Views: 0 Author: Site Editor Publish Time: 2025-08-27 Keeb Kwm: Qhov chaw
Tswv yim: Ib txwm tshuaj xyuas cov galvanized steel coils tshiab kom muaj kev puas tsuaj. Kev saib xyuas kom zoo ntawm koj cov galvanized steel kauj tsis tsuas yog ua kom nws saib zoo tab sis kuj tseem txuas ntxiv ua haujlwm ntev ntawm koj cov haujlwm nrog peb lub tuam txhab.
Galvanized steel coils tsis xeb yooj yim. Qhov no yog vim lawv muaj zinc txheej. Cov zinc ua zoo li daim ntaub thaiv thiab ua kom cov hlau ruaj ntseg. Zinc txheej thaiv dej los ntawm kev kov
cov hlau. Yog tias cov txheej tau khawb, zinc tseem pab tiv thaiv xeb. Qhov no ua rau lub coil kav ntev. Tej yam xws li cua ntsev, muaj kuab paug, thiab huab cua ntub ua rau xeb tshwm sim sai dua. Yog li, qhov twg koj siv cov hlau tseem ceeb rau nws ntev npaum li cas. Kev ntxuav cov coils feem ntau pab kom lawv nyob zoo. Kev kuaj xyuas kev puas tsuaj thiab kho sai kuj tseem pab tau. Kev xaiv tus nqi ntawm zinc txheej yog qhov tseem ceeb. Khaws cov coils txoj kev yog ua kom lawv nyab xeeb. Qhov no pab tau lawv nyob ntev.
Yog tias koj nug yog tias galvanized steel xeb, koj xav tau cov lus teb yooj yim. Galvanized steel kauj tiv thaiv corrosion zoo, tab sis nws tseem tuaj yeem xeb. Cov zinc txheej ua haujlwm zoo li daim ntaub thaiv thiab ua kom xeb. Nyob rau tib lub sijhawm, tej yam xws li huab cua thiab kev puas tsuaj tuaj yeem hnav daim ntaub thaiv no. Nws yog ib qho tseem ceeb kom paub tias yuav ua li cas galvanizing nres xeb thiab yuav ua li cas los ntawm qhov zoo galvanized kauj nyob rau hauv ntau qhov chaw.
Cov zinc txheej ntawm galvanized coil ua rau muaj kev cuam tshuam ntawm cov hlau thiab cua. Qhov kev thaiv no khaws cov dej thiab oxygen, uas ua rau xeb. Yog tias koj xaiv zinc-coated steel, nws sawv los nag, av noo, thiab muaj kuab paug. Kub-dip galvanizing bonds zinc rau hlau, yog li txheej txheej kav ntau xyoo.
Cov kev tshawb fawb pom tias zinc txheej tau zoo dua nrog cov additives tshwj xeeb. Cov additives no ua rau cov txheej txheem muaj zog thiab zoo dua los tiv thaiv xeb. Piv txwv li, ntxiv ceria nanoparticles thiab polyaniline pab zinc tiv thaiv hlau los ntawm corrosion. Ib txoj kev tshawb nrhiav tau sim galvanized steel kauj los ntawm hiav txwv rau tsib xyoos. Thicker zinc coatings txo qhov kev pheej hmoo ntawm xeb liab thiab xim tev, tshwj xeeb tshaj yog ntawm cov npoo. Cov zinc txheej tsim cov yeeb yaj kiab thiab txwv tsis pub oxygen mus txog cov hlau.
