Thaum koj hnov 'kev nqis peev sai sai', feem ntau xav tias nws tsuas yog hais txog kev nplawm 'ceev' mus rau cov txheej txheem qub ploj. Qhov ntawd yog thawj qhov pitfall. Muaj tseeb ceev ceev ntawm no tsis yog hais txog lub voj voog lub sij hawm compression; Nws yog qhov kev xav rov ua dua tshiab ntawm cov qauv tsim, plhaub, thiab dewaxing, tag nrho thaum tuav mus rau qhov kev ncaj ncees uas ua rau peev casting muaj txiaj ntsig. Ntau lub khw thov nws, tab sis qhov sib txawv ntawm kev thov thiab xa khoom yog qhov chaw ua haujlwm tiag tiag - thiab qhov tsis txaus ntseeg - tshwm sim.
Lub ntsiab lus yuam kev: Ceev vs. Kev ncaj ncees
Qhov yuam kev loj tshaj plaws uas kuv pom yog qhov kev xav tias koj tuaj yeem ua kom cov txheej txheem ib txwm muaj. Koj ua tsis tau. Ncuav nyiaj rau hauv 3D tshuab luam ntawv sai dua rau cov qauv yog ib yam, tab sis yog tias koj lub plhaub lub tsev lub sij hawm tsis tuaj yeem khaws cia, lossis koj lub voj voog kub hnyiab tsis ruaj khov, koj nyuam qhuav tsim ib lub fwj kim heev. Qhov ' nrawm' yuav tsum tau tsim kho rau hauv txhua theem, thiab qhov kev tsim vaj tsev yog tsis sib tham. Nws yog qhov sib npaug, ib txwm muaj qhov sib npaug, nruab nrab ntawm thermal dynamics ntawm cov slurry formulations tshiab thiab cov neeg kho tshuab lub zog xav tau los tuav.
Piv txwv li, peb ib zaug sim txais yuav cov khoom siv tshiab UV-kho tau uas tau cog lus tias yuav txo tau 60% hauv cov qauv tsim lub sijhawm. Qhov ceev yog tiag tiag. Qhov teeb meem tshwm sim thaum lub sij hawm autoclave dewaxing. Qhov sib txawv thermal expansion coefficient piv rau peb cov qauv siv quav ciab ua rau micro-cracks nyob rau hauv thawj slurry tsho tiv no, ua rau 40% plhaub tsis ua hauj lwm tus nqi nyob rau hauv thawj batch. Qhov ntawd yog hom 'ceev' uas ua rau koj siv sijhawm ntau thiab nyiaj txiag. Nws yuam peb rov qab mus rau lub chaw kuaj mob txhawm rau tweak lub slurry refractoriness thiab binder piv tshwj xeeb rau cov khoom tshiab. Cov tshuaj tsis yog universal; nws yog qhov kho kom haum.
Qhov no yog qhov uas qhov kev ua haujlwm ntev ntev dhau los ua qhov tseem ceeb. Ib lub tuam txhab zoo li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nrog lawv 30-xyoo lub hauv paus hauv plhaub molding thiab peev casting, tau zoo li pom cov voj voog ntawm kev tsim kho tshiab thiab kev thim rov qab. Lub koom haum nco txog yuav ua li cas cov ntaub ntawv coj tus cwj pwm nyob rau hauv kev ntxhov siab yog dab tsi tiv thaiv qhov muag tsis pom kev mus rau txhua qhov tshiab 'ceev' daws. Koj tuaj yeem pom ntau ntxiv txog lawv txoj hauv kev ntawm lawv qhov chaw, tsi.com. Lawv qhov tshwj xeeb thoob plaws cam khwb cia hlau mus rau npib tsib xee-raws li alloys qhia lawv nkag siab tias 'ceev' tsis haum rau stainless hlau yuav tsis siv rau cobalt-based alloy. Qhov ntawd yog qhov nuance.
