A galvanized steel kauj yog ib daim ntawv ntawm cov hlau coated nrog ib txheej ntawm zinc. Cov txheej zinc no tiv thaiv cov hlau los ntawm xeb thiab kev puas tsuaj, ua rau lub kauj muaj zog thiab ruaj khov. Peb lub tuam txhab muaj cov khoom zoo galvanized steel coil khoom uas tau siv dav los ntawm cov chaw tsim khoom thiab cov neeg tsim khoom siv rau kev tsim kho, tsim khoom, thiab cov khoom siv tsheb. Hauv xyoo 2022, kwv yees li 140 lab metric tons ntawm galvanized steel coil tau tsim tawm thoob ntiaj teb, nrog rau Tuam Tshoj ua cov khoom lag luam. Peb cov khoom tsim los ua kom tau raws li qhov xav tau ntawm kev txhim khu kev qha galvanized steel coils thoob plaws ntau yam kev lag luam.
Ntsiab Cai
Galvanized steel kauj yog hlau npog nrog zinc. Cov zinc pab tiv thaiv xeb thiab ua rau cov hlau kav ntev. Qhov no ua rau cov hlau muaj zog thiab zoo rau ntau yam.
Muaj ntau hom thiab qib ntawm galvanized steel kauj. Txhua hom ua haujlwm zoo tshaj plaws rau qee txoj haujlwm. Cov zinc txheej tuab tiv thaiv sab nraud zoo dua. Cov txheej nyias nyias yog qhov zoo dua rau sab hauv lossis zoo nkauj.
Kub-dip, pre-galvanizing, thiab electrogalvanizing yog txoj hauv kev ntxiv zinc. Txhua txoj kev muab qhov sib txawv thickness thiab saib. Txhua tus yog siv rau kev xav tau tshwj xeeb.
Galvanized steel kauj yog siv ntau hauv lub tsev, tsheb, thiab tsev tshuab. Nws pab txuag nyiaj vim nws xav tau kev kho tsawg dua thiab kev saib xyuas tsawg dua.
Kev xaiv cov kauj hlau zoo txhais tau tias xav txog thickness, zinc txheej, qib, thiab qhov twg nws yuav siv. Qhov no pab kom paub tseeb tias nws ua haujlwm zoo thiab kav ntev.
Galvanized Steel Coil Txheej txheem cej luam
Dab tsi yog Galvanized Steel Coil
Lub galvanized steel kauj yog ib daim hlau tiaj tus. Nws yog dov mus rau hauv ib lub kauj. Lub kauj yog them nrog ib txheej zinc. Cov zinc ua kom cov hlau tsis muaj xeb thiab xeb. Factories thiab builders nyiam galvanized steel kauj. Nws muaj zog thiab kav ntev. Nws ua haujlwm zoo txawm tias huab cua hnyav. Zinc txheej thaiv dej thiab cua. Qhov no pab tiv thaiv xeb los ntawm kev sib sau. Thaum lub kauj yog sab nraud, zinc ntsib oxygen thiab noo noo. Nws ua rau nyias zaj duab xis uas tiv thaiv lub kauj. Zaj duab xis no pab lub kauj tiv thaiv kev puas tsuaj.
Galvanized steel kauj muaj ntau yam tseem ceeb:
Khoom |
Tus nqi |
Qhov tseem ceeb / txiaj ntsig |
Qhov ntom |
Kwv yees li ntawm 7.85 g / cm ⊃3; |
Tus qauv hnyav haum rau kev siv cov qauv |
Nto Txheej Nyhav |
30-350 g / m2; (ob tog) |
Muab kev tiv thaiv corrosion adaptable rau ib puag ncig |
Nto Smoothness |
Roughness (Ra) 0.8-1.5 μm |
Txhim kho txheej adhesion thiab durability |
Thermal conductivity |
Tsis cuam tshuam los ntawm galvanizing txheej |
Haum rau kev siv cua sov dissipation |
Hluav taws xob conductivity |
Me ntsis qis dua cov hlau ntshiab |
Ua tau raws li kev lag luam conductivity |
Coefficient ntawm Thermal Expansion |
11.5 x 10⁻⁶/°C |
Ua kom muaj kev ruaj ntseg nyob rau hauv qhov kub thiab txias |
Lus Cim: Cov txheej zinc pab lub kauj tiv thaiv cov tshuaj. Nws nyob ruaj khov nyob rau hauv qhov chaw nrog pH ntawm 6 mus rau 12. Lub kauj muaj peev xwm tuav tau kub txog 200 ° C rau lub sijhawm ntev. Nws tuaj yeem siv li 300 ° C rau lub sijhawm luv luv.
