Thaum koj hnov 'kev nqis peev casting Inconel', qhov kev xav tam sim no feem ntau hais txog kev ua tau zoo-turbine blades, aerospace manifolds, yam ntawd. Tab sis muaj qhov sib txawv ntawm daim ntawv spec thiab qhov dej tiag tiag. Ntau lub khw hais tias lawv tuaj yeem ua tau, tab sis tuav cov nickel-based alloys, tshwj xeeb tshaj yog cov nyiam ntawm Inconel 718 lossis 625, tsis yog tsuas yog muaj lub plhaub ceramic thiab lub cub tawg. Qhov ua kom yuam kev tiag tiag yog nyob rau hauv kev tswj xyuas thermal, kev tsim lub rooj vag, thiab hais ncaj ncees, paub thaum twg yuav tsum taug kev deb ntawm lub geometry uas tsuas yog nug txog teeb meem. Kuv tau pom ntau tshaj ib lub tsev muag khoom vim tias qhov kev tsom xam tsuas yog ntawm cov khoom siv ntawm cov duab kos, tsis yog nyob ntawm seb nws coj li cas thaum nws molten thiab sib tw los ntawm pwm.
Lub Alloy tsis yog tag nrho zaj dab neeg
Pib nrog lub yaj yog qhov uas koj cais cov lus los ntawm kev ua haujlwm. Inconel muaj tus cwj pwm phem ntawm kev hnov qab yog tias koj tau txais huab cua tsis raug. Peb khiav peb lub tshuab nqus tsev vacuum nruj, tab sis txawm tias tom qab ntawd, cov kab ke tuaj yeem ua rau muaj teeb meem. Nws tsis yog tsuas yog tiv thaiv oxidation; nws yog hais txog kev tswj tus nqi cua txias los ntawm kev mus. nrawm dhau, thiab koj kaw hauv kev ntxhov siab thiab txhawb nqa micro-porosity uas yuav ua tsis tiav kev tshuaj xyuas tom qab. qeeb dhau, thiab koj tau txais cov qoob loo ntau dhau, tua cov khoom siv kho tshuab uas koj tau ua rau thawj qhov chaw.
Kuv nco qab ib pawg rau cov txheej txheem zoo li qub nyob rau hauv av-raws li turbine. Daim ntawv sau npe rau peev casting Inconel 718, standard khoom. Tab sis cov phab ntsa thickness variations tau hnyav heev. Peb nchuav, thiab NDT tau pom daim nqi huv. Txawm li cas los xij, thaum lub sij hawm kho cua sov theem, ob peb qhov chaw warped tshaj kev cawmdim. Tus neeg ua txhaum? Uneven solidification tsim cov qauv kev ntxhov siab sab hauv uas cov cua sov kho tsuas yog exacerbated. Cov alloy tau ntsib spec, tab sis cov txheej txheem tsis suav nrog nws tus cwj pwm tshwj xeeb thermal contraction. Peb yuav tsum rov qab mus, rov tsim dua peev casting rooj vag los tsim kom muaj cua txias ntau dua, thiab ntxiv cov kauj ruam kev ntxhov siab ua ntej kev kho cua sov tag nrho. Nws ntxiv cov nqi thiab sijhawm, tab sis nws yog qhov ntawd lossis seem.
Qhov no yog qhov uas muaj kev paub nrog tag nrho cov saw tseem ceeb. Lub khw uas tsuas yog nchuav hlau thiab nkoj nws yog lub luag haujlwm. Koj xav tau lub foundry thiab machining nyob rau hauv ib lub ru tsev, los yog tsawg kawg nyob rau hauv nruj kev sib koom tes. Kuv tau ua haujlwm nrog Qingdao Qiangsenyuan Technology Co., Ltd. (QSY) ntawm prototyping ua ntej. Lawv qhov kev teeb tsa ua rau kev txiav txim siab - dhau 30 xyoo hauv kev casting thiab machining, tuav txhua yam ntawm plhaub pwm mus rau peev casting thiab tom qab ntawd CNC ua haujlwm ntawm tib cov ntaub ntawv. Rau Inconel, qhov txuas ntxiv yog qhov tseem ceeb. Koj tsis tuaj yeem muaj lub tsev casting liam tus kws kho tshuab rau qhov chaw nyuaj, thiab tus kws kho tshuab thuam qhov tsis zoo. Thaum nws yog ib qho chaw, lub voj voog tawm tswv yim yog tam sim ntawd. Lawv pom tag nrho lub neej voj voog, los ntawm siv quav ciab mus rau qhov kawg, uas qhia txog kev txiav txim siab zoo dua nyob rau theem pouring.
