Thaum ib tug neeg hais tias 'incoloy ib feem', feem ntau xav tias lawv tsuas yog tham txog cov nickel alloy uas tiv taus cua sov. Qhov ntawd yog qhov chaw. Qhov tseeb yog, nws yog kev cog lus. Koj tsis yog tsuas yog xaj ib feem; koj tab tom kos npe rau tag nrho cov txheej txheem saw uas cov ntaub ntawv kev paub yog qhov yooj yim. Qhov kev sib tw tiag tiag yog nyob rau hauv kev tsim-casting, machining, thermal kho seev cev. Kuv tau pom ntau tus qauv tsis ua haujlwm vim tias lawv tau kho Incoloy 825 lossis 925 zoo li cov hlau tsis zoo. Tsis yog. Nws yog ib tug tsiaj nyaum uas xav tau kev hwm los ntawm thawj tus qauv.
Lub Foundry Floor Reality
Cia peb pib qhov twg nws pib: lub ncuav. Nrog cov alloys, tshwj xeeb tshaj yog cov siab dua chromium sawv daws nyiam Incoloy 800H, lub plhaub pwm txheej txheem tsawg dua ntawm kev kos duab thiab ntau ntxiv txog kev tswj hwm kev phem. Gating tsim tsis yog rau ntws; nws yog rau directional solidification kom txo kub tearing. Peb kawm qhov no txoj kev nyuaj ntawm ib pawg ntawm lub cev valve xyoo rov qab. Cov khoom zoo li zoo meej, tab sis kev ntsuas siab tau qhia txog micro-cracks raws li seem seemingly random. Tus neeg ua txhaum? Txias tus nqi inconsistency nyob rau hauv ib tug tuab seem. Cov pwm kub sib txawv tsuas yog 30 ° C tawm ntawm ib sab ntawm autoclave mus rau lwm qhov. Yog tag nrho nws coj.
Qhov no yog qhov uas tus foundry pedigree qhia. Ib lub khw uas khiav feem ntau cam khwb cia hlau yuav tawm tsam. Cov thermal profiles yog ntiaj teb sib nrug. Kuv nco qab mus xyuas Qingdao Qiangsenyuan Technology (QSY) ib pliag rov qab. Dab tsi sawv tawm tsis yog lawv qhov cub muaj peev xwm, tab sis lawv cov ntaub ntawv txheej txheem rau nickel-based alloys. Lawv muaj qhov tshwj xeeb dew point tswj tau nkag rau lawv lub voj voog kom qhuav rau lub plhaub pwm. Qhov kev nthuav dav no qhia rau koj tias lawv tau tawm tsam cov dej-nqus-thiab-gas-porosity sib ntaus sib tua ua ntej. Lawv 30-xyoo stint hauv casting tsis yog tus lej xwb; nws yog ib lub tsev qiv ntawv ntawm kev daws teeb meem.
Kev kho cua sov tom qab pov tseg yog lwm qhov minefield. Kev daws teeb meem annealing cov khoom no tsis yog 'teeb nws thiab tsis nco qab nws' lub voj voog hluav taws xob. Lub sijhawm nyob rau hauv qhov ntsuas kub tseem ceeb rau carbide nag lossis daus yog nruj heev. Ua kom qeeb dhau, thiab koj tau txais qib sigma hauv thaj tsam lis, tua cov tawv tawv. Peb ib zaug yuav tsum tau muab pov tseg tag nrho cov twj tso kua mis vaj tsev vim tias lub qhov cub muaj qhov tsis zoo thermocouple, khiav 25 ° C txias dua li qhov pom. Cov khoom dhau qhov ntsuas qhov ntsuas tab sis tawg hauv kev ntxhov siab. Zaj lus qhia? Cov ntawv pov thawj yog qhov zoo, tab sis kev lees paub hauv txheej txheem yog txhua yam.
Machining: Qhov Kev Xav Tau Raws Li Cov Cuab Yeej
Yog hais tias casting yog kev tswj kub, machining Incoloy yog kev ua tsov ua rog ntawm attrition. Qhov kev ua haujlwm-hardening tus nqi yog ferrocious. Koj mus rau hauv nrog me ntsis npub ntxig, thiab thaum lub sij hawm koj nyob nraum 2 hli rau hauv kev txiav, cov khoom tau hardened ua ntej ntawm lub cuab tam, ua rau ntug chipping thiab tsis zoo nto tag. Nws tsis yog hais txog horsepower; Nws yog hais txog rigidity thiab relentless sib xws.