Ntsiab Specifications
Manufacturers ua galvanized steel kauj nyob rau hauv ntau qhov ntau thiab tsawg. Lawv kuj ua txawv thicknesses. Cov yam ntxwv tshaj plaws yog thickness, dav, coil hnyav, thiab puab txoj kab uas hla. Cov no pab cov neeg yuav khoom xaiv qhov zoo tshaj plaws coil rau lawv cov kev xav tau.
Specification Parameter |
Common Range / Tus nqi |
Thickness |
0.12 hli mus rau 0.8 hli (qee li 4.0 hli lossis 6.0 hli) |
Dav |
600mm txog 1500mm (qee qhov chaw 600mm txog 1250mm) |
Coil Nyhav |
3 mus rau 8 metric tons (tus qauv), mus txog 25 metric tons ntawm kev thov |
Coil Inner Diameter |
508mm los yog 610mm |
Zinc txheej thickness yog qhov tseem ceeb heev. Nws cuam tshuam zoo npaum li cas cov coil sib tua xeb. Nws kuj hloov lub coil kav ntev npaum li cas. Cov coils sib txawv muaj qhov sib txawv ntawm qhov hnyav thiab tuab. Cov lus hauv qab no qhia ntau hom thiab lawv cov nta:
Lub npe |
Zinc Txheej Nyhav (oz / ft⊃2;) |
Kwv yees Thickness (µm ib sab) |
Hom Corrosion Resistance |
Cov ntawv thov siv |
G30 |
0.30 tag nrho (0.15 ib sab) |
~ 2.5 |
Kev tiv thaiv lub teeb |
Sab hauv tsev framing, khoom siv |
G60 |
0.60 tag nrho (0.30 ib sab) |
~ 5 |
Kev tiv thaiv nruab nrab |
HVAC, lub teeb sab nraum zoov framing |
G90 |
0.90 tag nrho (0.45 ib sab) |
~ 7.5 |
Kev tiv thaiv siab |
Roofing, siding, ua liaj ua teb |
g235 ua |
2.35 tag nrho (1.175 ib sab) |
~ 20 |
Kev tiv thaiv siab tshaj plaws |
Marine, guardrails, high-corrosion ib puag ncig |
Txoj kev zinc muab tso rau ntawm lub kauj hloov nws lub thickness. Kub-dip galvanizing ua rau tuab txheej. Cov no feem ntau yog nyob nruab nrab ntawm 45 thiab 100 micrometers. Electro-galvanizing ua rau nyias txheej. Cov no yog los ntawm 2.5 mus rau 25 micrometers. Cov txheej tuab tiv thaiv zoo dua tab sis raug nqi ntau dua. Cov txheej nyias nyias zoo li smoother thiab siv sab hauv lossis rau kev kho kom zoo nkauj.
