Raws li lub duplex stainless hlau vuam cov khoom, er2209 yog cov khoom lag luam ntawm Petrochemical, nkoj hluav taws xob thiab lub zog nuclearing thiab kev ua tau zoo heev.
Tshuaj lom neeg muaj pes tsawg leeg ntawm Er2209
Raws li ntau cov ntaub ntawv tshawb fawb, lub hauv paus tseem ceeb (feem pua loj) ntawm Er2209 yog raws li hauv qab no:
- Cov pa roj carbon (c): {{{{0}}}}}}. 01% (cov txiaj ntsig tsawg)
- Chromium (CR): 22.8% ~ 23.1% (txhim kho oxidation tsis kam thiab pits tiv taus)
- Nickel (NI): 8.5% ~ 8.7% (Ruaj Khetenite theem thiab txhim kho kev nruj)
- Molybdenum (MO): 3.1% ~ 3.2% (txhim kho chloride ion colrosion tiv taus)
- Manganese (MN): 1.4% ~ 1.6% (Pab rau deoxidation thiab cov txheej txheem ua haujlwm zoo)
- Silicon (si): {{{0}}}}. 4% ~ 0.5% (txhim kho cov txiv neej npau taws.
- Nitrogen (n): {{{{0}}}}}}}. 15% ~ 0.16% (txhawb nqa Austenite tsim thiab txhim kho lub zog)
Qhov muaj pes tsawg leeg yog tsim kom sib npaug ntawm cov theem ferrite thiab feem ntau yog li 50% txhua), kom ntseeg tau cov khoom muaj ob lub zog siab thiab ua kom zoo.
Kev ua tau zoo thiab kev siv lag luam
1. Zoo heev corrosion tsis kam
ER2209 ua tau zoo hauv cov tshuaj chlorine-muaj xws li nyob rau hauv lub zog hluav taws xob ib puag ncig cua sov pas dej cawv (xws li 304l / ER316L). Cov kev tshawb fawb tau pom tias nws cov polarization nkhaus hauv ib qho kev sim dej hiav txwv ib puag ncig (3.5% nacl daws teeb meem.
2. Cov khoom siv zoo tshaj plaws
- Kev Cuam Tshuam Cov Khoom Siv: Cov pob qij txha welded nrog er2209 muaj lub zog nqus cov nqi (txog 70 tus cuam tshuam zoo dua li ER312 thiab ER316L Vuam cov ntaub ntawv.
- Hardness thiab lub zog: Qhov nruab nrab nyuaj ntawm lub cheeb tsam weld yog 2425.7 MPA zoo dua li cov vuam cov khoom -3.
3. Vuam Adjustability
ER2209 yog tsim nyog rau vuam dissimilar hlau (xws li ustenitic thiab martensitic stainless hlau). Nws spherical Austenite microstructure (Daim duab 10) txo cov kev sib tw tawg thiab txhim kho kev sib koom ua ke sib koom tes. Nyob rau hauv lub vuam ntawm nkoj tshuaj ntsuam kev tso tsheb hlau luam thiab api pipelines, nws yog commuam rods thiab ntawv pov thawj los ntawm cov qauv Asme yam tsis muaj mobileographic tsis muaj mob.
Kev tshawb fawb kev txhawb nqa thiab yav tom ntej kev cia siab
Ntau cov kev tshawb fawb (xws li Gokul Kumar li al., Başyigit et al. Nyob rau yav tom ntej, nrog rau kev txhim kho kev tsim khoom thiab sib nqus-pab vuam siv thev naus laus zis, cov peev txheej hauv cov txheej txheem nyuaj hauv Er2209 yuav raug tso tawm ntxiv.
Tag
ER2209 tau dhau los ua cov khoom siv uas nyiam tshaj plaws rau cov khoom siv vuam vim nws cov qauv kev tshawb fawb thiab muaj ntau hom xwm txheej. Nws cov yam ntxwv ntawm kev sib txuas ua ke lub zog, kev nruj thiab corrosion tsis kam yuav txuas ntxiv txhawb kev ntseeg tau thiab kev nyab xeeb ntawm cov cuab yeej siv siab siab.
