion. Mumwe nemumwe wavo anopa matambudziko akasiyana uye anoda kubata kwakasiyana.
General Corrosion- ndiyo inofungidzirwa zvakanyanya uye iri nyore kubata. Iyo inoratidzwa neyunifomu kurasikirwa kweiyo nzvimbo yese.
Galanic corrosion- Iyi mhando yecorosion inobata yakawanda simbi alloys. Zvinoreva mamiriro ezvinhu apo imwe simbi inosangana neyimwe uye inokonzeresa imwe kana zvese kuita nemumwe uye corrode.
Pamba Paradza Corrosion- Iyo inzvimbo yemuno yemunharaunda yekugadzirisa iyo inosiya cavities kana maburi. Iyo yakapararira munzvimbo dzine chlorides.
Crevice Corrosion- Zvakare Localized Corrosion inoitika pane crevice pakati pezviviri zvekubatana. Zvinogona kuitika pakati pemasimbi maviri kana simbi uye isiri yesimbi.
Dzivirira simbi isina tsvina kubva mukumira:
Kuchenesa isina tsvina simbi nguva dzose kuti ubvise zvinongedzo uye chengetedza iyo yekudzivirira denderedzwa.
Regedza kufumura simbi isina tsvina kune chlorides uye nemakemikari ane hutsinye.
Dzivirira simbi isina tsvina kubva pakukuvara kwemuchina nekushandisa nzira dzakakodzera dzekubata uye dzekuchengetedza nzira.
Ita shuwa mwaka wakakodzera munzvimbo dzemamiriro ekunze uko simbi isina simbi inoshandiswa kuchengetedza okisijeni mazinga.
Sarudza yakakwirira-mhando isina tsvina simbi ine yakakodzera lexy manhamba ekunyorwa kwechinangwa chekushandisa.
Kutumira Nguva: Aug-11-2023