Cov Khoom Taw Qhia Zoo Tshaj Plaws Rau INCONEL Alloy 625

Nws tsis yog feem ntau hais tias lub siab ua haujlwm siab nyob rau hauv cov kev siv tau zoo thoob plaws ntau qhov kev siv ntau qhov chaw rau ntau xyoo lawm, tsis tau txais cov ntaub ntawv tshiab hloov dua tshiab. Txawm li cas los xij, INCONEL 625bucks cov qauv no thiab tseem yog cov qauv kev tsim kho cov qauv uas cov kws paub tau siv sijhawm ntau dua.

INCONEL 625 tau tsim nyob rau thaum xyoo 1960 thiab ua nrov ua tsaug rau nws cov versatility, ua rau nws siv tau rau ntau daim ntawv thov. Ntau dua li ib nrab xyoo tom qab, nws tseem tau saib zoo li cov engineers nrhiav txoj hau kev tshiab los ntiav cov khoom no tsis tseem ceeb. Cov kev siv niaj hnub no rau cov ntawv qhia nickel alloy mus dhau nws lub hom phiaj qub hauv qhov tseem ceeb tshaj plaws cov raj xa dej.

Thoob plaws hauv nws lub neej, cov txheej txheem kev ua lag luam tau qhia txog kev ua haujlwm uas ua rau cov kws ua haujlwm kom nkag siab zoo dua lub peev xwm ntawm cov hlau no. Piv txwv li, kev hloov me ntsis rau nws cov lus sib xyaw, nrog rau kev txhim kho milling xyaum, tau nce lub neej qaug zog ntawm daim ntawv nyias. Nws tseem yog qhov kev xaiv zoo tshaj plaws rau lub vuam vuam thiab tuaj yeem haum qhov kev nrawm los ntawm lwm cov kev coj ua, ua 625 muab tub lim hlau tshwj xeeb tshaj yog haum rau cov hlau tsis sib luag.

Muaj pes tsawg leeg zoo nkauj

INCONEL alloy 625 kev tsim tshwj xeeb muab nws cov khoom xav tau. Nws yog qib siab-nickel alloy, nrog tsawg kawg ntawm 58% ntawm tag nrho cov khoom sib xyaw. Nws kuj tseem muaj ntau theem ntawm chromium (20-23%). Kev sib xyaw zoo tshaj ntawm cov xim nickel thiab chromium imparts ib qib txawv tshaj plaws ntawm kev txhim kho corrosion, tshwj xeeb yog rau oxidising tshuaj.

Cov menyuam kawm ntawv ntawm molybdenum (8-10%) muab lub zog nws lub zog loj kawg, nrog rau kev ua haujlwm nrog cov ntsiab lus nickel los muab kev tiv thaiv nyob rau hauv cov chaw tsis muaj oxidising. Lub molybdenum tseem yog vim li cas vim li cas cov hlau no tiv taus pitting thiab kev cov nyom tiv thaiv.

Thaum niobium yog qhov feem pua ​​me dua ntawm qhov muaj pes tsawg leeg, nws nyob ntawd kom ruaj khov cov hlau tiv thaiv kev hnov ​​mob thaum vuam, uas tiv thaiv kev tawg tom ntej. Ua ke, txhua qhov hauv qhov kev ua haujlwm siab no yuav pab tsim cov khoom uas muaj zog, tiv taus thiab ua haujlwm tau zoo, daws tau ntau yam teeb meem niaj hnub no-tsim qauv.

Cov khoom tseem ceeb

Muaj ntau lub laj thawj ntawm vim li cas cov hlau nplaum no thiaj li nrov. Tshwj xeeb, nws cov lus sib xyaw ua kom nws muaj peev xwm tiv thaiv ntau yam ntawm kev xeb ib puag ncig. Nyob rau hauv cov xwm txheej tsis hnyav, piv txwv li nyob ntawm cov dej tsis qab ntsev lossis dej hiav txwv, cov ntsev nruab nrab thiab kev hais tawm alkaline, nws yuav luag tsis muaj xeb.