Qhov twg txheej txheem tom qab
Lub tsev Plhaub yog lwm qhov kev sib ntaus sib tua uas ntsiag to. Rau cov pa roj carbon steel, cov txheej txheem slurry thiab stucco yuav ya. Rau Inconel, tshwj xeeb tshaj yog rau nyias-walled lossis complex sab hauv qhov chaw, lub plhaub xav tau tshwj xeeb thermal stability thiab collapsibility. Yog tias lub plhaub muaj zog heev, nws txwv cov casting thaum lub caij txias, ua rau lub kua muag kub. Yog tias nws tsis muaj zog heev, nws yuav tawg thaum tuav lossis nchuav nws tus kheej. Peb tau sim nrog sib txawv refractory blends - fused silica, zircon, alumina - sim nrhiav qhov sib npaug rau ib qho Inconel 625 valve lub cev. Nws tau siv peb qhov kev hloov pauv kom tau lub plhaub uas yuav muaj sia nyob ntawm autoclave dewaxing thiab 1500 ° C + ncuav yam tsis muaj buckling lossis ua rau muaj teeb meem saum npoo ntawm qhov nrum.
Dimensional raug yog thaj av tau cog lus tseg peev casting, tab sis nrog Inconel, shrinkage tsis yog ib txwm kwv yees. Cov ntawv luam tawm shrinkage pub yog qhov pib, tsis yog qhov lav. Qhov tseeb yog nyob ntawm qhov geometry, qhov rooj, thiab seb peb taw qhia nws li cas hauv pawg. Peb tuav ib lub tsev qiv ntawv ntawm kev kho qhov tseem ceeb rau peb tsev neeg ib feem. Ib qho yooj yim cylindrical zoo yuav zoo nrog cov ntawv nyeem 2.1% linear shrinkage. Tab sis ib feem nrog kev sib tshuam ribs, zoo li lub tsev compressor, yuav rub txawv. Peb kawm qhov no nyuaj ntawm kev txiav txim siab thaum ntxov. Peb tau siv cov txheej txheem shrinkage, thiab qhov kawg cam khwb cia yog tsis kam rau ntawm qhov tseem ceeb mating nto. Yuav tsum tau rov ua cov cuab yeej siv quav ciab tuag, uas teeb tsa qhov project rov qab lub lis piam. Tam sim no, rau ib qho tshiab geometry, peb mam li khiav ib simulation yog hais tias lub ntim justifies nws, los yog txawm ncuav ib tug sacrificial qauv nyob rau hauv ib tug cheaper alloy ua ntej ntsuas qhov tseeb shrink.
Post-casting yog qhov uas ntau tus xav tias kev ua haujlwm nyuaj ua tiav. Tsis yog. Inconel lub zog los ntawm nws cov nag lossis daus hardening. Rau 718, uas txhais tau hais tias ib ntus meej: kev daws teeb meem, quench, hnub nyoog. Tus nqi quench yog qhov tseem ceeb. Yog hais tias qhov chaw txias los ntawm kev daws qhov kub thiab txias heev, koj tau txais nag lossis daus ntau dhau ntawm kev ntxiv dag zog rau theem ntawm cov qoob loo, ua rau nws nkig. Peb muaj ib pawg uas lub quenching khib yog overloaded, thiab qhov chaw nyob rau hauv qhov chaw txias qeeb qeeb. Lawv dhau qhov kev kuaj thawj zaug hardness tab sis ua tsis tau zoo heev hauv kev sim qaug zog tom qab. Kev ntsuas tsis ua hauj lwm taw qhia txoj cai ntawm kev cuam tshuam microstructure los ntawm qhov tsis sib xws. Nws yog qhov tsis ua haujlwm logistics, tsis yog metallurgy, tab sis qhov tshwm sim yog tib yam - cov khoom seem.
Machining: Lwm Ib nrab ntawm Kev Sib Tw
Qhov no yog vim li cas tus qauv kev koom ua ke ntawm lub tuam txhab zoo li QSY yog qhov cuam tshuam. Casting ib feem zoo meej Inconel tsuas yog ib nrab ntawm txoj haujlwm. Yog hais tias lub downstream CNC machining tsis tuned rau cov khoom ua hauj lwm-hardening xwm, koj yuav puas ib tug zoo casting. Inconel yog abrasive thiab tawv. Nws luag ntawm standard tooling. Koj xav tau kev teeb tsa nruj, cov qib tshwj xeeb carbide, cov cua txias siab kom tawg cov nti, thiab qis qis, cov nqi noj zoo ib yam. Lub hom phiaj yog los txiav cov khoom yam tsis txhob cia cov cua sov tsim, uas tsuas yog hardens thaj tsam koj tab tom sim txiav.
