1.Yuav ua li cas acid-resistant zinc?
Acid Resistance: Tsis zoo
Cov tshuaj tiv thaiv: Zinc reacts hnyav nrog acids, tsim zinc ntsev thiab tso hydrogen gas.
Qhov tshwm sim: Nyob rau hauv ib puag ncig acidic, zinc txheej yuav sai sai corrode thiab noj, poob nws cov nyhuv tiv thaiv ntawm lub hauv paus steel. Thaum cov zinc txheej yog kiag li corroded, lub hauv paus hlau yog raug thiab pib xeb.
Common Scenarios:
Acid nag (pH < 5.6): Qhov no yog qhov feem ntau acidic kev hem thawj rau cov khoom siv galvanized sab nraum zoov. Acid nag nyob rau hauv industrialized cheeb tsam tuaj yeem maj mam thiab tsis tu ncua corrode zinc txheej.
Kev lag luam ib puag ncig: Cov huab cua muaj cov kua qaub xws li sulfur dioxide (SO₂) thiab hydrogen chloride (HCl). Cov no yaj nyob rau hauv cov zaj duab xis dej los tsim cov kua qaub, accelerating corrosion.
Cov cheeb tsam ntug hiav txwv: Txawm hais tias cov dej hiav txwv yog me ntsis alkaline, ntsev (sodium chloride) tuaj yeem ua rau cov zinc passivation zaj duab xis puas thiab tsim cov electrolyte rau saum npoo, txhawb electrochemical corrosion. Tidal thaj chaw kuj tseem tuaj yeem tsim cov tshuaj acidic vim yog decomposition ntawm cov organic teeb meem.
Kev sib cuag ncaj qha nrog cov tshuaj Acidic: Piv txwv suav nrog kev lag luam tshuaj lom neeg thiab cov chaw tsim khoom roj teeb.
Cov ntsiab lus: Galvanized coils yuav tsum tsis txhob sib cuag nrog cov kua qaub los yog cov kua qaub heev.
2.Yuav ua li cas yog zinc resistant rau alkali?
Zinc muaj corrosion kuj zoo rau alkaline daws nyob rau hauv chav tsev kub, tshwj xeeb tshaj yog thaum tus nqi pH nyob nruab nrab ntawm 8 thiab 12, thiab nws muaj peev xwm tsim ib tug ruaj khov zaj duab xis tiv thaiv. Txawm li cas los xij, thaum nws ntsib concentrated, kub alkaline daws, zinc kuj yuav corroded thiab tsim zincates soluble.
Qhov tshwm sim: Nyob rau hauv ib puag ncig me me alkaline (xws li cov pob zeb thiab cov dej lime), cov zinc txheej ruaj khov heev thiab tseem muab kev tiv thaiv ntev ntev. Qhov no yog vim li cas galvanized rebar thiab brackets tuaj yeem siv rau hauv kev sib cuag ncaj qha nrog pob zeb.
Common Scenarios:
Ib puag ncig pob zeb: Cov pob zeb tshiab yog cov alkaline heev (pH tuaj yeem ncav cuag 12-13), tab sis cov zinc txheej sai sai tsim cov yeeb yaj kiab tiv thaiv insoluble ntawm nws qhov chaw, tiv thaiv kev tshwm sim ntxiv. Qhov no yog qhov laj thawj tseem ceeb rau kev siv cov khoom siv galvanized thoob plaws hauv kev tsim kho.
Tsis muaj zog alkaline av los yog dej.
3.Yuav ua li cas cov zinc txheej ua nyob rau hauv ib tug nruab nrab ib puag ncig?
Zoo heev: Ib qho yooj yim zinc carbonate tiv thaiv zaj duab xis yog tsim rau ntawm zinc nto, thiab tus nqi corrosion yog qeeb heev.
4.Dab tsi yog qhov corrosion kuj ntawm zinc txheej hauv alkaline ib puag ncig (pH 8-12)?
Zoo rau zoo heev. Muaj peev xwm tsim ib zaj duab xis passive ruaj khov nrog zoo corrosion kuj. Tshwj xeeb tshaj yog haum rau kev ua vaj tse ib puag ncig
5.Dab tsi yog qhov cuam tshuam rau daim ntawv thov ntawm photovoltaic brackets?
Nyob rau hauv ib puag ncig atmospheric: Lub corrosion kuj ntawm galvanized brackets (feem ntau yuav tsum tau ib tug zinc txheej thickness ntawm ntau tshaj los yog sib npaug zos rau 60-80μm) tuaj yeem ua tau raws li cov qauv tsim rau ntau tshaj 25 xyoo.
Acid Rain/Industrial Areas: Nyob rau hauv cov cheeb tsam no, lub neej ntawm galvanized brackets luv luv. Nws yog ib qho tsim nyog los xaiv cov zinc txheej tuab (piv txwv li, 100g / m² lossis ntau dua) lossis zinc - txhuas- magnesium txheej, vim tias tom kawg muaj kev tiv thaiv zoo dua los txiav - ntug corrosion thiab qeeb qeeb corrosion tus nqi.
Cov ntug hiav txwv dej: Txawm hais tias cov dej hiav txwv yog alkaline, chloride ion corrosion yog qhov kev txhawj xeeb tseem ceeb. Ib txheej zinc tuab lossis zinc-aluminium-magnesium txheej kuj raug pom zoo. Re-Zinc kev kho mob tej zaum yuav raug txiav thiab khawb thaum ua thiab kev teeb tsa.
Cov xwm txheej tshwj xeeb: Cov hlua khi yuav tsum raug tiv thaiv los ntawm kev sib cuag ncaj qha nrog cov dej khib nyiab thiab cov tshuaj tawm hauv cov chaw ua haujlwm.