Tus Qauv Hloov Kho: Tshaj 3D Luam Ntawv
Yog lawm, 3D luam ntawv, tshwj xeeb tshaj yog stereolithography (SLA) los yog binder jetting, yog lub rooj vag rau feem ntau mus rau hauv ceev prototyping rau casting. Tab sis kev kho tus qauv luam tawm raws li kev hloov pauv ncaj qha yog qhov yuam kev rookie. Qhov saum npoo tiav, cov hmoov tshauv tom qab hlawv, thiab cov residual polymers tag nrho cuam tshuam nrog lub plhaub ceramic sib txawv. Koj feem ntau xav tau txheej txheej thib ob lossis hloov kho thawj slurry dip kom kaw qhov chaw. Peb tau kawm los khiav cov ntawv pov thawj me me-qee zaum tsuas yog kaum lub plhaub-los hu rau hauv cov txheej txheem rau cov khoom siv tshiab lossis cov duab geometry ua ntej cog lus rau kev tsim khoom.
Qhov tiag 'ceev' nce qib, hauv kuv qhov kev xav, yog nyob rau hauv hybrid mus kom ze. Siv 3D luam ntawv los tsim cov qauv tswv rau cov cuab yeej silicone, los ntawm qhov uas koj tuaj yeem txhaj ntau cov ntaub ntawv luam tawm los yog soluble qauv luam. Qhov no txuas qhov sib txawv ntawm ib-tawm qauv nrawm thiab qhov xav tau rau me me-batch ntau lawm sib xws. Nws tsis tau ntxim hlub dua li cov kev ua haujlwm digital tag nrho, tab sis nws feem ntau txhim khu kev qha thiab raug nqi rau kev khiav ntawm 20-50 daim.
Kuv nco qab txog qhov project rau lub turbine tivthaiv hauv hlau qhov twg tus neeg siv xav tau 30 cov qauv ua haujlwm rau kev kuaj cav. Ntshiab 3D-printed qauv yuav tau txwv tsis pub kim. Peb luam tawm tus tswv, tsim cov pwm ceev-tig urethane, thiab txhaj cov qauv qis-melt-point alloy. Nws ntxiv ib lub lis piam mus rau pem hauv ntej-kawg tab sis tau cawm ze li peb lub lis piam nyob rau hauv ib feem ntawm lub sij hawm luam ntawv thiab muab peb ntau npaum li zoo raws li lub plhaub-tsev cov yam ntxwv. Lub plhaub tuav, cov castings yog suab, thiab cov neeg tau txais lawv cov kev xeem series raws sij hawm. Qhov ntawd yog cov tswv yim sai peev casting.
Shell Building: The Make-or-break Phase
Qhov no yog qhov uas cov txheej txheem tau txais kev ntseeg siab lossis poob sib nrug. Kev ziab kom nrawm nrawm yog kev ntxias-siv cua txias, dehumidifiers, lossis txawm tias sov sov. Tab sis maj nws, thiab koj ntxiab ya raws lossis tsim tsis muaj zog laminations ntawm cov tsho loj. Lub plhaub yuav zoo zoo kom txog thaum nws tsoo lub qhov cub, ces nws tsis ua puas tsuaj. Peb tau tsiv mus rau cov chaw tswj hwm ib puag ncig nrog cov av noo thiab ntsuas kub. Nws suab yooj yim, tab sis qhov kev tswj hwm no tso cai rau peb los kwv yees luv luv ntawm lub sijhawm ziab khaub ncaws los ntawm 20-30% yam tsis muaj kev cuam tshuam kev ncaj ncees. Nws tsis yog flashy, tab sis nws siv tau.
