Yuav Ua Li Cas Txhim Kho Cov Ruaj Ruaj Ntawm Cov Ntawv Txias Rolled
Jul 09, 2021
Cov ntawv txias-dov tau dav siv hauv ntau qhov kev lag luam vim lawv cov khoom zoo heev thiab ntau yam kev siv. Txawm li cas los xij, ib qho ntawm cov teeb meem uas cuam tshuam nrog cov ntawv txias-kuav los tiag yog lawv qhov cuam tshuam rau xeb thiab xeb, uas tuaj yeem cuam tshuam rau lawv cov kev ua tau zoo thiab kev ua neej nyob. Txhim kho cov xeb tiv thaiv ntawm cov ntawv txias-kuav los tiag yog qhov tseem ceeb los xyuas kom meej lawv cov kav ntev thiab kev ntseeg siab nyob rau hauv ntau qhov chaw.
Ib txoj hauv kev zoo los txhim kho cov xeb tiv thaiv ntawm cov ntawv txias dov yog los ntawm kev kho deg. Galvanization yog ib txoj kev ua haujlwm uas feem ntau siv cov zinc txheej rau saum npoo ntawm daim ntawv. Cov zinc txheej no ua raws li cov txheej txheem kev txi, corroding nyiam nyob rau hauv lub xub ntiag ntawm noo noo thiab oxygen, yog li tiv thaiv lub hauv paus hlau. Kub-dip galvanization thiab electro-galvanization yog ob txoj hauv kev, txhua tus muaj nws tus kheej zoo thiab tsim nyog nyob ntawm daim ntawv thov.
Lwm qhov kev xaiv kho mob saum npoo yog txheej cov ntawv txias-kuav los tiag nrog cov organic coatings xws li pleev xim lossis hmoov txheej. Cov txheej txheej no tsim ib qho kev thaiv uas tiv thaiv kev sib cuag ncaj qha ntawm cov hlau thiab ib puag ncig, txo qhov kev pheej hmoo ntawm xeb tsim. Kev xaiv ntawm cov khoom siv txheej yog nyob ntawm cov yam ntxwv xws li kev ua haujlwm, kev xav kom zoo nkauj, thiab qib kev tiv thaiv xav tau.
Cov tshuaj hloov pauv tshuaj, xws li chromate conversion coatings lossis phosphate coatings, kuj tuaj yeem siv los txhim kho cov xeb. Cov txheej txheem no hloov kho qhov chaw chemistry ntawm cov hlau, muab cov txheej txheem ruaj khov thiab tiv thaiv ntau dua.
Ntxiv nrog rau kev kho saum npoo, cov ntsiab lus alloying tuaj yeem muab ntxiv rau cov hlau muaj pes tsawg leeg thaum lub sijhawm tsim khoom los txhim kho nws qhov kev tiv thaiv xeb. Cov ntsiab lus xws li chromium, npib tsib xee, thiab molybdenum tuaj yeem txhim kho lub peev xwm passivation ntawm cov hlau nto, tsim cov txheej tiv thaiv oxide uas inhibits xeb tsim.
Kev khaws cia kom zoo thiab tuav cov ntawv txias-kuav los tiag yog qhov tseem ceeb los tiv thaiv xeb. Khaws cov ntawv nyob rau hauv qhov chaw qhuav thiab zoo-ventilated, deb ntawm qhov chaw ntawm cov dej noo thiab corrosive, tuaj yeem txuas ntxiv lawv lub sijhawm tsis muaj xeb. Kev siv cov khoom desiccants lossis cov khoom nqus dej noo hauv cov thawv ntim khoom kuj tseem tuaj yeem pab tswj qhov chaw tsis muaj av noo.
Siv cov tshuaj tiv thaiv xeb lossis cov tshuaj tiv thaiv corrosion yog lwm txoj hauv kev. Cov tshuaj no tuaj yeem siv tau ua kua lossis vapor thiab tsim cov yeeb yaj kiab tiv thaiv ntawm cov ntawv txias-kuav los tiag.
Kev tshuaj xyuas tsis tu ncua thiab kev saib xyuas ntawm cov ntawv coated lossis kho cov ntawv txias-dov yog qhov tseem ceeb. Kev tshawb pom ntxov ntawm kev puas tsuaj lossis kev puas tsuaj ntawm cov txheej tiv thaiv tso cai rau kev kho kom raws sijhawm lossis rov kho dua, tiv thaiv qhov pib ntawm xeb.
Kev tu lub ntsej muag thiab kev kho mob ua ntej ua ntej siv cov txheej tiv thaiv lossis kev kho mob yog qhov tseem ceeb. Tshem tawm cov khoom paug, roj, thiab oxides ntawm qhov chaw ua kom zoo dua adhesion thiab kev ua tau zoo ntawm kev tiv thaiv xeb tom ntej.
Qee qhov xwm txheej, siv cov ntaub ntawv qib siab lossis kev sib txuas ntawm ntau txoj kev tiv thaiv xeb tuaj yeem muab kev tiv thaiv zoo dua. Piv txwv li, kev sib txuas galvanization nrog cov xim pleev xim pleev xim los yog siv cov txheej txheem ntau yam nrog cov haujlwm sib txawv tuaj yeem ua rau muaj kev xeb zoo dua.
Kev xaiv ntawm txoj kev tiv thaiv xeb tsim nyog nyob ntawm ntau yam xws li kev siv qhov kawg ntawm daim ntawv thov, ib puag ncig, kev xav txog tus nqi, thiab kev cia siab rau lub neej ntawm cov ntawv txias-dov.
Nws tseem yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev tshawb fawb tsis tu ncua thiab kev txhim kho hauv thaj chaw ntawm cov cuab yeej tiv thaiv xeb yog niaj hnub muab cov kev daws teeb meem tshiab thiab txhim kho. Ua raws li cov kev nce qib no thiab siv txoj hauv kev uas tsim nyog tshaj plaws raws li cov kev xav tau tshwj xeeb tuaj yeem ua kom lub sij hawm ntev xeb tsis kam ntawm cov ntawv txias-dov.
Hauv kev xaus, kev txhim kho cov xeb tiv thaiv ntawm cov ntawv txias-kuav los tiag yuav tsum muaj kev sib xyaw ua ke ntawm kev kho kom zoo, kev hloov kho alloying, kev cia thiab tuav kom zoo, thiab kev saib xyuas tsis tu ncua. Los ntawm kev siv cov tswv yim no, kev ua tau zoo thiab ua haujlwm ntev ntawm cov ntawv txias-dov tuaj yeem txhim kho tau zoo, ua kom lawv ntseeg tau siv ntau yam kev siv.
Vam tias qhov kev sib tham ntxaws no muab rau koj nrog kev nkag siab zoo txog yuav ua li cas los txhim kho cov xeb tiv thaiv ntawm cov ntawv txias-dov.