Inconel 601 vs 600: Aluminium Cov ntsiab lus thiab Oxidation Resistance ntawm Kub Tshaj 1000 degree

Yog tias koj tab tom teev cov nickel alloy rau lub cub tawg, lub raj xa hluav taws xob, lossis thermal - cov txheej txheem ua haujlwm uas kub tshaj 1000 degree, koj yuav luag tau txo koj cov npe luv rauInconel 600 thiab Inconel 601. Lawv zoo li cov nus muag ntawm daim ntawv - ob leeg yog npib tsib xee-chromium- hlau khoom- kev daws teeb meem, ob qho tib si weld zoo, thiab ob qho tib si yog them los ntawm tib yam ASTM phaj specification. Txawm li cas los xij, siab dua 1000 degree, lawv tus cwj pwm txawv txav, thiab xaiv qhov tsis ncaj ncees lawm tuaj yeem txiav lub neej ntawm ntau tshaj ib nrab.

Ib qho tseem ceeb tshaj qhov sib txawv yogaluminium. Inconel 601 txhob txwm muaj1.0-1.7% txhuas; Inconel 600 muaj qhov tseem ceeb tsis muaj dab tsi (tsuas yog qhov seem seem, feem ntau qis dua 0.35%). Tias ib qho kev txiav txim siab alloying hloov cov chemistry ntawm kev tiv thaiv oxide nplai, thiab cov nplai oxide yog qhov txiav txim siab seb koj cov khoom puas muaj sia nyob 1100 degree, 1200 degree, lossis tshaj.

Kab lus no piav qhia, hauv cov lus yooj yim, raws nraim vim li cas txhuas tseem ceeb heev ntawm qhov kub thiab txias. Koj yuav kawm:

1. Kev sib piv tshuaj thiab lub cev tag nrho ntawm Inconel 600 (UNS N06600) thiab Inconel 601 (UNS N06601)
2. Lub metallurgy ntawm yog vim li cas 601's txhuas- hloov oxide nplai tiv thaiv kom ncav cuag 1250℃thaum 600's chromia nplai tawm tsam saum 1000 degree
3. Yuav ua li cas cyclic oxidation, carburization, thiab siab - kub lub zog txawv ntawm ob
4. Thaum Inconel 600 tseem yog qhov kev xaiv ntse dua (thiab pheej yig dua).
5. A 16-cov lus nug FAQ, lus piav qhia, cov qauv siv cov qauv, thiab npaj tau- rau- muab tshuaj txhuam JSON-LD rau koj CMS

Dab tsi Alloy yeej tshaj 1000 degree: Inconel 601 lossis Inconel 600?

Inconel 601 yog tus yeej meej tshaj 1000 degree.Its 1.0–1.7% aluminum addition forms a dense, tightly adherent oxide scale that keeps protecting the metal through repeated heating and cooling cycles up to approximately1250℃(2280℃F). Inconel 600, tsis muaj kev txiav txim siab aluminium, feem ntau yog ntsuas rau kev txhim khu kev qha oxidation tsis kam tsuas yog txog li ntawm1093℃(2000℃F), thiab nws qhov ntsuas tiv thaiv loj hlob sai dua thiab nthuav dav ntxiv hauv kev pabcuam cyclic ze li qhov txwv.

Vim li cas qhov me me ntawm txhuas - NW nyuam qhuav 1.4% ntawm cov alloy los ntawm qhov hnyav - ua qhov sib txawv loj? Cov lus teb yog nyob rau hauv yuav ua li cas ob lub alloys tsim lawv tiv thaiv "cov cuab yeej" ntawm qhov kub thiab txias:

• Inconel 600tso siab rau nws 14–17% chromium los tsim ib chromium-oxide (Cr₂O₃, lossis "chromia") nplai. Chromia yog qhov cuam tshuam zoo heev txog li 1000 degree, tab sis nws loj hlob nrog lub sijhawm, ua rau cov neeg kho tshuab tsis ruaj khov nyob rau hauv thermal cycling, thiab siab dua li ntawm 1000℃tuaj yeem pib maj mam evaporate li volatile chromium oxide hom.
• Inconel 601ua ke nrog cov ntsiab lus chromium ntau dua (21-25%) nrog cov txhuas ntxiv. The aluminum promotes a thinner, slower-growing scale with a dense inner aluminum-oxide (Al₂O₃) layer that anchors the scale to the metal. Qhov tshwm sim yog ib qho teeb meem uas tiv thaiv kev sib kis txawm tias qhov chaw yog cycled los ntawm 1200℃mus rau chav sov dua.

Ib qho piv txwv zoo: Inconel 600's scale coj zoo li cov xim uas nws thiaj li tawg thiab flakes thaum phab ntsa nthuav thiab cog lus; Inconel 601's scale behaves zoo li cov ceramic txheej sib txuas rau phab ntsa nws tus kheej. Ob leeg "tiv thaiv" - tab sis tsuas yog ib qho muaj sia nyob ntau xyoo ntawm kev caij tsheb kauj vab.

Inconel 600 thiab Inconel 601 yog dab tsi?

