Q355GNH ntev npaum li cas los tsim Patina ruaj khov?

Jan 30, 2026 Tso lus

Ntau tus neeg siv ntawm Q355GNH Corten Steel tsis meej pem txog lub sijhawm rau nws qhov ruaj khov patina tsim - qee tus xav tias nws yuav loj hlob sai, thaum lwm tus neeg ntxhov siab los ntawm qeeb, tsis sib xws ntawm xeb hauv qhov chaw qhuav. Qhov kev tiv thaiv patina no yog qhov ua rau Q355GNH huab cua- tiv taus thiab qis- tu, yog li paub txog nws lub sijhawm tsim yog qhov tseem ceeb rau kev npaj ua haujlwm thiab kev cia siab zoo nkauj. Yog li, nws yuav siv sij hawm ntev npaum li cas rau Q355GNH los tsim patina ruaj khov, thiab dab tsi cuam tshuam rau cov txheej txheem no? Raws li kev sim teb thiab cov khoom siv, cov lus teb tseem ceeb yog qhov tseeb:Q355GNH Corten Steel siv sijhawm 6 mus rau 12 lub hlis los tsim kom muaj kev ruaj khov, tiv thaiv patina nyob rau hauv ib txwm muaj sab nraum zoov, nrog rau lub sijhawm sib txawv ntawm ib puag ncig thiab kev saib xyuas yooj yim.. Hauv qab no yog cov lus qhia yooj yim, ua tau zoo.

 

ASME Standard SA709 Corten Sheet

 

Ua ntej: Dab tsi yog "Stable Patina" rau Q355GNH?

The stable patina of Q355GNH is not ordinary loose rust-it's a dense, adherent layer that blocks further corrosion, and you can easily identify it:

Cov tsos mob: Evolves los ntawm ci steel grey mus rau reddish-xim av, ces mus rau ib qho xim tsaus xim av/charcoal grey; tsis muaj flaking, peeling, los yog powdery residue.

Core Function: Ib zaug tsim, nws txo qis Q355GNH tus nqi corrosion kom tsawg dua lossis sib npaug li 0.025mm / xyoo, tshem tawm qhov xav tau kev pleev xim lossis kev saib xyuas tsis tu ncua.

Lub ntsiab lus tseem ceeb: Q355GNH cov alloy muaj pes tsawg leeg (Cu, Cr, Ni) accelerates patina tsim me ntsis piv rau cov qauv Corten qib, tab sis nws tseem yuav tsum tau siv sij hawm los txhim kho tag nrho.

 

ASME Standard SA588 Corten Sheet

 

Patina Tsim Ncua Sijhawm los ntawm Ib puag ncig (Yuav Ua Tau Zoo Tshaj Plaws)

Qhov loj tshaj plaws uas cuam tshuam rau lub sij hawm tsim yog ib puag ncig - av noo, noo noo, thiab huab cua zoo ncaj qha los yog ua kom cov txheej txheem qeeb:

1. Cov av noo nruab nrab (Cov cheeb tsam hauv nroog / Suburban: 60-80% av noo)

Sijhawm Sijhawm: 6-8 lub hlis (kev tsim kho sai tshaj plaws).

Piv txwv li: Central Europe, sab hnub tuaj North America, thiab cov cheeb tsam huab cua nrog dej nag tsis tu ncua thiab kub me ntsis.

Vim li cas: Qhov sib npaug ntawm cov dej noo thiab cov pa oxygen ua rau cov tshuaj tiv thaiv ntawm Q355GNH cov ntsiab lus alloy, txhawb kev loj hlob ntawm patina.

2. Cov av noo siab (Tebchaws ntug dej hiav txwv / Marine: Ntau dua lossis sib npaug li 80% av noo)

Sijhawm Sijhawm: 4-7 lub hlis (ua kom nrawm los ntawm ntsev tsuag).

Kev ceev faj: Yaug qhov chaw nrog dej tshiab txhua hli kom tshem tawm cov ntsev ntxiv - qhov no tiv thaiv pitting hauv qab patina.

3. Tsis tshua muaj av noo (qhuav / Arid Area: Tsawg dua lossis sib npaug li 50% av noo)

Sijhawm Sijhawm: 9-12 lub hlis (kev tsim qeeb).

Yog vim li cas: Tsis muaj noo noo slows cov tshuaj tiv thaiv ntawm Q355GNH thiab huab cua, ua rau tsis sib xws patina txoj kev loj hlob.

4. Tsawg-Qhov chaw kub (-20℃txog 0 degree)

Sijhawm Sijhawm: 8-10 lub hlis (me ntsis qeeb dua li thaj chaw av noo).

Yog vim li cas: txias txias ua rau cov tshuaj tiv thaiv alloy, tab sis Q355GNH qhov qis -kub toughness ua kom patina tseem ua tib yam thaum muaj dej noo.

 

ASTM A588 Grade A Corten Steel Plate

 

Cov lus qhia yooj yim kom nrawm lossis tswj kev tsim Patina

Ceev: Yaug nrog dej huv txhua 2-3 lub hlis (tshem cov plua plav / roj uas thaiv cov tshuaj tiv thaiv); tsis txhob pleev xim lossis pleev xim rau saum npoo (blocks oxygen / noo).

Tsis txhob ncua sijhawm: Khaws Q355GNH kom deb ntawm cov roj, roj, lossis hmoov av hnyav (kev sib kis cuam tshuam kev loj hlob patina); xyuas kom zoo qhov cua kom tsis txhob ya raws buildup.

Tom qab-Kev Tsim Kho: Thaum patina ruaj khov, so nrog daim ntaub qhuav txhua xyoo kom tshem tawm cov plua plav- tsis tas yuav tsum ntxuav hnyav.

 

ASTM A588 Grade A Corten Steel Plate

 

Hauv cov ntsiab lus, Q355GNH Corten Steel cov ntaub ntawv ruaj khov patina hauv 6-12 lub hlis nyob rau hauv ib puag ncig sab nraum zoov, nrog rau ib puag ncig yog qhov tseem ceeb. Los ntawm kev nkag siab txog lub sijhawm ncua sij hawm no thiab ua raws cov kauj ruam yooj yim, koj tuaj yeem npaj koj qhov project kom zoo thiab xyuas kom Q355GNH muab nws cov huab cua tag nrho - tiv taus, tsis tshua muaj txiaj ntsig.