Galvanized steel kauj yuav tsum ua raws li cov qauv thoob ntiaj teb. Cov kev cai no ua kom lub coil muaj kev nyab xeeb thiab muaj zog. Qee cov qauv tseem ceeb yog:
Txuj |
Scope / Daim Ntawv Thov |
Ntsiab Specification Points |
ASTM A653 / A653M / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653 / ASTM A653) thiab ASTM A653 |
Hlau Sheet, Zinc-Coated (Galvanized) los yog Zinc-Iron Alloy-Coated los ntawm cov txheej txheem kub-dip |
Txheej hnyav, adhesion, nto zoo, txheej thickness tsawg kawg nkaus, tiav, tsos, adherence |
ASTM A924 / A924M / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / A924M / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924 / ASTM A924) thiab ASTM A924 / A924M |
General Requirements rau Steel Sheet, Hlau-Coated los ntawm cov txheej txheem kub-dip |
Cov txheej txheem dav dav suav nrog thickness, adhesion, thiab nto zoo |
ASTM A123/A123M |
Kub-Dip Galvanized Txheej ntawm Hlau thiab Hlau Khoom |
Txheej thickness tsawg kawg nkaus, tsis tu ncua du tiav, tsis muaj qhov chaw tsis muaj coated, muaj zog adherence thoob plaws lub neej kev pab cuam |
TS EN ISO 3575 |
Nruam Kub-Dip Zinc-Coated Carbon Steel Sheet ntawm kev lag luam thiab kos duab zoo |
Txheej thickness, zoo li, corrosion kuj |
TS EN ISO 1461 |
Kub Dip Galvanized Coatings ntawm Fabricated Hlau thiab Hlau Cov Khoom - Cov Lus Qhia thiab Kev Ntsuas |
Txheej thickness, zoo li, corrosion kuj |
ASTM thiab ISO cov qauv tsim cov cai rau txheej hnyav thiab tuab.
Kev ntsuam xyuas xyuas seb zinc sticks zoo li cas rau cov hlau thiab seb cov txheej txheem zoo li cas.
Kev tiv thaiv corrosion yog kuaj nrog ntsev tsuag thiab lwm txoj kev.
Hom thiab Qib
Galvanized steel kauj los ntawm ntau hom thiab qib. Txhua hom muaj cov yam ntxwv tshwj xeeb rau qee txoj haujlwm.
Kub-Dip Galvanized Steel Coils: Cov coils no yog tsim los ntawm dipping steel hauv melted zinc. Qhov no ua rau ib txheej tuab, tawv uas tsis xeb. Cov neeg tsim khoom siv kub-dip coils rau sab nraum zoov xws li lub ru tsev thiab laj kab.
Electro-Galvanized Steel Coils: Cov coils no tau txais zinc los ntawm kev siv hluav taws xob hauv kev daws teeb meem. Cov txheej yog thinner thiab smoother. Cov chaw tsim khoom siv cov coils no rau cov khoom siv tsheb thiab cov khoom siv uas xav tau qhov zoo nkauj.
Cov qib siv 'G' thiab tus lej. Tus lej qhia tias ntau npaum li cas zinc nyob ntawm lub kauj. Cov lej loj dua txhais tau tias zinc ntau dua thiab kev tiv thaiv zoo dua. G60, G90, thiab G275 yog cov qib sib xws.
Qib Hom |
Kev piav qhia |
Tej kev siv |
Qib lag luam |
Kev lag luam loj tshaj plaws; siv dav hauv kev tsim kho |
Roofing, sab |
Kev kos duab zoo |
Siv nyob rau hauv txias-kuav los tiag steel ntau lawm |
Automotive, khoom siv |
Siab zog Tsawg Alloy |
Siab zog thiab durability |
Cov choj, tsev, nkoj |
Qib Qib |
Siv rau hauv kev tsim cov choj thiab vaj tsev |
Cov qauv qauv |
Lwm tus |
Cov qib tshwj xeeb nrog cov khoom tshwj xeeb |
Ntau yam kev siv tshwj xeeb |
Cov khoom siv tshuab hloov nrog txhua qib. Cov lus hauv qab no qhia tias lub zog thiab kev hloov pauv txawv li cas:
Qib |
Tensile zog (MPa) |
Yield zog (MPa) |
Elongation (%) |
Core Advantage |
Hom Kev Thov / Kev Ua Haujlwm |
Commercial Qib (CS) |
270-410 ib |
N/A |
≥ 20 |
Basic rustproofing, general zog |
Yooj yim khoov thiab txiav (tsis muaj qhov sib sib zog nqus stamping) |
Qib Qib (SS) |
340-550 : kuv |
≥ 230 |
Nruab nrab |
Siab zog thiab weldability |
Load-bearing, vuam, bolts txuas |
Drawing Qib (D) |
Nruab nrab |
N/A |
≥ 30 |
High ductility thiab uniform elongation |
Medium complexity stamping |
Qib Drawing Ntxiv (EDD) |
qis |
N/A |
≥ 40 |
Extreme formability, tiv taus thinning |
Complex stamping nrog precision pwm |
High Strength Structural Qib (HSS) |
550-980 : kuv |
Qhov piv txwv ≤ 0.85 |
Nruab nrab |
Siab zog-rau-qhov hnyav piv, siab zog nqus |
Kev ua haujlwm tshwj xeeb (laser txiav, hydraulic molding) |
Galvanized steel kauj muaj qhov sib txawv ntawm qhov tiav:
Tsis tu ncua Spangled: Koj tuaj yeem pom zinc muaju. Nws yog siv hauv kev tsim kho.