Inconel 600 yog siab -nickel (Ntau dua lossis sib npaug li 72%), chromium- hlau alloy ua rau corrosion tsis kam thiab tiv taus cua sov txog li 1093 degree, thaum Inconel 601 yog nws cov txhuas- txhim kho cov xeeb leej xeeb ntxwv ua tshwj xeeb rau huab cua {{7}.Ob qho tib si yog cov khoom siv -solution alloys, txhais tau hais tias lawv muaj zog los ntawm cov ntsiab lus yaj hauv cov nickel matrix es tsis yog los ntawm kev kho cua sov - yog li lawv cov khoom ruaj khov thiab kwv yees tau nyob rau lub neej ua haujlwm ntev.

Inconel 600 (UNS N06600) Lub cev muaj zogyog npib tsib xee-chromium- hlau alloy uas muaj tsawg kawg yog 72% nickel, 14-17% chromium, thiab 6-10% hlau. Nws ua ke muaj zog tiv thaiv chloride kev ntxhov siab- corrosion cracking thiab caustic alkalis nrog oxidation tsis kam mus txog 1093 degree, ua rau nws ntev - sawv xaiv rau cov tshuaj cog thiab cov khoom siv rauv taws.

Inconel 601 (UNS N06601)yog nickel{0}}chromium- hlau alloy nrog ntxiv ntawm txhuas (1.0–1.7%) thiab siab chromium (21–25%). Nws yog tsim tshwj xeeb rau kev ua haujlwm zoo rau oxidation thiab nplai spalling ntawm qhov kub txog li 1250 degree, ntxiv rau qhov zoo carburization tsis kam nyob rau hauv tshav kub- kho cua sov.

Tsev neeg kev sib raug zoo tseem ceeb: 601 tau piav qhia dav dav hauv cov ntaub ntawv xa khoom raws li kev ua kom zoo, thermally hardened version ntawm 600 - tib lub tswv yim metallurgical, hloov kho rau lub luag haujlwm kub.

Cov ntsiab lus Aluminium Qhov txawv ntawm Inconel 601 thiab Inconel 600 li cas?

Inconel 601 muaj 1.0-1.7% aluminium (nominal ~ 1.4%); Inconel 600 tsis muaj qhov tshwj xeeb ntawm txhuas ntawm tag nrho - tsuas yog cov cim tsis tau teev tseg feem ntau hauv qab 0.35%.Aluminium yog qhov sib txawv ntawm qhov sib txawv ntawm ob lub alloys, thiab nws ua haujlwm ua ke nrog qhov sib txawv thib ob - 601's siab dua chromium - los hloov cov oxide - nplai chemistry tag nrho.

Cov lus hauv qab no sib piv cov lus teev tseg (raws li ASTM B168 phaj specification thiab cov ntaub ntawv tsim tawm dav dav):

Peb lub cev - cov khoom sib txawv ua raws ncaj qha los ntawm cov chemistry no:

Daim ntawv ceeb toom tus qauv: 601 pauv qee cov npib tsib xee rau chromium thiab txhuas. Qhov kev lag luam ntawd raug nqi me ntsis ntawm 600 qhov tsis sib haum xeeb caustic-hlau tsis kam (sib tham tom qab) hauv kev sib pauv rau qhov zoo dua siab dua - ntsuas kub ntsuas tus cwj pwm. Nws yog kev sib pauv engineering, tsis yog qhov tsis xws luag.

Vim li cas Aluminium Txhim Kho Oxidation Resistance Tshaj 1000 degree?

Aluminium ua rau nyias, ntom, qeeb- loj hlob txhuas- oxide (Al₂O₃) txheej ntawm cov hlau- nplai interface uas ua zoo li rivets tuav cov nplai tiv thaiv nyob rau hauv qhov chaw, uas suppresses ob qho tib si scale thickening thiab spalling ntawm qhov kub thiab txias uas ib tug dawb chromia scale yuav tsis ruaj khov.Qhov no yog qhov tseem ceeb metallurgical vim li cas Inconel 601 outperforms 600 saum 1000 degree.

Ntawm no yog lub mechanism, ib kauj ruam yog kauj ruam:

Ob lub alloys pib tib txoj kev.Thaum rhuab hauv huab cua, chromium nyob rau hauv lub alloy reacts nrog oxygen los tsim ib tug scale ntawm chromium oxide (Cr₂O₃, chromia). Qhov no nyias nyias zaj duab xis yog cov alloy lub armor: oxygen yuav tsum diffuse los ntawm nws mus tua cov hlau hauv qab.

Hauv Inconel 600, qhov ntsuas yog chromia nkaus xwb.Chromia tiv thaiv zoo - tab sis nws muaj ob qhov tsis muaj zog thaum kub nce mus txog 1000℃. Ua ntej, cov pa oxygen thiab chromium atoms nthuav tawm los ntawm nws, yog li cov nplai loj hlob zuj zus ntxiv, thiab cov nplai tuab dua khaws cov thermal ntau dua - zog. Qhov thib ob, chromia muaj qhov sib txawv thermal nthuav tawm los ntawm cov nickel alloy hauv qab, yog li txhua qhov cua sov- nce / txias- down cycle strains cov nyiaj ntawm cov hlau thiab nplai.

