Dab tsi vuam hlau tsis xeb?

Xuas, ib daim ntawv ntawm hlau oxide, tshwm sim thaum hlau lossis hlau yog nthuav tawm cov dej noo thiab cov pa oxygen dhau sijhawm. Rau Vuam Txoj Haujlwm uas Corrosion Kuj yog tseem ceeb- Cov khoom siv sab nraum zoov ncaj qha {}}} lo lus limtiam. Thaum tsis muaj hlau hlau yog "xeb -}} Resistant alloys, muab kev tshwj xeeb tsis kam xeb thiab oxidation. Cov kev xaiv feem ntau cia poob rau hauv peb pawg: stainless hlau vuam hlau, thiab nickel {} raws li alloy vuam hlau.
Tus Hlau Stainless Hlau: Tus Qauv Kub Rau Rust Kuj
Stainless hlau vuam hlau yog qhov dav tshaj plaws siv xeb {{}}}} ionistant kev xaiv, ua tsaug rau nws cov ntsiab lus chromium (tsawg kawg 10.5%). Chromium reacts nrog oxygen los ua ib txheej oxide, ua yeeb yam raws li kev thaiv kev txhim kho kom tiv thaiv {}} txawm tias thaum kos los yog ya raws.
Cov qib kawm zoo li ER308 thiab ER304 yog tsim rau vuam 304 {{} hom stainless hlau, feem ntau ntau yam stainless hlau. Lawv Excel nyob rau hauv cov ntawv thov sab nraum zoov dav dav, xws li cov rooj tog Patio, cov tes xuas tes, thiab cov nyiaj npib sab nraum zoov. Rau cov chaw hnyav ib puag ncig {6 {... Molybdenum ntxiv dag zog rau cov oxide txheej, ua rau cov weld tiv taus pitting thiab crevice corrosion, ib qho teeb meem hauv qab ntsev los yog cov av noo.
Stainless hlau hlau ua haujlwm nrog MIG thiab TIG VUAM cov txheej txheem. Thaum ua khub nrog ib qho kev tiv thaiv roj (Argon lossis Argon {} Helium messtures uas phim rau cov xeb uas tsis muaj kev sib koom tes hauv Weld sib koom tes.
Txhuas Vuam Hlau: Rust - pov thawj los ntawm Xwm
Aluminium thiab nws cov aluminium tsis muaj xeb tsis muaj xeb -} ua tsis zoo li hlau, txhuas cov txheej txheej yuav luag tam sim ntawd thaum raug huab cua. Cov txheej no yog tus kheej-} kho kom zoo: yog khawb, nws hloov kho sai sai kom tiv thaiv cov oxidation sai. Aluminium Vuam cov xov hlau, xws li ER4043 thiab ER5356, Qiv, cov cuab yeej no los tsim Rust {}} tsis kam welds.
ER4043 yog qhov kev xaiv nrov rau dav dav aluminium vuam, suav nrog cov chaw automotive, kos npe sab nraum zoov, thiab lub teeb yuag. Nws muaj cov kua zoo thiab yog sib xws nrog feem ntau 6000-series aluminium alloys. ER5356, muaj cov magnesium, muab lub zog siab dua thiab ua kom zoo dua rau cov ntawv thov marine (zoo li lub nkoj halls) thiab cov txheej txheem aluminium tau nthuav tawm los nag lossis av noo.
Txhuas vuam hlau yuav tsum tau Tig lossis mig vuam nrog cov ntshiab sib cav thaiv cov roj kom tiv thaiv kom tsis txhob muaj paug. Thaum txhuas tsis muaj zog tiv thaiv kab mob corrosion (nws tuaj yeem raug kev sib cuag ntawm cov hlau), ua rau nws muaj xeb tag nrho rau cov dej num uas xeb yog qhov kev txhawj xeeb tseem ceeb.
Nickel -} Raws li cov xaim hluav taws xob vuam hlau: siab corrosion tsis kam
Rau cov phiaj xwm ntsib huab cua sov - Xws li}}}} Alloys Zoo li ernicrmo - 3 (inconel 625) thiab orni-1 (ntshiab li ntawm cov acids, alkalis, thiab kub-roj av.
Nickel {{0- Raws cov xov hlau tuab, cov txheej khov ruaj khov uas tau tiv thaiv kev ya raws, ntsev, thiab tshuaj lom neeg. ENLICRMO - 3, piv txwv li, yog siv rau weld nickel {}} molybdenum alloys, uas yog ib txwm muaj nyob rau hauv cov khoom siv marine engineering thiab cov khoom qias neeg. Cov hlau no kuj tseem cua sov - tsis kam, ua rau lawv haum rau cov xeb muaj xeb, xws li kev tso pa taws lossis cov cua sov.
Thaum noickel -} Raws cov xov tooj yog kim dua cov nqi tseem ceeb lossis kev ua tsis tau vim yog corrosion yuav muaj kev rau kev loj heev.
TSEEM CEEB TES RAU LUV - ion reedantant vuam
• Ua kom phim cov hauv paus hlau: Los xyuas kom muaj xeb sib cuam tshuam tsis kam, cov hlau vuam yuav tsum sib xws nrog lub hauv paus hlau. Piv txwv li, siv ER316 xaim nrog 316 stainless hlau, lossis ER5356 nrog 5000-series aluminium. Mismatched cov xov hlau tuaj yeem tsim cov hlwb galvanic, ua rau corrosion ntawm weld sib koom tes.
• Kev thaiv cov roj teeb: xeb akaters: xeb - Cov xov hlau tiv taus kom muaj kev tiv thaiv zoo los tswj lawv cov khoom corrosion. Stainless hlau thiab Nickel alloys xav tau gases kom tiv thaiv oxidation thaum lub sij hawm sib tshuam ntawm argon kom tsis txhob muaj qhov ntxig thiab paug.
• Ncej - Weld Care: txawm tias xeb {{} {Resistant Welds tau txais txiaj ntsig ntawm Minimal Post-} weld tu. Piv txwv li cov hlau stainless, tej zaum yuav xav tau kev pab them nqi (kev siv tshuaj lom neeg) los kho cov roj chromium oxide yog qhov raug paug rau cov paug hauv vuam.
Xaus: Xaiv raws li ib puag ncig thiab cov khoom siv
Tsis muaj tus hlau txuas ntxiv rau txhua hom kev corrosion, tab sis necel {} based alloy muaj cov xeb zoo dua rau cov ntawv thov zoo dua. Stainless hlau hlau yog qhov kev xaiv tsim nyog rau sab nraum zoov thiab kev siv hlau ua, xeb} Cov phiaj xwm pub dawb, thiab Nickel {3} Raws li cov hlau ua haujlwm.
Los ntawm kev xaiv cov hlau uas phim cov hauv paus ntawm cov hlau thiab cov kab mob ib puag ncig muaj zog thiab siv sijhawm ua tiav rau cov qauv tas li.