Minimized Spangle: Cov muaju me me ua rau lub ntsej muag du. Siv hauv tsheb thiab khoom siv.
Zero Spangle: Tsis pom muaj crystals. Qhov saum npoo yog ci thiab du. Siv nyob rau hauv cov zaub mov thiab tshuaj industries.
Cov Txheej Txheem Tshwj Xeeb: Qee cov coils muaj txheej txheej ntxiv rau cov ntiv tes, kab mob, lossis cua sov.
Tswv yim: Xaiv hom thiab qib zoo rau koj txoj haujlwm. Cov txheej tuab thiab cov qib siab yog qhov zoo tshaj plaws rau cov chaw sab nraud lossis tawv. Nyias txheej thiab du tiav yog zoo rau sab hauv lossis kho kom zoo nkauj.
Txoj kev tsim khoom
Kub-dip Galvanizing
Kub-dip galvanizing yog txoj kev nrov tshaj plaws los tiv thaiv steel coils. Ua ntej, cov neeg ua haujlwm ntxuav cov hlau. Lawv pickle thiab neutralize saum npoo. Tom ntej no, lawv dipped lub kauj nyob rau hauv melted zinc. Qhov no ua rau muaj zog zinc-hlau alloy txheej. Tom qab dipping, coil cools down. Cov neeg ua haujlwm kho nws nrog passivation thiab roj. Cov kauj ruam no pab cov txheej nplaum thiab zoo dua. Cov neeg soj ntsuam xyuas lub thickness thiab seb lub txheej zoo li cas. Tom qab ntawd, lub coil tau ntim. Cov txheej zinc yog tuab, feem ntau 45 txog 85 micrometers. Qhov no phim ASTM cov cai xws li A123 thiab A653. Cov txheej txheem pab steel tiv thaiv xeb thiab khawb. Nws yog qhov zoo rau cov tsev sab nraum zoov thiab cov haujlwm nyuaj.
Txheej Txheem Flow:
Npaj thiab ntxuav cov khoom
Pickle thiab tshem tawm cov roj
Ntxuav thiab neutralize
Ntxiv pretreatment txheej
Nyob rau hauv melted zinc
Txias thiab kho lub kauj
Flatten thiab trim lub kauj
Tshawb xyuas kom zoo
Txiav thiab yob rau hauv coils
Ntim thiab xa cov khoom
Pre-galvanizing
Pre-galvanizing tshwm sim ntawm steel zeb ua ntej shaping. Cov neeg ua haujlwm ntxuav cov ntawv hlau ua ntej. Tom qab ntawd, lawv khiav nws los ntawm melted zinc nyob rau hauv ib txoj kab. Qhov no ua rau ib tug du thiab txawm zinc txheej. Cov txheej txheej feem ntau yog 20 mus rau 30 micrometers tuab. Qhov kawg yog ci thiab yooj yim rau cov duab. Pre-galvanized steel nqi tsawg dua thiab ua haujlwm zoo rau cov haujlwm loj. Tab sis, txiav ntug thiab welds tuaj yeem pom liab qab. Qhov no txhais tau tias tsis muaj xeb tiv thaiv. Pre-galvanizing yog qhov zoo tshaj plaws rau cov khoom siv sab hauv tsev lossis qhov chaw uas yuav tsum tau saib zoo.
