Q: Dab tsi yog qhov sib txawv hauv cov qauv kev ua haujlwm ntawm kub-dip galvanizing thiab txias-dip galvanizing?
A: Cov ntsiab cai txawv kiag li. Kub-dip galvanizing, tseem hu ua kub-dip zinc plating, cuam tshuam ncaj qha rau galvanized coils, uas tau dhau los ua ntej xws li degreasing, pickling, thiab fluxing, rau hauv zinc molten ntawm kwv yees li 450 txog 480℃. Los ntawm cov tshuaj tiv thaiv metallurgical, zinc- hlau alloy txheej thiab txheej zinc ntshiab yog tsim rau ntawm cov hlau. Tag nrho cov txheej txheem no yog tshuaj lom neeg - metallurgical ua ke. Txias{10}}dip galvanizing, tseem hu ua electroplating, siv lub hauv paus ntsiab lus ntawm electrolysis ntawm chav tsev kub. Lub galvanized kauj yog muab tso rau hauv lub cathode nyob rau hauv ib tug zinc ntsev tov. Thaum siv hluav taws xob, zinc ions tau tso rau ntawm qhov chaw cathode los tsim cov zinc txheej. Qhov no yog physico-electrochemical deposition txheej txheem thiab tsis koom nrog siab{15}}kub melting cov tshuaj tiv thaiv. Hauv luv luv, kub-dip galvanizing cia siab rau "immersion" thiab "tshuaj lom neeg cov tshuaj tiv thaiv," thaum txias-dip galvanizing cia siab rau "hluav taws xob" thiab "deposition."
Q: Dab tsi yog qhov txawv ntawm txheej thickness thiab microstructure ntawm ob txheej txheem?
A: Kub-dip galvanizing ua rau cov txheej tuab, feem ntau ntawm 30 thiab 60 micrometers, thiab tshwj xeeb tshaj yog tshaj 100 micrometers. Qhov tseem ceeb tshaj, zinc- hlau alloy compound txheej muaj nyob nruab nrab ntawm kub -dip galvanized txheej thiab steel substrate. Cov qauv no tso cai rau cov zinc txheej ruaj khov "loj hlob" mus rau cov hlau nto, uas sawv cev rau ib daim ntawv cog lus metallurgical. Txias-dip galvanizing ua rau cov txheej txheej nyias nyias, nrog cov txheej txheem txheej txheem sib txawv ntawm 5 txog 15 micrometers. Nyob rau hauv txias-dip galvanizing, zinc atoms ua raws li cov hlau strip nto lub cev, tsis muaj txheej txheej alloy. Microscopically, kub-dip galvanizing muaj cov txheej tuab dua thiab muaj kev sib txuas ntau dua, thaum txias-dip galvanizing tsis muaj cov qauv txhawb nqa. Qhov no yog qhov laj thawj tseem ceeb rau qhov sib txawv ntawm lawv cov corrosion kuj.
Q: Yuav ua li cas tseem ceeb yog qhov txawv ntawm corrosion kuj thiab corrosion lifespan ntawm ob txheej txheem?
A: Kub-dip galvanizing muaj qhov zoo dua corrosion kuj piv rau txias galvanizing, los ntawm ntau npaum li kaum tawm zaus. Kub-dip galvanizing tsim cov txheej tuab nrog txheej txheej alloy, tsis yog tsuas yog lub cev thaiv tab sis tseem ceeb tshaj, kev tiv thaiv cathodic. Thaum lub txheej yog ib feem puas, nthuav tawm cov hlau substrate, ib puag ncig zinc, nrog nws cov peev xwm qis, corrodes nyiam, tiv thaiv cov hlau substrate los ntawm xeb. Qhov no tus kheej - kho vaj tse zoo heev ua rau kev tiv thaiv lub neej ntev. Electro-galvanizing, ntawm qhov tod tes, muaj txheej nyias nyias yam tsis muaj txheej txheej alloy. Thaum cov txheej txheej puas lawm, cov hlau substrate sai oxidizes thiab tsim cov xeb liab. Hauv kev siv tswv yim, kub-dip galvanizing tuaj yeem nyob xeb{11}}dawb rau 10 mus rau 20 xyoo nyob rau hauv qhov hnyav sab nraum zoov, thaum electro{14}}galvanizing yuav xeb nyob rau hauv rau lub hlis mus rau ib xyoo nyob rau hauv tib yam. Txawm nyob hauv qhov chaw qhuav hauv tsev, electro{16}}galvanizing tsuas yog muab kev tiv thaiv luv luv.
