1. Puas yog lub neej kev pab cuam ntawm galvanized coils nyob rau hauv industrial cheeb tsam 10 xyoo los yog 30 xyoo?
Hauv thaj chaw muaj kev lag luam lossis thaj chaw muaj kuab paug hauv nroog, kev pabcuam lub neej ntawm cov kub zoo tib yam -dip galvanized coils yog kwv yees li ntawm 15 txog 25 xyoo. Qhov ntau yam no tshwm sim vim hais tias ib puag ncig ntawm "qhov chaw lag luam" sib txawv heev. Piv txwv li, nyob rau hauv ib tug raug lub teeb industrial cheeb tsam los yog industrial park, nws cov kev pab cuam lub neej yuav ncav cuag ib ncig ntawm 25 xyoo; thaum nyob hauv thaj chaw muaj kuab paug hnyav hnyav nrog cov sulfur dioxide siab, nws lub neej kev pab cuam yuav luv luv mus rau tsawg dua 15 xyoo, lossis qis dua. Rau kev siv, nyob rau hauv cov cheeb tsam suburban uas muaj kuab paug tsawg heev, tib txheej txheej yuav ua tiav kev txij nkawm- lub neej dawb tshaj 50 xyoo.
2.Dab tsi ua tau kom luv luv lub neej ntawm galvanized coils?
Koj tuaj yeem xav txog lub neej ntawm galvanized coils raws li kev ua tsov rog ntawm attrition, nrog rau peb cov yeeb ncuab tseem ceeb hauv qab no:
Kev muaj kuab paug huab cua: Qhov no yog tus yeeb ncuab thib ib hauv thaj chaw muaj kev lag luam. Sulfur dioxide, nitrogen oxides, thiab lwm yam kuab paug nyob rau hauv cov huab cua daim ntawv acid los nag, accelerating qhov kev puas tsuaj ntawm cov ntom ntom tiv thaiv zaj duab xis ntawm zinc txheej, ua rau nws corrosion tus nqi ntau dua nyob rau hauv ib puag ncig ntuj.
Climatic tej yam kev mob: High humidity yog ib tug catalyst rau corrosion. Nyob rau tib lub sijhawm, nyob rau hauv cov cheeb tsam los nag nyob rau sab qab teb lossis hauv thaj chaw uas muaj qhov kub thiab txias sib txawv ntawm nruab hnub thiab hmo ntuj ua rau muaj kev sib xyaw ua ke, qhov chaw ntub dej tsis tu ncua yuav ua rau nws lub neej luv.
Kev puas tsuaj rau lub cev: khawb thiab pob thaum lub sij hawm thauj mus los lossis kev teeb tsa zoo li tawg los ntawm "cov cuab yeej" ntawm zinc txheej, nthuav tawm cov hlau hauv qab, ua rau xeb kom kis tau sai ntawm qhov txhab.
3. Puas yog zinc txheej tuab yuav tsum txhais tau tias lub neej ua haujlwm ntev dua?
Yog lawm, nyob rau hauv tib yam kev mob, zinc txheej thickness thiab kev pab cuam lub neej yog feem ntau proportional. Qhov kev sib raug zoo no tuaj yeem kwv yees siv tus qauv yooj yim:
Theoretical Service Life ≈ Zinc Txheej Thickness (μm) ÷ Txhua xyoo Corrosion Rate ntawm ib puag ncig (μm / xyoo)
Piv txwv li, raws li lub teb chaws tus qauv GB/T 13912, txhua xyoo corrosion tus nqi ntawm kub-dip galvanized txheej nyob rau hauv industrial atmospheric ib puag ncig yog kwv yees li 1 mus rau 2 micrometers. Yog li ntawd, kub-dip galvanized coil nrog zinc txheej thickness ntawm 85 micrometers (kwv yees li 600 g / m²) muaj kev pabcuam theoretical lub neej nyob rau hauv ib puag ncig C4-theem kev lag luam: 85 (micrometers) ÷ 4.2 (ntau tshaj txhua xyoo corrosion tus nqi)=kwv yees li 20 xyoo (roj . (tsawg xyoo corrosion tus nqi)=kwv yees li 40 xyoo.