Feature |
Kub-dip Galvanizing |
Pre-galvanizing |
Txheej Thickness |
45-85 hli |
20-30 m² |
Kev pab them nqi |
Tag nrho, suav nrog cov npoo |
Tsis nyob ntawm cov npoo |
Ua kom tiav |
Hloov pauv |
Uniform, kaj |
Kev siv zoo tshaj plaws |
Sab nraum zoov, hnyav hnyav |
Sab hauv, pom qhov chaw |
Electrogalvanizing
Electrogalvanizing siv hluav taws xob los npog steel nrog zinc. Cov neeg ua haujlwm ntxuav cov hlau ua ntej. Tom qab ntawd, lawv muab tso rau hauv ib qho kev daws teeb meem tshwj xeeb. Zinc ions lo rau cov hlau thiab ua kom nyias, txawm txheej. Cov txheej txheej feem ntau yog 5 txog 25 micrometers tuab. Electrogalvanized steel yog du thiab ci. Nws khoov tau yooj yim thiab tiv thaiv xeb hauv qhov chaw ntub dej. Nws kuj yog ib qho yooj yim rau xim. Cov neeg siv nws rau tsheb qhov chaw, khoom siv, thiab hluav taws xob. Cov txheej txheem ua raws li ASTM A879 cov cai. Nws yog qhov zoo rau cov khoom uas xav tau qhov chaw zoo thiab qee qhov kev tiv thaiv xeb.
Lus Cim: Electrogalvanized steel ua haujlwm zoo tshaj plaws sab hauv thiab hauv qab xim. Nws nres xeb zoo tab sis tsis tiv thaiv los ntawm hnav ntau npaum li kev kub-dip.
Galvanealing
Galvanealing sib tov galvanizing nrog cua sov. Tom qab kub-dip galvanizing, cov neeg ua haujlwm kub cov hlau siab heev. Qhov no ua rau zinc-hlau alloy txheej. Lub txheej pab nrog vuam thiab pleev xim. Galvanaled steel yog yooj yim rau weld thiab zoo li. Nws yog siv rau hauv tsheb, tsev, thiab khoom siv. ASTM A653 muab cov cai rau galvanaled steel kauj. Qhov no ua rau qhov zoo thiab kev ua haujlwm ruaj khov.
Nta thiab Cov txiaj ntsig
Corrosion Resistance
Galvanized steel tsis xeb yooj yim vim nws cov zinc txheej. Cov txheej zinc tiv thaiv cov hlau hauv qab. Thaum dej los yog cua kov lub kauj, zinc reacts ua ntej. Qhov no ua rau cov ntaub thaiv npog uas txwv tsis pub oxygen thiab dej tsis ncav cuag cov hlau. Cov txheej zinc kuj tsim cov sib xyaw tshwj xeeb xws li zincite (ZnO), hydrozincite, thiab Simonkolleite. Cov tebchaw no tsim ib zaj duab xis tuab. Cov yeeb yaj kiab ua kom qeeb xeb thiab ua kom cov hlau ruaj ntseg. Txawm hais tias lub kauj raug khawb los yog txiav, zinc tseem tiv thaiv nws. Lub zinc txheej hloov li cas cov hlau reacts rau xeb. Thicker zinc txheej muab kev tiv thaiv ntau dua. Lawv kav ntev dua hauv qhov chaw tawv.
Cov zinc txheej hnav tawm ua ntej cov hlau ua.
Cov yeeb yaj kiab tiv thaiv thaiv cov pa oxygen thiab dej los ntawm cov hlau.
Lub txheej kho nws tus kheej ntawm khawb los yog txiav.
Zinc-nplua nuj primers muab kev tiv thaiv ntxiv hauv cov xwm txheej nyuaj.
Kev ntsuam xyuas qhia tau tias cov hlau galvanized tiv thaiv xeb zoo dua li cov hlau dawb. Qhov no muaj tseeb hauv qhov chaw ntub dej lossis sab nraum zoov.
