Koj tso siab tau
galvanized steel ntawv los tiv thaiv corrosion. Nws muaj zog zinc txheej. Cov txheej txheem kub-dipped galvanization ntxiv ib txheej tiv thaiv. Cov txheej no yog nruab nrab ntawm 0.025 hli thiab 0.1 hli tuab. Koj tuaj yeem pom cov thickness hauv cov lus hauv qab no:
Txheej Thickness Range |
Chav ntsuas |
0.025 hli |
mm |
0.1 hli |
mm |
Ntau lub lag luam siv galvanized steel vim nws kav ntev. Lawv ua raws li cov qauv xws li ASTM A123 / A123M thiab ASTM A653.
Ntsiab Cai
Galvanized steel ntawv muaj ib txheej zinc tuab. Cov txheej no txwv tsis pub dej thiab huab cua los ntawm kov cov hlau. Qhov no ua rau cov hlau tsis xeb.
Zinc muab nws tus kheej kom txuag tau cov hlau. Nws xeb ua ntej kom cov hlau nyob ruaj ntseg ntawm kev puas tsuaj.
Yog tias cov zinc txheej tau khawb, nws tuaj yeem kho nws tus kheej. Nws tiv thaiv cov hlau hauv qab nws.
Lub zinc txheej lub thickness tseem ceeb npaum li cas steel kav ntev npaum li cas. Thicker zinc txhais tau tias kev tiv thaiv zoo dua rau cov hlau.
Kev ntxuav thiab tshuaj xyuas cov hlau galvanized pab nws muaj zog. Nrog kev saib xyuas, nws tuaj yeem kav ntev dua 50 xyoo.
Zinc txheej tiv thaiv
Barrier Effect
Galvanized steel ntawv muaj cov ntaub thaiv npog tawv rau nws. Cov zinc txheej ua haujlwm zoo li phab ntsa ntawm cov hlau thiab cov pa. Phab ntsa no khaws dej thiab cua kom deb ntawm cov hlau. Yog dej thiab cua tsis tuaj yeem kov cov hlau, xeb yuav tsis tshwm sim.
Zinc sawv ntawm dej, huab cua, thiab hlau los tiv thaiv nws.
Zinc tsim cov ntaub thaiv npog rau cov hlau, txwv tsis pub huab cua, dej, thiab lwm yam tsis ncav cuag nws.
Shandong Sino Steel Co., Ltd siv kub-dipped galvanization los ua ib txheej zinc tuab. Cov txheej no npog tag nrho cov hlau. Nws pab cov hlau tiv thaiv xeb thiab kav ntev dua hauv qhov chaw tawv.
Cov kws tshawb fawb tau tshawb xyuas qhov zoo ntawm zinc txheej tiv thaiv hlau. Cov lus hauv qab no qhia tias cov txheej txheem sib txawv li cas:
Txheej hom |
Tus nqi impedance (Ω·cm²) |
Kev soj ntsuam |
85 ZPO |
15,000 |
Kev tiv thaiv cathodic zoo thiab ruaj khov impedance dhau sijhawm. |
75 ZPO |
1,123,000 (2d) txog 192,100 (60d) |
Loj poob rau hauv impedance, qhia tsis muaj zog barrier. |
65 ZPO |
Khaws cia hauv impedance |
Tsis muaj zog ntau rau blistering thiab tsis muaj zog barrier. |
Tus nqi impedance loj dua txhais tau tias muaj kev tiv thaiv zoo dua. Koj tuaj yeem pom tias txheej zinc zoo ua kom cov hlau ruaj ntseg rau lub sijhawm ntev.
Kev Txhaum Cai
Zinc ua ntau tshaj li thaiv dej thiab cua. Nws kuj tiv thaiv steel los ntawm kev muab nws tus kheej ua ntej. Thaum ob hlau kov, xws li zinc thiab hlau, ib tug yuav xeb ua ntej lwm tus. Zinc tsis tshua muaj txiaj ntsig dua li cov hlau, yog li nws xeb ua ntej. Qhov no yog hu ua galvanic corrosion.