Nyob rau hauv Inconel 601, txhuas hloov cov architecture.Lub 1.0-1.7% txhuas nyiam oxidizes ntawm lub hauv paus ntawm lub teev, tsim ib tug nruam puab txheej ntawm Al₂O₃. Aluminium oxide yog thermodynamically ruaj khov dua li chromia, loj hlob qeeb qeeb, thiab yog qhov zoo tshaj plaws oxygen barrier. Nws kuj tseem tuav cov chromia overlying - nplua nuj nplai rau cov hlau zoo li txheej ntawm cov thauj tog rau nkoj.

Qhov tshwm sim: ib txheej nyias nyias uas nyob txuas.Vim tias Al₂O₃ txheej chokes cov pa oxygen, tag nrho cov nplai loj hlob qeeb dua. Vim nws yog thinner thiab zoo dua anchored, nws muaj sia nyob thermal cycling tsis flaking tawm. Txhua lub voj voog, qhov ntsuas 600 yuav tsum rov ua dua - noj cov chromium tshiab thiab hlau txhua lub sijhawm - thaum 601 qhov ntsuas feem ntau nyob twj ywm.

Lub sij hawm technical rau scale flaking yogspalling. Ib qho spalled scale exposes liab qab hlau mus rau tag nrho lub cub tawg kub, thiab oxidation restarts ntawm xoom. Rov qab spalling yog qhov feem ntau yog vim li cas 1000℃+ cov khoom siv hluav taws xob ua los ntawm marginal alloys tsis ntxov.

Dab tsi tshwm sim rau Inconel 600's Oxide Scale Saum 1000 degree?

Tshaj li kwv yees li 1000 degree, Inconel 600's chromia scale ntsib ob qho kev hem thawj nrawm dua - kev loj hlob sai (thicker, ntau tawg-nruj nplai) thiab nce chromium poob - ob qho tib si uas nyias nyias cov kev tiv thaiv thiab nce hlau- poob 1.Lub alloy tsis dheev poob ntawm 1001 degree; es, nws degradation tus nqi accelerates thiab nws cov npoo ntawm kev nyab xeeb shrinks.

Peb tsis ua hauj lwm tsav tsheb dominate:

Disffusion sai dua.Oxidation yog diffusion- tswj: rau txhua qhov ntxiv 100 degree, atom txav mus los ntawm qhov ntsuas tau nce ntau. Lub chromia nplai ntawm 600 yog li ntawd thickens ntsuas sai ntawm 1100℃dua li ntawm 1000 degree.

Spallation nyob rau hauv cycling.Vim hais tias chromia sib cog lus sib txawv ntawm cov hauv qab alloy ntawm qhov txias, qhov kev ntxhov siab ntau ntxiv nws thiaj li tawg thiab buckles cov nplai. Nyob rau hauv batch furnaces, kilns, thiab txhua yam khoom uas heats thiab txias txhua hnub, qhov no yog lub killer mechanism.

Kev ntsuas volatilization.Thaum kub kub thiab ceev ceev- txav los yog cov pa nkev, Cr₂O₃ tuaj yeem oxidized ntxiv rau cov kab mob chromium tsis hloov pauv (CrO₃, lossis hom hydrated hauv cov roj ntub), cov lus evaporating qhov thaiv kev tiv thaiv. High -kub, siab - cov pa roj pa tawm yog qhov phem tshaj plaws.

Qhov no txhais li cas hauv kev xyaum? Tshaj tawm cov ntaub ntawv tsim tawm rau cyclic oxidation (piv txwv li, 50-teev lub voj voog ntawm 1150℃tom qab cua txias) qhia Inconel 601 tuav qhov kwv yees li qhov ruaj khov nrog cov hlau tsis tshua muaj hlau poob, thaum cov alloys cia siab rau cov chromia cov nplais plam cov khoom siv tom qab lub voj voog los ntawm kev loj hlob thiab kev loj hlob. Inconel 600 tseem yog ib qho khoom siv tau zoo - tab sis nws qhov kev nplij siab xaus nyob ze 1093 degree, raws nraim qhov 601's pib nws txoj haujlwm muaj zog tshaj plaws.

Dab tsi Alloy tuav Thermal Cycling zoo dua?

Inconel 601 yog qhov zoo tshaj plaws nyob rau hauv thermal cycling - nws cov txhuas -anchored scale yog tshwj xeeb engineered kom ciaj sia rov mus ncig ua si mus rau 1200℃thiab tshaj, uas yog vim li cas nws yog tus txheej txheem alloy rau batch furnace muffles, radiant raj, thiab tshav kub- kho fixtures.Inconel 600 zam kev caij tsheb kauj vab ntawm qhov kub nruab nrab tab sis qhia tau tias qhov kev poob qis hauv qhov hnyav heev - kub lub luag haujlwm.

Vim li cas kev caij tsheb kauj vab yog qhov kev sim hnyav tshaj plaws:

Txhua lub voj voog thermal yog ib qho kev sim ntawm cov hlau - nplai daim ntawv cog lus. Tshav kub rau 1150 degree, thiab ob qho tib si hlau thiab nplai nthuav dav. Txias nws mus rau chav sov, thiab ob qho tib si cog lus - los ntawm ntau npaum li cas.

