Kev pleev xim galvanizing yog ib qho txheej txheem tseem ceeb hauv kev lag luam hlau, feem ntau yog siv los tiv thaiv hlau thiab hlau kom tsis txhob xeb. Los ntawm kev siv cov txheej txheem zinc tiv thaiv, kev pleev xim galvanizing ua rau cov khoom hlau siv tau ntev dua, ua rau lawv ruaj khov dua thiab haum rau ntau yam kev siv. Muaj peb txoj hauv kev tseem ceeb ntawm kev pleev xim galvanizing:kub-dip galvanizing, electro-galvanizing, thiab zinc spraying. Txhua txoj kev muaj nws cov txheej txheem tshwj xeeb, qhov zoo, thiab daim ntawv thov, uas peb yuav tshawb nrhiav kom meej, suav nrog lub luag haujlwm ntawmcov kab galvanizing, cov qhov ziab, thiab cov dej ntws rov ua dua tshiab hauv cov hau kev no.
1. Kub-Dip Galvanizing
Kev galvanizing kub-dip yog txoj kev siv dav tshaj plaws ntawm galvanizing. Hauv cov txheej txheem no, cov hlau lossis cov khoom hlau raug muab tso rau hauv ib lub dab dej ntawm cov zinc molten ntawm qhov kub li ntawm 450 ° C (842 ° F). Cov txheej txheem pib nrog kev npaj qhov chaw, uas yog qhov tseem ceeb rau kev ua kom muaj kev sib txuas zoo ntawm zinc thiab cov hlau. Kev npaj no feem ntau cuam tshuam nrog kev ntxuav cov hlau kom tshem tawm cov xeb, roj, lossis cov khoom tsis huv, feem ntau siv kev sib xyaw ua ke ntawm cov txheej txheem tshuab thiab tshuaj lom neeg.
Thaum npaj qhov chaw lawm, cov hlau raug muab tso rau hauv cov zinc uas yaj. Cov cua sov los ntawm cov zinc uas yaj ua rau muaj kev cuam tshuam txog hlau, tsim cov txheej txheem sib xyaw zinc-hlau uas sib txuas zoo rau cov hlau. Tom qab cov txheej txheem dipping, cov khoom galvanized raug tshem tawm thiab cia kom txias, thaum lub sijhawm ntawd cov zinc khov thiab tsim cov txheej tiv thaiv.
Lub Luag Haujlwm ntawm Cov Kab Galvanizing: Hauv kev kub-dip galvanizing, cov kab galvanizing yog qhov tseem ceeb. Cov kab no yog cov chaw tsim khoom tshwj xeeb uas ua kom tag nrho cov txheej txheem galvanizing yooj yim dua, txij li kev npaj nto mus rau theem kawg txias. Lawv feem ntau suav nrog cov tshuab tsis siv neeg rau kev ntxuav, fluxing, thiab dipping, kom ntseeg tau tias muaj kev ua haujlwm zoo thiab sib xws hauv cov txheej txheem txheej.
Qhov Chaw Ziab Khaub NcawsTom qab ua tiav cov txheej txheem ntxuav, cov khoom hlau feem ntau raug muab tso rau hauv qhov chaw ziab. Cov kauj ruam no tseem ceeb heev vim nws ua kom ntseeg tau tias cov dej noo seem raug tshem tawm ua ntej cov khoom raug muab tso rau hauv cov zinc uas yaj. Lub qhov ziab uas tau saib xyuas zoo pab tiv thaiv cov teeb meem hauv cov txheej txheem galvanizing, xws li teeb meem zinc lo lossis txheej tsis sib xws.
2. Kev Siv Hluav Taws Xob Galvanizing
Electro-galvanizing, lossis electroplating, yog lwm txoj hauv kev los siv cov txheej zinc rau hlau. Tsis zoo li hot-dip galvanizing, cov txheej txheem no siv cov kua electrolytic uas muaj cov ntsev zinc. Cov khoom hlau raug muab tso rau hauv cov kua no thiab txuas nrog lub zog fais fab, uas ua rau cov zinc ions txav mus los thiab tso rau ntawm qhov chaw ntawm cov hlau.
