Yuav ua li cas tiv thaiv aluminium corrosion?

Tsis kho txhuas muaj corrosion kuj zoo heev nyob rau hauv feem ntau ib puag ncig, tab sis nyob rau hauv muaj zog acid los yog alkaline ib puag ncig, txhuas feem ntau corrodes kuj sai heev.Ntawm no yog ib daim ntawv teev npe yuav ua li cas koj tuaj yeem tiv thaiv cov teeb meem txhuas corrosion.

Thaum nws siv kom raug, txhuas muaj lub neej ntev dua li lwm yam khoom siv, xws li carbon steel, galvanized steel thiab tooj liab.Nws durability yog zoo heev.Nws kuj yog feem ntau superior rau lwm cov ntaub ntawv nyob rau hauv heev sulphurous thiab marine enviroments.

Feem ntau hom corrosion yog:

• Galvanic corrosion kuj tuaj yeem tshwm sim qhov twg muaj ob qho tib si hlau sib tiv tauj thiab tus choj electrolytic ntawm cov hlau sib txawv.
• Pitting corrosion tshwm sim tsuas yog nyob rau hauv lub xub ntiag ntawm ib tug electrolyte (xws li dej los yog ya raws) uas muaj ntsev yaj, feem ntau yog chlorides.
• Crevice corrosion tuaj yeem tshwm sim hauv nqaim, ua kua dej crevices.

Yog li, koj yuav ua li cas kom zam tau nws?

Nov yog kuv daim ntawv txheeb xyuas yuav ua li cas tiv thaiv corrosion:

• Xav txog qhov tsim profile.Tus tsim ntawm qhov profile yuav tsum txhawb kom qhuav - cov kua dej zoo, kom tsis txhob muaj corrosion.Koj yuav tsum tsis txhob muaj cov txhuas uas tsis muaj kev tiv thaiv nyob rau hauv ntev kev sib cuag nrog cov dej stagnation, thiab zam cov hnab tshos uas cov av tuaj yeem sau tau thiab tom qab ntawd khaws cov khoom ntub rau lub sijhawm ntev.
• Nco ntsoov cov nqi pH.pH tus nqi qis dua 4 thiab siab dua 9 yuav tsum zam kom tiv thaiv corrosion.
• Ua tib zoo saib rau ib puag ncig:Nyob rau hauv ib puag ncig hnyav, tshwj xeeb tshaj yog cov uas muaj cov ntsiab lus chloride siab, yuav tsum tau them nyiaj rau qhov kev pheej hmoo ntawm galvanic corrosion.Nyob rau hauv cov cheeb tsam zoo li no, ib co ntaub ntawv ntawm rwb thaiv tsev ntawm txhuas thiab ntau noble hlau, xws li tooj liab los yog stainless hlau, yog pom zoo.
• Corrosion nce nrog stagnation:Nyob rau hauv kaw, kua-muaj tshuab, qhov twg cov dej nyob twj ywm rau lub sij hawm ntev, corrosion tsub kom.Inhibitors feem ntau tuaj yeem siv los muab kev tiv thaiv corrosion.
• Zamsevere, ntub ib puag ncig.Qhov zoo tshaj plaws, khaws cov txhuas kom qhuav.Kev tiv thaiv cathodic yuav tsum tau txiav txim siab nyob rau hauv qhov nyuaj, ntub ib puag ncig tiv thaiv corrosion.