CNC programming rau cov khoom no xav tau kev xav txawv. Koj tsis tuaj yeem siv tib qhov kev kub ceev, lub teeb hla lub tswv yim uas koj xav siv rau txhuas. Nws yog hais txog kev ceev qis, siab pub, thiab kev koom tes tas li kom tau raws li cov txheej txheem ua haujlwm hnyav. Coolant tsis yog ua kom txias xwb; nws yog ib tug lubricant los tiv thaiv built-up ntug. Kuv twb tau txais txiaj ntsig zoo tshaj plaws nrog kev kub siab los ntawm cov cuab yeej ua kom txias, ua kom tiav cov nti thiab ntxuav nws tawm ua ntej nws rov welds. Ib tug khub zoo li QSY, nrog lawv cov kab mob siab CNC rau cov alloys tshwj xeeb, feem ntau muaj cov txheej txheem no hu rau hauv. Lawv nkag siab tias machining ib qho Ib feem tsis yog ib sab hauj lwm rau lawv lub tuam tsev stainless.
Kev xaiv cov cuab yeej yog pom tseeb-ceramic lossis carbide nrog cov txheej tshwj xeeb. Tab sis qhov tsawg-hais-hais txog hero yog lub fixture. Koj xav tau cov ntsiab lus loj thiab clamping uas tsis tsim kom muaj kev sib haum xeeb. Ib qho kev sib tham tam sim ua hauj lwm-hardens ntawm qhov chaw, ua rau lub sij hawm dhau mus. Peb ib zaug siv ob hnub los sim seb vim li cas peb thiaj li tau txais taper ntawm kev ua haujlwm tho txawv yooj yim. Tig tawm lub tshuab nqus tsev chuck muaj lub microscopic leak, tso cai rau 5-micron flex. Ntawm cov khoom siv feem ntau, tsis cuam tshuam. Ntawm Incoloy 925, nws tau muab cov haujlwm ua pov tseg.
Qhov Tshwj Xeeb Alloys Niche thiab Real-World Fit
Lo lus 'tshwj xeeb alloys' tau cuam tshuam los ntawm xoob. Rau tus neeg tsim khoom, nws feem ntau txhais tau tias 'kim thiab nyuaj.' Tab sis rau tus neeg siv kawg hauv kev ua tshuaj lom neeg lossis lub zog tsim hluav taws xob, nws txhais tau tias 'qhov uas tsis tawg tom qab rau lub hlis hauv cov kua qaub kub.' Qhov no yog tus nqi ntawm tus kws tshaj lij. Lawv txuas qhov sib txawv ntawm kev nkag siab.
Saib ntawm lub tuam txhab profile zoo li QSY's, cov kab lus tseem ceeb yog kev sib xyaw ua ke: plhaub pwm casting, peev casting, thiab CNC machining rau tshwj xeeb alloys. Nws yog vertically integrated rau complexity. Nws txhais tau tias lawv muaj peev xwm coj ib tug horribly complex, nyias-walled Ib feem tsim-hais tias, lub taub hau hluav taws kub hnyiab nrog cov channel sab hauv-ntxuav nws los ntawm kev nqis peev rau ze-net zoo li, thiab tom qab ntawd ua tiav qhov tseem ceeb ntawm lub ntsej muag ntawm CNC, tag nrho hauv ib lub ru tsev. Cov khoom siv tsis tau raug xa tawm ntawm lub tsev tsim khoom thiab lub khw muag khoom, uas txo cov kev pheej hmoo kis kab mob thiab, qhov tseem ceeb tshaj, ua kom cov txheej txheem kev paub tsis tu ncua.
