TusUV KujthiabLaus KujntawmS355J0WP Weathering Hlau(Per ENG --25-5) tau khi ze rau nws lub peev xwm los ua ib qho ruaj khovKev tiv thaiv Patinanyob rau hauv qhov xwm txheej tsis raug. Ntawm no yog cov ncauj lus kom ntxaws ntawm nws cov kev ua tau zoo:
1. UV Kuj
Cov nyhuv ntawm lub hnub ci:
UV hluav taws xob nws tus kheej tsis demrade cov hlau tab sis nrawm ntawmKom qhuav / ntub puag nciguas tsav patina tsim.
Tus Hlaualloying ntsiab (Cu, CR, NI, P)Txhim khu UV-induced oxidation tsis kam los ntawm kev txhawb zog ntom ntom, cov txheej txheem xeb.
Tus cwj pwm nto:
Nyob rau hauv lub caij nyoog UV raug (piv txwv li, nyob rau hauv Suny Close), PATINA cov foos sai dua thiab ua ib yam nkaus.
Tsis zoo li cov polymers lossis txheej, steel tsis raug kev txom nyemUV-inducened brittleness lossis fading.
2. Kev laus tiv thaiv (ntev-lub sijhawm ntev)
A. PATINE tsim
Thaum Kawg Paum (1-5 xyoos):
Rust txheej txheej thiab evolves; Corrosion tus nqi yog siab dua (5-20 μm / xyoo).
Kev hloov pauv xim los ntawm txiv kab ntxwv-xim av rau tsaus xim av / dub.
Kev ruaj khov theem (5+ xyoo):
Patina dhau los ua tuab thiab kev txo tus kheej, txo kev xeb rau1-5 μm / xyoohauv huab cua huab cua sov.
B. TSEEM CEEB TSHEEJ TSHWJ XEEB
| Yam tseem ceeb | Cuam tshuam rau kev laus | Me quav |
|---|---|---|
| Kev vaum | Cov av noo nrawm txog Patina tsim tab sis yuav ua rau xeb tsis sib xws hauv cov chaw tsis huv. | Xyuas kom tau qhov chaw tso quav; Zam kev ntxiab dej. |
| Cov pa phem (so₂, clr) | Kev lag luam / dej hiav txwv ib puag ncig ua haujlwm nrawm thiab tej zaum yuav ua rau lub patina. | Siv cov txheej txheem tuab tuab lossis cov qauv tsim hauv cov cheeb tsam hnyav. |
| Cyclic ntub / Qhuav | Qhov tseem ceeb rau kev ruaj khov Patina; Arid huab cua puag ncig kev laus. | Tsim rau airflow / tso dej. |
C. Cov Khoom Siv Khoom Siv C. Cov Khoom Siv Hluav Taws Xob
Lub zog tensile / paib lub zog: Feem ntau tsis muaj kev cuam tshuam los ntawm kev laus; Poob yog negligible (<2% over 50 years in mild environments).
Qaug zog lub neej: Tej zaum yuav txo qis me ntsis hauv kev qaug zog nkees (hais los ntawm cov qauv tsim qauv).
3. Kev sib piv
| Ntiag tug | S355J0WP (Weathering Hlau) | Carbon Steel (tsis muaj huab cua) |
|---|---|---|
| Uv Kev Ruaj Ntseg | Tsis muaj (MATHATHED) | Tsis muaj (tab sis xeb nce zuj zus) |
| Kev laus tus nqi | Yus tus kheej kev txwv tom qab patina | Nruam Cov Khoom Siv Tsis Tau |
| Kho | Tsawg kawg (tsis muaj lub tsho tshaj) | Yuav tsum tau pleev xim / hloov |
4. Txwv
Kev Lom Zem Zoo Nkauj: Cov xim thiab kev hloov pauv hloov thaum lub sijhawm (tej zaum yuav tsis haum rau txhua tus tsim kev tsim qauv).
Txhoj puab heev ib puag ncig: Nyob rau hauv ntug dej hiav txwv (siab heev) lossis cov chaw muaj kuab paug, cov kev tiv thaiv ntxiv (piv txwv li, cov tsho tiv no.
5. Cov Qauv & Cov Kev Ua Haujlwm Zoo
EN 10025-5: Qhia txog cov khoom siv hluav taws xob hlau.
ISO 9223: Corrosivate cov kev faib tawm rau ib puag ncig kev yoog.
Cov Lus Qhia Tsim:
Zam kev ua cov ntxiab / av.
Pubdej ntwslos tiv thaiv kev ua kom huv.
