1.What yog qhov ua rau muaj xeb dawb?
Cov nyhuv txuas ntxiv ntawm cov av noo
If the surface of the galvanized layer is in a high humidity environment (relative humidity>85%) Rau lub sijhawm ntev, noo noo yuav ua cov yeeb yaj kiab dej ntawm cov nplaim dej. Thaum oxygen, carbon dioxide lossis lwm yam impurities (xws li ntsev thiab hmoov av) hauv huab cua yog "electrolyste corrosion. Zinc ua raws li anode thiab undergoes ib oxidation oxidation reawer: Zn {{}} → → →
Lub generated zinc ions ua ke nrog Oh⁻ hauv dej zaj duab xis los ua zinc hydroxide, thiab thaum kawg pom tias yog cov khoom dawb thiab xoob xoob (xim dawb).
Residant noo noo tsis raug tshem tawm hauv lub sijhawm
Yog hais tias cov galvanized ntu tsis yog qhuav tom qab kev ua tiav, cov dej noo seem ntawm cov npoo yuav dhau los ua qhov pib ntawm corrosion;
Thaum condensed dej tau ntsib thaum lub sij hawm cia lossis tsheb thauj mus los, noo noo accumulates nyob rau saum npoo thiab tsis tau yooj yim ua rau muaj kev xeb hauv nroog.
Lub xub ntiag ntawm corrosive media
Gases xws li sulfur dioxide thiab hydrogen sulfide hauv cov huab cua hauv av, lossis ua kom nrawm rau cov electrolyte thiab ua kom muaj kev txhim kho corrosion;
Hu nrog kua muaj cov kua qaub, thiab ntsev yuav ncaj qha rau cov zaj duab xis nyob saum npoo ntawm zinc txheej thiab ua rau muaj xeb zinc.
2.What yog tus tiv thaiv kev ntsuas rau cov xeb dawb?
Tswj ib puag ncig cov av noo thiab qhov cua
Cov chaw ntim khoom khaws cia cov chaw galvanized yuav tsum muaj ventilated thiab txheeb ze cov av noo yuav tsum tau tswj hwm hauv qab 60%;
Dehumidififiers yuav siv tau nyob rau hauv cov chaw noo kom tsis txhob muaj cov ntoo khov kho ncaj qha rau hauv av lossis cov pallets) los tiv thaiv av noo noo kev yaig.
Xyuas kom meej saum npoo yog qhuav thiab huv
Galvanized qhov chaw yuav tsum tau muab kom huv si tom qab ua (xws li cua sov kom qhuav, ntuj ziab) kom tsis txhob muaj kev noo noo;
Ua ntej kev thauj mus los lossis cia, tshem cov hmoov av, roj thiab lwm yam tsis txaus siab rau saum npoo los txo cov "cab kuj" tsim los ntawm electrolyte.
Lub Ntim Ntim Tiv Thaiv
Rau galvanized seem uas tau khaws cia lossis thauj khoom ntev, cov duab noo tsev lossis cov yeeb yaj kiab yas tuaj yeem siv rau cov tshuab ntim yas ntim tau rau cov huab cua kom cais thiab noo noo;
Nyob rau hauv ntug dej hiav txwv lossis cov cheeb tsam corrosive, xws li Silica Gel) tuaj yeem tso rau hauv cov ntim kom ntxiv txo cov av noo.
Ua kom tau zoo rau cov neeg ua hauj lwm thiab cov txheej txheem kev kho mob tom qab
Xyuas kom cov zaj duab xis hla: Tswj lub siab zoo, ntsuas kub thiab kho lub sijhawm uas passivation yog ib yam tsis zoo thiab tuab;
Rau cov khoom lag luam nrog cov kev xav tau zoo, ib txheej ntxiv ntawm cov kua roj vanish lossis tiv thaiv cov roj xeb tuaj yeem siv tau los ua cov txheej txheem ntawm cov xim pleev xim rau txheej txheej ntawm cov txheej galvanized).
Zam tsis muaj kev sib cuag nrog cov tshuaj corrosive
Galvanized cov chaw yuav tsum tau ceev tseg ntawm cov kua qaub thiab alkali daws teeb meem, cov av ntsev, thiab cov khoom lag luam pov tseg;
Zam kev sib cuag ncaj qha nrog kev sib chwv ntawm tes thaum thauj los tiv thaiv kom txhob muaj ntsev nyob hauv hws.
3.Yog li cas nrog rau cov muaj xeb dawb?
So maj mam nrog daim ntaub qhuav los yog txhuam kom tshem tawm cov hmoov xoob ntawm cov npoo;
Yog tias muaj cov kab laug sab laug, so nrog ib lub rag dhuav nyob rau hauv ib qho me me ntawm nruab nrab ntawm nruab nrab xab npum (xws li xab npus huv si thiab kom huv si;
Tom qab ziab, tshuaj tsuag ib txheej nyias nyias ntawm kev tiv thaiv roj lossis cov kua roj vanish los txhim kho kev tiv thaiv kev tiv thaiv.
4.Qhov nrog daws cov xeb uas muaj xeb?
Ua ntej, siv cov ntaub ntawv zoo nkauj lossis cov ntaub av abrasive mus rau maj mam tshem cov khoom xeb thiab nthuav tawm cov txheej tshiab galvanized;
Tom qab polishing, ntxuav cov nplaim dej lossis dej, ua rau kev kho passivation tom qab ziab, thiab tom qab ntawd siv cov roj xeb tiv thaiv xeb.
5.Txhua li cas nrog cov xeb tiag dawb?
Hauv qhov no, txheej galvanized tau poob nws cov nyhuv tiv thaiv thiab xeb yuav tsum tau muab pov tseg tag nrho;
Yog hais tias lub substrate yog nthuav tawm tom qab kev kho mob, nws yuav tsum tau rov qab galvanized los yog pleev xim rau cov xim xeb, txwv tsis pub cov hlau substrate yuav xeb ntev.