Peb ib zaug tau txais ib qho zoo nkauj cam khwb cia Inconel 718 bracket, tsuas yog kom peb tus kws kho tshuab snap peb kim kawg mills sim zeb ib qho yooj yim. Qhov teeb meem? Cov tawv nqaij casting, thaum pom lub suab, muaj ib qho nyuaj me ntsis, hloov microstructure los ntawm kev sib cuag nrog lub plhaub. Peb cov qauv machining tsis, uas ua haujlwm rau sab hauv ntawm ib feem, tau nruj heev rau cov tawv nqaij ntawd. Peb yuav tsum tau ntxiv ib lub teeb, pib roughing dhau nrog cov tsis tshwj xeeb xwb kom tawg los ntawm cov txheej saum npoo. Nws yog ib qho nuance koj tsuas yog kawm los ntawm kev ua, lossis los ntawm kev ua haujlwm nrog tus khub uas nws lub tuam txhab CNC tham txhua hnub nrog lawv cov chaw tsim khoom. Tshawb xyuas lawv qhov chaw ntawm tsi.com, koj tuaj yeem pom lawv sau ob qho tib si peev casting thiab CNC machining rau nickel-based alloys. Qhov kev paub sib xyaw ua ke yog dab tsi tiv thaiv cov kev xav tsis thoob no. Tus kws kho tshuab paub txog qhov xav tau los ntawm kev tsim cov txheej txheem, thiab cov neeg tsim khoom paub tias tus kws kho tshuab xav tau dab tsi rau kev txiav kom huv.
Surface integrity yog qhov tseem ceeb rau qhov qaug zog-tseem ceeb. Kev ua haujlwm tsis zoo tuaj yeem qhia txog micro-cracks lossis tensile stresses uas dhau los ua cov ntsiab lus pib rau kev ua tsis tiav. Qhov no yog qhov kawg machining cov kauj ruam - feem ntau sib tsoo lossis honing rau qhov chaw tseem ceeb - ua ib feem ntawm cov saw zoo. Nws tsis yog qhov kev xav tom qab; nws yog tus txheej txheem teev tseg. Lub peev xwm los tswj tag nrho cov saw hlau, los ntawm cov hlau molten mus rau qhov kawg tiav, nyob rau hauv ib qho kev ua tau zoo, txo cov kev hloov pauv loj heev.
Qhov Tseeb Ntawm Kev Muag Khoom thiab Vetting
Yog li, thaum koj muab khoom peev casting Inconel, Koj yuav tsum nrhiav dab tsi dhau ntawm daim ntawv muag khoom? Ua ntej, nug txog lawv cov kev tswj xyuas thermal. Puas yog lawv tsuas yog ua raws li daim ntawv qhia, lossis lawv puas kho qhov tsis xws li ncuav kub thiab pwm ua ntej cua sov raws li ib feem geometry? Thib ob, soj ntsuam lawv cov khoom siv traceability. Rau aerospace lossis roj & roj, koj xav tau cov ntaub ntawv pov thawj tag nrho thiab tshuaj xyuas chemistry. Lawv puas tuaj yeem muab qhov ntawd? Qhov thib peb, thiab qhov tseem ceeb tshaj plaws, saib lawv cov peev txheej tom qab kev ua haujlwm. Puas yog lawv ua kom sov hauv tsev rau cov ntawv pov thawj (xws li AMS 2774)? Lawv puas muaj CNC machining nplooj siab rau cov alloys nyuaj, los yog lawv puas outsource nws?
Ib tus neeg muag khoom zoo li QSY, nrog rau lawv lub xyoo dhau los ntawm keeb kwm, feem ntau muaj cov kab ke no hauv txaj. Nws txhais tau hais tias lawv tau ntsib - thiab daws tau - cov teeb meem kev sib cuam tshuam ntawm cov txheej txheem casting thiab ua tiav. Lawv tsis yog ciab-thiab-pob khw; lawv yog cov khoom tsim khoom. Qhov kev sib txawv ntawd tseem ceeb.
Thaum kawg, ua tiag tiag txog tus nqi thiab lub sijhawm ua haujlwm. Kev tsim nyog Inconel peev cast tsis pheej yig lossis nrawm. Cov cuab yeej rau cov qauv siv quav ciab yog qhov tseeb. Lub plhaub txheej txheem yog ntau hnub. Kev kho cua sov yog ib qho tseem ceeb tswj kev ua haujlwm. Thiab lub machining yog qeeb. Yog tias cov lus pom zoo dhau los ua qhov tseeb, lawv tej zaum yuav txiav cov ces kaum-tej zaum ntawm lub tshuab nqus tsev thaum lub sij hawm melting, los yog hla lub voj voog HIP (Hot Isostatic Pressing) kom kaw qhov porosity, los yog siv cov cuab yeej siv rau kev siv tshuab. Ib qho ntawm cov no yuav rov qab los haunt ib feem hauv kev pabcuam. Tus nqi tsis nyob hauv phaus hlau koj tau txais; nws yog nyob rau hauv kev tswj, sau tseg, thiab kev sib xyaw ua ke uas hloov cov hlau ntawd rau hauv cov khoom siv txhim khu kev qha. Qhov ntawd yog qhov koj them nyiaj tiag tiag.