Koj tuaj yeem pom tias ib puag ncig hloov pauv ntev npaum li cas galvanized kauj nyob rau hauv cov lus hauv qab no:
Ib puag ncig |
Lub Sijhawm Zoo Tshaj Plaws rau Rust los tshwm |
Tej yam tseem ceeb Environmental |
Cov Lus Qhia Txog Kev Kho Mob |
|---|---|---|---|
Ordinary Sab nraum zoov |
20 mus rau 50 xyoo |
Huab cua ntshiab, tsis muaj kuab paug |
Xyuas txheej thickness txhua 5 xyoos; yeem clear lacquer |
Ntug hiav txwv |
5 mus rau 15 xyoo |
Cov ntsiab lus ntsev hauv huab cua (ntsev ntsev) |
Tshawb xyuas ob zaug hauv ib xyoos (tseem ceeb rau welds / ntug); huv peb lub hlis twg |
Muaj kuab paug |
10 xyoo los yog tsawg dua |
Pollutants accelerate zinc hnav |
Nquag tshuaj xyuas thiab tu kom zoo |
Lus Cim: Kev tu thiab xyuas koj cov coil galvanized feem ntau tuaj yeem ua rau nws kav ntev dua. Yog tias koj tsis saib xyuas nws, xeb yuav tshwm sim sai dua, tshwj xeeb tshaj yog nyob rau hauv qhov chaw tawv.
Lub galvanized steel kauj tuaj yeem kav ntev li 20 txog 50 xyoo lossis ntau dua sab nraud hauv cov xwm txheej ib txwm muaj. Nyob rau hauv ntug dej hiav txwv los yog chaw ua lag luam, nws tsis kav ntev npaum li cas vim ntsev thiab tshuaj. Qhov zoo thiab txheej thickness yog qhov tseem ceeb. Thicker zinc txheej tiv thaiv zoo dua thiab kav ntev dua.
Hauv qhov chaw me me sab nraum zoov, galvanized steel tuaj yeem kav ntev dua 50 xyoo ua ntej xeb.
Hauv cov chaw nyuaj xws li ntug dej hiav txwv lossis chaw lag luam, nws yuav kav li 20 xyoo lossis tsawg dua.
Galvanized hlau tuaj yeem kav 50-100 xyoo hauv qhov chaw ib txwm muaj.
Hauv thaj chaw marine lossis industrial, nws kav 20-50 xyoo nrog kev saib xyuas.
Zinc txheej muab ob qho tib si thaiv thiab kev tiv thaiv los ntawm xeb.
Cov tshuaj lom neeg, dej, kev puas tsuaj, thiab cov av noo siab ua rau nws hnav sai dua.
Galvanized steel feem ntau kav 25 mus rau 50 xyoo.
Hauv qhov chaw hnyav tsawg, nws tuaj yeem kav ntev txog 75 xyoo.
Thicker zinc txheej tiv thaiv ntev dua.
Kev tu thiab cov coatings ntxiv pab kom nws kav ntev dua.
GI coils tuaj yeem kav ntev li 20 txog 50 xyoo lossis ntau dua hauv qhov qub, tsis muaj xeb.
Kev saib xyuas tsis tu ncua thiab txheej txheej ua kom nws kav ntev dua.
Tej zaum koj yuav xav tias yog vim li cas galvanized coil tiv thaiv hlau zoo li ntawd. Yog vim li cas yog lub sacrificial tiv thaiv mechanism. Zinc tsis tshua muaj txiaj ntsig dua li cov hlau, yog li nws xeb ua ntej. Yog hais tias zinc txheej tau khawb, zinc particles ua raws li kev txi anodes. Lawv muab cov electrons rau cov hlau thiab tsis txhob xeb hlau. Qhov no yog hu ua cathodic tiv thaiv.
Thaum zinc rusts, nws ua rau zinc oxide thiab hydroxycarbonate ntsev. Cov no ua ib zaj duab xis tuab, kho tus kheej ntawm cov hlau. Cov yeeb yaj kiab no thaiv dej thiab oxygen, muab kev tiv thaiv ntau dua. Lub zinc txheej tsis yog ib qho thaiv xwb. Nws kuj ua rau cov tshuaj tiv thaiv kab mob uas cuam tshuam cov khoom uas ua rau xeb thiab ua rau kom xeb.
Nyob rau theem me me, zinc oxide pab txav electrons ntawm zinc thiab steel ntug. Qhov no pab cov tshuaj tiv thaiv uas ua kom cov hlau ruaj ntseg. Raws li zinc txheej hnav tawm, kev tiv thaiv hloov ntawm cathodic rau thaiv. Qhov kev sib xyaw ua ke ntawm kev txi thiab kev cuam tshuam cuam tshuam muab galvanized coil muaj zog corrosion kuj thiab lub neej ntev.
