1.What yog qhov sib txawv ntawm cov tub ntxhais anti - corrosion mechaism ntawm ob?
Passivation kev kho kom ntseeg tau tsuas yog "passive sib cais." Tshuaj lom neeg cov tshuaj tiv thaiv (xws li chromates thiab chromium- Cov yees duab uas tsis tshua muaj roj (passiver- rolled steel thiab txhuas). Qhov no yog sib npaug rau "txheej qhov yeeb yaj kiab ntom ntom" ntawm lub substrate nto, uas tsuas thaiv corrosive media xws li oxygen los ntawm kev tiv toj ntawm substrate. Thaum zaj duab xis puas ntsoog, cov media tshaj tawm ncaj qha rau lub substrate thiab kis nrawm los ntawm thaj chaw puas.
Galvanized coils siv ib qho kev sib cais ntawm lub cev "ntawm lub cev + kev tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv." Ua ntej, cov txheej zinc txheej nws tus kheej yog cov txheej av hlau, uas tuaj yeem cais cov xov xwm zoo li cov yeeb yaj kiab passive. Qhov tseem ceeb tshaj, zinc muaj qis dua electrode peev xwm tshaj li cov hlau (lub substrate). Thaum lub zinc txheej yog ib nrab puas, ua rau lub substrate, zawv zawg ua rau muaj kev tiv thaiv cov hlau "uas tiv thaiv xeb ntawm lub substrate txawm tias zaj duab xis tau tawg.
2.What yog qhov sib txawv hauv lawv txoj kev tawm tsam rau kev puas tsuaj rau kev puas tsuaj?
Kev Kho Mob Passive: Tus Passivation zaj duab xis yog lub ntsej muag daj tau tsim los ntawm kev hloov pauv hloov tshiab thiab tsis muaj txiaj ntsig. Kev sib txhuam me me (xws li thaum cov neeg ua haujlwm sib tsoo sib tsoo sib tsoo), khoov (xws li muaj cov ntiv tes sib kis tau tuaj yeem ua rau cov yeeb yaj kiab rau tev lossis tawg. Thaum puas, nws poob nws txoj haujlwm tiv thaiv thiab tsis tuaj yeem kho nws tus kheej.
Galvanized chev: txheej zinc txheej (tshwj xeeb tshaj yog kub (}}} Nws tuaj yeem deform nrog me ntsis khoov thiab stamping ntawm cov substrate (xws li nyob rau hauv lub tsev ntawm cov khoom siv hauv tsev) thiab tsis yog yooj yim. Txawm hais tias lub zinc txheej yog hauv zos los ntawm kev cuam tshuam me, seem zinc tiv thaiv kev txhawj xeeb ntawm "kev tiv thaiv, tshem tawm cov kev txhawj xeeb ntawm tsis ua haujlwm vim kev puas tsuaj.
3.Qhov dab tsi yog qhov sib txawv ntawm lawv cov chaw muaj peev xwm?
Kev Kho Mob Passivation tsuas yog tsim nyog rau qis - corrosion cov ntawv thov uas feem ntau muaj kev puas tsuaj sab nraud, feem ntau suav nrog:
Me me kho vajtse (xws li screws thiab wasters) hauv cov chaw qhuav hauv tsev;
Ua rau cov khoom siv hluav taws xob (xav tau ib txheej nyias nyias kom tsis txhob ua kom tsis txhob muaj kev cuam tshuam);
Raws li kev tiv thaiv ib ntus (piv txwv li, luv-}}}}}}}}} yuav tsum tau ua xws li pleev xim lossis galvanizing).
Yog tias siv cov chaw ua noj sab nraud (xws li chav ua noj thiab chav dej), xws li cov duab plaub ntug yuav ua kom sai thiab poob, thiab lub substrate yuav xeb tsis pub dhau 1-2 xyoos.
Galvanized Chev: Nws tuaj yeem them rau ntau cov ntawv thov, los ntawm sab hauv tsev ib puag ncig sab nraud, feem ntau suav nrog:
Cov tsev sab nraum zoov: Colour {{- coated steel los xij, thiab kev tiv thaiv kev tiv thaiv nag thiab UV rays);
Cov puag ncig cua noo: cov tshuab ntxhua khaub ncaws (xws li cov tshuab ntxhua khaub ncaws thiab cov tub yees txias) thiab cov chassis ntawm av nkos (los tiv thaiv av thiab dej);
Lub Teeb Ntsev Ntsev Tshuaj Tsuag Thaj Chaw: Yooj yim lub Hoobkas steel steel qauv thiab lub tsev nyob rau hauv ntug hiav txwv (zinc txheej citting ntsev pov tseg).
Qhov no dual corrosion tiv thaiv mechanism sib ntsib ntawm kev tiv thaiv corrosion tau raws cov ntawv thov thiab muaj kev lag luam ntau tshaj plaws.
4.What yog qhov sib txawv hauv kev ua cov khoom siv tau ntawm ob?
Kev Kho Mob Passivation: Vim tias cov neeg ua haujlwm passive ua yeeb yaj kiab yog qhov yooj yim yuav tsum tau ua ntej ua ntej, "yuav tsum tau ua ntej ua tiav" Txawm li cas los xij, txoj haujlwm no tuaj yeem ua rau cov zaj duab xis pass ntawm cov npoo / Weld ntsiab lus, tsim nyog rau kev ntxiv rau cov chaw ua haujlwm. Qhov no yog qhov ua rau cov txheej txheem nyuaj thiab nyuaj los xyuas kom muaj kev npog tes ua yeeb yaj kiab tom qab rov qab los tom qab} ua ntej.
Galvanized Chev: Cov txheej zinc yog duclile yog ducer, cia cov kauj hauv cov cuab yeej siv, khoov rau cov neeg saib xyuas cov khoom siv, lossis vuam hlau rau hauv cov qauv steel. Tom qab ua tiav, cov txheej zinc tsuas yog kev puas tsuaj me ntsis ntawm Weld ntsiab lus muab kev tiv thaiv electrochemical, tshem tawm cov kev xav tau ntxiv los tiv thaiv kev kho mob. Qhov no yooj yim ua kom yooj yim cov txheej txheem ntau lawm thiab txhim kho kev ua tau zoo.
5.Qhov twg yog qhov sib txawv ntawm cov khoom xyaw thiab cov nqi ua haujlwm ntawm ob?
Passivation: Tus nqi pib tsawg (tsawg tshuaj reagent thiab txheej txheem yooj yim), tab sis siab txij nkawm cov nqi thiab lub neej luv. Cov ntawv thov sab nraum zoov xav tau re 1- bendivation txhua 1 {{{3 xyoos, ua rau siab ntev- term cov nqi. Qhov no ua rau nws haum rau kev siv luv luv nrog cov kev tiv thaiv kev tiv thaiv corrosion tsawg (xws li cov khoom siv pov tseg).
Galvanized Chev: Kev Nyog Tus Nqi Siv (Zinc Khoom Siv Zis) piv rau passivation, tab sis zoo nkauj {- kav. Kev siv sab nraum zoov kav ntev 15 - 25 xyoo tsis muaj re{} {} - 60% ntawm qhov passivation. Qhov no ua rau nws haum tshwj xeeb rau lub sijhawm ntev, txij nkawm / xws li khoom siv thiab tsev kev tsim kho).