Galvanic corrosion tshwm sim thaum hluav taws xob tam sim no txav ntawm ob lub hlau sib txawv. Cov hlau uas muaj anodic ntau dua yuav xeb sai dua, thaum lwm cov hlau nyob ruaj ntseg. Zinc yog anodic ntau dua li cov hlau, yog li nws xeb ua ntej thaum nws kov ib yam dab tsi zoo li dej hiav txwv, ua kom cov hlau tsis muaj xeb.
Koj tuaj yeem pom qhov no hauv lawv cov peev txheej txo qis:
Hlau |
Tus qauv txo qhov peev xwm (V) |
Zinc |
-0.76 |
Hlau |
-0.44 |
Zinc muaj peev xwm txo qis dua li hlau.
Qhov no txhais tau tias zinc rusts ua ntej hlau ua.
Thaum zinc rusts, nws ua rau hlau tsis xeb.
Lub zinc txheej ntawm galvanized steel ntawv muab nws tus kheej kom ruaj ntseg steel. Qhov no yog vim li cas tib neeg siv galvanized steel sab nraud thiab tsim khoom.
Kev kho tus kheej
Qee zaum, zinc txheej tau khawb los yog chipped. Tej zaum koj yuav xav tias xeb yuav pib tam sim ntawd. Tab sis galvanized steel tuaj yeem kho nws tus kheej. Thaum cov zinc txheej puas lawm, zinc tseem tiv thaiv cov hlau hauv qab.
Cov ntaub ntawv pov thawj |
Cov kev tshawb pom tseem ceeb |
Cathodic tiv thaiv zinc |
Zinc ua raws li anode thiab muab nws tus kheej los tiv thaiv hlau thaum txheej txheej puas. |
Qhov kev tiv thaiv siab tshaj plaws |
Zinc tuaj yeem tiv thaiv cov hlau mus txog me ntsis ntau dua 1/4' (7 mm) deb, tab sis qhov no poob vim qhov khawb loj dua. |
Nto kev ua haujlwm cuam tshuam |
Yog tias zinc ua haujlwm ntau dua, nws tiv thaiv kom deb dua. Yog tias zinc yog passive, nws tsis tiv thaiv ntau. |
Nyob rau hauv kub-dip galvanized steel, zinc thiab steel kov ib leeg zoo.
Yog tias cov zinc txheej puas thiab muaj dej, cov ntaub ntawv galvanic cell. Zinc ua tus anode thiab tiv thaiv hlau.
Thaum xub thawj, me ntsis xeb tuaj yeem pom ntawm cov hlau, tab sis tsis ntev, zinc ua rau txheej tshiab uas tiv thaiv cov hlau. Qhov no yog hu ua 'kev kho tus kheej'.
Qhov kev kho tus kheej no ua rau galvanized steel ntawv muaj zog thiab muaj kev nyab xeeb los ntawm xeb, txawm tias nws tau khawb. Koj tuaj yeem suav cov hlau galvanized los tiv thaiv nws tus kheej thiab kav ntev hauv ntau qhov chaw.
Cov yam ntxwv cuam tshuam rau Corrosion Resistance
Ib puag ncig
Nws yog ib qho tseem ceeb uas yuav tau xav txog qhov twg koj siv galvanized steel. Qhov chaw koj xaiv tuaj yeem ua rau cov zinc txheej ntev dua lossis hnav sai dua. Qee qhov chaw muaj dej ntau dua, ntsev, lossis cua qias neeg. Cov khoom no tuaj yeem ua rau cov zinc txheej tawg sai sai.
