1. ** Dab tsi yog ob lub ntsiab ua rau corrosion? **
Ob lub ntsiab ua rau kev corrosion yog:
* ** Qhov no eleconemicalical
* ** Qhov no tshwm sim ncaj qha rau kev tawm tsam: ** Qhov no tshwm sim thaum twg cov pa roj ntsha uas muaj cov pa hluav taws xob nrog cov tshuaj corrosive lossis hydrogen sulfide) yam tsis muaj kev xav tau ntawm electrochemical Circuitf.
2. ** Dab tsi yog qhov tseem ceeb ua rau ntawm atmospheric corrosion ntawm cov yeeb nkab steel? **
Lub ntsiab ua rau ntawm atmospheric corrosion ntawm cov yeeb nkab steel yog ** nthuav tawm cov pa taws (dej) Cov dej noo ua ua qhov tseem ceeb electrolyte.
3. ** Yuav ua li cas tiv thaiv cov atmospheric corrosion? **
Thawj txoj hauv kev los tiv thaiv cov atmospheric corrosion yog:
* Thov thov ** kev tiv thaiv kab mob ** (pleev xim, hmoov txheej, cov txheej txheem tshwj xeeb hlau zoo li galvanizing {}} zinc txheej).
* Siv ** Corrosion - Cov ntaub ntawv resistant ** (weathering hlau, txhuas alloys) qhov ua tau.
* Tswj ib puag ncig (txo cov av noo, tshem cov pa paug).
* Siv ** corrosion inibitors ** (tshuaj lom neeg thov mus rau saum npoo lossis ntxiv rau ib puag ncig).
* Ua haujlwm ** Kev tiv thaiv Cathodic ** (tshwj xeeb rau kev faus lossis submerged cov qauv; tsis tshua muaj tshwm sim rau cov kav dej yog tsis muaj txheej txheem).
4. ** Yuav ua li cas xam xam Corrosion? **
Tus nqi corrosion feem ntau tau muab xam los ntawm ntsuas qhov ntsuas ** ntawm cov qauv hlau hla kev paub ** thiab ** Thaj chaw thaj chaw ** **. Cov mis uas ntxim nyiam tshaj yog:
`Corrosion tus nqi (MM / Xyoo)=(k * w) / (a * t * d)`
Qhov twg:
* `K` {= Ti Tas (8.76 x 10⁴ rau mm / xyoo thaum hnyav yog nyob rau hauv CM², lub sijhawm hauv cov xuab moos, ntom hauv g / cm³)
* `W`=phaus poob (grams)
* `{{= thaj tsam ntawm cov hnoos qeev (cm²)
* `T` =} thaum muaj sijhawm (teev)
* `D`=ntom ntawm cov hlau (g / cm³)
Corrosion tus nqi kuj tseem tau qhia nyob rau hauv lwm chav nyob zoo li Mils ib xyoos (mpy) lossis milligrams ib square tsis kam nyob rau ib hnub (Milligrams ib square tsis kam nyob rau ib hnub (MLD).
5. ** Dab tsi yog ob txoj kev los tiv thaiv corrosion? **
Ob txoj hauv kev los tiv thaiv corrosion yog:
* ** Kev tiv thaiv Barrier: ** Tsim kev thaiv lub cev ntawm cov hlau thiab cov chaw muaj xeb. Qhov no yog ua tiav siv ** kev tiv thaiv kev tiv thaiv ** (xim av, enamels, plastics, hlau plating) lossis ** linings **.
* ** Kev tiv thaiv Cathodic: ** Ua tus qauv hlau tus qauv ntawm cov tshuab hluav taws xob ntawm lub cell Electrochemical cell kom nres cov oxidation (xaus) tshuaj tiv thaiv. Qhov no tau ua tiav los ntawm:
* ** Saws anodes: ** Txuas cov hlau ua ntau dua (anodic) hlau (zoo li zinc lossis magnesium) uas corrodes hloov.
* ** Siv cov khoom siv tam sim no: ** Siv lub zog sab nraud kom yuam kom yuam cov qauv hluav taws xob mus rau cov qauv hlau, ua kom nws Cathodic.
