Thaum koj hnov 'kev nqis peev hauv tsev,' feem ntau lub siab dhia mus rau cov yeeb yaj kiab YouTube - ib tug txiv leej tub hauv lub chaw nres tsheb, yaj cov dej qab zib nrog lub cub tawg hauv tsev. Qhov ntawd yog qhov zoo rau trinkets, tab sis nws yog lub ntiaj teb nyob deb ntawm qhov tseeb thiab cov khoom siv tshawb fawb xav tau rau kev ua haujlwm, cov khoom thauj khoom. Qhov sib txawv tiag tiag hauv kev nkag siab, kuv tau pom, yog nyob nruab nrab ntawm cov txheej txheem khoom siv tes ua thiab cov kev qhuab qhia hauv kev lag luam uas yuav tsum tau ua ib yam dab tsi uas tsis yog zoo li ib feem hlau, tab sis ua tau zoo li ib txwm. Nws tsis yog hais txog lub ncuav; nws yog hais txog txhua yam uas tshwm sim ua ntej thiab tom qab.
Lub Plhaub Game: Ntau tshaj li Drip thiab Drip
Wb tham txog lub plhaub. Cov neeg coob coob DIY feem ntau siv cov plaster-silica yooj yim sib xyaw, uas yog qhov chaw pib ua tsis ncaj ncees lawm rau txhua yam tshaj li kev siv kho kom zoo nkauj. Hauv kev teeb tsa kom raug, zoo li qhov peb tau ua kom zoo dua ntawm Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), lub plhaub yog ntau txheej engineering thaiv. Nws pib nrog lub tsho loj - zoo heev zircon hmoov los yog ib yam dab tsi zoo sib xws - kom ntes cov ntsiab lus saum npoo. Tom qab ntawd koj tsim nrog coarser refractory xuab zeb. Txhua txheej xav tau kev ziab kom qhuav; Kev tswj cov av noo yog qhov tseem ceeb. Kuv tau pom kev sim qhov twg rushed kom qhuav ua rau lub plhaub tawg thaum dewaxing, tag nrho poob. Lub plhaub tsis yog pwm xwb; Nws yog thermal shock absorber thaum lub sij hawm nchuav.
Qhov no yog qhov chaw xaiv cov khoom siv rau lub plhaub txuas ncaj qha rau cov hlau koj tab tom casting. Pouring high-temperature npib tsib xee-raws li alloy rau hauv lub plhaub tsim los rau qis-melt aluminium? Kev puas tsuaj. Lub plhaub yuav tsum muaj qhov siab dua sintering thiab thermal stability. Peb tuav cov kab slurry cais rau cov tsev neeg sib txawv vim tias kev sib kis kab mob tuaj yeem ua rau cov refractoriness. Nws yog qhov nthuav dav feem ntau saib tsis tau thaum tib neeg xav tias lawv tuaj yeem siv ib daim ntawv qhia 'universal' slurry.
Cov txheej txheem stuccoing - ntuav coarse xuab zeb mus rau ntub slurry - yog lwm yam txuj ci. Kev siv phau ntawv ua rau lub plhaub tsis sib xws thiab qhov tsis muaj zog. Peb siv lub txaj fluidized rau txawm daim ntawv thov stucco. Kuv nco qab ib qhov project thaum ntxov ntawm qhov uas peb muaj 30% tsis ua hauj lwm tus nqi ntawm stainless hlau valve tivthaiv vim phau ntawv stuccoing inconsistencies. Hloov mus rau automated systems tsis yog hais txog efficiency; nws yog hais txog kev tshem tawm qhov hloov pauv tseem ceeb.
Tus Qauv Wax: Qhov twg Dimensional Control tiag tiag pib
Txhua tus neeg tsom mus rau cov hlau, tab sis cov qauv siv quav ciab yog thawj feem. Nws qhov tseeb qhov tseeb thiab qhov chaw tiav ncaj qha hloov mus. Kev txhaj tshuaj tsis haum rau cov quav ciab - qhov kub thiab txias, siab, tuav lub sijhawm - raug txiav txim los ntawm ntu geometry. Ib ntu nyias-walled xav tau kev teeb tsa sib txawv dua li lub hub tuab. Kev siv cov wax tsis ncaj ncees lawm (yog, muaj ntau ntau) tuaj yeem ua rau cov kab noj hniav shrinkage hauv tus qauv nws tus kheej, uas tom qab ntawd dhau los ua blobs ntawm qhov kawg casting.
