1. Kwv yees xim tuab ntawm cov txheej ruaj khov
Ib zaug tag nrho ruaj khov, qhov kev tiv thaiv pata ntawm cov huab cua hlau (xws li Q355, Corten - A, thiab lwm yam) yog qhov tseem ceeb.
Cov ntau yam:Lub txheej ruaj khov feem ntau yog nruab nrab50 txog 150 microns (0.05 mus rau 0.15 mm)tuab.
Txog Kev Xav:Qhov no yog kwv yees cov tuab ntawm ib daim ntawv lossis cov txheej txheem ntawm cov xim pleev xim. Nws yog ib txheej ntom heev, nruj nreem txheej uas tau muab cov ntsaws ruaj ruaj ntawm qhov chaw ntawm qhov chaw sai sai.
Cov Lus Tseem Ceeb:Thawj zaug, tsis khov xeb uas cov ntaub ntawv hauv thawj ob peb mais ob peb lub voj voog feem ntau yog ntau lub voluminous thiab tuaj yeem yog hmoov. Cov txheej txheej thaum pib no yog dab tsi hloov pauv thiab tau sib xyaw ua ke rau qhov kawg, ruaj khov patina.
2. Nws puas yuav poob?
Tsis yog, lub Patina ruaj khov yuav tsis "poob."Qhov no yog qhov tseem ceeb ntawm qhov xeb ntawm cov huab cua ntawm cov hlau thiab xeb ntawm cov roj carbon hlau.
Ntawm no yog vim li cas nws nyob tsis tau:
Ua raws li:Lub Patina ruaj khov yognrujmus rau hauv qab steel substrate. Nws yog ib feem tseem ceeb ntawm cov ntaub ntawv tiv thaiv, tsis yog cov txheej txheej txawv uas tuaj yeem tshem tawm lossis tev zoo li pleev xim.
Ntom ntom thiab qauv:Tus tseem ceeb ntawm cov txheej txheem ntawm cov txheej txheem tiv thaiv yogntom, tsis - porous oxides(zoo li goeesite, - feooh). Qhov qauv tuab no yog dab tsi blocks nkag mus nkag ntxiv ntawm cov pa thiab noo noo rau cov hlau hauv qab, ua kom qeeb qeeb tus nqi corrosion.
Tus kheej -} kev txiav txim siab:Thaum cov txheej txheej ntom no, cov xeb uas txo qis rau qib tsis zoo siab (feem ntau tsawg dua0.002 mm / xyooTom qab thawj ob peb xyoos). Cov hlau ua kom zoo "kho kom zoo" nws tus kheej nrog txoj kev tiv thaiv no.
Cov kev txiav txim siab tseem ceeb thiab "vim li cas" tom qab tus cwj pwm
Txhawm rau kom nkag siab txog qhov no, nws yog qhov pab tau rau kev pom cov txheej txheem thiab nws cov kev zam:
| Caij | Kev piav txog | Tus cwj pwm xeb |
|---|---|---|
| 1. Thaum pib xeb | Thawj zaug raug los nag / lwg. Xoob, muaj kev xeb nplua nuj (hematite, fe₂o₃) cov ntaub ntawv. | Yuav yog hmoov thiab yuav ntxuav tawm,Ua rau thawj zaug xeb -} khiav tawm. Nov yog theem ib ntus. |
| 2. Kev ruaj khov | Tshaj dhau rov qab ntub / qhuav mus los (feem ntau yog 3-6 xyoos), cov khoom siv alloy (Cu, P) kom tsim kev tsim cov txheej txheej hauv cov txheej. | Cov txheej uanruj nreem adherent thiab ruaj khov.Kev ua xeb tsis xeb. |
| 3. Ntev -} lub sij hawm ruaj khov | Cov tuab neeg Patina ntom ntom (mus rau, - feooh) tag nrho cov hlau. | Yuav tsis flake lossis poob tawm.Nws tiv thaiv cov hlau rau kaum tawm. |
Thaum twg muaj peev xwm xeb "poob tawm" lossis swb?
Lub patina tuaj yeem ua tau zoo nyob rau hauv cov xwm txheej tshwj xeeb, uas yuav luag txhua tus muaj feem xyuam rauTsis zoo tsim los yog tsis tsim nyog ib puag ncig:
Dej cuab:Yog tias tus qauv tsim nyog tso dej kom muaj pas dej ua ke lossis tseem nyob hauv kev sib cuag nrog cov pob qij txha (piv txwv li, tsis muaj noo noo tiv thaiv kev tsim ntawm lub patina ruaj khov. Thaj chaw no yuav txuas ntxiv rau corode ntawm tus nqi siab dua thiab tuaj yeem tsim cov xeb flaky.
Puas Txhob lossis Cuam Tshuam:Kev puas tsuaj ntawm lub cev los ntawm kev puas tsuaj tas li (piv txwv li, los ntawm pob zeb, tsheb, lossis cov xuab zeb uas yuav xeb thiab xav tau rov qab {{volililize.
Heev corrosive ib puag ncig:Nyob rau hauv ib puag ncig nrog qib siab ntawmtus kab chlorides(Nqaum hiav txwv tshuaj tsuag) lossisIndustrial Sulphur Teb, tshuaj muaj kev txhoj puab ntau yuav nkag mus rau lub patina thiab ua rau corrosion, muaj peev xwm ua rau thicker, fawm kib, txheej tawm (yaug tawm).
Hu nrog lwm cov ntaub ntawv:Yog tias huab cua hlau nyob hauv kev sib cuag nrog cov khoom siv nqus tau zoo li cov pob zeb ua kom tiv thaiv cov hlau los ntawm kev ziab corrosion, ua rau nrawm corrosion ntawm kev sib chwv.