Cov qauv |
Corrosion Rate (50 ° C) |
Main Corrosion Khoom |
Khoom Morphology |
Q235 steel |
1 |
fe3o 4 |
Lov |
Cov hlau tsis muaj galvanized |
0.07 |
ZnO |
ntom |
Kev puas tsuaj galvanized hlau |
0.66 |
Fe3O4 + ZnO |
ntom |
Durability thiab Maintenance
Lub zinc txheej pab galvanized steel kav ntev. Nws ua haujlwm zoo sab nraum nag, hnub, thiab cua. Cov neeg siv nws rau lub ru tsev, laj kab, thiab tshuab. Stainless hlau kav ntev dua nyob rau hauv qhov chaw hnyav heev. Tab sis galvanized steel tiv thaiv zoo thiab raug nqi tsawg. Nyob rau tib lub sijhawm, zinc txheej tuaj yeem hnav. Kev kuaj xyuas tsis tu ncua thiab kho yooj yim kom cov hlau muaj zog.
Tswv yim: Khaws cov hlau galvanized hauv qhov chaw qhuav. Qhwv coils los tiv thaiv lawv. Tshawb xyuas dej ntau zaus. Yog tias koj pom kev puas tsuaj, kho nws nrog zinc-nplua nuj xim los yog tshuaj tsuag.
Pom zoo kev saib xyuas:
Siv tshuaj los yog roj kom tsis txhob muaj kev sib txhuam thiab kev puas tsuaj.
qhwv coils nrog ntawv lossis yas thaum khaws cia lossis xa khoom.
Txheeb xyuas cov dej thiab cov coils qhuav tam sim ntawd yog tias ntub.
Txhim kho ntim ceev kom tsis txhob khawb.
Khaws cov coils hauv chav tswj kev nyab xeeb. Tsis txhob cia lawv ntev heev.
Nqi Efficiency
Galvanized steel muab tus nqi zoo rau cov nyiaj. Nws raug nqi ntau dua li cov hlau dawb thaum xub thawj. Tab sis nws yog pheej yig dua stainless hlau los yog pleev xim coils. Lub zinc txheej txhais tau tias tsawg dua kev kho thiab tsawg dua repainting. Qhov no txuag nyiaj dhau sijhawm.
Nqe Aspect |
Kub-dip Galvanized Steel |
Painted Steel System (Ob-coat) |
Tus nqi pib |
Kev sib tw lossis qis dua |
Qee zaum siab dua lossis zoo sib xws |
Kev Kho Txhua Xyoo |
$0.03 toj ib xyoo |
$0.15 toj ib xyoo |
Facility Life |
30 xyoo |
30 xyoo |
Yuav tsum tau tu |
Tsis muaj |
Repainting tsis tu ncua |
Lub neej-Cycle Nqi |
Feem ntau tsuas yog tus nqi pib xwb |
Ntau dua vim kev tu |
Galvanized steel pab txo tus nqi hauv lub sijhawm ntev. Nws xav tau kev kho thiab hloov tsawg dua. Nws kuj txuag hluav taws xob hauv tsev. Qhov no ua rau nws muaj kev xaiv ntse rau kev tsim thiab ua khoom.
Kev siv ntawm Galvanized Steel Chev
Kev tsim kho thiab ru tsev
Galvanized steel kauj yog qhov tseem ceeb heev hauv tsev. Cov neeg tsim khoom siv nws rau lub ru tsev, phab ntsa, kab teeb, thiab tuav. Cov txheej zinc ua kom cov tsev muaj kev nyab xeeb los ntawm xeb thiab huab cua phem. Qhov no ua rau nws xaiv zoo rau kev siv sab nraum zoov. Nws muaj zog thiab tsis tawg yooj yim. Nws kav ntev rau qhov chaw nyuaj. Ntau tus neeg tsim khoom xaiv galvanized steel coil rau cov tsev hlau, cov kav dej, thiab phab ntsa panels. Txog ib nrab ntawm tag nrho cov galvanized steel kauj yog siv hauv tsev. Ntau lub nroog thiab cov haujlwm tshiab ua rau qhov xav tau ntawm cov khoom siv no loj hlob, tshwj xeeb tshaj yog nyob rau hauv Asia-Pacific.