Peb ib zaug muaj ib tug neeg xa peb CAD qauv rau ib tug complex turbine hniav. Cov qauv siv quav ciab tuaj tawm zoo nkauj. Tab sis thaum peb tsiv mus rau ntau lawm, peb pib pom kev hloov maj mam warpage. Tus neeg ua txhaum? Lub rooj cob qhia kub tau nce raws caij nyoog, hloov cov quav ciab qhov txias txias hauv qhov tuag. Nws yuam kom peb ua raws li kev tswj hwm huab cua tswj cov quav ciab chav. Ib puag ncig 'hauv tsev' yog qhov tsis tuaj yeem ua kom ruaj khov rau qib no, uas yog vim li cas hobbyist cov txiaj ntsig tau sib txawv.
Kev sib dhos ntawm cov qauv siv quav ciab rau ntawm 'ntoo' yog lwm kauj ruam tseem ceeb. Lub kaum sab xis thiab junctions yuav tsum tau tsim los tso cai rau cov hlau ntws kom zoo thiab txo qis kev kub ntxhov. Kev tsim lub rooj vag tsis zoo yog tus lej ib qho ua rau sab hauv porosity uas tsis kuaj pom kom txog thaum machining. Peb ua kev simulation simulation tam sim no rau txhua qhov kev tsim tshiab, tab sis tau ntau xyoo nws tau sim thiab ua yuam kev - thiab qhov tsis raug yog cov khoom kim heev ntawm cov khoom seem.
Cov ntaub ntawv yog huab tais (Thiab feem ntau tsis to taub)
'Stainless hlau' tsis yog ib yam. 304 stainless behaves txawv kiag li nyob rau hauv peev casting tshaj 316 los yog 17-4 PH. Cov tom kawg yuav tsum tau daws cov kev kho cua sov thiab kev laus. Yog koj ua tsev peev casting, tej zaum koj yuav daig nrog txhua yam uas koj tuaj yeem yaj, uas tsis paub muaj pes tsawg leeg. Rau qhov tiag, koj xav tau cov ntaub ntawv pov thawj. Peb muab peb cov alloys los ntawm cov mills tshwj xeeb thiab ua kom lawv sib cais. Kev siv yaj yog tswj tau: deoxidizers, yaj kub, tuav lub sijhawm. Pouring kub dhau tuaj yeem ua rau cov qoob loo loj hlob; txias dhau yuav ua rau mistrus.
Ua hauj lwm nrog tshwj xeeb alloys xws li cobalt-based lossis nickel-based superalloys yog lwm pab koomtes. Lawv feem ntau nqus melted thiab nchuav los tiv thaiv oxidation. Koj ua tsis tau li ntawd nyob rau hauv lub qhov cub qhib cua. Cov ntaub ntawv no yog vim li cas kev lag luam xws li aerospace thiab kev kho mob cia siab rau cov chaw tsim khoom nrog cov chaw tswj hwm, tsis yog chaw nres tsheb. Cov khoom no yog nyob ntawm qhov kev tswj xyuas ntawd.
Kev kho cua sov tom qab casting yog ib feem ntawm cov khoom siv taug kev. Nws tsis yog ib qho kev xaiv 'tiav kov.' Rau ntau qib steel thiab alloy, nws txhais cov khoom siv kho tshuab kawg. Hla nws los yog ua nws tsis raug (qhov kub thiab txias tsis zoo, lub sij hawm ntub dej, lossis quench nruab nrab) tso koj nrog ib feem uas yuav dhau qhov kev kuaj pom tab sis yuav ua tsis tiav hauv kev ntxhov siab. Peb muaj ib pawg ntawm cov caj npab ib zaug uas dhau tag nrho cov kev kuaj xyuas qhov ntev tab sis snapped thaum sib dhos. Qhov teeb meem tau taug qab mus rau qhov cuam tshuam austenitizing lub voj voog thaum kho cua sov.