Hauv kev siv tiag tiag, kev xaiv thiab kev saib xyuas kom zoo tuaj yeem tso cai rau 85-micrometer zinc txheej kom ua tiav cov kev pabcuam txhim khu kev qha rau ntau tshaj 20 xyoo hauv C3-theem nroog kev lag luam ib puag ncig.
4. Galvanized Coil vs. Xim-Cov Ntawv Coated: Uas Ntev Ntev nyob hauv Tib Thaj Chaw Muaj Kev Lag Luam?
Feem ntau, nyob rau hauv kev lag luam ib puag ncig, xim -coated ntawv (xim-coated steel ntawv) nrog ib tug tiav txheej kav ntev dua li qub galvanized kauj.
Qhov no yog vim cov xim -coated ntawv muaj ib qho ntxiv cov organic txheej siv dua kub -dip galvanized substrate. Cov txheej ntxiv no tsis yog tsuas yog muab cov rwb thaiv tsev lub cev tab sis kuj tiv thaiv UV rays thiab tshuaj lom neeg corrosion los ntawm nws cov huab cua tsis kam, muab kev tiv thaiv ob npaug rau sab hauv zinc txheej. Yog li ntawd, cov ntaub ntawv qhia tau hais tias lub neej kev pab cuam ntawm cov xim -coated steel ntawv yog li ntawm 50% ntev tshaj li cov zoo tib yam galvanized steel ntawv. Ntau cov xim -coated sheet cov khoom tuaj yeem lav lub neej kev pab cuam ntau dua 20 xyoo nyob rau hauv ib puag ncig kev lag luam lossis suburban ib puag ncig.
5. Cov neeg siv tuaj yeem ua li cas txhawm rau txuas lub neej kev pabcuam ntawm lawv cov ntawv galvanized?
Tau kawg. Cov hauv qab no feem ntau lees paub txoj hauv kev zoo:
Xaiv txoj cai "cov cuab yeej": Xaiv cov txheej txheem galvanized txaus raws li qhov tseeb ib puag ncig ntawm thaj chaw muaj kev lag luam (xws li, xa mus rau ISO 12944 tus qauv). Hauv thaj chaw muaj kev lag luam, galvanized txheej thickness ntau dua lossis sib npaug li 85 micrometers raug pom zoo; rau cov cheeb tsam uas muaj kuab paug hnyav, Ntau dua lossis sib npaug li 100 micrometers yuav tsum raug txiav txim siab.
Tsis tu ncua "check-ups" thiab tu: Nws raug nquahu kom ua qhov kev tshuaj xyuas txhua xyoo thiab ntxuav cov plua plav, dej, thiab lwm yam corrosive deposits. Ib daim ntawv galvanized uas tau muab ntxuav kom zoo thiab khaws cia tuaj yeem muaj lub neej ntev tshaj li 30% ntev dua li ib qho uas tsis tau saib xyuas.
Kho "qhov txhab": khawb los yog kev puas tsuaj rau cov ntsiab lus vuam tshwm sim thaum lub sij hawm kev thauj mus los thiab kev teeb tsa yuav tsum tau kho tam sim ntawd nrog zinc- nplua nuj kho xim los tiv thaiv kev sib kis ntawm cov kab mob hauv zos.
Siv "kev tuav pov hwm ob npaug": Qee cov ntaub ntawv qhia tias ob npaug - txheej txheej txheej siv "zinc txheej + txheej txheej organic" feem ntau muaj tag nrho lub neej ntev tshaj li qhov sib npaug ntawm tus neeg txheej txheej, ua rau muaj kev cuam tshuam tseem ceeb. Yog tias muaj kev tso cai, qhov no yog qhov kev daws teeb meem zoo tshaj plaws.