Ib qho nplai uas "loj hlob nyob rau hauv qhov chaw" raws li lub nkig ceramic tsis tuaj yeem ncab. Qhov kev sib tw tsis sib haum yuav tsum mus rau qhov chaw: tawg, buckles, thiab thaum kawg tag nrho cov flakes ntawm nplai pop tawm.

Thaum qhov ntsuas tau ploj mus, cov hlau raug oxidizes aggressively thaum lub sij hawm cua sov tom ntej no, thiab cov txheej txheem rov qab nrog cov alloy siv nws tus kheej ib thooj.

Qhov no yog qhov tseeb hom kev ua tsis tiav Inconel 601 tau tsim los swb. Nws Al₂O₃ txheej sab hauv loj hlob qeeb heev thiab ua raws li cov nplai tseem tiv thaiv los ntawm ntau txhiab teev ntawm kev pabcuam cyclical. Cov neeg muag khoom tsis tu ncua hais txog cyclic- tiv thaiv oxidation txog li 1250℃raws li 601 tus txhais cov cuab yeej - cov cuab yeej uas ua rau nws yog cov khoom siv tsis zoo rau cov pa roj- cov raj hluav taws xob hluav taws xob, lub qhov cub retorts, thiab cua sov- kho cov pob tawb uas yuav tsum muaj sia nyob hmo ntuj kaw.

Txoj cai xaiv tswv yim:Yog tias koj cov khoom siv mus ncig (batch furnaces, intermittent kilns, start-stop incinerators) thiab khiav saum 1050 degree, qhia 601. Yog tias lub luag haujlwm txuas ntxiv thiab qis dua li ntawm 1000 degree, 600 tseem yog qhov pov thawj, kev xaiv nyiaj txiag.

Yuav Ua Li Cas Ob Lub Alloys Tiv Thaiv Carburization thiab Nitriding?

Inconel 601 muaj kev tiv thaiv zoo dua hauv cov pa roj carbon - nplua nuj (carburizing) huab cua ua tsaug rau nws cov txhuas- kabmob, qeeb- loj hlob oxide nplai, thaum ob lub alloys zoo sib xws hauv kev pabcuam nitriding - nrog qee cov ntaub ntawv tsim tawm txawm tias muab 600 me ntsis ntug hauv dissociated {{6} ib puag ncig.}Rau feem ntau cov cua sov- kho cua sov, ob qho tib si tau txais; rau cov txheej txheem carbonaceous roj ntawm qhov kub thiab txias, 601 muaj kev nyab xeeb dua.

Carburization - carbon diffusing rau hauv cov hlau ntawm qhov kub siab - embrittles Cheebtsam, txo cov melting ntau yam hauv zos, thiab tuaj yeem ua rau muaj kev puas tsuaj loj hauv cov hlau. Kev tiv thaiv yog tib yam oxide nplai uas tawm tsam oxidation: ib qho kev sib cog lus, kev sib txuas lus yog cov pa roj carbon barrier thiab. Vim tias 601's scale nyob twj ywm ntawm qhov kub thiab txias qhov twg 600's twb tau tawg thiab tawg, 601 khaws cov pa roj carbon monoxide ntev dua hauv cov cua kub carburizing - qhov laj thawj tseem ceeb uas nws dominates hauv tshav kub- kho fixtures, radiant raj raug rho tawm los ntawm endothermic gas, thiab petrochemical furnace nyob rau hauv.

Nitriding (nitrogen pickup, feem ntau nyob rau hauv dissociated -ammonia atmospheres) yog ib tug tshwj xeeb kev sib ntaus sib tua. Cov ntaub ntawv tsim tawm nco ntsoov tias 601 muaj qhov zoo nitriding tsis kam thiab tsuas yog ua tau zoo los ntawm 600 hauv qhov chaw tshwj xeeb no - ib qho ntawm ob peb thaj chaw uas cov hlau qub khaws cov ntug, vim nws cov ntsiab lus npib tsib xee siab heev (nitrogen muaj tsawg solubility hauv siab -nickel matrices).

Sib koom nyuaj txwv - sulfur:ob qho tib si alloys yuav tsum tau zam nyob rau hauv sulfur-cov kabmob uas muaj huab cua, tshwj xeeb tshaj yog txo cov kab mob sulfur xws li H₂S lossis SO₂ nyob rau hauv kev txo qis.

Nickel cov ntaub ntawv qis-kua npib tsib xee-sulfide eutectics uas rhuav tshem siab- kub alloys tsis hais txog cov ntsiab lus ntawm txhuas. Tshaj 600℃kev pab cuam hauv sulfur-laden gas, tsis yog 600 lossis 601 yog cov lus teb yog - saib es tsis txhob siab dua - hlau lossis cov alloys tshwj xeeb, thiab nug peb pab neeg ua haujlwm rau lwm txoj hauv kev.

Dab tsi Alloy khaws muaj zog ntau dua 1000 degree?

Inconel 601 khaws cov ntsiab lus siab dua lub zog siab dua 1000 degree, vim tias nws cov ntsiab lus chromium thiab aluminium ntau dua muab cov khoom siv zoo dua - kev daws teeb meem ntawm qhov kub thiab txias - kwv yees li 80-90 MPa lub zog tensile ntawm 1000℃, piv rau kwv yees li 50-60 MPa qhov kub ntawm 60.Ob lub alloys yog cov khoom sib zog- cov kev daws teeb meem (tsis yog nag lossis daus- tawv), yog li ob leeg cia siab rau chemistry es tsis yog kev kho cua sov rau lub zog kub.

