1. Dab tsi yog qhov kev txhais tau metallurgical tus yam ntxwv ntawm inconel 693 uas ua rau nws muaj kev sib xyaw, thiab nws muaj pes tsawg leeg muaj pes tsawg leeg sau ua ntej?
Inconel 693 (tsis yog N06693) yog npib tsib xee {} chromium alirocented enconoy- kub creposion: Hlau Daus. Nws qhov tsis zoo ntawm stuffs los ntawm kev txhob txwm siab cov ntsiab lus zoo heev, uas yog tus yuam sij rau nws cov kev ua tsis tau zoo.
Composition: Thaum nws muaj cov ntsiab lus tsib xee siab (~ 58-63%) rau cov ntsiab lus pheej yig, nws cov ntsiab lus chromium tseem ceeb (~ siab heev aluminium cov ntsiab lus (~). Qhov no yog qhov tseem ceeb tshaj nyob rau hauv lwm tus neeg uas muaj Nickel alloys zoo li 600 lossis 601.
Lub tshuab ntawm cov hlau plua plav tsis kam: hlau hmoov av yog cov kev puas tsuaj ntawm cov carbon {}} Cov roj (800℃f {{6 degree. Nws tawg cia hlau rau hauv plua plav ntawm graphite, carbides, thiab hlau hais. Cov ntsiab lus siab hauv alloy 693 tso cai rau nws ua ib qho kev txuas ntxiv, thiab cov txheej txheem ruaj khov ntawm txhuas oxide (al₂o₃) ntawm nws qhov chaw thaum raug. Lub alumina nplai no yog zoo heev rau cov carbon ingress, ua yeeb yam raws li kev ua kom muaj kev tua tsiaj los ntawm cov tshuaj tiv thaiv carbon ntawm cov hlau txuas ntxiv.
Thawj daim ntawv thov: yog li ntawd, cov ntawv thov tseem ceeb thiab txhais tau rau Incurning thiab cov hlau- defling ib puag ncig. Nws yog cov khoom siv ntawm lub sijhawm kawg thaum lwm cov alloys tau ua tsis tiav. Nws siv yog yuav luag txhua tus tsav los ntawm qhov yuav tsum tau los tawm tsam qhov tshwj xeeb me ntsis txheej txheem.
2. Hauv kev lag luam tshwj xeeb thiab cov ntawv thov yog inconel 693 daim ntawv qhia txog cov khoom siv tsis tseem ceeb?
Inconel 693 daim ntawv yog cov khoom siv tshwj xeeb uas tsis suav nrog nws lub zog, tab sis rau nws lub zog, tab sis rau nws qhov zoo tshaj plaws rau ib puag ncig cov txheej txheem kev muaj zog tshaj plaws.
Syngas thiab Coalle Gashification: Tseem ceeb rau cov pa hluav taws xob tubing, thiab cov txheej txheem hluav taws xob muaj roj carbon monoxide (co) thiab hydrogen (h₂) ntawm kev ntsuas kub thiab ntsuas.
Petrochemical thiab kev ua tshuaj lom:
Ethylene ntau lawm: siv hauv Pyrolysis ua kom sov xws li xws li radiant Roort hangers, baffles, thiab cov hnab thiab cov cua uas cov huab cua yog cov carburizing zoo heev.
Reformer chav ua haujlwm: hauv hydrogen ntau lawm thiab ammonia nroj tsuag, nws yog siv rau kev hloov cov piping, pigtails, thiab thermowells nthuav tawm roj.
Kev lag luam tshav kub: ua haujlwm hauv fixtures, pob tawb, thiab cov tais rau carburizing, carbonitrivate, thiab nruab nrab warden hardening rawg. Nws detically extends sib xyaw lub neej piv rau cov qauv alloys, txo qis downtime rau hloov.
Cov khib nyiab tsis sib xws thiab cov calciners: siv hauv cov khoom siv nrog cov roj flue gases uas tuaj yeem dhau los ua tus carburizing nyob rau hauv qee yam.
Hauv cov ntawv thov no, Inconel 693 daim ntawv feem ntau yog siv raws li cov ntaub pua sab hauv cov hnab nyiaj, cov ntaub qhwv, thawv, thiab baffles. Nws qhov kev siv yog tus nqi - txuag cov kev ntsuas lub neej ntawm lub neej ua haujlwm, txawm tias nws cov khoom siv qib siab siab.
3. Dab tsi yog qhov tseem ceeb ntawm kev siv Inconel 693 ntawv piv rau lwm cov hlau- plua plav tiv thaiv alloy 601 lossis 600?
Cov kev xaiv ntawm cov khoom yog qhov sib npaug ntawm kev ua tau zoo, qhov tseeb, thiab tus nqi. Inconel 693 zaum ntawm qib siab rau kev ua tau zoo tab sis nrog cov lag luam tshwj xeeb- Offs.
Qhov zoo tshaj Alloy 600/601:
Superior hlau dhuav zog: Qhov no yog thawj qhov zoo. Nws qhov kev ua tau zoo hauv kev ua haujlwm carburizing loj yog xaj tau los ntawm 6000 lossis 601.
Cov oxidation zoo: Lub siab chromium thiab txhuas cov ntsiab lus muaj kev ua tau zoo rau oxidation, thiab lwm hom kev ntsuas kub, outperforming ntau lwm yam alloys.
Txwv thiab kev txiav txim siab:
Txo lub zog ntawm qhov kub: thaum muaj zog, nws lub zog siv thiab nkag siab {{{{{{{{{5} {cov kabmob muaj peev xwm.
