Hauv kev ua teb niaj hnub tsim Vuam, Er2209 Duplex Stainless Hlau tau dhau los ua cov khoom siv tseem ceeb hauv cov khoom siv hluav taws xob, lub zog thiab lwm yam kev lag luam vim nws cov khoom tshwj xeeb. Kab lus no yuav soj ntsuam cov txiaj ntsig zoo thiab kev lag luam muaj txiaj ntsig ntawm cov qauv ntawm cov qauv ntawm cov qauv ntawm cov qauv ntawm cov qauv ntawm cov qauv ntawm cov qauv ntawm cov qauv ntawm cov qauv tshuaj, kev ua yeeb yam thiab daim ntawv thov cov ntawv thov.
Kev faib tawm thiab muab ntawm Er2209
Er2209 yog ib qho Austenite-ferrite dulex stainless hlau stainless hlau, thiab nws yog tus qauv thoob ntiaj teb (xws li AWS A5.9). Raws li cov muaj pes tsawg leeg thiab siv cov hlau vuam, ER2209 tau muab cov khoom siv tshwj xeeb rau cov khoom siv tshwj xeeb, thiab cov pa roj hmab tsis zoo xws li 022cr22ni5mo3n (sus 2205). Piv nrog rau lwm cov xov hlau vuam (xws li ER2553 thiab ER2594), Er2209 muaj ntau dua cov ntsiab lus ntawm corrosion (txog 8.5% lub zog ntawm lub weld.
Cov tub ntxhais siv tshuaj pes tsawg leeg thiab kev ua tau zoo
Cov tshuaj lom neeg muaj pes tsawg leeg ntawm ER22 0 9 yog tsuas yog 22 {2}} n {3}} mo-n. Los ntawm kev tswj cov ntsiab lus ntawm cov ntsiab lus xws li carbon (tsawg dua los yog sib npaug ntawm cov nyiaj sib npaug thiab kev sib npaug ntawm cov zog thiab xeb tsis kam. Cov ntsiab lus ferrite nyob rau hauv nws cov khoom tso tawm cov hlau yog kwv yees li 40%, uas ua ke cov tawv nqaij tawv nrog cov kev nyuaj siab tiv thaiv kab mob ferritic. Kev sim cov ntaub ntawv qhia tau hais tias lub zog tensile ntawm ER2209 Welds tuaj yeem ncav cuag ntau dua 690Mpa, thiab kev tshawb fawb loj dua los yog sib npaug rau 20%. Nws nthuav tawm zoo heev pitting thiab tawg tsis kam nyob rau hauv chloride ib puag ncig.
Ib qho ntxiv, cov txheej txheem vuam ua haujlwm ntawm Er2209 Vuam hlau yog qhov tseem ceeb rau kev ua haujlwm siab, thiab txhawb nqa txhua txoj haujlwm siab, uas yog tsim nyog rau cov kev ua haujlwm siab.
Daim Ntawv Thov Field thiab Kev Lag Luam Muaj Nqi
Cov txheej txheem zoo ntawm ER2209 ua rau nws dav siv nyob rau hauv kev tsim khoom ntawm cov khoom tseem ceeb hauv kev nyab xeeb ib puag ncig:
Petrochemical thiab Tshuaj Kev Lag Luam: Siv rau vuam cov khoom siv xws li reactors thiab siab cov hlab ntsha kom tawm tsam yaig los ntawm corrosive tawm xov xwm.
Marine Engineering:Haum rau ntug dej hiav txwv thiab dej hiav txwv dej hiav txwv kom tiv thaiv kev nyuaj siab corrosion hauv chloride ion ib puag ncig.
Daim teb hluav taws xob:Kev kub-kub thiab siab-siab xa vuam nyob rau hauv nuclear hwj chim nroj tsuag thiab kev ua dua tshiab kom ntseeg tau tias kev ntseeg tau ntev ntev.
Cov Khoom Tiv Thaiv Ib Cheeb Tsam:tsim cov tshuaj corrosion-resistant sib xyaw ua ke rau cov chaw lim dej thiab cov roj fluulfurization.
Noj cov phiaj xwm petrochemical ua piv txwv, 2205 duplex pipel reels muaj chlosion thiab tawg, txo qis cov nqi kho.
Kev sib piv nrog lwm cov xov hlau relged
| Vaub hlau qauv | Lub ntsiab | Siv tau cov khoom siv Base | Cov yam ntxwv ua tau zoo |
|---|---|---|---|
| Er2209 | 22 {-9 ni -3 mo-n | 2205 Duplex Stainless Hlau | Tiv taus pitting thiab kev ntxhov siab corrosion, nrog ntsuas kev ua tau zoo |
| Er2553 | 25Cr -7 ni -4 mo-n | 25% CR DUPLEX Stainless Hlau (xws li S32550) | Siab dua lub zog, zoo heev kev kub siab kuj |
| ER2594 | 25Cr -7 ni {-4 mo-cu-n | Super Duplex Stainless Hlau (xws li S32750) | Ultra-siab corrosion tsis kam, pren ntau dua los yog sib npaug rau 40 |
Nws tuaj yeem pom tau tias Er2209 muaj irreplaceable zoo nyob rau hauv lub vuam ntawm 22cra cov ntaub ntawv, tshwj xeeb yog tsim nyog rau lub zog ntawm lub zog thiab cov txheej txheem hauv kev xeb ib puag ncig.
Ceev faj rau kev siv
Txhawm rau muab kev ua si tag nrho rau kev ua haujlwm ntawm Er2209, kev saib xyuas yuav tsum tau them rau cov hauv qab no thaum lub sijhawm vuam:
- Kev thaiv cov roj: nws raug nquahu kom siv dawb huv argon lossis ar +1-3% thiab tus nqi txaus yuav tsum tau tswj hwm ntawm {1}} l / min.
- Tam sim no tsis tau: Xaiv 120-220 A DC tam sim no raws li lub cav hlau (xws li 1.2mm) kom tsis txhob overheating thiab nqaij demadation.
- Kev Kho Mob Ua Ntej: Tshem cov roj thiab xeb ntawm cov niam txiv cov khoom siv kom ntseeg tau tias vuam muag.
- Kev tswj hwm ib puag ncig: thaum cua nrawm yog ntau dua 1.5m / s, windproof ntsuas yuav tsum tau los tiv thaiv kom tsis txhob muaj qhov hws.
Kev Lag Luam Outlook
Raws li kev lag luam thoob ntiaj teb tsim rau cov kev tsis sib haum xeeb thiab corrosion tsis kam, daim ntawv thov thov rau lub duplex stainless hlau txuas ntxiv mus. Raws li tus khub "Golden Golden" ntawm 22Cr koob tshiab chav hlau, ER2209 cov lag luam sib koom ua ke nrog kev nthuav dav ntawm lub zog tshiab, kev tsim khoom loj thiab lwm thaj teb. Nyob rau yav tom ntej, los ntawm kev ua kom zoo alloy muaj pes tsawg leeg muaj pes tsawg leeg thiab cov txheej txheem vuam, Er2209 yuav ua rau nws lub peev xwm ua haujlwm ntau dua los txhawb kev ua haujlwm txhawb nqa kev lag luam.