Qhov kev xaiv ntawm stucco - cov xuab zeb refractory siv ntawm slurry dips - yog lwm qib hloov maj mam. Ib coarser, ntau angular stucco tuaj yeem tsim lub plhaub tuab sai dua, txo tus naj npawb ntawm cov tsho uas yuav tsum tau ua rau cov tuab tuab. Tab sis nws tseem tuaj yeem tsim qhov rougher sab hauv ntawm qhov casting. Rau ib feem uas yuav tsum tau ua kom zoo, koj yuav lo nrog finer stucco thiab txais ntau lub tsho loj. Tsis muaj noj su dawb; txhua qhov kev txiav txim siab txuag lub sijhawm muaj kev sib pauv ntawm lwm tus cwj pwm.
Rau complex alloys, xws li cov Nickel-raws li alloys QSY ua haujlwm nrog, lub plhaub chemistry nws tus kheej yog qhov tseem ceeb. Lub plhaub yuav tsum tiv taus qhov kub thiab txias dua yam tsis muaj kev cuam tshuam nrog cov hlau molten. Tus txheej txheem 'ceev' uas siv lub plhaub qauv tsim rau carbon steel yuav ua tsis tiav nrog superalloy. Lub plhaub yuav muag muag los yog tsim kev suav nrog. Yog li, txoj kev 'ceev' yuav tsum yog alloy-specific. Lawv ua hauj lwm mus sij hawm ntev nyob rau hauv tshwj xeeb alloys, raws li tau sau tseg nyob rau hauv lawv lub tuam txhab profile, txhais tau hais tias lawv yuav tsum tau tsim (thiab tej zaum yuav tiv thaiv) proprietary plhaub systems rau cov ntaub ntawv no.
Dewaxing thiab Burnout: Thermal Gauntlet
Qhov no yog kauj ruam ua yeeb yam. Ib txwm chav autoclaving ua haujlwm tab sis tuaj yeem qeeb rau cov qauv tuab. Flash dewaxing nyob rau hauv lub qhov cub kub kub yog sai dua tab sis imposes loj thermal shock ntawm lub plhaub. Peb tau muaj cov plhaub tau tshwm sim thaum lub wax nthuav dav heev. Qhov kev sib haum xeeb uas peb tau hais txog yog ob-theem mus kom ze: luv luv, qis-siab autoclave voj voog kom tshem tawm cov wax ntau, tom qab ntawd los ntawm kev tswj lub cub tawg kom tshem tawm cov seem thiab sinter lub plhaub. Nws tsis yog tib txoj kev ceev tshaj plaws, tab sis nws ua rau lub plhaub muaj sia nyob siab tshaj plaws rau cov duab geometry nyuaj.
Lub voj voog burnout yog lwm qhov chaw siav rau kev ua kom zoo. Lub hom phiaj yog tshem tawm tag nrho cov qauv seem yam tsis muaj kev ntxhov siab ntau dhau ntawm cov ceramic. Thermocouples muab tso rau hauv dummy shells pab daim ntawv qhia lub thermal gradient. Los ntawm kev txheeb xyuas cov ntaub ntawv no, peb tau tuaj yeem tsim cov ntu nrawm dua hauv cov cheeb tsam kub uas lub plhaub ruaj khov tshaj plaws, thiab qeeb qeeb los ntawm kev hloov pauv tseem ceeb. Nws shaved txog 25% ntawm peb lub sijhawm ua kom sov tag nrho. Nws yog cov ntaub ntawv-tsav hom ntawm 'ceev', tsis yog kwv yees.
Ua tsis tiav ntawm no yog kim. Lub plhaub tawg tau pom tom qab hlawv txhais tau tias koj tau poob txhua lub sijhawm thiab cov nqi nqis peev mus txog qhov ntawd - qauv, slurry, kev ua haujlwm, lub zog. Tias yog vim li cas qhov 'ceev' mindset yuav tsum suav nrog cov txheej txheem validation. Koj ua kom cov kauj ruam uas koj tuaj yeem tswj tau thiab ntsuas, thiab koj tawm buffers qhov twg muaj kev pheej hmoo siab.