Cov nqi luam tawm ib txwm (ib txwm lees paub tawm tsam daim ntawv pov thawj zeb tam sim no rau kev tsim qauv):

Rau tus neeg tsim khoom, ob qhov txiaj ntsig ntxiv raws li hauv qab no:

Sag kuj.Rauv muffles, radiant tubes, thiab conveyor fixtures nqa lawv tus kheej hnyav ntxiv load ntawm kub. Lub zog kub dua txhais tau tias 601 cov khoom sag tsawg dua thiab tuav qhov ruaj khov ntawm cov phiaj xwm ntev dua - cov ntsiab lus rov tshwm sim hauv cov ntawv thov xa khoom.

Design margin nyob rau sab saum toj ntawm qhov ntau yam.Nyob nruab nrab ntawm 1100℃thiab 1200 degree, 600's usable zog tau evaporated loj, thaum 601 tseem muaj peev xwm siv tau, yog tias me me, muaj peev xwm ua haujlwm. Rau qhov tseem ceeb ntawm cov khoom siv nyuaj siab tshaj li ~ 1100 degree, siab dua - qib tshwj xeeb muaj zog (xws li alloys 617 lossis 602CA) kuj tseem tsim nyog ntsuas.

Thaum twg Inconel 600 tseem yog qhov kev xaiv zoo dua?

Inconel 600 yog qhov kev xaiv zoo dua nyob rau hauv siab -kub caustic / alkaline kev pabcuam, chloride- bearing aqueous ib puag ncig, nitriding atmospheres, nuclear steam-generator lub luag haujlwm, thiab txhua daim ntawv thov hauv qab ~ 1000℃qhov twg nws cov dej zoo tshaj - corrosion kuj thiab qis dua tus nqi qis tshaj qhov kawg.Xaiv 601 nyob txhua qhov chaw "vim nws zoo dua" yog qhov tshwm sim thiab zam tsis dhau - qhov yuam kev tshwj xeeb.

Inconel 600 lub zog ntws ncaj qha los ntawm nws cov khoom xyaw:

Caustic alkalis.Qhov loj dua los yog sib npaug rau 72% nickel matrix muab 600 qhov ua tau zoo rau cov concentrated sodium thiab potassium hydroxide - keeb kwm nws daim ntawv thov kos npe rau hauv cov evaporators, chlor-alkali caustic tuav, thiab dej qab zib- cuam tshuam txog kev ua tshuaj lom neeg . 601, nrog rau roughly' 0.6% ntawm no, 60

Chloride stress -corrosion cracking (SCC).600 yog ze li ntawm kev tiv thaiv chloride SCC, uas rhuav tshem cov qauv austenitic stainless hlau. Qhov twg kub chloride condensates los yog brines tiv tauj cov hlau ntawm nruab nrab kub, 600 yog ib qho pov thawj tiv thaiv. Rau cov dej hiav txwv thiab dej hiav txwv- cov khoom nyob ib sab, saib peb cov ntaub ntawv marine engineering nplooj.

Nitriding cua.Raws li tau sau tseg saum toj no, 600 raug suav tias yog tus neeg ua yeeb yam zoo dua hauv kev sib cais ntawm ammonia - ib qho ntawm ob peb qhov chaw thermal uas nws ntaus 601.

Nuclear kev pabcuam.Ntau xyoo ntawm chav -generator thiab reactor- cov cuab yeej cuab tam.

Nqi.600 muaj chromium tsawg dua thiab tsis muaj cov ntsiab lus txhuas thiab feem ntau yog qhov kev yuav khoom lag luam ntau dua; qhia nws qhov twg nws qab nthab txaus ncaj qha txo qhov project nqi.

Xaiv shortcut:saum toj no 1050℃nrog kev caij tsheb kauj vab lossis 25+ xyoo tsim lub neej nyob rau hauv oxidizing gas → 601. Caustic, chloride -aqueous, nitriding, nuclear, los yog cov dej num tas mus li hauv qab no ~ 1000℃→ 600 txuag nyiaj tsis raug nplua.

Qhov twg yog Txhua Alloy tus qauv kev lag luam xaiv?

Inconel 601 muaj lub ntiaj teb kev ua haujlwm siab (-kub thermal- lub ntiaj teb ua haujlwm (rooj vais, cov raj radiant, muffles, retorts), thaum Inconel 600 muaj kev tiv thaiv corrosion- coj cov tshuaj, nuclear, thiab caustic daim ntaub ntawv - huv si ntawm thaj chaw uas ua raws ncaj qha los ntawm lawv cov chemistry.Cov lus hauv qab no qhia txog cov kev siv ib txwm siv.

Ob tug tiag tiag -vignettes ntiaj teb no ua rau kev faib ua vaj tse:

Lub tshav kub batch-kho lub khw khiav 1150℃carburizing cycles hloov chromia- nplai alloy fixtures nrog 601 pob tawb thiab muab ob npaug rau kev sib tw lub neej ntawm kev kho - qhov kev txiav txim siab yog ntsuas qhov tuav, tsis yog lub hauv paus- hlau chemistry.