Tswv yim: Xaiv galvanized kauj nrog tuab, txawm zinc txheej rau kev tiv thaiv zoo tshaj plaws. Tshawb xyuas koj lub kauj feem ntau kom khawb lossis puas tsuaj kom muaj kev tiv thaiv kev txi ua haujlwm.
Thaum koj siv galvanized coil sab nraud, huab cua tseem ceeb heev. Yog tias huab cua ntub heev, dej tuaj yeem nyob ntawm lub kauj. Cov dej no pab kom xeb sai dua. Ntsev los ntawm hiav txwv lossis dej qab ntsev tuaj yeem ua rau cov zinc txheej. Qhov no ua rau xeb tshwm sim sai dua. Cov pa phem hauv huab cua, zoo li sulfur dioxide thiab nitrogen oxides, sib tov nrog dej. Cov sib tov ua kom cov kua qaub uas zom cov zinc. Acid los nag hauv nroog kuj ua rau cov txheej txheem tiv thaiv. Moss thiab lichen tuaj yeem loj hlob ntawm lub kauj. Lawv tuav dej ze rau ntawm cov hlau thiab ua rau me me ntub dej. Cov pob no pab xeb pib.
Ntawm no yog cov feem ntau ua rau xeb ntawm galvanized kauj:
High humidity (ntau tshaj 60%)
Ntsev nyob rau hauv huab cua los yog dej (cov ntug hiav txwv dej)
Nquag ntub dej los yog ntub dej
Sulfur dioxide muaj kuab paug
Hydrogen sulfide raug
Tiv tauj nrog muaj zog alkalis (cement, plaster)
Acid los nag
Moss thiab lichen loj hlob
Ua rau/qhov mob |
Kev piav qhia |
|---|---|
Humid thiab confined ib puag ncig |
Electrochemical corrosion, dawb xeb vim ya raws thiab huab cua tsis zoo |
Kev tawg ntawm zinc carbonate |
Ntev av noo tso cai rau corrosive daws tsim |
Tej thaj chaw dawb huv heev |
Zinc txheej siv, steel raug |
Tshuaj tiv thaiv |
Moisture, oxygen, CO2, thiab oxides tsim corrosive electrolytic daws |
Tswv yim: Yog tias koj nyob ze ntawm dej hiav txwv lossis hauv ib lub nroog, xyuas koj cov coil galvanized ntau zaus. Cov chaw no ua rau xeb tshwm sim sai dua thiab ua rau lub neej ntawm koj lub kauj.
Kev puas tsuaj rau lub cev yog lwm qhov laj thawj loj rau xeb ntawm galvanized kauj. Kos, cim, lossis txav txav tuaj yeem ua rau cov zinc txheej. Yog tias koj pom ib qho khawb, cov hlau hauv qab nws qhib rau huab cua thiab dej. Zinc tuaj yeem tiv thaiv cov khawb me me, tab sis tsis loj. Yog tias muaj qhov khawb loj lossis puas tsuaj hauv qhov chaw tawv, koj yuav tsum kho nws. Qhov no ua rau lub kauj tsis xeb sai. Koj yuav tsum nrhiav kev puas tsuaj tom qab koj muab lub kauj rau hauv thiab thaum kuaj xyuas. Txawm tias cov chips me me tuaj yeem tso dej rau hauv thiab pib xeb.
Lus Cim: Ua tib zoo nrog galvanized steel kauj thaum koj txav los yog nruab nws. Siv cov hlua mos thiab tsis txhob rub lub kauj kom tsis txhob khawb.
Lub thickness ntawm zinc txheej yog qhov tseem ceeb heev rau kev tiv thaiv xeb. Thicker coatings ua rau muaj zog tiv thaiv thiab kav ntev rau hauv qhov chaw tawv. Cov kev tshawb fawb qhia tias cov zinc tuab tuab muab zinc ions ntau dua. Cov ions no pab tiv thaiv cov npoo thiab cov chaw tsis muaj zog. Cov zinc ua raws li cov ntaub thaiv npog thiab maj mam xeb ntawm cov hlau.
