1.Dab tsi yog lub hom phiaj thiab ua rau kev kho mob tsis zoo lossis tsis ua tiav?
Lub hom phiaj: txhawm rau txhim kho cov xeb tiv thaiv ntawm cov ntawv hlau galvanized, feem ntau cov galvanized coils tau txais kev kho "passivation" ua ntej tawm hauv lub hoobkas. This treatment applies an extremely thin, dense passivation film (usually containing or without chromium) to the zinc surface. Cov yeeb yaj kiab no zoo cais cov zinc ntawm huab cua thiab noo noo.
Teeb meem: Tsis sib npaug passivation kua concentration, tsis sib npaug ntawm cov tshuaj tsuag, qhov kub tsis zoo, lossis ziab tsis tiav tuaj yeem ua rau cov zaj duab xis passivation tsis tiav lossis ib nrab ploj. Yog tsis muaj lossis tsis muaj kev tiv thaiv tsis muaj zog, zinc txheej yuav nyiam tshaj tawm cov dej noo, ua rau cov pob daj daj.
2.Dab tsi yog qhov ua rau thiab tshwm sim ntawm residue ntawm txheej txheej?
Ua rau: Thaum lub sij hawm tom qab- galvanizing txheej txheem txias, yog tias cov dej siv tsis huv (muaj cov impurities xws li chloride ions thiab hlau ions), cov impurities yuav nyob twj ywm rau saum npoo ntawm txheej, ua qhov pib ntawm kev nqus dej thiab corrosion.
Cov tsos mob: Cov pob daj no feem ntau tshwm sim raws li cov ntiv tes, dej stains, lossis pob.
3.Dab tsi yog vim li cas cov zinc txheej nws tus kheej tsis huv?
Yog tias cov hlau tsis huv ntau dhau los yog lwm cov khoom hlau sib xyaw rau hauv cov tshuaj galvanizing (zinc lauj kaub), cov tshuaj lom neeg ntawm cov txheej txheem nws tus kheej yuav tsis ruaj khov, ua rau nws muaj feem cuam tshuam rau galvanic corrosion thiab ua rau daj me ntsis tshwm sim ntxov ntxov.
4.Dab tsi yog qhov inducing yam nyob rau hauv qhov chaw cia thiab thauj mus los?
Humid Ib puag ncig
Qhov no yog qhov ncaj tshaj qhov ua rau. Zinc ruaj khov nyob rau hauv cov huab cua qhuav, tab sis nyob rau hauv siab - kub, siab - av noo ib puag ncig, nws reacts nrog ya raws thiab oxygen los ua dawb zinc oxide. Qhov no reacts ntxiv nrog carbon dioxide thiab lwm yam khoom, thaum kawg tsim daj zinc hydroxide los yog zinc carbonate.
Condensation ("Inner Rust")
Cov tsos mob: Qhov no yog ib qho xwm txheej heev. Thaum galvanized coils raug thauj los ntawm ib puag ncig sov mus rau lub tsev khaws khoom txias, lossis thaum muaj qhov kub thiab txias sib txawv ntawm nruab hnub thiab hmo ntuj, "condensation" ua rau hauv cov coils.
Qhov tshwm sim: Vim tias cov galvanized coils yog nruj nreem kaw, qhov condensation no yog daig ntawm cov khaubncaws sab nraud povtseg thiab tsis tuaj yeem evaporate. Ntev - lub sij hawm raug rau cov zinc txheej tuaj yeem ua rau loj, tsis tu ncua qhov chaw, watermark-xws li pob daj lossis xeb dawb.
Tiv tauj nrog cov tshuaj Corrosive
Qhov chaw muaj kuab paug: Cia nyob rau hauv ib puag ncig uas muaj acidic gases, ntsev (xws li nyob rau hauv lub ntug dej hiav txwv cheeb tsam), chloride ions, industrial pollutants, thiab lwm yam yuav ua rau kom corrosion ntawm zinc txheej.
5.Qhov kev tiv thaiv yog dab tsi?
Cov neeg tsim khoom: Yuav tsum muaj siab - zoo passivation thiab xyuas kom meej cov dej txias.
Cia:
Khaws rau hauv qhov chaw txias, qhuav, zoo -ventilated sab hauv tsev warehouse.
Tsis txhob cia nrog cov khoom corrosive.
Siv ntoo qhuav ntawm coils kom tsis txhob muaj kev sib cuag nrog hauv av.
Yog tias qhwv nrog zaj duab xis, xyuas kom cov huab cua sab hauv qhuav los yog siv cov khoom ntim tshwj xeeb nrog lub vapor theem xeb inhibitor.