Hauv kev tawm tsam ntau dua qhov kub thiab txias tsis muaj teeb meem, cov chromium hauv nws cov pleev ua rau muaj kev tiv thaiv zoo rau cov tshuaj tua hluav taws xob, thiab lub molybdenum muaj qhov tsis kam nrog cov chaw tsis muaj oxidising. Nws kuj tseem muaj peev xwm nrog kev tawm tsam siab siab-ntsuas huab ib puag ncig.

Npib tsib xee alloy muaj tseem muaj zog heev. Nws lub zog siab yog yug los ntawm kev sib xyaw ntawm molybdenum thiab qhov tsawg ntawm niobium. Ua ke cov ntsiab lus no cuam tshuam txog qhov tsis sib haum ntawm cov xaim atomic matrix, uas muaj zog tshwj xeeb tshaj yog muaj zog hauv qhov kev tiv thaiv uas tsis tas yuav tsum tau ntxiv dag zog los ntawm kev kho cua sov. Raws li xws li, cov alloy yog feem ntau muab rau hauv kev tiv thaiv mob kom muab qhov kev nyab xeeb zoo tshaj plaws thaum ob leeg tsim thiab hauv kev siv. Nws lub zog los hauv cov qauv ua kom muaj zog corrosion-qaug zog, siab tensile lub zog thiab tiv taus chloride-ion kev nyuaj siab-corrosion tawg.

Siv rau hauv cov roj refining

Ib qho ntawm nws cov ntawv thov tseem ceeb tau nyob hauv kev txhim kho roj, qhov twg ntau dhau ntawm kev xeb tuaj yeem yog qhov teeb meem loj thoob plaws hauv cov txheej txheem. INCONEL 625 cov yeeb nkab tsis sib haum tuaj yeem pab cuam los ntawm kev tiv thaiv naphthenic acid corrosion, txo polythionic acid (PTA) lossis chloride kev nyuaj siab-xeb, thiab txhim kho kev ua kom cov tshuaj tiv thaiv oxidising. Nws kuj txo cov kev sov siab sulphidation.

Naphthenic acid xeb yog qhov teeb meem uas ntsib los ntawm kev kho kom zoo dua qub cov yees ua haujlwm ntawm qhov chaw siab ntawm 220-400 ° C, tshwj xeeb tshaj yog nyob rau hauv cov kab xa mus, nozzles thiab rov qab khoov. INCONEL alloy 625 tau raug pov thawj los muab kev ua haujlwm zoo, ntev mus ntev rau cov hom kev xeb hauv kev lag luam thiab feem ntau yog siv rau kev tshem tawm ntauwd cov khoom. Nws kuj tseem siv tau nyob rau hauv overhead condensers ntawm cov roj ua kom zoo nyob rau qhov twg xaiv cov khoom yog nyob ntawm ntau qhov sib txawv, suav nrog qhov chaw ntawm cov dej txias, qhov nyiaj ntawm chloride, PH tswj, dej nrawm thiab lwm yam.

Hauv cov chav dej hydrotreating, qhov twg hydrogen siv los tshem cov leej faj thiab nitrogen los ntawm cov khoom siv roj thiab roj sib txawv, cov khoom siv yuav tsum muaj peev xwm tiv thaiv kev cuam tshuam ntawm hydrogen sulphide (high-temperature corrosion), thiab ammonia thiab ammonium sulphide (qis dua qhov kub thiab xeb thiab xeb -yawg tshuaj tiv thaiv).

Zoo sib xws, cov khoom siv hydrocracking, uas txuas nrog desulphurisation nrog kev tawg, tuaj yeem raug kev txom nyem los ntawm cov teeb meem corrosion zoo sib xws. Thaum muaj lwm cov alloys uas tuaj yeem siv thiab muaj kev cuam tshuam zoo rau hydrogen sulphide nyob rau hauv kev ua haujlwm kub, lawv txhua tus tsis muab cov txiaj ntsig ntxiv ntawm kev txo PTA kev nyuaj siab corrosion tawg thiab intergranular nres uas INCONEL alloy 625 ua.

Lwm yam kev siv

Qhov no yeej tsis muaj qhov txwv ntawm INCONEL alloy 625 txoj kev siv. Vim tias cov khoom siv los tiv thaiv qhov ua tau rau cov dej muaj peev xwm thiab ntsev, nws yog feem ntau siv rau hauv cov raj xa dej nrog lub hom phiaj los khaws cov roj qaub. Cov raj xa dej rau lawv tus kheej tuaj yeem tsim ua kev siv INCONEL alloy 625, lossis rau cov kev xaiv muaj txiaj ntsig ntau dua, ua rau cov khoom me.