CNC Machining: Lub Koom Haum Tsim Nyog rau Casting
Tsawg heev peev cam khwb cia qhov chaw yog 'net-shape.' Qhov tseem ceeb sealing nto, ntsia liaj qhov rooj qhov, thiab precision interfaces yuav luag ib txwm xav tau machining. Qhov no yog qhov kev sib koom ua ke tseem ceeb. Ntawm QSY, muaj CNC machining hauv tsev tsis yog qhov yooj yim xwb; nws yog ib lub voj zoo. Cov machinists pub rov qab cov ntaub ntawv rau lub foundry. Yog tias lawv niaj hnub pom qhov chaw nyuaj lossis qhov porosity nyob rau hauv ib qho chaw tshwj xeeb ntawm lub casting, peb tuaj yeem kho qhov rooj lossis qhov kub thiab txias rau cov pwm ntawd.
Txhim kho lub complex, as-cast geometry yog ib qho nyuaj. Koj yuav tsum tsim kom muaj kev txhim khu kev qha cov ntaub ntawv los ntawm kev ua nws tus kheej, uas qee zaum txhais tau tias ntxiv cov ntaub me me los yog cov yam ntxwv rau cov qauv siv quav ciab tshwj xeeb rau qhov chaw ua haujlwm. Qhov no yog kev sib koom tes tsim rau manufacturability. Yog tias qhov casting thiab machining tau ua tiav hauv cov khw sib cais, qhov kev tawm tswv yim no tawg, ua rau lub sij hawm txhuas ntev dua thiab tsis lees paub ntau dua.
Kuv yuav taw tes rau peb lub vev xaib, tsi.com, tsis yog rau kev nce qib, tab sis yog ib qho piv txwv ntawm kev sib koom ua ke. Daim ntawv teev muaj peev xwm muaj-ntau-axis milling, tig-tsis cais los ntawm peb txoj haujlwm casting. Nws yog lwm ib nrab ntawm cov txheej txheem. Ib feem yuav yog peev cam khwb cia kom tau cov txheej txheem sab hauv, tom qab ntawd CNC machined kom ua tiav lub ntsej muag flange. Sim ua kom tiav txhua yam los ntawm machining ib leeg yuav txwv tsis pub kim.
Kev Tshawb Xyuas Kev Muaj Peev Xwm: Thaum Lub Tsev Ua Tau Raws Li Kev Lag Luam
Yog li, koj puas tuaj yeem ua qhov peev txheej hauv tsev? Rau prototypes, geometry yooj yim, thiab qhov tsis tseem ceeb hauv cov ntaub ntawv paub, tej zaum. Tab sis muaj ib lub pob zeb uas koj ntaus thaum koj xav tau qhov sib xws, cov ntaub ntawv pov thawj, thiab kev ntseeg siab ntawm cov neeg kho tshuab. Cov txheej txheem-kev tswj hwm huab cua, kev tswj xyuas slurry, kev txhawb nqa metallurgical lab, tswj kev kho cua sov-yog qhov koj tau them nyiaj tiag tiag nrog lub chaw tsim khoom.
Txoj kev ua tsis tau zoo uas kuv pom yog underestimating qauv thiab plhaub engineering. Cov neeg nchuav nyiaj rau hauv qhov cub zoo tab sis siv cov khoom siv tsis zoo thiab cov pwm plaster yooj yim. Qhov tshwm sim yog ib qho casting uas zoo nkaus li zoo tab sis muaj zais shrinkage lossis nto nplai uas ua rau nws siv tsis tau. Cov pwm yog lub hauv paus.
Tom qab peb lub xyoos dhau los hauv daim teb no, zaj lus qhia yog tias peev casting yog ib txoj saw ntawm ib puas txuas. Koj tuaj yeem muaj cov quav ciab zoo, lub plhaub zoo meej, tswj cov ncuav, thiab tseem ua rau nws tsis tsim nyog shakeout lossis kho cua sov. Nws yog ib qho txheej txheem uas xav tau kev hwm rau tag nrho cov saw hlau. Lub allure ntawm tsev peev casting yog to taub - qhov kev hloov ntawm wax rau hlau yog tej yam yees siv. Tab sis kev qhuab qhia uas hloov cov khawv koob ntawd mus rau hauv ib qho kev txhim khu kev qha engineering yog tsim los ntawm kev tswj hwm, feem ntau mundane, mloog mus rau ib txhiab cov ntsiab lus. Qhov ntawd yog qhov cais cov khoom siv tes ua los ntawm cov khoom uas ya, tsav, lossis ua kom lub cev muaj zog.
