1.Dab tsi yog txoj cai tiv thaiv -corrosion ntawm galvanized kauj?
Txoj cai tiv thaiv corrosion ntawm galvanized coils yog "sacrificial anode" tiv thaiv. Zinc yog tshuaj lom neeg ntau dua li hlau. Thaum cov zinc txheej yog siv rau cov hlau substrate, yog tias electrochemical corrosion tshwm sim, zinc ua raws li anode thiab corrodes ua ntej, thaum cov hlau ua raws li cathode, muab kev tiv thaiv. Tsuav cov zinc txheej tsis tas siv tag, cov hlau yuav tsis xeb.
Raws li lub hauv paus ntsiab lus no, cov zinc txheej tuab txhais tau hais tias zinc muaj ntau dua rau "kev txi," thiab lub sijhawm yuav tsum tau noj cov zinc no ntxiv, yog li txuas ntxiv lub neej ntawm kev tiv thaiv corrosion tag nrho.
2.Yuav ua li cas xam tus qauv lifespan?
Zinc txheej thickness: Qhov no feem ntau yog qhia hauv grams ib square meter. Piv txwv li, Z100 qhia txog zinc txheej hnyav ntawm 100 grams ib square meter. Tus nqi no tseem tuaj yeem hloov mus rau qhov nruab nrab tuab hauv micrometers: kwv yees li 100 g / m²=14 µm.
Zinc corrosion tus nqi: Qhov no yog qhov sib txawv thiab nyob ntawm ib puag ncig.
3.Qhov sib xws thiab kev ncaj ncees ntawm cov zinc txheej cuam tshuam li cas rau nws txoj sia?
Uniformity: Lub neej ntev ntawm ib feem nyob ntawm qhov chaw zinc txheej yog thinnest. Yog tias cov zinc txheej tsis sib npaug, qhov chaw ua haujlwm ntxov ntxov tuaj yeem txo qhov kev ua haujlwm zoo ntawm tag nrho cov khoom.
Kev ncaj ncees: Zinc txheej tuaj yeem raug puas tsuaj thaum thauj thiab ua haujlwm (xws li txiav, stamping, thiab vuam) ntawm galvanized coils. Yog tias qhov chaw puas tau nthuav tawm cov hlau substrate, xeb yuav sai sai kis mus rau thaj tsam ib puag ncig. Yog li ntawd, kev ua haujlwm zoo thiab tom qab- kev txhim kho kev teeb tsa (xws li txau zinc- nplua nuj xim rau ntawm qhov chaw txiav) yog qhov tseem ceeb rau kev ua tiav txoj kev ua neej nyob.
4.Dab tsi cuam tshuam rau hom zinc txheej muaj rau lub neej ntev?
Ntshiab zinc txheej: Tus nqi corrosion kuj yog qhov ruaj khov, thiab kev kwv yees lub neej yog qhov tseeb.
Zinc- hlau alloy txheej: Qhov saum npoo yog grey tsaus thiab yog tsim los ntawm cov txheej txheem diffusion los ua ib txheej txheej ntawm zinc thiab hlau. Cov txheej no nyuaj dua thiab hnav ntau dua- tiv taus, tab sis nws txia kev tiv thaiv ntawm tus nqi sib txawv me ntsis thiab sib txawv me ntsis dua li cov zinc txheej ntshiab, uas ua rau muaj qhov sib txawv corrosion hauv qee qhov chaw.
5.Dab tsi yog cov lus qhia xaiv cov khoom siv rau kev siv?
Txheeb xyuas qhov chaw npaj siv: Qhov no yog thawj kauj ruam tseem ceeb tshaj plaws. Xa mus rau lub rooj saum toj no txhawm rau txiav txim siab qhov chaw corrosive koj cov khoom yuav raug.
Siv lub neej tsim: Koj xav tau pes tsawg xyoo cov khoom no kav ntev yam tsis muaj xeb?
Kev sab laj cov qauv lossis ua kev suav: Cov qauv hauv tebchaws (xws li ISO, ASTM, thiab GB) muab kev taw qhia txog kev cia siab txog kev ua neej nyob ntawm zinc txheej ntawm cov thicknesses sib txawv nyob rau hauv qhov sib txawv atmospheric ib puag ncig. Kev kwv yees tuaj yeem ua tau siv cov qauv yooj yim piav qhia saum toj no.
Kev lag luam kev lag luam-tawm: Cov zinc txheej tuab ua rau tus nqi nce. Nrhiav qhov zoo tshaj qhov sib npaug ntawm tus nqi pib ntawm cov khoom siv thiab ntev - cov nqi tu / khoom lifespan.