Ib qho hlau lossis hlau uas muaj peev xwm tsis zoo dua yog txuas nrog cov kab thaiv hlau thaiv thiab muab faus rau hauv av. Cov hlau no los yog alloy nrog lub peev xwm tsis zoo yog hu ua kev txi anode. Sacrificial anodes tau txais lawv lub npe vim tias lawv tuaj yeem noj tau thaum muab kev tiv thaiv.
Cov khoom siv twg tuaj yeem siv ua kev txi anode? Nws yuav tsum muaj cov yam ntxwv hauv qab no: (1) lub peev xwm electrode yuav tsum tsis zoo, thiab kev tsav tsheb ntawm cov qauv tiv thaiv yuav tsum loj; (2) nws cov zis tam sim no ruaj khov thiab nws cov txiaj ntsig tam sim no siab; ③ capacitance ntawm cov khoom yuav tsum loj; (4) Tus kheej-corrosion yuav tsum me me thiab yaj tusyees, thiab cov khoom siv corrosion yog yooj yim poob; ⑤ Cov khoom yog pheej yig, dav siv thiab yooj yim rau txheej txheem.
Feem ntau siv cov khoom siv sacrificial anode yog: magnesium, txhuas, zinc.
Magnesium anode muaj qhov ua tau zoo ntawm qhov hluav taws xob loj thiab tam sim no loj hauv ib cheeb tsam, yog li nws tuaj yeem siv rau hauv av lossis dej tshiab nrog kev tiv thaiv siab. Tab sis tus nqi yog me ntsis siab dua lwm cov ntaub ntawv, thiab nws tus kheej corrosion yog loj, tam sim no efficiency yog tsawg, thaum lub anode tso zis tam sim no me me, vim hais tias ntawm nws cov corrosion yog loj, qhov tseeb capacitance yuav qis dua.
Aluminium anodes yog alloy anodes nrog lub zog ua haujlwm zoo thiab yog cov khoom siv nyiaj txiag zoo tshaj plaws nyob rau tam sim no. Txawm li cas los xij, cov dej tsis huv hauv dej hiav txwv thiab hluav taws xob muaj zog tuaj yeem cuam tshuam rau nws txoj haujlwm.
Zinc anode nws tus kheej corrosion yog me me, lub neej anode yog ntev, ntxiv rau qhov kub thiab txias dej tshiab, tuaj yeem ua lub luag haujlwm hauv ntau qhov chaw, tuaj yeem siv rau hauv lub tank. Qhov tsis zoo yog qhov ua tau zoo ntawm qhov hluav taws xob tsawg thiab hluav taws xob tsawg dua.