Ib qho chlor-alkali nroj tsuag tau teev tseg 600 (tsis yog 601) rau cov kev pabcuam kub kub: ntawm no ntxiv 12 cov ntsiab lus ntawm cov ntsiab lus nickel khwv tau lawv khaws cia, thiab 1250℃oxidation qab nthab ntawm 601 tsuas yog tsis cuam tshuam.

Rau cov khoom siv tshuaj lom neeg -cov khoom siv- qib kev taw qhia cov khoom siv nyob rau hauv cov kua qaub thiab alkalis, peb cov khoom siv tshuaj siv nplooj ntawv qhia cov alloys ntxiv rau cov xov xwm (saib Internal Resources rau qhov txuas).

Cov txheej txheem twg thiab cov kev qhia tshwj xeeb npog Inconel 600 thiab 601?

Ob lub alloys poob rau hauv tib ASTM cov khoom tsev tsev neeg - tshwj xeeb tshaj yog ASTM B168 rau phaj, ntawv, thiab sawb - yog li kev hloov ntawm lawv tsis tshua hloov koj lub ntsiab lus tshwj xeeb, tsuas yog UNS tus lej.Hauv qab no yog cov npe tsim cov fabricators thiab cov neeg soj ntsuam ua haujlwm nrog.

Cov txheej txheem sau ntawv tsim nyog paub thaum tshawb xyuas cov alloy hauv ib qhov project:

Tib spec, sib txawv alloy.Vim hais tias ob qho tib si tshwm sim hauv B168, daim ntawv pov thawj zeb yog cov ntaub ntawv pov thawj - ib txwm txheeb xyuas UNS tus lej, cov khoom siv hluav taws xob kub, thiab cov txiaj ntsig kev ntsuas tshuab tawm tsam qhov kev yuav khoom rau txhua qhov cua sov.

Kev txiav txim siab ASME code.Siab- cov xwm txheej txaus siab ntawm lub nkoj sib txawv los ntawm cov hlau; lees paub qhov tam sim no ASME Tshooj VIII kev lees txais (nrog rau cov xwm txheej cai) rau 601 hauv siab - ciam teb lub luag haujlwm ua ntej tsim khov.

Cov lus qhia txog kev yuav khoom.Txiav txim rau UNS cov lej, tsis yog cov npe lag luam. "Alloy 600" thiab "Alloy 601" yog cov qauv siv dav siv thoob plaws cov neeg tsim khoom; Cov npe lag luam (Inconel® yog lub cim lag luam ntawm Cov Hlau Tshwj Xeeb) qhia ib qho - rau - ib qho rau UNS cov lej saum toj no.

Vuam thiab Fabrication sib piv li cas?

Ob lub alloys txuas tau yooj yim los ntawm cov txheej txheem sib xws (GTAW/TIG, GMAW/MIG, SMAW) uas tsis muaj preheat lossis post-weld kev kho cua sov yuav tsum tau - qhov sib txawv tseem ceeb yog kev xaiv muab tub lim (ERNiCrFe-3 rau 600, ERNiCrFe-11 rau 6010 consultant .Tsis yog alloy yog nag lossis daus- hardenable, yog li fabrication ua raws li kev paub txog austenitic.

Cov ntsiab lus tseem ceeb ntawm kev tsim khoom:

• Filler hlau.Siv qhov sib txuam lossis ze rau -cov khoom sib txuam yog li thaj tsam weld tau txais kev coj tus cwj pwm oxidation tib yam li cov hlau hauv paus - tshwj xeeb yog qhov tseem ceeb rau 601, qhov twg cov khoom siv austenitic zoo tib yam yuav dhau los ua qhov tsis muaj zog txuas ntawm 1100℃.
• Kev huv huv.Tag nrho cov siab - kub npib tsib xee alloys xav tau hlau huv ua ntej ua haujlwm kub thiab vuam. Sulfur, roj, thiab khw- kos duab crayons tuaj yeem embrittle lossis corrode welds; Cov neeg muab khoom sib xws ceeb toom tawm tsam leej faj-cov kabmob rau hauv qhov cua thaum lub sijhawm ua haujlwm kub ntawm 601.
• Txias txoj kev.Ob lub alloys ua haujlwm- tawv ntau dua stainless hlau; npaj intermediate anneals rau kev sib sib zog nqus.
• Annealing.601 feem ntau yog kev daws teeb meem-annealed nyob ib ncig ntawm 1100-1200℃nrog ceev txias kom rov qab ductility thiab optimize scale- ua tus cwj pwm; 600 yog annealed nyob ib ncig ntawm 1010-1150 degree.
• Machineability.Ob leeg yog "C-chav kawm" (qhov nyuaj) tshuab - cia siab tias yuav qeeb qeeb, kev teeb tsa nruj, thiab cov cuab yeej ntse carbide, zoo ib yam nrog tag nrho cov siab -nickel alloys.

Koj Yuav Txiav Txim Li Cas Ntawm 601 thiab 600?