Machining Integration: Qhov tseem ceeb kawg
Kev nqis peev nrawm nrawm tsis ua tiav thaum qhov ntu tau shaken tawm ntawm lub plhaub. Lub xeev as-cam khwb cia yuav luag ib txwm xav tau qee yam CNC machining-drilling, milling lub ntsej muag tseem ceeb, threading. Qhov no yog qhov uas cov saw hlau 'ceev' tuaj yeem tawg dua yog tias qhov casting tsis yog tsim los rau kev tsim khoom (DFM) txij thaum pib. Yog tias koj txuag tau ob lub lis piam ntawm casting tab sis tom qab ntawd xav tau peb lub lis piam ntawm kev ua haujlwm nyuaj, ntau lub axis machining vim tias cov datum tsis zoo lossis cov yam ntxwv tsis zoo, koj tau poob kev sib tw.
Kaw kev sib koom tes ntawm cov foundry thiab lub khw muag khoom yog qhov tseem ceeb. Ntawm kev ua haujlwm sib xyaw ua ke zoo li QSY, qhov twg casting thiab CNC machining nyob rau hauv ib lub ru tsev, qhov handoff yuav tsum seamless. Lawv tuaj yeem tsim cov txheej txheem casting nrog machining fixtures hauv siab, ntxiv cov khoom me me nyob rau hauv qhov chaw zoo, thiab xyuas kom meej tias cov alloy lub machinability raug txiav txim siab. Piv txwv li, ib qib ntawm stainless hlau tej zaum yuav cam khwb cia zoo nkauj tab sis yuav ua npau suav phem rau lub tshuab yog tias kev kho cua sov tsis tau tswj kom raug tom qab casting. Ib tus kws kho mob sib koom ua ke ua haujlwm txuas ntxiv mus.
Qhov kev ua tiav sai tshaj plaws uas kuv tau ua ib feem ntawm ib txwm koom nrog cov machinists hauv kev tshuaj xyuas thaum ntxov. Lawv tau taw qhia txog qhov hloov pauv me me uas yuav tso cai rau kev kho kom yooj yim dua, lossis hais kom tshem tawm ib txoj kab sib cais los tsim cov ntaub ntawv huv. Cov kev sib tham, tshwm sim pem hauv ntej, yog dab tsi ua rau tag nrho cov kav dej - los ntawm cov qauv digital mus rau tiav, cov khoom siv ua haujlwm - nrawm thiab txhim khu kev qha.
Xaus: Nws yog Philosophy, Tsis yog khawm
Yog li, tom qab tag nrho cov no, yog dab tsi ceev peev casting? Nws tsis yog ib qho cuab yeej koj yuav. Nws yog lub tswv yim ntawm kev ua kom zoo ntawm cov txheej txheem sib xyaw ua ke, txhawb nqa los ntawm cov ntaub ntawv sib sib zog nqus kev paub thiab kev txaus siab los khiav cov kev sim tswj (thiab lees txais qee qhov ua tsis tiav). Nws yog hais txog kev paub qhov twg koj tuaj yeem thawb thiab qhov twg koj yuav tsum ua siab ntev. Nws yog qhov sib txawv ntawm lub khw uas tsuas yog ua cov castings thiab ib qho uas muab cov kev daws teeb meem hauv lub sijhawm.
Cov tuam txhab uas ua qhov no zoo, cov uas muaj kaum xyoo ntawm cov ntaub ntawv taug qab hla ntau yam ntaub ntawv nyiam nrum hlau thiab tshwj xeeb alloys, tau khwv tau lawv ceev. Lawv tau tsim nws los ntawm kev sib sau, qee zaum mob, kev paub. Lawv tau kawm tias qhov tseeb nrawm yog hais txog kev txo tag nrho cov sij hawm txhuas mus rau qhov ua haujlwm, tsim nyog, tsis yog hais txog cov xuab moos uas hlau siv hauv pwm. Qhov ntawd yog lub hom phiaj tiag tiag, thiab nws nyuaj dua - thiab nthuav ntau dua - dua li nws suab.
