Nyob rau hauv lub realm ntawm npib tsib xee-chromium-hlau vuam electrodes,Enicrfe -2thiabEnicrfe -3yog ob qho kev cuam tshuam nrog tab sis txawv cov tub lim hlau cov hlau cais raws li AWS A5.11 tus qauv. Ob qho tib si yog tsim rau vuam nickel-raws li alloys zoo li inconel 600 (tsis zoo cov ntaub ntawv sib txawv hauv kev sib xyaw, thiab daim ntawv thov sau tseg rau cov kev sib tw. Kab lus no tsoo lawv cov txuj ci kev sib txawv, pab xaiv cov engineers thiab cov neeg tua tsiaj xaiv cov khoom siv tau zoo rau kev kub siab thiab kev ua kom haum.
Tshuaj lom neeg siv tshuaj: Cov kev sib txawv
Thawj qhov kev sib txawv ntawm lawv cov ntsiab lus, uas cuam tshuam ncaj qha corrosion distance, kev ua tau zoo, thiab kub siab ua tau zoo:
| Lub ntsiab | Enicrfe -2 | Enicrfe -3 |
|---|---|---|
| Npib tsib caug (ni) | Ntau dua los yog sib npaug rau 62% | Ntau dua los yog sib npaug rau 67% |
| Chromium (cr) | 14–17% | 15–18% |
| Hlau (FE) | 6–10% | Tsawg dua los yog sib npaug rau 5% |
| Molybdenum (mo) | Tsis teev | 1.5–3.0% |
| Lwm Yam Ntxiv | Tsawg dua li lossis sib npaug rau 1.5% mn, tsawg dua lossis sib npaug rau 0. 1% C | Tsawg dua los yog sib npaug rau 1.5% mn, tsawg dua los yog sib npaug rau 0. 1%}. 5% ti |
Tseem Ceeb Takaways:
Siab dua npib xee nyob rau hauv enicrfe -3: Cov ntsiab lus tsib xee tsawg dua (ntau dua lossis sib npaug zos rau 62% vs. ntau dua lossis sib npaug ntawm 62%) txhim kho oxidation tsis kam thiab kev sib luag ntawm cov kub.
Molybdenum ntxiv nyob rau hauv enicrfe -3: Kev suav nrog 1.5-3. {0 mo txhim kho kom haum raupitting thiab crevice corrosionHauv chloride ib puag ncig (piv txwv li, dej hiav txwv, cov nroj tsuag tshuaj).
Txo cov hlau hauv enicrfe -3: Cov hlau qis dua cov ntsiab lus tsis yooj yim rau embrittlementLementLementLement hauv kev pab kub siab.
Cov Khoom Siv Neeg Kho Tshuab
| Ntiag tug | Enicrfe -2 | Enicrfe -3 |
|---|---|---|
| Lub zog tensile | 550-690 MPA (80-100 KSI) | 620-760 MPa (90-110 ksi) |
| Paib lub zog | 240-410 MPa (35-60 KSI) | 340-550 mpa (50-80 ksi) |
| Elongation | 30–40% | 25–35% |
| Kev Cuam Tshuam | Ntau dua los yog sib npaug rau 80 j ntawm 20 degree (68 degree f) | Ntau dua los yog sib npaug rau 60 j ntawm 20 degree (68 degree f) |
ENiCrFe-3 offers higher tensile and yield strength due to molybdenum and refined nickel content, while ENiCrFe-2 provides better elongation and impact toughness.
Cov ntawv thov thiab kev ua tau zoo
Enicrfe -2
Raug Siv Siv:
VuamInconel 600nyob rau hauv ib puag ncig-ib puag ncig (mus txog700 degree / 1,292 degree f).
Cov ntawv thov hauvKev Lag Luam(xws li, nitric acid tso tsheb hlau luam, caustic sowsfa reactors).
Lub Zog LojCheebtsam zoo li boiles leeg thiab chav hets taub hau.
Lub zog:
Kev siv Ductility zoo dua rau cov ntawv thov thermal cycling.
Raug nqi rau cov tsis muaj chloride ib puag ncig.
Enicrfe -3
Raug Siv Siv:
VuamInconel 600/601hauvHigh-chloride lossis high-sulfur ib puag ncig(Xws li, platform ntug dej, Flue Roj Desulfurization).
Nuclear ReactorsthiabRoj Turbinesxav kom tsis kam mus rau nkag thiab cua sov.
Petrochemical cov cuab yeej raug rauSour roj (h₂s)thiab seawater.
Lub zog:
Superior pitting thiab kev nyuaj siab corrosion cracking (SCC) tsis kam.
Txhim kho siab-kub zog (mus txog1, {000 degree / 1,832 Qib F).
Vuam cov yam ntxwv
| Chaw ua uas tsis tau haus | Enicrfe -2 | Enicrfe -3 |
|---|---|---|
| Vuam txoj haujlwm | Txhua txoj haujlwm | Txhua txoj haujlwm |
| Tam sim no hom | AC / DC + | AC / DC + |
| Interpass temp. | Tsawg dua los yog sib npaug nrog 250 degree (482 degree f) | Tsawg dua los yog sib npaug rau 200 degree (392 degree f) |
| Tom qab weld tshav kub | Yeem hais txog kev ntxhov siab nyem | Feem ntau yuav tsum muaj rau cov pob qij txha tseem ceeb |
Enicrfe -3} '}'} '}'} '}'} '}'} '}' -2}}} Yog zam txim ntau rau cov hom phiaj dav dav.
Tus nqi thiab muaj
Enicrfe -2: Ntau dav muaj thiab kev lag luam rau cov ntawv thov txheem.
Enicrfe -3: Tus nqi siab dua vim yog molybdenum cov ntsiab lus tab sis ua kom luag rau cov chaw hnyav.
Kev Lag Luam Tiam
Kev Hloov Cua: Enicrfe -3 nce traction hauv hydrogen electrolyzers thiab carbon ca carbon ca carbon monoxide.
Roj & Roj: Enicrfe -3} ominates qaub roj thiab offshore tej yaam num yog nace mr0175 ua raws.
Ua qhov hauv plawv: Ob qho qib tau siv, tab sis enicrfe -3 yog nyiam rau lub sij hawm ntev hluav taws xob tiv thaiv.
Xaus: Xaiv Cov Cai Sab Laj
Enicrfe -2: Qhov zoo tagnrho rau cov kev siv kub hnyav, tsis muaj chloride qhov twg tus nqi thiab duction yog qhov tseem ceeb.
Enicrfe -3: Mus rau kev xaiv rau chloride-nplua nuj, muaj kev ntxhov siab ntau, lossis qhov chaw siab-ntsuas qhov xav tau superfosion.
Nkag siab cov kev sib txawv no ua kom muaj kev ua tau zoo, kev nyab xeeb, thiab cov nqi-efficiency nyob rau hauv cov phiaj xwm vuam vuam. Seb puas kam kho cov tshuaj lom neeg estre lossis tsim cov roj av tshuab, xaiv qhov tseeb enicrfe variant yog qhov tseem ceeb rau kev ua haujlwm zoo.