Txiav txim siab nyob rau hauv qhov kev txiav txim no: ncov hlau kub, huab cua chemistry, lub voj voog zaus, ces tus nqi - yog tias ib qho ntawm peb thawj zaug thawb koj dhau 1050℃hauv oxidizing lossis carburizing kev pabcuam, xaiv 601; txwv tsis pub 600 yuav ua txoj haujlwm kom tau nyiaj tsawg.Siv daim ntawv tshuaj ntsuam no ntawm tus qauv tsim- theem tshuaj xyuas:

1. Peak thiab lub sijhawm- ntawm -kub.Tshaj li ~ 1050℃rau lub sijhawm muaj txiaj ntsig? → 601. Hauv qab ~ 1000℃txuas ntxiv? → 600 yog tag nrho txaus.
2. Cycling zaus.Txhua hnub lossis ntau zaus thermal voj voog saum toj no ~ 1000 degree? → 601, ua.
3. Huab cua.Oxidizing lossis carburizing ntawm qhov kub thiab txias → 601. Caustic, chloride-aqueous, los yog dissociated ammonia → 600. Txo cov sulfur nyob qhov twg hauv qhov ntau → tsis yog; nrog tus kws kho mob tshwj xeeb.
4. Load ntawm kub.Sagging-cov qauv txwv (cov raj ntev radiant, dav muffles) ntawm 1100℃+ → 601 (los yog ntsuas 617/602CA rau kev ntxhov siab ntau dua).
5. Code thiab lifecycle economics.Paub meej tias ASME kev lees paub rau lub luag haujlwm, tom qab ntawd tus nqi ob qho tib si alloys - tus nqi 601 yog tus nqi qis thiab feem ntau them rov qab rau hauv lub neej ntawm qhov kub thiab txias.

Yog tias koj tsis paub meej, xa peb cov dej num tsis zoo (kub profile, huab cua, lub voj voog zaus, tsim lub neej) thiab peb pab neeg metallurgical yuav pom zoo rau qib kev lag luam - uas kev sab laj tsis muaj nqi thiab tiv thaiv ob qho kev ua yuam kev classic: hauv qab - qhia 600 rau hauv 1150℃cycling lub luag haujlwm, thiab dhau mus rau {06.

Cov lus nug nquag

Dab tsi yog qhov txawv ntawm Inconel 601 thiab Inconel 600?

Inconel 601 muaj 1.0-1.7% txhob txwm tshaj tawm aluminium ntxiv rau siab dua chromium (21-25%), muab oxidation tsis kam mus txog 1250 degree. Inconel 600 muaj qhov tseem ceeb tsis muaj txhuas, 14-17% chromium, thiab ntau dua lossis sib npaug li 72% npib tsib xee, nrog oxidation tsis kam mus txog 1093℃tab sis superior caustic thiab chloride kuj. Tshaj 1000℃hauv huab cua, 601 yog qhov ua tau zoo dua.

Ntau npaum li cas txhuas txhuas alloy yeej muaj?

Inconel 601 tau teev tseg ntawm 1.0–1.7 wt.% txhuas (nominal ~ 1.4%). Inconel 600 tsis muaj qhov tshwj xeeb txhuas; residual kab los ntawm melting feem ntau yog qis dua 0.35%. Qhov no kwv yees li 1.4-feem pua- taw tes qhov sib txawv yog tus tsav tsheb loj tshaj plaws ntawm cov alloys qhov sib txawv ntawm qhov kub thiab txias.

Qhov kev pabcuam siab tshaj plaws ntawm Inconel 601 yog dab tsi?

Kwv yees li ntawm 1250℃(2280℃F) hauv huab cua rau oxidation thiab spalling kuj - qee cov neeg tsim khoom hais txog cyclic tsis kam mus txog 1260℃. Lub zog siv tau poob qis zoo ua ntej qhov kev txwv, yog li cov khoom muaj kev ntxhov siab heev yuav xav tau qis dua lossis siab dua - qib zog xws li 617 lossis 602CA.

Qhov kev pabcuam siab tshaj plaws ntawm Inconel 600 yog dab tsi?

Txog 1093℃(2000℃F) rau oxidation tsis kam hauv huab cua; Qee qhov chaw pom zoo cov kev pabcuam txuas ntxiv ze dua 980℃rau kev tsim lub neej ntev. Nws qhov kev tiv thaiv chromia nplai loj hlob thiab nthuav dav sai dua li qhov kub thiab txias nce mus txog 1000 degree.

Vim li cas aluminium ho txhim kho oxidation tsis kam?

Aluminium oxidizes ua ntej ntawm cov hlau - nplai interface, tsim ib nyias, ntom, qeeb- loj hlob Al₂O₃ txheej. Cov txheej no thaiv cov pa oxygen diffusion thiab mechanically anchors lub overlying chromia - nplua nuj nplai, tiv thaiv qhov spalling (flaking) uas rhuav tshem cov chromia scales nyob rau hauv thermal cycling saum 1000℃.

Yam alloy zoo dua nyob rau hauv thermal cycling?

Inconel 601, los ntawm qhov dav dav. Nws cov aluminium-anchored scale muaj sia nyob rov qab mus rau 1200℃+ nrog tsawg kawg nkaus poob, uas yog vim li cas nws yog tus qauv kev lag luam rau batch- cub muffles, radiant tubes, thiab tshav kub- kho fixtures. Inconel 600 nce zuj zus thiab rov ua nws qhov ntsuas hauv kev ua haujlwm hnyav.