Qib |
Approximate Zinc Txheej Thickness (μm) |
Corrosion Resistance Level |
Ib puag ncig daim ntawv thov |
|---|---|---|---|
G60 |
11.6 |
Nruab nrab |
Ib puag ncig corrosive me ntsis |
G90 |
16.8 |
Zoo |
Feem ntau lub tsev thiab vov tsev |
G180 |
60 |
Siab heev |
Ib puag ncig corrosive heev |
g275 ua |
35.6 |
Siab |
Ib puag ncig hnyav |
Xaiv cov zinc txheej tuab uas haum rau koj qhov project thiab qhov chaw koj siv. Thicker coatings raug nqi ntau dua, tab sis lawv tiv thaiv zoo dua thiab kav ntev dua.
Kev saib xyuas koj cov galvanized kauj yog qhov zoo tshaj plaws los tiv thaiv galvanized steel los ntawm xeb thiab ua kom nws zoo. Cov kauj ruam yooj yim xws li ntxuav, tshuaj xyuas, thiab kho tuaj yeem pab koj kom tau txais txiaj ntsig zoo tshaj plaws ntawm koj cov peev txheej. Kev saib xyuas tsis tu ncua kuj tseem txuag koj cov nyiaj los ntawm kev zam kev hloov pauv kim.
Koj yuav tsum ntxuav koj cov coil galvanized tsawg kawg ib xyoos ib zaug. Hauv thaj chaw ntug dej hiav txwv lossis chaw ua haujlwm, ntxuav txhua peb lub hlis. Kev ntxuav tshem cov ntsev, plua plav, thiab cov kua qaub los nag uas tuaj yeem hnav cov zinc txheej. Pib nrog txoj kev maj mam thiab tsuas yog siv cov tshuaj ntxuav kom muaj zog yog tias xav tau.
Siv cov txhuam txhuam txhuam txhuam rau txhuam. Tsis txhob txhuam cov hlau, uas tuaj yeem khawb thiab ua kom cov xim zinc txheej.
Ntxuav nrog xab npum me me los yog cov khoom ntxuav tsheb thiab cov dej tsis muaj zog.
Rau cov stains me me, siv cov tshuaj ammonia hauv tsev. Rau xeb stains los yog cement deposits, siv oxalic acid, ces yaug zoo.
Tshem cov xim nrog cov thinners thiab cov yas los yog ntoo scraper. Siv cov tsis-alkaline strippers rau cov xim tawv.
Txhua zaus yaug lub kauj tom qab ntxuav kom tshem tawm cov khoom seem uas huv si.
Tswv yim: Sim ib txoj kev tu tshiab ntawm qhov chaw me me, zais cia ua ntej. Qhov no yuav pab koj kom tsis txhob ua puas lub zinc txheej.
Kev tu koj cov galvanized kauj tsis tu ncua pab tiv thaiv cov hlau galvanized los ntawm xeb thiab ua kom lub ntsej muag zoo nkauj. Nws tseem tiv thaiv cov zinc txheej, uas yog qhov tseem ceeb rau kev ua haujlwm ntev.
Koj yuav tsum kuaj xyuas koj cov coil galvanized yam tsawg ib xyoos ib zaug. Hauv ib puag ncig hnyav, xyuas txhua rau rau lub hlis. Nrhiav cov cim qhia ntxov ntawm xeb lossis txheej txheej puas. Tsom ntsoov rau cov ntsiab lus tseem ceeb no:
Cov chaw tiaj tus uas cov dej tuaj yeem sau tau.
Ntug thiab welds, uas yog feem ntau corrode.
Cov chaw uas tau kov ua ntej.
Cov cheeb tsam uas muaj xim av stains los yog dawb xeb.
Cov chaw liab qab uas tsis muaj zinc txheej.
Crevices thiab cov ces kaum uas dej thiab av tuaj yeem tsim.
Qhov chaw uas lub kauj kov lwm yam hlau.
Siv lub ntsuas magnetic thickness los xyuas cov zinc txheej. Yog tias koj pom khawb los yog xeb me me, kho tam sim ntawd:
Ntxuav thaj chaw nrog xab npum me me thiab dej.
