Ntev npaum li cas tuaj yeem ua rau corrosion tsis kam ntawm Q235NHA Weathering hlau kawg? -} kev paub

Lub corrosion resistance livedance lifespan ntawm Q235NHA Weathering Steel yogtsis yog tus nqi ruaj khov{{0- Nws nyob ntawm peb lub ntsiab lus: tusLwm Qhov Chaw Haujlwm, Nto State (seb PATINA daim foos stably), thiabTxij Nkawm NtsuasCov. Nyob rau hauv cov kev ua haujlwm raug, nws txoj kev ua tau zoo corrosion tau kawg15-50 xyoo, thiab txawm tias ntev dua nyob rau hauv cov chaw me me nrog kev saib xyuas kom zoo. Hauv qab no yog cov ncauj lus kom ntxaws:

1. Tub ntxhais mechanism: vam khom "ruaj khov patina"

Q235NHA yog tus qauv Suav (GB / T 4171) cov khoom siv corrosion - Cov hlau tiv taus cov khoom siv xws liCU (0.20-0.50%), CR (0.30-0.80%), thiab p (0.07-0.15%)Cov. Nws corrosion resistance zoo siab rau kev sib sau antom, adherent oxide zaj duab xis (patina)Nyob saum npoo thaum raug rau cov cua. Zaj duab xis no thaiv cov xov xwm corrosive (noo noo, oxygen, pollutants) los ntawm penetrating cov hlau substrate, loj qeeb qeeb qeeb corrosion.

Lub neej ntawm Q235NHA yeej tseem ceeb sib npaugKev pabcuam lub neej ntawm qhov ruaj khov patina-}} Yog lub patina tsis puas los yog rhuav tshem, cov hlau yuav tswj tau ntev}} lub sij hawm corrosion; Yog tias lub patina tawg (piv txwv li, los ntawm cov kws kos duab kos, tshuaj yaig), corrosion hauv zos yuav nrawm.

2. Cov Ntsiab Lus Tseem Ceeb 1: Chaw Pabcuam (Cov Cuam Tshuam Loj)

Cov cua lub corrosiveness ncaj qha txiav txim siab patina tsim kev tsim nrawm thiab ruaj khov, ua rau qhov sib txawv ntawm lub neej:

Ib puag ncig hom	Corrosiveness qib	PATINE Tsim Sij Hawm	Kwv yees kev txhim kho corrosion resistance lab
Nyob deb nroog / chaw me	Tsawg (huv si huab cua, qis av noo)	1-3 xyoos (cov khaub ncaws patina)	30 - 50+} xyoo
Cov Cheeb Tsam Hauv Nroog (Tsis - muaj khoom)	Nruab nrab (penutants me me zoo li hmoov av)	2-4 xyoos	20-35 xyoos
Muaj ib cheeb tsam (piv txwv li, ze rau cov chaw ua haujlwm nrog cov pa tawm)	Siab (Acidic Pollutants)	3-5 xyoos (patina tej zaum yuav tsis sib xws)	15-25 xyoos
Thaj chaw ntug hiav txwv (tsis pub dhau 10km ntawm lub hiav txwv)	Heev siab (ntsev tsuag)	1.5-3 xyoos (ntsev nrawm nrawm nrawm tab sis txaus ntshai hauv zos corrosion)	10-20 xyoo (xav tau kev tiv thaiv ntxiv)

NCO TSEG: Hauv cov ntug dej hiav txwv, cov tshuaj ntsev me me tuaj yeem ua rau muaj kev sib tsoo me me, ua rau "pittees}

3. TSEEM CEEB TSHEEJ 2: Lub xeev tseem ceeb thiab ua ntej ua ntej- kev kho

PATINE Tsim Zoo: Yog Q235NHNHA yog pleev xim lossis coated thaum pib siv, lub patina tsis tuaj yeem ua ib txwm ua. Thaum cov txheej txheej tawm, cov kab mob loj yuav corrode sai dua li uncoated steel (vim tias cov nplaim tauj muaj ua ntej- tsim cov yeeb yaj kiab tiv thaiv). Vim li no, Q235NHNA feem ntau yog sivtsis muaj txheej(Txhawm rau tso cai rau kev txhim kho lub ntuj patina).

Nto huv: Roj, plua plav, lossis vuam sib tw rau saum npoo yuav ncua sij hawm pata tsim thiab ua rau muaj kev xeb tsis sib xws. Ua ntej ua ntej ua ntej {{{{{{1}, tshem tawm cov paug ua ntej kev teeb tsa ua ntej) tuaj yeem txuas lub neej los ntawm 5-10 xyoo.

4. TSEEM CEEB TSHEEJ 3: kev saib xyuas txij nkawm

Q235NHA hu ua "Qis {{{{1} Kev tu" hlau, tab sis kev saib xyuas yooj yim tuaj yeem txuas ntxiv nws lifespan)

Tu tas li: Tshem tawm cov plua plav ntxiv, nplooj, lossis cov noog tso dej noo (cov no tuaj yeem tso dej noo thiab ua rau muaj xeb hauv zos) 1-2}} siab} qhov siab} qhov siab} qhov siab} cov dej txhuam lossis xaim txhuam.

Kho kho cov Patina puas: Yog tias cov nplaim taw kos (piv txwv li, los ntawm kev sib txawv (kom nws cov xim tsis zoo) thiab cia nws rov qab ua cov xim patining dog dig (uas yuav thaiv cov patina zoo ib yam).

Zam kev ntev - lub sij hawm immersion: Q235NHNHA yog tsim rauatmospheric corrosion, tsis tau raus hauv dej los yog av. Ntev - Lub sij hawm sib cuag nrog cov dej sawv yuav ua rau Patina kom yaj yuav tsawg dua 10 xyoo.

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