Ntawm no yog ib lub rooj uas qhia tau hais tias cov khoom sib txawv hauv ib puag ncig cuam tshuam rau galvanized steel:
Environmental Factor |
Kev piav qhia |
Ntsev raug |
Ntsev ntawm cov hlau nrog dej ua rau ib qho kev sib xyaw uas hnav cov zinc txheej sai dua. |
Industrial thiab Atmospheric Pollutants |
Cov pa phem nrog cov pa roj thiab dej ua rau cov kua qaub uas ua rau cov zinc txheej. |
Humidity thiab noo noo |
Cov huab cua ntub dej khaws cov dej ntawm cov hlau, uas pab cov khoom uas ua rau xeb thiab ua rau cov zinc txheej hnav sai dua. |
Ntsev tsuag ib puag ncig |
Cov tsev nyob ze dej hiav txwv los yog txoj kev nrog ntsev tuaj yeem xeb sai dua. |
Industrial tso pa roj |
Cov hlau nyob ze ntawm cov chaw tsim khoom raug cuam tshuam los ntawm cov pa phem uas ua rau xeb sai. |
Acid los nag raug |
Ntau cov kua qaub nag tuaj yeem ntxuav cov zinc txheej ntawm cov hlau. |
Yog tias koj siv galvanized steel ntawv nyob ze rau hauv hiav txwv, ntsev thiab cua tuaj yeem hnav cov txheej txheem sai. Piv txwv li, kub-dip galvanized steel ua haujlwm zoo nyob ze ntawm dej hiav txwv, tab sis ntev npaum li cas nws nyob ntawm qhov chaw. Yog tias koj tso ib lub tsev tsawg tshaj li ib mais ntawm hiav txwv, nws yuav pib xeb hauv 5 mus rau 7 xyoo yog tias nws raug ntaus los ntawm dej hiav txwv. Yog tias koj muab tso rau hauv qhov chaw nrog npog, nws tuaj yeem kav li 15 txog 25 xyoo. Cua, qhov kub thiab txias npaum li cas koj nyob rau hauv hiav txwv txhua yam tseem ceeb npaum li cas nws fights xeb.
Txheej Thickness
Qhov tuab ntawm zinc txheej ua rau qhov sib txawv loj npaum li cas koj cov hlau galvanized kav ntev npaum li cas. Cov txheej tuab dua muab kev tiv thaiv ntau dua thiab pab nws kav ntev dua. Koj tuaj yeem tshawb xyuas cov txheej txheej tuab npaum li cas los ntawm saib cov qauv xws li ASTM A653 lossis EN 10346.
Ntawm no yog ib lub rooj uas qhia tau hais tias txheej thickness hloov li cas steel kav ntev npaum li cas:
Txheej Thickness |
Lub neej ua haujlwm siab (Xyoo) |
Ib puag ncig tej yam kev mob |
Thinner Coatings |
50-75 : kuv |
Qhov chaw sib txawv |
Thicker Coatings |
Ntau tshaj 75 |
Tougher qhov chaw |
Cov kev cai thoob ntiaj teb hais tias txheej txheej yuav tsum tuab npaum li cas kom koj tuaj yeem xaiv cov hlau zoo:
Txuj |
Txheej hom |
Yam tsawg kawg nkaus txheej thickness (g / m²) |
ASTM A653 Cov Khoom Siv Hluav Taws Xob |
G90 |
275 |
TS EN 10346 |
Z |
100-600 |
Txheej txheej yog Z, ZF, ZA, AZ, thiab AS.
Cov txheej txheej qis tshaj plaws yog los ntawm 100 mus rau 600 g / m²
Koj yuav tsum tau kuaj xyuas qhov ntsuas thiab qib ntawm cov hlau. Qib zoo li SPCC thiab SGCC ua raws li cov cai nruj. Thicker steel thiab hnyav txheej pab cov hlau tiv thaiv xeb zoo dua, tshwj xeeb tshaj yog nyob rau hauv qhov chaw tawv.
Kev tu
Koj tuaj yeem pab koj cov galvanized steel kav ntev dua yog tias koj saib xyuas nws. Ntxuav thiab xyuas koj cov hlau ua kom cov zinc txheej muaj zog. Yog tias koj ntxuav cov av thiab ntsev, koj yuav tsum tsis txhob ua phem rau zinc. Kev kuaj xyuas koj cov hlau yuav pab koj nrhiav tau khawb lossis puas thaum ntxov, yog li koj tuaj yeem kho lawv ua ntej xeb pib.
Tswv yim: Yog tias koj ntxuav thiab xyuas koj cov hlau galvanized ntau zaus, nws tuaj yeem kav ntev dua 50 xyoo.