Q: Dab tsi yog cov yam ntxwv ntawm cov tsos thiab tus nqi ntawm ob txheej txheej txheej?
A: Txias galvanizing ua rau ci, du nto nrog cov xim sib xws. Tom qab xim lossis dawb passivation, nws zoo nkaus li daj -ntsuab lossis xiav -dawb, muab cov khoom zoo nkauj zoo nkauj thiab ua rau nws zoo tagnrho rau cov khoom uas muaj qhov zoo nkauj zoo nkauj. Kub-dip galvanizing ua rau cov nyiaj- grey nto nrog me ntsis rougher xav, muaj peev xwm qhia cov kab ntawm zinc ntws los yog zinc paj crystals. Zuag qhia tag nrho, nws tsis yog ua kom zoo li txias galvanizing, tab sis cov paj zinc lawv tus kheej qhia cov tuab txaus. Hais txog tus nqi, txhua tus muaj nws lub zog: kub-dip galvanizing, vim nws siv zinc ntau dua thiab siv zog, muaj tus nqi pib dua me ntsis dua li electro-galvanizing; Txawm li cas los xij, los ntawm lub neej- voj voog txoj kev xav, kub-dip galvanizing muaj kev tiv thaiv corrosion zoo dua thiab yuav luag tsis muaj kev saib xyuas, ua rau qis dua tag nrho ntev- lub sij hawm tus nqi. Electro-galvanizing muaj tus nqi pib qis dua, tab sis vim nws lub voj voog tiv thaiv luv dua, nws yuav tsum tau hloov ntau zaus lossis rov ua dua txheej txheej tiv thaiv, ua rau nws tsis tshua muaj nqi nyob rau lub sijhawm ntev.
Q: Dab tsi yog cov ntawv thov ntawm kub-dip galvanizing thiab txias-dip galvanizing? Cov neeg siv yuav tsum xaiv li cas?
A: Kub-dip galvanizing yog tsim rau cov haujlwm uas cuam tshuam nrog lub sijhawm ntev- sab nraum zoov raug, ib puag ncig corrosive heev, thiab cov uas xav tau cov nqi kho mob tsawg. Nws feem ntau suav nrog cov qauv hlau rau cov tsev, kev loj guardrails, lub zog xa hluav taws xob, cov chaw sib txuas lus, cov khoom siv tshuaj lom neeg, cov khoom loj - loj fasteners, kav dej kav dej, thiab lwm yam steel Cheebtsam siv sab nraum zoov lossis hauv ib puag ncig hnyav. Txias-dip galvanizing feem ntau haum rau qhov chaw nyob sab hauv tsev qhuav, cov ntawv thov uas xav tau kev zoo nkauj ntawm qhov chaw siab, thiab cov xwm txheej uas muaj peev nyiaj tsawg thiab luv luv - cov cai tiv thaiv lub sijhawm. Cov khoom lag luam muaj xws li cov khoom vaj khoom tsev, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov cuab yeej siv hluav taws xob, cov khoom siv rooj tog zaum, thiab cov khoom me me -size fasteners. Qhov kev xaiv pom zoo yog: yog tias cov khoom siv feem ntau yog siv sab nraum zoov, hauv thaj chaw ntug dej hiav txwv, lossis hauv thaj chaw muaj corrosive heev xws li cov nroj tsuag tshuaj, kub -dip galvanizing yuav tsum tau ua ntej; Yog tias cov khoom siv tsuas yog siv rau hauv qhov chaw qhuav hauv tsev thiab muaj qhov yuav tsum tau ua rau lub ntsej muag gloss thiab zoo ib yam, txias -dip galvanizing yog qhov kev xaiv tsim nyog dua.