Tshem tawm cov xeb nrog tooj dag hlau txhuam los yog cov ntawv xuab zeb zoo.
Siv zinc-nplua nuj xim los yog txias-txheej zinc los tiv thaiv kev tiv thaiv.
Rau kev kho kom loj dua, siv cov dej noo-kho urethane lossis vinyl-raws li xim.
Nco tseg: Kev kho sai sai kom tsis txhob xeb ntawm kev sib kis thiab pab tswj kom zoo ntawm koj cov coil galvanized.
Qee cov tshuaj tuaj yeem ua rau cov zinc txheej thiab ua kom xeb. Koj yuav tsum zam:
Fertilizers thiab vaj tshuaj, uas tuaj yeem txo cov zinc tiv thaiv txog li 40%.
Muaj zog acids thiab alkaline ntxuav, uas zom cov zinc txheej.
Cov dej ntsev thiab cov av noo siab, uas ua rau muaj kev txhim kho corrosion.
Acid nag thiab muaj kuab paug, uas tshem tawm cov txheej sai dua.
Tiv tauj nrog tooj liab lossis lwm yam hlau, uas tuaj yeem ua rau galvanic corrosion.
Khaws koj cov coil galvanized nyob rau hauv qhov chaw qhuav, zoo-ventilated. Khaws nws deb ntawm cov tshuaj thiab lwm yam hlau. Yog tias koj yuav tsum siv lub tshuab ntxhua khaub ncaws, xaiv ib qho uas muaj kev nyab xeeb rau cov zinc txheej, xws li acetone lossis cov khoom lag luam uas tau kuaj rau cov hlau galvanized.
Tswv yim: Zoo cia thiab ceev faj tu yog txoj hauv kev yooj yim los tiv thaiv koj cov coil galvanized thiab txuas nws lub neej.
Kev saib xyuas tsis tu ncua raug nqi tsawg dua li hloov lub coil rusted. Kev tu thiab kho me me kom cov zinc txheej muaj zog thiab tiv thaiv cov teeb meem loj. Yog tias koj hla kev txij nkawm, xeb tuaj yeem ua rau lub kauj thiab yuam kom koj yuav ib qho tshiab. Kev nqis peev me ntsis thiab nyiaj txiag hauv kev saib xyuas yuav pab koj kom tsis txhob muaj kev hloov pauv kim thiab ua kom koj cov galvanized steel coil nyob rau hauv qhov zoo tshaj plaws rau xyoo.
Qhov chaw uas koj siv galvanized coil tseem ceeb heev. Hauv lub tebchaws lossis hauv nroog, galvanized coil kav ntau xyoo. Tej zaum koj yuav tsis pom xeb rau ntau tshaj 70 xyoo nyob rau hauv cov chaw no. Qhov no tshwm sim vim huab cua huv si thiab tsis muaj dej hauv huab cua.
Tab sis nyob ze dej hiav txwv, tej yam txawv. Ntsev hauv huab cua ua rau xeb tshwm sim sai dua. Yog hais tias lub coil ntsib cua daj cua dub, xeb tuaj yeem tshwm sim hauv 5 mus rau 7 xyoo. Yog tias lub kauj muaj kev tiv thaiv, nws tuaj yeem kav li 15 mus rau 25 xyoo ua ntej xeb pib. Koj yuav tsum ntxuav thiab xyuas cov coils ze ntawm ntug dej hiav txwv ntau zaus. Ntxuav lawv nrog dej tshiab txhua ob peb lub hlis kom tshem tau ntsev. Siv cov coatings ntxiv yog tias koj ua tau. Nrhiav xeb lossis puas tsuaj tsawg kawg ob zaug hauv ib xyoos.