Nov yog qee cov kauj ruam yooj yim uas koj tuaj yeem ua raws:
Kev Tu Kom Huv Si: Ntxuav cov av, ntsev, thiab lwm yam uas lo rau cov hlau.
Kev Ntsuam Xyuas Kev Pom Zoo: Saib rau cov xeb dawb, khawb, lossis qhov chaw uas cov txheej tsis ploj.
Kho raws sij hawm: Kho tej kev puas tsuaj sai kom tsis txhob xeb los ntawm kev sib kis.
Yog tias koj tsis saib xyuas koj cov hlau galvanized, koj yuav pom cov teeb meem zoo li no:
Xwb nyob rau hauv cov hlau yog tias cov dej nkag mus.
Xwb los ntawm dej ntsev nyob ze ntawm hiav txwv.
Xeb ntawm cov npoo txiav yog tias koj tsis kaw lawv.
Xeb pib ntxov thaum cov hlau sib txawv kov.
Koj tuaj yeem txwv cov teeb meem no los ntawm kev xaiv cov qib zoo, ua raws li cov cai, thiab ua raws li kev saib xyuas. Txoj kev no, koj cov galvanized steel nyob ruaj khov, nyab xeeb, thiab ua kom sib ntaus sib tua ntau xyoo.
Galvanized Steel Sheet Durability
Lub neej ntev
Galvanized steel ntawv tuaj yeem kav ntev heev. Nws kav ntev npaum li cas nyob ntawm qhov chaw koj siv. Nyob rau hauv lub teb chaws, nws yuav kav mus txog 100 xyoo. Hauv nroog, nws tsis kav ntev npaum li cas vim muaj kuab paug ntau dua. Yog tias koj siv nws nyob ze dej hiav txwv, cua ntsev ua rau nws hnav sai dua. Tab sis nws tseem tiv thaiv steel rau ntau xyoo.
Ib puag ncig hom |
Lifespan (Xyoo) |
Nyob deb nroog |
Txog li 100 |
Nroog |
Txo me ntsis |
Tropical Marine |
75 rau 78 |
Temperate Marine |
78a90 ua |
Koj yuav tsum kuaj xyuas koj cov hlau rau cov teeb meem. Cov xeb dawb zoo li cov hmoov dawb ntawm cov hlau. Qhov no tshwm sim yog tias cov hlau ntub dej ntev dhau. Kev cia khoom tsis zoo lossis dej uas nkag los kuj ua rau muaj teeb meem. Kev tshuaj xyuas koj cov hlau feem ntau pab koj pom cov teeb meem no ntxov.
Daim ntawv thov
Galvanized steel yog siv rau ntau yam. Cov neeg tsim khoom siv nws rau lub ru tsev, gutters, thiab phab ntsa. Nws kuj yog siv rau thav duab thiab ductwork. Cov neeg tsim tsheb siv nws rau lub tsheb lub cev thiab cov ntaub thaiv npog. Cov neeg ua liaj ua teb siv nws rau cov bins, silos, thiab laj kab. HVAC tshuab siv nws rau cov pa cua thiab npog. Koj tuaj yeem pom nws hauv fridges, tshuab ntxhua khaub ncaws, thiab rooj tog hauv chaw ua haujlwm ib yam nkaus.
Kev tsim kho: ru tsev, cladding, structural framing, ductwork
Automotive: lub cev panels, shields, reinforcement qhov chaw
Kev ua liaj ua teb: chaw cia khoom, silos, laj kab
HVAC: cua ducts, vaj tse
Cov khoom siv: tub yees, tshuab ntxhua khaub ncaws, rooj tog hauv chaw ua haujlwm
Cov neeg nyiam galvanized steel vim nws muaj zog thiab siv tau yooj yim. Koj tuaj yeem vuam nws, tab sis koj yuav tsum ceev faj. Ib txwm ua haujlwm nyob qhov twg muaj huab cua ntshiab thiab ua raws li txoj cai kev nyab xeeb. Lub zinc txheej tuaj yeem hloov pauv koj qhov vuam, yog li koj yuav xav tau txoj hauv kev tshwj xeeb los ua nws.