Manufacturing thiab Automotive
Factories siv galvanized steel kauj vim nws yog tawv thiab yooj yim rau cov duab. Cov neeg tsim tsheb siv cov kub-dip galvanized coils rau lub tsheb lub cev, thav duab, thiab hauv qab qhov chaw. Zinc txheej thaiv cov khoom no los ntawm xeb. Qhov no pab cov tsheb nyob nyab xeeb thiab ua haujlwm zoo. Cov tuam txhab tsheb hauv Suav teb thiab Is Nrias teb siv ntau dua galvanized steel kauj tam sim no. Lawv xav tau tsheb sib dua thiab zoo dua. Ntau lub tsheb hluav taws xob kuj txhais tau tias xav tau ntau dua rau cov khoom siv no. Cov kev cai tshiab hais txog cov pa phem thiab txuag roj ua rau cov tuam txhab siv galvanized steel kauj. Cov txheej txheem txheej txheej zoo dua thiab cov chaw tsim khoom hauv zos pab ua kom tau raws li qhov xav tau loj dua hauv cov cheeb tsam no.
Lwm yam kev siv
Galvanized steel kauj yog siv rau ntau tshaj li cov tsev thiab tsheb. Cov kws tsim khoom siv nws rau lub tshuab ntxhua khaub ncaws, fridges, thiab cua txias. Nws tsis xeb thiab zoo li zoo. Cov khoom siv kuj yog siv rau hauv ntsuab zog thiab ntse hauv nroog tej yaam num. Cov tsheb hluav taws xob thiab lub zog ntsuab xav tau cov hlau tsis xeb rau cov khoom tshiab. Hauv Asia-Pacific, ntau tshaj li ib feem peb ntawm galvanized steel kauj yog siv rau cov khoom siv. Cov phiaj xwm tshiab hauv nroog thiab ntau lub chaw tsim khoom ua rau qhov xav tau ntawm cov hlau no nce mus. Cov tuam txhab tam sim no siv cov thev naus laus zis tshiab los ua cov khoom lag luam ntse thiab tshwj xeeb steel rau cov lag luam tshiab no.
Kev txiav txim siab thiab kev txwv
Xaiv Txoj Cai Coil
Xaiv txoj cai steel kauj rau txoj haujlwm yog qhov tseem ceeb. Koj yuav tsum xav txog ntau yam. Cov khoom no hloov pauv qhov coil ua haujlwm zoo npaum li cas thiab nws kav ntev npaum li cas.
Thickness : Thickness steel tuav ntau qhov hnyav thiab kav ntev. Cov neeg tsim khoom siv cov coils tuab rau cov kab teeb thiab cov khoom muaj zog. Nyias coils yog qhov zoo rau cov khoom sib zog xws li cov kav dej.
Coating Luj : Zinc txheej yuav tsis xeb. Cov coatings hnyav, zoo li G90, yog qhov zoo tshaj plaws rau qhov chaw ntub dej lossis ntsev. Cov txheej txheej sib dua, zoo li G60, zoo rau sab hauv lossis me me.
Qib : Txhua qib muaj nws lub zog thiab khoov. Cov qib muaj zog yog qhov zoo thaum koj xav tau cov hlau tawv. Cov qhab nia hloov tau zoo dua yog tias koj xav tau khoov lossis kho cov kauj.
Dav thiab Length : Qhov ntau thiab tsawg pab haum rau txhua qhov project. Qhov no ua rau lub tsev thiab tsim tau yooj yim dua.
Lwm yam kev txiav txim siab : Xav txog tus nqi, hom haujlwm, thiab qhov twg koj yuav siv lub kauj. Kub-dip lossis electrogalvanizing yog xaiv raws li qhov koj xav tau.
Tswv yim: Nco ntsoov saib cov kev cai ntawm kev lag luam thiab xyuas koj tus neeg muag khoom zoo ua ntej koj yuav.
Environmental Factors
Qhov chaw uas koj siv steel coils tuaj yeem hloov lawv ua haujlwm li cas. Ntsev nyob rau hauv huab cua ze ntawm dej hiav txwv lov zinc sai. Cov pa phem los ntawm cov chaw ua haujlwm ua rau cov kua qaub nag uas hnav cov zinc. Khaws cov coils hauv qhov chaw ntub dej tuaj yeem cuam tshuam cov dej thiab ua rau xeb dawb. Thaum tshav kub kub los ntawm vuam los yog txiav tuaj yeem hlawv cov zinc thiab cia cov hlau qhib rau xeb.