Fabrication nyuaj: lub siab zoo cov ntsiab lus ua rau nws tus cwj pwm tsawg dua thiab cov nyom ntau dua li 600 lossis 625. Nws yuav tsum muaj cov tswv yim tshwj xeeb thiab kev txawj ntse.
Tus nqi: Nws yog tus hwm, cov khoom siv sib txuam nrog tus nqi kom phim. Nws tsuas yog hais txog qhov twg nws cov khoom tshwj xeeb yog tsim nyog kiag li tsim nyog los daws cov teeb meem corrosion tseem ceeb heev.
Hauv cov ntsiab lus, Alloy 693 tsis yog General- lub hom phiaj hloov; Nws yog ib qho kev cob qhia tshwj xeeb rau cov teeb meem tshwj xeeb, kev loj heev. Ib qho yuav tsis xaiv nws rau qhov siab- lub zog thov, tab sis ib qhoyuav tsumXaiv nws thaum hlau duas tau rhuav tshem cov khoom ua los ntawm lwm cov khoom siv.
4. Dab tsi yog qhov tseem ceeb tshaj plaws kev coj ua rau vuam thiab cov hmoov av los ntawm inconel 693 daim ntawv?
Kev ua kom muaj kev sib tw nrog Inconel 693 yuav tsum tau ua raws cov txheej txheem tsim los kom tsis txhob tawg thiab ua kom tiav cov khoom ua haujlwm khaws cia nws corrosion tsis kam.
Kev xaiv vuam xaiv: Roj Tungsten Arc Vuam (GTaw / TIG) yog cov txheej txheem pom zoo. Nws muaj cov qauv tswj kom meej dua cov tswv yim tshav kub thiab kev tiv thaiv cov roj npog uas cov kev xav tau no.
Tus muab tub lim hlau: Siv cov khoom siv sib piv ntawm cov hlau (piv txwv li, ernictral-3 lossis ib qho tshwj xeeb 693-qib xaim) yog qhov tseem ceeb los tswj cov hlau corrosion. Siv tus tub lim tsis yog tuaj yeem tsim cov galvanic cell los yog ib cheeb tsam ua rau muaj kev tawm tsam sai.
Cov kev coj ua tseem ceeb:
Toogicent tu huv: Txhua tus kab mob tsis huv Ib tug carbon qhia tuaj yeem cuam tshuam cov weld.
Kev thaiv cov roj: Siv siab - purity argon tiv thaiv roj. Kev siv ntawm kev sib cav ntxiv roj rau hauv paus ntawm lub hauv paus ntawm Weld kuj tau pom zoo kom tiv thaiv oxidation (qab zib) ntawm Weld cag.
Cov tswv yim tshav kub tswj: Siv qis qis rau kev siv hluav taws xob cua sov. Cov cua sov ntau dhau yuav ua rau muaj kev loj hlob ntau hauv tshav kub -} be} cuam tshuam cheeb tsam (bang), txo kev txhim kho thiab corrosion tsis kam. Nruab nrab qhov kub yuav tsum ua tib zoo tswj hwm.
Tus qauv sib koom: Siv cov grooves kom ntseeg tau tias thiab tsis muaj kev nkag siab thiab tsis txhob muaj kev cuam tshuam nrog, uas tuaj yeem ua cov chaw pib ua kom xeb.
Tshaj tawm - Weld Kev Kho Cua Sov (PWTT) Txawm li cas los xij, qhov no feem ntau improvical rau cov teb loj fab.
5.
Thaum hlau plua plav tsis kam yog nws cov khoom lag luam chij, inconel 693 muaj cov kev tawm tsam zoo uas ua rau nws muaj kev sib txuam nrog cov khoom sib xyaw.
Oxidation tsis kam: kev sib xyaw ua ke ntawm chromium thiab txhuas muab cov kev ntsuas tshwj xeeb rau kev sib sau thiab oxidation nyob rau hauv huab cua ntawm 1200℃(2200℃(2200℃(2200℃(2200℃f). Lub alumina nplai uas cov ntaub ntawv yog ruaj khov thiab adherent.
Sulfidation Kuj: Nws ua tau zoo heev nyob rau hauv ib puag ncig muaj cov sulphur tebchaw, uas muaj ntau nyob rau hauv petrochemical thiab cov txheej txheem ua haujlwm. Nws yog tiv taus ntau dua li ntau cov hlau uas tsis muaj pa thiab qee cov nickel alloys.
Nitridation Kuj: Cov txheej av ruaj khov ntxiv rau Nitriding Nitriding atmospheres, uas tuaj yeem ua rau embrittlement hauv lwm cov ntaub ntawv.
Cyclic oxidation tsis kam: cov nplai oxide muaj cov khoom zoo tshaj plaws thiab kev tawm tsam kom tawg (ya tawm) thaum lub caij cycling. Qhov no yog qhov tseem ceeb hauv cov ntawv thov nyiam tshav kub kho cov cua sov kho qhov twg cov khoom siv tau ua kom sov dua thiab txias.
Qhov kev sib txuam ntawm kev tiv thaiv txhais tau tias tsis muaj tseeb 693 daim ntawv yog tsis yog ib qho -}} Nws yog feem ntau kev daws teeb meem rau cov txheej txheem uas cov huab cua yog qhov nyuaj thiab muaj cov muaj peev xwm, oxidizing cov laus ib txhij. Nws muab lub zog ua kom ruaj khov, ntev {{{{{}}} Lasting barrier tawm tsam ib tug neeg siab- kub corrosive kev hem.