Inconel 600 puas tseem siv tau tshaj 1000 degree?

Yog lawm, nyob rau hauv cov neeg xav tau tsawg dua - kev mus ncig luv luv, kev thauj khoom qis, lossis cov huab cua zoo. Tab sis nyob ze nws qhov ntsuas 1093 degree, cia siab tias yuav oxidation sai dua, nplai spalling hauv kev caij tsheb kauj vab, thiab txo cov npoo rau lub neej ntev. Rau kev txhawb nqa lossis kev ua haujlwm cyclic saum toj no ~ 1050 degree, 601 yog qhov kev xaiv zoo dua qub.

Dab tsi alloy resists carburization zoo dua?

Inconel 601. Nws qeeb - loj hlob, adherent oxide scale tseem yog cov pa roj carbon barrier zoo dua nyob rau hauv huab cua kub, thaum 600's tawg los yog spalled scale exposes liab qab hlau rau carbon pickup. Ob leeg, txawm li cas los xij, yuav tsum zam kom txo tau -sulfur cua.

Cov hlau twg yog qhov zoo dua rau kev pab cuam caustic soda (NaOH)?

Inconel 600. Nws Ntau dua los yog sib npaug rau 72% cov ntsiab lus nickel muab kev lag luam- ua rau muaj kev kub ntxhov siab, qhov twg 601 qis nickel (58-63%) ua rau nws zoo xwb. Rau caustic evaporators thiab alkali ua hauv qab qhov siab tshaj - qhov kub thiab txias, 600 yog tus qauv.

Puas yog ob qho tib si alloys them los ntawm tib ASTM specifications?

Yog lawm. Ob leeg yog tsim rau ASTM B168 (phaj / ntawv / sawb), B166 (bar), B167 (seamless raj / yeeb), thiab B564 (forgings), nrog ASME counterparts. Txheeb xyuas tus lej UNS (N06600 vs N06601) ntawm txhua daim ntawv pov thawj zeb xeem, txij li cov khoom- daim ntawv qhia tshwj xeeb zoo ib yam.

Dab tsi welding fillers yuav tsum tau siv?

ERNiCrFe-3 (Alloy 82/FM 82) yog cov khoom siv ib txwm siv rau Inconel 600; ERNiCrFe-11 yog qhov sib txuam muab tub lim rau 601 yog li cov vuam tau txais tib yam oxidation tsis kam. Ob lub alloys vuam los ntawm GTAW / GMAW / SMAW yam tsis muaj preheat lossis tom qab vuam kev kho cua sov.

Lub alloy twg muaj zog dua ntawm qhov kub thiab txias?

Inconel 601 khaws cia kwv yees li 80-90 MPa lub zog tensile ntawm 1000℃piv rau kwv yees li 50-60 MPa rau 600 nyob ze qhov kub ntawd, thiab nws zoo dua tiv taus cov kab nrib pleb hauv cov phiaj xwm ntev rauv. Ib txwm tsim los ntawm cov zeb tam sim no - ntawv pov thawj thiab cov ntaub ntawv code es tsis yog cov txiaj ntsig zoo.

Qhov twg alloy raug nqi ntau dua?

Inconel 601 feem ntau nqa tus nqi qis tshaj 600 vim nws cov chromium siab dua thiab teev cov txhuas. Tus nqi them feem ntau yog them rov qab rau lub neej ntev dua li ntawm 1000℃- tab sis qhia txog 600 qhov twg nws lub qab nthab txaus yog qhov kev lag luam, kev xaiv raug.

Inconel 601 puas tuaj yeem ua cov tshuaj sulfur- muaj cov huab cua?

Tsis muaj - thiab tsis tuaj yeem 600. Nickel alloys raug kev puas tsuaj rau sulfidation nres (tsawg- melting nickel-sulfide theem) hauv kev txo cov sulfur ib puag ncig ntawm qhov kub thiab txias. Tsis txhob H₂S- bearing thiab txo-SO₂ gases saum toj li ntawm 600℃rau ob qib, thiab sab laj tus kws tshaj lij rau lwm txoj hauv kev.

UNS thiab EN sib npaug yog dab tsi?

Inconel 600 yog UNS N06600 / EN W.Nr. 2.4816; Inconel 601 yog UNS N06601 / EN W.Nr. 2.4851. Ob leeg kuj tau tsim rau AMS aerospace specifications. Kev txiav txim los ntawm UNS tus lej zam kev lag luam - lub npe tsis meej nyob thoob cov neeg tsim khoom.

Kuv yuav tsum xaiv qhov twg rau qhov cub muffles lossis cov raj radiant?

Inconel 601 - nws yog tus qauv kev lag luam de facto rau cov ntawv thov no. Kev sib xyaw ua ke ntawm 1250℃oxidation tsis kam, spallation- pov thawj kev coj tus cwj pwm, thiab lub zog sag zoo muab cov phiaj xwm ntev tshaj plaws ntawm kev kho dua tshiab hauv cov pa roj- raug rho tawm haujlwm thiab hluav taws xob thermal- cov cuab yeej ua haujlwm.