1. Dab tsi yog A423 Weathering steel?
ASTM A423yog tus qauv rauSeamless thiab hluav taws xob-resistance-welded (ERW) Tsawg-Alloy Steel LeegnrogHuab Cua Kuj(zoo ib yam liCorten steel).
Tseem ceeb alloying ntsiab:
Tooj (CU), chromium (cr), npib tsib), phosphorus (p)- Txhawb kev tsim ntawm cov txheej oxide txheej.
Kev siv ntau yam:
Cov qauv sab nraum zoov (cov choj, Facades, Rail tsheb)
Cov ntawv thov architectural (duab puab, lub tsev cladding)
Kev lag luam thiab tshuaj ib puag ncig (nrog kev sib zog corrosion)
2. Vim li cas cov txheej yog feem ntauTsisXav tau?
Tus HlauKev tiv thaiv Patinatxhim kho nyob rau lub sijhawm vim:
Nws tus kheej kho cov txheej xeb:Cov alloy ua cov tuab tuab, cov khoom siv xeb ua kom qeeb ntxiv.
Atmospheric tiv taus:Ua tau zoo hauvNyob deb nroog, Nroog, thiab Kev lag luamIb puag ncig (tsis yog rau ntug hiav txwv / marine siv).
Cov nqi txuag tau nyiaj:Tshem tawm cov txij nkawm ntev ntev (rov ua dua, ua haujlwm).
3. ThaumTej zaumTxheej yuav tsum tau?
Thaum A423 yog tsim los rau kev puas tsuaj rau kev sib tw, kev zam suav nrog:
Ntug hiav txwv dej- High chloride raug (SEALWASCH) accelerates pitting; Epoxy Txheej ci yuav tsum muaj.
Kev Siv Tshuaj- acidic / alkaline ib puag ncig (xws li, cov nroj tsuag tshuaj) yuav xav tau cov ntaub ntawv tiv thaiv kev tiv thaiv.
Kev tswj kom zoo nkauj- Yog tias muaj xim tshwj xeeb / ua tiav yog qhov xav tau (piv txwv li, kom tiv thaiv kev xeb tsis sib xws thaum lub sijhawm thaum ntxov).
4. Kev sib piv: Huab Cua Hlau vs. Painted Carbon Steel
| Yam tseem ceeb | A423 Weathering Hlau | Xim Turbon Steel |
|---|---|---|
| Corrosion tiv thaiv | Yus tus kheej tiv thaiv Patina | Yuav tsum muaj qhov rov ua dua |
| Kho | Tsawg tsawg | High (Tshawb xyuas / Repain txhua 5-10 xyoo) |
| Lub neej | {{0 {}} xyoo (hauv huab cua uas haum) | 20-30 xyoos (nrog kev txij nkawm) |
| Tus nqi | Siab dua upfront, qis dua lub neej | Qis dua upfront, siab dua lub neej |