Ib puag ncig hom |
Lub Sijhawm Nruab Nrab rau Thawj Xib Fwb Pom Zoo |
Cov Ntsiab Cai thiab Cov Lus Cim |
|---|---|---|
ntug hiav txwv dej (hauv 1 mais,> 250 ft ntawm ntug dej hiav txwv) |
5-7 xyoo (tseem raug) |
Kev raug ncaj qha rau cov ntsev / chloride-nplua nuj cua; cov chaw nkaum nyob ntev dua 15-25 xyoos |
Sab nraum zoov (nyob deb nroog, suburban, temperate marine) |
Ntau xyoo caum mus txog 70 xyoo |
Xws li cov cheeb tsam nyob deb nroog thiab suburban nrog tsawg corrosive cua; temperate marine ib puag ncig suav nrog |
Tswv yim: Yog tias koj nyob ze ntawm lub hiav txwv, ntxuav thiab xyuas koj lub coil ntau zaus. Qhov no pab kom nws kav ntev dua.
Factories thiab tibneeg hu tauj coob txoj kev ua tej yam nyuaj rau galvanized kauj. Lawv muab cov pa roj xws li sulfur dioxide thiab nitrogen oxides rau hauv huab cua. Cov roj no sib tov nrog nag thiab ua kua qaub los nag. Acid nag hnav cov zinc txheej. Nyob rau hauv cov chaw no, galvanized coil kav li ntawm 20 mus rau 40 xyoo ua ntej xeb tshwm. Qhov no tsis yog ntev li ntawm huab cua huv.
Koj yuav tsum xyuas galvanized coil nyob rau hauv lub Hoobkas ntau zaus. Saib cov xeb dawb, xeb liab, khawb, thiab hnav txheej. Ntxuav lub kauj txhua peb mus rau rau lub hlis. Ua tib zoo saib xyuas cov pob qij txha, welds, thiab qhov chaw uas tau siv ntau heev. Siv cov coatings ntxiv yog tias koj ua tau. Xaiv cov zinc txheej tuab dua rau kev tiv thaiv zoo dua hauv qhov chaw tawv.
Tshawb xyuas cov txheej txheej saum npoo txhua peb lub hlis.
Saib cov pob qij txha txhua hli kom xeb.
Saib xyuas cov chaw siv siab txhua ob lub hlis.
Ntxuav thiab kho kev puas tsuaj sai li sai tau thaum koj pom.
Nco tseg: Kev tshuaj xyuas ntau zaus thiab siv cov zinc txheej tuab pab koj lub kauj sib tua cov pa phem thiab kav ntev dua.
Qee lub sij hawm koj pom ib txheej dawb, flaky ntawm galvanized steel kauj. Qhov no hu ua dawb xeb. Nws tshwm sim thaum lub kauj zaum hauv qhov chaw ntub dej nrog cua me ntsis. Dawb xeb zoo li hmoov los yog chalky, tsis zoo li xeb liab. Nws yog ua los ntawm cov khoom siv zinc corrosion. Cov no suav nrog zinc hydroxide, zinc oxide, thiab zinc carbonates. Moisture reacts nrog zinc txheej los ua cov tebchaw. Qhov no tshwm sim ntau dua yog tias huab cua tsis tuaj yeem txav mus los ntawm lub kauj. Tib neeg kuj hu nws 'stain stain' lossis 'wt storage stain.'
Cov xeb dawb feem ntau nyob ntawm qhov chaw thiab tsis ua rau cov zinc txheej tiv thaiv. Nyob rau tib lub sijhawm, zinc hydroxide hloov mus rau zinc oxide thiab zinc carbonate. Yog tias koj tawm ntawm lub kauj tawm sab nraud, cov xeb dawb feem ntau ploj mus vim nws hloov mus rau hauv cov khoom sib txuas ruaj khov.
Lus Cim: Dawb xeb txhais tau hais tias ya raws tau daig tiv thaiv zinc txheej. Nws yog ib qho kos npe los xyuas seb koj khaws thiab tuav koj lub kauj.
Koj tuaj yeem nres cov xeb dawb los ntawm kev ua ob peb yam yooj yim. Nco ntsoov khaws cov galvanized steel coils hauv qhov chaw qhuav nrog cov cua zoo. Tsis txhob muab lawv tso rau hauv av. Siv spacers kom cua tuaj yeem txav ntawm cov coils. Tsis txhob muab cov coils ze ze ua ke. Qhov no ntxiab ya raws thiab pab dawb xeb daim ntawv.
