1. Tub Ntxhais Kev Tshuaj Siv Tshuaj Ntau
Qhov tshwj xeeb alloying ntsiab thiab lawv feem pua yog qhov tseem ceeb rau kev sib sau ua ruaj khov, tiv thaiv Patina.
| Lub ntsiab | Lub luag haujlwm hauv Patina Tsim | Corten A (ASTM A242) | Q355NH (GB / T 4171) | Uas cuam tshuam |
|---|---|---|---|---|
| Phosphorus (p) | Tseem ceeb.Ua kom nrawm nrawm nrawm ntawm qhov ua kom nruj, cov txheej txheej amorphous uas thaiv txuas ntxiv corrosion. | Siab dua (0.07 - 0.15%) | Qi dua(Tsawg dua los yog sib npaug rau 0.020%) | Corten ib txwm ua nws cov patina sai duaVim nws cov ntsiab lus P Ntsiab Lus. |
| Tooj Liab (Cu) | Hauv paus.Cov foos insoluble tooj liab teb uas tau muab cov xeb xeb thiab txo qis dua nws cov haujlwm hauv electrochemical. | Siab dua (0.20 - 0.40%) | Zoo ib yam (0.20 - 0.50%) | Ob yam txiaj ntsig los ntawm Cu cov nyhuv tiv thaiv. |
| Chromium (cr) | Yuam sij rau kev ruaj khov.Cov ntaub ntawv ntom chromium oxides uas muaj insoluble thiab ntxiv dag zog rau lub patina. | Siab dua (0.50 - 1.25%) | Me ntsis qis dua (0.40 - 0.80%) | Corten A yuav tsim ib qho me ntsis ntau ruaj khov thiab resistant txheej ua ib puag ncig ua rau ib puag ncig. |
| Npib tsib caug (ni) | Txhim kho kev nruj thiab corrosion tsis kam, tshwj xeeb hauv kev lag luam cua. | Yam ua tau(feem ntau tam sim no) | Qi dua(Tsawg dua los yog sib npaug rau 0.40%) | Corten A yuav muaj kev kawm zoo hauv kev ua qias tuaj (sulfurous) ib puag ncig. |
Cov ntsiab lus ntawm kev sib xyaw:Ntau dua phosphorus thiab chromium cov ntsiab lus hauvCorten afeem ntau ua rau aSai kev pib patinathiab aMuaj feem ntau ruaj khov thiab tiv thaiv txheej txheem tiv thaivHauv kev khiav ntev, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig me me.
2. Qhov sib txawv ntawm kev tsim ceev
Corten A (ASTM A242):Vim nws siab duaPhosphorusCov ntsiab lus, thawj zaug xeb txheej yog nrawm. Nws yuav txhim kho nws cov xeeb ntxwv xim thiab pib cov txheej txheem stabilization ntau dua sai dua li cov hlau nrog qis dua p ntsiab lus. Thawj cov dej ntws tawm kuj tseem yuav hais tawm ntau ntxiv.
Q355NH:Nrog nws cov ntsiab lus tsawg heev ntawm phosphorus tsawg heev, thawj xeb thawj zaug yuav yog qeeb qeeb. Cov txheej txheem muab ntau dua ntawm cov nyhuv synergistic ntawm tooj liab thiab chromium. Cov xim hloov pauv tuaj yeem ua tiav ntau zuj zus.
3. Qhov sib txawv hauv ntev - lub sij hawm ruaj khov & kev ua tau zoo
Qhov no yog qhov tseem ceeb tshaj plaws. Thaum ob qho tib si yuav ua ib qho kev tiv thaiv patina hauv cov chaw ib puag ncig uas haum, lawv txoj kev ua tau zoo tuaj yeem ua rau:
Hauv cov qauv huab cua(Nyob deb nroog / Nroog nrog cov ntshiab ntub - Lub voj voog qhuav): Ob Qib Tau Qhuav Zoo heev thiab ua ib qho ruaj khov, tiv taus Patina. Qhov ua tau zoo sib txawv tej zaum yuav tsis negligible rau lub qhov muag liab qab.
Nyob rau hauv ib puag ncig ib puag ncig(Nqaum, siab chloride, muaj kuab paug siab):
Siab duaYeebsabthiab xaiv tauTus menyuam yausCov ntsiab lus hauv corten ib qho muab nws lub theoretical kom zoo dua. Cov ntsiab lus no ua cov compoundle uas zoo dua ntawm kev tiv thaiv kua qaub cov pa kua qaub (sulfates) thiab chloride ions.
Q355, thaum tseem muaj cov huab cua hlau, yuav muaj kev mob me ntsis siab dua lossis siv sijhawm ntev dua rau nws lub patina kom ua tiav hauv cov xwm txheej hnyav no. Lub Patina kawg tej zaum yuav tsis tshua muaj ntom.
Ncaj qha sib piv rooj
| Yam zoo | Corten A (ASTM A242) | Q355NH (GB / T 4171) |
|---|---|---|
| Thawj tus qauv | ASTM (USA) | GB / T (Suav teb) |
| Qhov tseem ceeb PATINETHTATOR | Siab phosphorus (p) | Qis dua phosphorus (p) |
| PATINA GRIMATION CEEV | Sai(Vim tias muaj p) siab | Nruab nrab ceev |
| Patina stability | Zoo tshaj, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig me nyuam | Zoo heev |
| Kev ua tau zoo nyob rau hauv kev sib ntaus sib tua | Zoo dua(Vim yog siab dua Cr, xaiv NI) | Zoo |
| Daim Ntawv Thov Tseem Ceeb | Cov Cuab Yeej Tsim Kho, Duab puab, cov qauv qauv. | Txuas hniav, vaj tse vaj tse, ntim. |
Tag
Xav txog nws raws li lub spectrum ntawm kev ua tau zoo:
Corten afeem ntau txiav txim siab aHwm Cua HlauNrog cov tshuaj qhia tshuaj lom zem rau kev tsim ceev patina tsim thiab ua tau zoo. Nws yog ib qho kev mus -}}}}}}}}}}}}}}}}}}}}}}} agonic kev thov thiab duab puab cov kev ua yeeb yam thiab cov kev ua tau zoo.
Q355NHyog ib qhozoo heev, nqi -}} huab cua zoo hlauuas ua tau raws li cov qauv kev nyab xeeb thiab huab cua. Nws yog qhov muaj ntau heev thiab muaj kev vam meej nyob rau hauv cov ntawv thov qauv zoo li choj thiab kev tsim cov thav ntawv, tshwj xeeb hauv Asia.
Rau ob qho qib, tsim kom tsim nyog (kom tsis txhob muaj dej ntaiv thiab cia qhov kev xaiv tshuaj ntsuab) tsuas yog ua kom muaj cov ntaub ntawv xaiv patina kom raug thiab tseem ruaj khov.