Cov txheej txheem electro-galvanizing ua rau cov txheej nyias dua thiab sib npaug dua piv rau kev kub-dip galvanizing. Txoj kev no yog qhov zoo tshaj plaws rau cov ntawv thov uas xav tau qhov tiav du, xws li hauv cov khoom siv hauv tsheb lossis cov khoom siv hluav taws xob. Txawm li cas los xij, cov txheej txheem feem ntau tsis ruaj khov dua li qhov tsim los ntawm kev kub-dip galvanizing, ua rau nws tsim nyog dua rau cov ntawv thov sab hauv tsev lossis cov chaw uas muaj kev raug tsawg dua rau cov khoom corrosive.
Kev Ua Dua Tshiab ntawm Fluxing TankHauv kev siv hluav taws xob-galvanizing, kev siv cov tshuaj fluxing tank rov ua dua yog ib qho tseem ceeb heev. Cov tshuaj fluxing yog siv los npaj cov hlau thiab txhim kho qhov nplaum ntawm cov txheej zinc. Tom qab cov txheej txheem electro-galvanizing, cov tshuaj fluxing yuav tsum tau rov ua dua kom nws ua haujlwm tau zoo thiab xyuas kom meej tias muaj cov txiaj ntsig zoo sib xws. Qhov no suav nrog kev lim thiab rov ua kom cov tshuaj fluxing rov qab zoo dua los ua kom cov txheej txheem txheej zoo dua.
3. Tshuaj tsuag zinc
Kev txau zinc, tseem hu ua kev txau thermal lossis metallizing, yog ib txoj kev uas cuam tshuam nrog kev txau cov zinc molten rau ntawm qhov chaw ntawm cov hlau. Cov txheej txheem no tuaj yeem ua tiav los ntawm ntau txoj kev, suav nrog kev txau nplaim taws lossis kev txau arc. Hauv kev txau nplaim taws, kev sib xyaw ntawm cov hmoov zinc thiab cov pa oxygen raug hlawv, tsim kom muaj nplaim taws uas yaj cov zinc thiab thawb nws mus rau ntawm lub substrate. Hauv kev txau arc, lub electric arc yaj cov hlau zinc, uas tom qab ntawd txau rau ntawm qhov chaw.
Kev txau zinc yog qhov tshwj xeeb tshaj yog rau cov qauv loj lossis cov khoom uas tsis yooj yim rau hauv cov zinc molten. Nws muab cov kev daws teeb meem yooj yim rau kev tiv thaiv cov chaw uas yuav nyuaj rau galvanize siv cov txheej txheem ib txwm muaj. Txawm li cas los xij, cov txheej txheem tsim los ntawm kev txau zinc feem ntau tuab dua thiab yuav xav tau cov txheej txheem tiav ntxiv kom ua tiav qhov chaw du.
Cov Kev Siv thiab Kev Xav Txog: Txhua txoj kev galvanizing muaj nws cov kev siv thiab kev xav txog tshwj xeeb. Kub-dip galvanizing yog qhov zoo tagnrho rau cov qauv sab nraum zoov, xws li cov choj thiab cov ncej hluav taws xob, qhov twg kev tiv thaiv xeb mus sij hawm ntev yog qhov tseem ceeb. Electro-galvanizing feem ntau siv rau hauv kev tsim tsheb thiab cov khoom siv hluav taws xob, qhov twg kev zoo nkauj thiab kev ua tiav du yog qhov tseem ceeb. Kev txau zinc yog qhov tsim nyog rau cov khoom loj lossis nyuaj, xws li lub nkoj lossis cov tshuab kev lag luam.
Xaus lus, peb txoj kev galvanizing—hot-dip galvanizing, electro-galvanizing, thiab zinc spraying—txhua txoj muaj cov txiaj ntsig thiab kev siv tshwj xeeb. Cov txheej txheem koom nrog, suav nrog kev siv cov kab galvanizing, cov qhov ziab, thiab kev rov ua dua lub tank fluxing, ua lub luag haujlwm tseem ceeb hauv kev ua kom zoo thiab ua haujlwm tau zoo ntawm cov txheej zinc. Kev nkag siab txog cov txheej txheem no tso cai rau cov chaw tsim khoom xaiv cov txheej txheem galvanizing tsim nyog tshaj plaws rau lawv cov kev xav tau tshwj xeeb, thaum kawg txhim kho qhov ruaj khov thiab lub neej ntev ntawm cov khoom hlau.
Lub sijhawm tshaj tawm: Lub Ob Hlis-26-2025