Thaum xaiv cov ntaub ntawv rau ib qhov project, tus nqi pib tsuas yog ib qho tseem ceeb. Rau huab cua hlau zoo li S235J0W, tus nqi tseeb yog nyob rau hauv nws lub sijhawm ntev - kev ua tau zoo thiab kev txuag nyiaj tseem ceeb tshaj tus qauv tag nrho lub neej. Yog li, nws yuav ua li cas thiaj li tiv thaiv lwm yam kev xaiv?
Tus nqi Hierarchy: Qhov twg S235J0W zaum
Raws li txoj cai ntawm tus ntiv tes xoo, tus nqi ntawm cov hlau nce nrog nws cov khoom txhim kho. Ntawm no yog cov qauv nqi ib txwm, los ntawm yam tsawg kawg mus rau kim tshaj:
Carbon Steel (piv txwv li, S235 / S355):Cov kab hauv qab, qis tshaj - tus nqi xaiv. Txawm li cas los xij, nws yuav tsum muaj cov xim pleev xim zoo rau kev tiv thaiv corrosion, ntxiv qhov tseem ceeb thawj zaug thiab cov nqi kho dua tshiab.
S235J0W Corten Hlau:Qhov no yog qib nkag - qib hauv tsev neeg huab cua huab cua. Nws nqa ibhwm ntawm 10-20% tshaj tus qauv carbon steel. Koj them rau nws cov ntsiab lus alloying (xws li tooj liab, chromium, thiab phosphorus) uas pab tiv thaiv "patina" tsim.
Siab dua -Lub zog Weathering Steels (piv txwv li, S355J2W, ASTM A588):Cov qib no hais kom tus nqi siab dua S235J0W vim lawv lub zog tawm los ntau dua (355 MPa vs . 235 MPa). Qhov kev xaiv nyob ntawm seb koj tus qauv tsim puas yuav tsum muaj peev xwm ntau dua - bearing peev.
Galvanized los yog Stainless hlau:Cov no feem ntau yog cov kev xaiv kim tshaj plaws ua ntej. Lawv raug xaiv rau ib puag ncig tshwj xeeb (xws li cov tshuaj chloride siab) qhov twg lawv cov txheej txheem tiv thaiv corrosion sib txawv yog tsim nyog.
Qhov Zoo Tshaj Plaws Tiag: Lub Neej -Kev Txuag Nqi Zog
Qhov txiaj ntsig tseem ceeb ntawm kev lag luam ntawm S235J0W thiab lwm cov huab cua huab cua tsis yog tus nqi yuav khoom - nws yog qhov txo qis hauv kev saib xyuas ntau xyoo lawm.
Lub neej- kev tshuaj xyuas lub voj voog ua haujlwm los ntawm Swedish Transport Administration muab qhov sib piv meej. Nws pom tias ib tug choj uas tsis tau pleev xim rau huab cua yog hais txog25% pheej yig dua nyob rau hauv tag nrho cov nqi tshaj 80 xyoopiv rau ib tug pleev xim rau carbon steel choj.
Nov yog ib qho kev piav qhia vim li cas:
| Nqi Factor | Painted carbon hlau | S235J0W Corten Steel (Liab) | Qhov zoo rau Corten |
|---|---|---|---|
| Tus nqi pib | Cov nqi qis dua, tab sis tus nqi siab rau kev npaj nto thiab ntau - txheej txheej xim. | Cov khoom siv ntau dua, tab sistsis tas yuav painting. | Yuav raug nqi - nruab nrab lossis siab dua me ntsis pib. |
| Kev tu | Yuav tsum tau repainting li niaj zaus txhua 10-15 xyoo. Cov nqi suav nrog kev ua haujlwm, kev cuam tshuam tsheb, thiab kev tswj ib puag ncig rau kev tshem tawm xim. | Kev saib xyuas tsawg kawg nkaus.Feem ntau suav nrog kev tshuaj xyuas qhov muag thiab ua kom cov dej ntws tawm kom meej. | Ntev ntev - txuag nyiaj ntau heev.Tshem tawm cov nqi pheej yig dua thiab hassle ntawm repainting. |
| Kev ua tau zoo | Cov xim pleev xim tuaj yeem nti thiab khawb, ua rau thaj tsam corrosion uas yuav tsum tau kov-ups. | Ua kom ruaj khov, tus kheej - rov ua dua patina. Muaj2-8 npaug zoo dua corrosion kujtshaj cov pa roj carbon steel. | Ntau ruaj thiab txhim khu kev qha ntev - ua haujlwm tau zoo nyob rau hauv cov huab cua tsim nyog. |
Xaiv Cov Qib Zoo: Phau Ntawv Qhia Txog Tswv Yim
Xaiv tus nqi tshaj plaws - steel siv tau zoo yuav tsum muab cov khoom sib piv rau qhov project xav tau:
Xaiv S235J0W rau:Architectural façades, vaj sculptures, enclosures, thiab tsis yog - cov yam ntxwv tseem ceeb nyob qhov twg235 MPa yield zog txausthiab qhov zoo nkauj ntawm rusted patina yog xav tau. Nws muab cov txiaj ntsig huab cua tseem ceeb ntawm qhov chaw nkag qis tshaj plaws hauv nws pawg.
Xav txog qib siab dua li S355J2W rau:Load-cov kabmob txuas txuas, thawj cov qauv thav duab, lossis txhua daim ntawv thov uas muaj zog dua (355 MPa) tso cai rausib dua los yog ntau dua, uas tuaj yeem cuam tshuam cov khoom siv tus nqi hwm.
Tsis txhob bare weathering steel rau:Ib puag ncig nrog cov av noo tas li, cov dej ntsev ncaj qha, lossis hnyav rau cov khoom siv chlorides. Hauv cov xwm txheej no, patina yuav tsis ruaj khov, thiab cov tshuaj pleev xim los yog cov tshuaj galvanized muaj kev ntseeg siab dua.
Hauv kev xaus, thaumS235J0W Corten steel raug nqi ntau dua li cov pa roj carbon steel pem hauv ntej, nws cov nqi zoo dua -kev ua tau zoo los ntawm kev tshem tawm ntau xyoo ntawm kev kho xim kim.Rau tej yaam num nyob rau hauv tus txheej txheem atmospheric ib puag ncig, nws sawv cev rau ib tug ntse, kev xaiv economic uas them rau nws tus kheej nyob rau hauv lub neej ntawm cov qauv. Qhov tseem ceeb yog ua kom tiav tag nrho lub neej- kev txheeb xyuas tus nqi ntawm lub voj voog tshwj xeeb rau koj qhov project txhawm rau txheeb xyuas qhov kev txuag nyiaj.
Kuv vam tias qhov kev sib piv no pab qhia meej txog daim duab nyiaj txiag. Yog tias koj tuaj yeem qhia qhov tshwj xeeb ib puag ncig thiab npaj daim ntawv thov rau koj qhov project, kuv tuaj yeem muab kev nkag siab ntau ntxiv rau seb S235J0W yog qhov kev xaiv zoo tshaj plaws.