Maximizing Ntev
Koj tuaj yeem pab koj cov galvanized steel kav ntev dua los ntawm kev ua qee yam yooj yim:
Xaiv kub-dip galvanized steel nrog txheej tuab rau qhov chaw tawv.
Khaws cov nplooj ntawv tawm hauv av hauv qhov chaw qhuav, huv si ua ntej siv lawv.
Siv galvanized lossis stainless hlau fasteners kom tsis txhob xeb.
Txhim kho khawb lossis txheej puas tsuaj tam sim ntawd nrog cov xim nplua nuj zinc.
Khaws galvanized steel kom deb ntawm tooj liab thiab cov pa roj carbon monoxide.
Ntxuav cov av thiab ntsev nrog xab npum maj mam thiab dej.
Tshawb xyuas koj cov hlau txhua xyoo thiab kho cov kev puas tsuaj uas koj pom.
Tswv yim: Yog tias koj ntxuav thiab kho koj cov hlau galvanized ntau zaus, nws yuav nyob ruaj khov rau ntau xyoo.
Koj tuaj yeem ntseeg galvanized steel ntawv kom tsis txhob xeb. Lub zinc txheej yog nruj nreem rau cov hlau. Nws khaws dej, ntsev, thiab cua qias neeg.
Ntsiab lus |
Kev piav qhia |
Txhim kho Corrosion Resistance |
Cov zinc tiav pab steel kav ntev dua los ntawm kev txwv tsis pub xeb. |
Muaj zog Adhesion |
Zinc sticks zoo, yog li nws tsis tev tawm. |
Environmental Resistance |
Zinc txheej thaiv dej, ntsev, thiab kuab paug. |
Thaum koj siv galvanized steel, nco ntsoov cov khoom hauv qab no:
Xaiv tus qauv thiab tuab rau koj txoj haujlwm.
Thicker zinc txheej tiv thaiv zoo dua.
Tshawb xyuas thiab ntxuav koj cov hlau ntau zaus kom nws tuaj yeem kav ntev dua 50 xyoo.
FAQ
Dab tsi yog qhov laj thawj tseem ceeb ntawm galvanized steel tiv thaiv xeb?
Zinc txheej tiv thaiv hlau los ntawm xeb. Koj tau txais ib qho kev thaiv muaj zog uas ua kom dej thiab cua nyob deb. Zinc kuj txi nws tus kheej kom txuag cov hlau hauv qab.
Koj paub yuav ua li cas ntsuas qhov ntsuas lossis qib twg?
Koj yuav tsum xyuas koj qhov project xav tau. Thicker gauges ua haujlwm zoo tshaj plaws rau cov haujlwm hnyav. Qib zoo li SPCC thiab SGCC ua raws cov qauv nruj. Koj tuaj yeem nug koj tus neeg muag khoom rau kev tawm tswv yim.
Koj puas tuaj yeem txuas galvanized steel ntawv yooj yim?
Koj tuaj yeem welded galvanized steel ntawv. Zinc txheej tuaj yeem tsim cov pa taws. Ib txwm ua haujlwm nyob rau hauv qhov chaw uas muaj cua zoo. Siv cov cuab yeej kev nyab xeeb los tiv thaiv koj tus kheej.
galvanized steel kav ntev npaum li cas rau sab nraum zoov?
Galvanized hlau tuaj yeem kav ntev dua 50 xyoo hauv qhov chaw qhuav. Nyob rau hauv ntug dej hiav txwv los yog tej chaw muaj kuab paug, tej zaum koj yuav pom tej yam tshwm sim ntawm hnav sai dua. Kev tu tsis tu ncua pab kom nws lub neej ntev.
Yuav ua li cas kho galvanized steel xav tau?
Koj yuav tsum ntxuav cov av thiab ntsev nrog xab npum me me thiab dej. Tshawb xyuas kev khawb lossis puas tsuaj txhua xyoo. Kev kho sai kom koj cov hlau muaj zog thiab tsis muaj xeb.