Thaum koj txav cov coils, qhwv lawv nrog cov npog tsis muaj dej thiab tiv thaiv cov npoo. Yog tias koj pom cov coils ntub, qhuav sai sai. Cais cov ntawv ntub dej kom huab cua tuaj yeem ncav cuag lawv.
Xyuas cov coils feem ntau kom pom cov xeb dawb thaum ntxov. Yog tias koj pom nws, ntxuav qhov chaw nrog xab npum me me thiab dej. Rau cov tawv nqaij tawv, siv cov kua qaub tsis muaj zog thiab yaug kom zoo.
Muab cov tshuaj tiv thaiv zoo li zinc-nplua nuj xim, epoxy, los yog hmoov txheej rau kev tiv thaiv ntxiv. Yog tias koj pom khawb lossis liab qab, kho lawv nrog cov tshuaj tsuag txias zinc lossis zinc-nplua nuj txheej. Siv lub ntsuas ntsuas los xyuas cov zinc txheej thiab xyuas kom nws tseem tiv thaiv zoo.
Khaws cov coils kom deb ntawm tooj liab, tooj dag, lossis lwm yam hlau uas ua rau galvanic corrosion. Xyuas kom qhov chaw cia nyob qis dua 60% av noo. Yog tias koj yuav tsum khaws cov coils sab nraud, npog lawv nrog cov dej tsis muaj dej thiab nqa ib qho kawg rau cov kua dej.
Tswv yim: Khaws cov coils zoo thiab ua haujlwm nrawm yog txoj hauv kev zoo tshaj plaws los tiv thaiv xeb dawb thiab ua kom koj cov galvanized steel kauj muaj zog.
Galvanized steel coils tsis xeb yooj yim. Cov zinc txheej tiv thaiv cov hlau hauv qab. Tab sis tsis muaj kauj yuav nres xeb mus ib txhis. Koj yuav tsum tau ntxuav koj lub coil ntau zaus. Kho cov kev puas tsuaj sai sai los pab cov zinc kav ntev. Yog tias koj saib xyuas nws, koj lub coil tuaj yeem kav 20 txog 50 xyoo. Thaum xaiv galvanized steel, xav txog cov no:
Ib puag ncig: Cov chaw nyob ze dej hiav txwv lossis cov chaw tsim khoom xav tau kev tiv thaiv ntxiv.
Zinc txheej thickness: Thicker coatings los ntawm kub-dip galvanizing kav ntev.
Kev Kho: Ntxuav thiab xyuas koj cov galvanized steel kauj feem ntau.
Yog tias koj xaiv qhov zoo thiab saib xyuas koj lub kauj, nws tuaj yeem nyob tau ntau xyoo.
Koj tuaj yeem cia siab tias galvanized steel kauj yuav kav ntev li 20 txog 50 xyoo sab nraum zoov. Lub zinc txheej los ntawm kub-dip galvanizing tiv thaiv cov hlau. Hauv qhov chaw me me, nws kav ntev dua. Nyob rau hauv cov ntug dej hiav txwv los yog chaw ua lag luam, koj yuav pom xeb sai dua.
Yog, koj tuaj yeem pleev xim tshaj galvanized steel kauj. Ntxuav qhov chaw ua ntej. Siv cov primer ua rau zinc txheej. Xim pab tiv thaiv lub kauj thiab tuaj yeem txhim kho nws cov tsos.
Dawb xeb tshwm sim thaum cov dej noo nkag rau ntawm zinc txheej. Qhov no feem ntau tshwm sim thaum khaws cia. Koj tuaj yeem tiv thaiv nws los ntawm kev ua kom cov galvanized steel coil qhuav thiab cia cua mus ncig.
Ntxuav qhov khawb nrog xab npum me me thiab dej. Qhuav thaj chaw. Siv cov xim nplua nuj zinc los yog cov tshuaj tsuag galvanizing txias. Qhov no kho cov zinc txheej thiab tiv thaiv cov hlau hauv qab.
Koj tuaj yeem siv galvanized steel kauj rau qee lub tshuab dej. Lub zinc txheej tiv thaiv corrosion. Txawm li cas los xij, nco ntsoov xyuas cov cai hauv zos thiab cov qauv ua ntej siv nws rau cov dej haus.