Kuv tau hais txog lwm txoj hauv kev: lub tsev cam khwb cia rau lub khw muag khoom kom ua rau muaj kev ntxhov siab, lub khw muag khoom liam lub tsev cam khwb cia rau qhov chaw nyuaj. Nws yog npau suav phem. Kev koom ua ke txiav los ntawm qhov ntawd. Nws tso cai rau kev tawm tswv yim loops. Tej zaum cov machinists pom tias qee qhov flange yog qhov nyuaj heev los txiav kom zoo. Lawv tuaj yeem taug kev rov qab mus rau pawg neeg tsim khoom thiab tawm tswv yim tweak rau lub voj voog annealing rau qhov tshwj xeeb geometry. Qhov ntawd yog kub ua haujlwm.
Ua tsis tiav raws li Kev Ua Haujlwm Ua Haujlwm
Koj tsis kawm cov ntaub ntawv no tiag tiag kom txog thaum muaj qee yam tawg. Ib qho ntawm peb qhov kev kawm tsis tau zoo tshaj plaws yog cov txheej txheem kho cua sov ua los ntawm Incoloy 601. Daim ntawv thov yog ncaj nraim: nqa cov khoom los ntawm lub qhov cub carburizing. Lawv kav ib feem peb ntawm lub neej xav tau, sagging phem. Kev tshuaj xyuas pom tau tias peb tau teev cov alloy kom raug rau oxidation tsis kam, tab sis peb tau saib tag nrho cov creep zog nyob rau hauv load ntawm qhov kub thiab txias. Peb nyob hauv tsev neeg cov khoom raug, tab sis qib tsis raug. 601 yog qhov zoo, tab sis rau kev txhawb nqa ntawm qhov ntau, DS (kev daws teeb meem ob zaug) 800H yuav yog tus hu.
Qhov no yog qhov chaw xaiv cov khoom siv dav dav tsis ua haujlwm. Lawv qhia koj tias dab tsi tiv thaiv corrosion, tsis yog dab tsi tuav cov duab hauv qab nws qhov hnyav ntawm 2100 ° F rau 5000 teev. Cov nuance zoo li no yog qhov koj them rau nrog tus tsim kev paub dhau los. Lawv tau ua yuam kev lawv tus kheej los yog pom ib tus neeg siv khoom ua nws. Thaum kuv pom ib tus neeg muag khoom uas qhia meej cov tsev neeg xws li cobalt-based thiab npib tsib xee-raws li alloys, nws qhia tias lawv tau siv rau cov kev sib tham no. Lawv paub cov lus nug tsis yog koj ua tau xwb? tab sis nws puas yuav ciaj sia nyob qhov twg nws yuav mus?
Tus Takeaway: Nws yog kev sib koom tes, tsis yog kev yuav khoom
Yog li, thaum koj tab tom nrhiav ib qho Ib feem, koj tsis yog yuav ib tug hunk ntawm hlau. Koj tab tom yuav mus rau hauv tus neeg muag khoom qhov kev paub ntau ntxiv nrog thermal dynamics, metallurgical theem hloov, thiab kev ua haujlwm siab phem physics. Daim duab kos yog qhov pib xwb. Txoj haujlwm tiag tiag yog nyob rau hauv kev sib tham: Qhov no yog dab tsi? Lub voj voog thermal yog dab tsi? Puas muaj kev ntxhov siab cyclic? Ib tus neeg muag khoom zoo yuav nug cov lus nug no. Ib qho zoo, zoo li cov hauv paus tob hauv ob qho tib si casting thiab machining cov tsiaj nyaum no, yuav qhia lwm txoj hauv kev uas koj tsis tau txiav txim siab-ib lub vojvoog me ntsis hloov los txhim kho cov dej ntws, kev ua siab ntev uas txuag 20 teev ntawm machining, zoo dua-qib qib ntawm Incoloy.
Thaum kawg, qhov uas tuaj txog ntawm koj qhov chaw nres nkoj yog qhov ua pov thawj rau qhov kev sib koom tes. Nws tsis yog khoom. Nws yog ib qho kev daws teeb meem engineering, khov rau hauv cov tawv tawv heev, muaj txiaj ntsig zoo kawg. Lub hom phiaj yog rau qhov ntawd kom tsis muaj kev ntseeg siab hauv kev pabcuam uas txhua tus tsis nco qab qhov mob uas nws tau ua. Thaum ntawd yog thaum koj paub tias koj ua nws yog lawm.