Ib puag ncig |
Tseem Ceeb Risk |
Kev tiv thaiv |
Ntug hiav txwv |
ntsev tsuag, pitting |
Siv cov zinc txheej hnyav |
Kev lag luam |
Acid nag, corrosion |
Siv passivation, foob npoo |
Humid Cia |
Dawb xeb tsim |
Khaws rau hauv qhov chaw qhuav, ventilated |
Tej Teeb Meem
Steel coils tuaj yeem muaj teeb meem thaum siv lossis khaws cia:
Cov xeb dawb tuaj yeem tshwm sim yog tias dej nyob ntawm lub kauj, tshwj xeeb tshaj yog tias passivation tsis ua tiav zoo.
Kev khawb, txiav, lossis vuam tuaj yeem ua rau cov zinc txheej thiab ua rau xeb ntau dua.
Yog tias cov zinc tsis yog lossis cov hlau muaj av, cov pob tsis muaj zog tuaj yeem tsim.
Cov pob dub tuaj yeem tshwm sim yog tias xeb dawb loj tuaj.
Kev khaws cov coils tsis raug, zoo li hauv qhov chaw ntub dej, ua rau xeb ntau dua.
Lus Cim: Kuaj cov coils nrog kev saib xyuas, xyuas lawv ntau zaus, thiab khaws cia lawv txoj cai kom tsis txhob muaj teeb meem feem ntau.
Galvanized steel coil ua kom cov hlau tsis muaj xeb. Nws kuj nres kev puas tsuaj. Cov khoom no muaj zog thiab kav ntev. Nws pab txuag nyiaj thiab. Cov neeg tsim khoom siv nws rau lub ru tsev thiab phab ntsa. Cov neeg tsim khoom siv nws rau tsheb thiab khoom siv. Cov neeg yuav khoom yuav tsum saib cov thickness thiab txheej hnyav. Lawv kuj yuav tsum kuaj xyuas qib. ASTM cov qauv pab kom paub tseeb tias lub kauj yog zoo. Cov av noo thiab ntsev hauv huab cua tuaj yeem hloov pauv nws ua haujlwm li cas. Kev xaiv cov kauj raug zoo muab cov txiaj ntsig zoo dua.
FAQ
Lub hom phiaj tseem ceeb ntawm galvanized steel kauj yog dab tsi?
Galvanized steel coil ua kom cov hlau tsis xeb lossis puas. Cov txheej zinc ua haujlwm zoo li daim ntaub thaiv. Cov neeg tsim khoom thiab cov chaw tsim khoom siv nws los ua qhov chaw uas nyob ntev thiab nyob ruaj khov.
Yuav ua li cas zinc txheej tiv thaiv xeb?
Zinc ntsib dej thiab huab cua ua ntej cov hlau ua. Qhov no ua rau ib txheej tshwj xeeb rau saum. Cov txheej txheem nres dej thiab huab cua los ntawm kev kov cov hlau.
Cov neeg siv galvanized steel kauj feem ntau nyob qhov twg?
Cov neeg siv galvanized steel coil hauv tsev, tsheb tsim, thiab ua cov khoom siv. Nws yog qhov zoo rau lub ru tsev, tsheb qhov chaw, thiab cov khoom siv tshuab.
galvanized steel kauj tuaj yeem pleev xim?
Koj tuaj yeem pleev xim galvanized steel kauj. Qhov saum npoo yuav tsum huv thiab qhuav ua ntej. Cov primers tshwj xeeb pab cov xim pleev xim rau txheej zinc.
Dab tsi yog cov qauv siv rau galvanized steel kauj?
ASTM A653 thiab ISO 3575 yog cov cai tseem ceeb rau galvanized steel kauj. Cov kev cai no tham txog cov txheej txheej tuab npaum li cas, qhov chaw zoo li cas, thiab nws tiv thaiv xeb zoo li cas.
