1.} Qhov twg cov nyhav ntsuas kub muaj nyob rau hauv cov tshuab corrosion?
Nce tshuaj lom neeg cov tshuaj tiv thaiv: rau txhua 10℃nce ntxiv, cov kev tiv thaiv corrosemical (xws li cov dej ntws tawm ntawm cov dej
Kev Sib Tham Nqaum Av Av noo: Hauv qhov kub thiab av noo ib puag ncig, dej ib puag ncig, uas txhawb nqa kev puas tsuaj zinc ions; Yog tias ib puag ncig kub tsawg yog nrog cov hws (xws li qhov sib txawv ntawm ib hnub thiab hmo ntuj), nws tseem nrawm nrawm corrosion.
Oxide zaj duab xis stability: nyob rau hauv chav ntsuas kub: ib qho yooj yim
Kev kub siab: Oxide zaj duab xis yuav tsim cov microcracks vim yog cov pa roj hluav taws xob (xws li so .
2. Dab tsi yog cov yam ntxwv ntawm corrosion hauv qhov chaw kub tsawg?
Cov dej phwj tuaj dominates: tsawg kub ua rau kom muaj kev sib haum ntawm cov ntawv cua daj cua dub {} {} {{.
Ntsev txau txau agridates: Yog tias ib puag ncig muaj chloride ntsev), pitting corrosion yuav tau nrawm txawm tias ntawm tsawg kub .
Cov ntaub ntawv raug: Nyob rau hauv ntug hiav txwv sib txawv nrog qhov loj sib txawv ntawm lub galvosized txheej tuaj yeem ncav cuag lub zog ntawm kev corrosion los ntawm 30%
{{0 {}} Dab tsi yog cov yam ntxwv ntawm corrosion nyob rau hauv qhov kub ib txwm muaj?
Electrochemical corrosion yog hom: Lub zinc txheej tiv thaiv lub substrate los ntawm "kev sib cais ntawm cov khoom noj dawb (35 degree) yuav txuas ntxiv mus rau ntau tshaj 5 hnub {5}
Cov av noo rhiab: thaum cov txheeb ze cov av noo yog ntau dua 60%, tus nqi corrosion nce siab heev; nyob rau hauv ib puag ncig ib puag ncig (av noo tsawg dua 40%), zinc txheej tuaj yeem nyob ruaj khov rau ib lub sijhawm ntev.
4. Dab tsi yog cov yam ntxwv ntawm corrosion hauv qhov chaw kub thiab cua sov ib puag ncig?
Oxide zaj duab xis kev puas tsuaj: kev kub siab (xws li cov pa roj oxide} Kuv muaj cov pa oxide}
Tshuaj lom neeg nruab nrab ntawm kev yis: acidic roj (xws li so atom) thaum dej siab ua ke nrog cov kua qaub los nag .
5. Dab tsi yog qhov ntsuas kom txhim kho qhov kub corrosion tsis kam?
Txhim kho txheej txheem txheej txheem: Xaiv cov txheej dinc-aluminium (xws li dx53d) nyob rau hauv corrosion galvanizing thiab tuaj yeem nyob ruaj khov ntawm 300 degree.
Nyob rau hauv tsawg-qhov kub thiab high-humidity ib puag ncig, nce cov txheej txheej tuab rau 200 g / m², thiab siv passivation + oiling composite kev kho.
Txhim kho kev tiv thaiv sab saum npoo: galvanizing + organic txheej (xws li ncu hluav taws xob (xws li ncu kub (xws li ncu rav)
Nyob rau hauv tsawg-kub thiab huab cua ib puag ncig (xws li chav dej - epoxy prester kom txo txoj kev pheej hmoo ntawm cov hws ntxiv .