Nzira yekudzivirira sei aluminium corrosion?

Aruminiyamu isina kubatwa ine kunaka kwakanyanya kusaita ngura munzvimbo zhinji, asi munzvimbo dzakasimba asidhi kana alkaline, aruminiyamu inowanzoita ngura nekukurumidza.Heino rondedzero yekuti ungadzivirira sei matambudziko ealuminium corrosion.

Kana ikashandiswa nemazvo, aruminiyamu ine hupenyu hurefu kupfuura zvimwe zvakawanda zvekuvaka, zvinosanganisira kabhoni simbi, galvanized steel nemhangura.Kugara kwayo kwakanakisa.Iyo inowanzo hukuru kune zvimwe zvinhu mumhepo ine sarufa yakanyanya uye yemugungwa.

Mhando dzinonyanyozivikanwa dzecorrosion ndeidzi:

• Galvanic corrosion inogona kuitika apo pane zvese metallic contact uye electrolytic bhiriji pakati pesimbi dzakasiyana.
• Pitting corrosion inoitika chete pamberi pe electrolyte (ingava mvura kana mwando) ine yakanyungudika munyu, kazhinji chlorides.
• Crevice corrosion inogona kuitika mumitsetse yakatetepa, yakazadzwa nemvura.

Saka, chii chaungaita kuti uzvidzivirire?

Heino rondedzero yangu yenzira yekudzivirira nayo corrosion:

• Funga nezvekugadzirwa kweprofile.Kugadzirwa kweprofile kunofanira kukurudzira kuomeswa - mvura yakanaka, kudzivisa kuora.Iwe unofanirwa kudzivirira kuve nearuminiyamu isina kudzivirirwa mukubata kwenguva refu nemvura isingayerere, uye dzivirira homwe umo tsvina inogona kuunganidza uye ipapo kuchengeta zvinhu zvakanyorova kwenguva yakareba.
• Funga nezve pH kukosha.pH yakaderera pane 4 uye yakakwirira kupfuura 9 inofanirwa kudzivirirwa kudzivirira kubva mukuora.
• Chenjerera kune zvakatipoteredza:Munzvimbo dzakakomba, kunyanya idzo dzine yakakwira chloride yemukati, kutarisisa kunofanirwa kubhadharwa kune njodzi yegalvanic corrosion.Munzvimbo dzakadai, imwe nzira yekudzivirira pakati pealuminium nesimbi inoyevedza, semhangura kana simbi isina tsvina, inokurudzirwa.
• Corrosion inowedzera nekumira:Mune yakavharwa, ine mvura-ine masisitimu, apo mvura inoramba yakamira kwenguva yakareba, ngura inowedzera.Inhibitors inogona kazhinji kushandiswa kupa kudzivirira ngura.
• Dzivisasnguva dzose, nzvimbo dzakanyorova.Zvakanaka, chengetedza aluminium yakaoma.Kudzivirirwa kweCathodic kunofanirwa kutariswa munzvimbo dzakaoma, dzakanyorova kudzivirira ngura.