Cov alloy tuaj yeem muab siv rau hauv cov khoom siv cua kub sib tshooj hauv av, chaw tsim hluav taws xob thiab chaw ua haujlwm sab nrauv. Nws kuj tseem siv tau rau lwm qhov dej hiav txwv siv xws li mooring cables, kiv cua tshuab rau cov nkoj, cov roj ntsha propulsion, cov khoom hloov pauv thiab cov khoom siv rau cov nkoj xa mus, thiab cov pa hluav taws xob rau cov nkoj siv hluav taws xob. Nws kuj tseem muaj peev xwm siv tau rau hauv cov khoom siv rau cov khoom siv tswj hauv qab, kab hluav taws xob txuas hluav taws xob thiab cov khoom siv rau cov cuab yeej siv dej hiav txwv.

Tawm hauv hiav txwv thiab hauv huab cua, INCONEL alloy 625 plays ib qho loj hauv qhov kev lag luam aerospace. Ua tsaug rau nws lub siab tensile, nkag thiab lub zog loj, thiab zoo weldability, nws tuaj yeem siv rau cov khoom xws li tshuab ua dav hlau, tshuab tso pa tawm, tshuab lub zog thawb rov qab thiab ntau lwm cov txheej txheem kev qhia. Nws tau txais txiaj ntsig zoo rau cov roj thiab hydraulic kab tubing, thiab cov pa hluav taws kub tubing, qhov twg kub tuaj yeem siv foob pob hluav taws.

INCONEL alloy 625 kuj tseem siv nyob rau hauv cov txheej txheem tshuaj, qhov twg ob qhov xov xwm corrosive thiab qhov kub thiab txias siab heev nyob rau hauv qhov chaw muaj kev kub ntxhov. Nws lub peev xwm tiv taus kev kub siab ua rau nws ua khoom siv ntawm kev xaiv hauv qhov chaw ua si no. Nws tuaj yeem ua kom zoo dua thiab ua kom yooj yim rau ntau yam, thiab nws tuaj yeem siv nrog lwm cov ntaub ntawv los tsim cov hlab nyias-phab ntsa uas pab kom txuag tau qhov hnyav tag nrho yam tsis muaj kev kub hloov. Nws kuj tseem siv tau rau npuas npog, tubing, cov hlab cov tshuaj tiv thaiv, cov kab hluav taws xob, cov cua sov sib hloov, hloov cov kav dej thiab cov li qub hauv cov chaw ua tshuaj lom neeg.

Nws tseem muaj qee qhov kev siv nuclear, tshwj xeeb rau reactor core thiab tswj cov pas nrig sib xyaw hauv cov dej nuclear reactors. Hauv cov xwm txheej no, kev ncaj ncees ntawm cov ntaub ntawv yog qhov tseem ceeb tshaj rau kev tiv thaiv kev ua haujlwm tsis tiav, yog li INCONEL alloy txhua qhov muaj peev xwm tuaj yeem ua si. Nws lub peev xwm los tiv thaiv pitting hauv qhov kub thiab txias (260-316 ° C) ua rau nws yog tus neeg xaiv zoo meej. Nws tseem tab tom txiav txim siab siv rau hauv cov tswv yim thev naus laus zis ntau ntxiv - ua pov thawj tias cov khoom siv tseem muaj peev xwm thov tau uas tseem tsis tau npaj tsis tau siv.

INCONEL alloy 625 tau nyob rau hauv cov kev pabcuam thiab kev txhim kho rau xyoo lawm, txav nrog lub sijhawm thiab muab kev daws teebmeem rau qhov tseem niaj hnub ntawm cov teeb meem. Nws cov chaw yeej qhia tias tsis muaj kos npe ntawm kev tso tseg tseem tsis tau.

Tiv tauj peb rau hnub no kom paub yuav ua li cas INCONEL alloy 625 tuaj yeem siv rau hauv koj qhov project tom ntej, los ntawm tham nrog ib ntawm peb cov pab pawg muag khoom uas tau dhau los.