Koj hnov 'poob ciab casting' thiab feem ntau lub siab dhia ncaj qha mus rau cov kos duab thaum ub los yog cov hniav nyiaj hniav kub zoo nkauj. Qhov ntawd yog thawj qhov kev xav tsis zoo. Nyob rau hauv lub industrial realm, nws yog lub caj qaum ntawm peev casting, txheej txheem uas precision raws li ntim, thiab qhov twg 'poob ciab' ib feem tsuas yog qhib txoj cai nyob rau hauv ib tug ntev dua, qias neeg, thiab ntau technically xav tau kev ua si. Nws tsis yog tsuas yog ua cov pwm; Nws yog hais txog kev tswj hwm tag nrho cov saw hlau los ntawm cov qauv siv quav ciab mus rau qhov ua tiav machined ib feem, qhov twg qhov tsis zoo ntawm thawj kauj ruam tuaj yeem khawb tag nrho cov khoom tom qab lub lis piam ua haujlwm.
Lub Tsev Wax: Qhov twg Nws Pib Txhua Yam (Thiab tuaj yeem mus tsis ncaj ncees lawm)
Lub chav siv quav ciab yog qhov yooj yim deceptively. Nws yog txhua yam hais txog qhov kub thiab txias, tab sis ua kom lawv zoo yog qhov xav tau. Cov wax tsis yog ib qho khoom siv xwb; Nws yog feem ntau sib xyaw, nrog cov yam ntxwv sib txawv. Peb siv cov hloov kho paraffin-based compound rau feem ntau cov hlau. Yog hais tias lub injector kub dhau lawm, cov quav ciab txias maj mam, ua rau cov kab noj hniav shrinkage lossis distortion. Txias txias heev, thiab koj tau txais cov kab ntws los yog ua tsis tiav, tshwj xeeb tshaj yog nyob rau hauv nyias ntu. Kuv tau pom cov kws tshaj lij tshiab tsim qhov zoo li cov qauv siv quav ciab zoo meej, tsuas yog rau lawv los tsim kev ntxhov siab sab hauv tom qab 24 teev ntawm lub khib. Qhov ntawd yog qhov ua tsis tiav uas koj tsis pom txog thaum lub plhaub ceramic tau tsim thiab cov hlau tau nchuav, nkim txhua yam.
Kev sib dhos ntawm cov qauv siv quav ciab mus rau hauv nruab nrab lub rooj vag system - 'ntoo' - yog lwm qhov kev txawj tes tseem ceeb. Nws zoo li gluing qauv ua ke, tab sis lub kaum sab xis thiab kev sib koom ua ke dictate hlau ntws. Kev sib koom ua ke tsis muaj zog tuaj yeem ua rau 'khiav tawm' thaum lub sijhawm nchuav. Peb ib zaug muaj batch rau lub twj tso kua mis impeller qhov twg me ntsis misalignment nyob rau hauv cov ntoo sib dhos ua rau turbulent filling. Cov castings zoo li zoo, tab sis X-ray qhia tawm cov porosity nyob rau hauv lub vanes. Tag nrho cov khoom raug tsis lees paub. Qhov ntawd yog tus nqi zais ntawm kev sib sau ua ke rushed.
Cov kos duab tiag tiag yog nyob rau hauv cov quav ciab nws tus kheej. Rau cov kev sib txuas sab hauv, zoo li cov hauv cov hniav turbine lossis cov qauv kev kho mob cog lus, peb yuav siv cov wax core soluble. Koj tuaj yeem tsim cov tub ntxhais, sib sau ua ke lub ntsiab wax qauv nyob ib ncig ntawm nws, tsim lub plhaub ceramic, thiab tom qab ntawd siv cov dej kub los yog cov kuab tshuaj da dej kom yaj cov core wax ua ntej lub ntsiab dewaxing theem. Nws yog ib qho yooj yim sib npaug - lub hauv paus ciab yuav tsum yaj tawm huv si yam tsis muaj softening lub ntsiab qauv siv quav ciab. Nws yog ib qho tshwj xeeb, thiab tsis yog txhua lub khw tau txais nws txoj cai tas li.
Lub Tsev Plhaub: Ceramic Dance
Dipping tsob ntoo siv quav ciab rau hauv lub hauv paus ceramic slurry tsis yog dunk; nws yog cov txheej txheem tswj. Thawj lub tsho tiv no, lub ntsej muag lub tsho, siv cov zircon hmoov zoo heev los yog silica hmoov. Qhov no yog qhov txhais tau tias qhov kawg ntawm cov hlau kawg. Txhua plua plav lossis impurity ntawm no tau raug ntes mus ib txhis ntawm qhov chaw casting. Lub slurry viscosity raug tshuaj xyuas ntau zaus hauv ib hnub - nws thickens li cov khoom evaporates thiab xav tau thinning.
Tom qab slurry dip, nws tam sim ntawd mus rau hauv lub txaj fluidized ntawm ntxhib, angular refractory xuab zeb - feem ntau fused silica rau thawj ob peb lub tsho loj. Cov txheej txheem stuccoing no tsim cov khoom siv tseem ceeb ntawm cov khaubncaws sab nraud povtseg. Lub rhiab heev yog poob, xuab zeb, qhuav. Rov ua dua. Kev ziab ib puag ncig yog qhov tseem ceeb: tswj cov av noo thiab kub. nrawm dhau, thiab lub plhaub tuaj yeem tsim micro-tawg; qeeb dhau, thiab koj lub sijhawm ntau lawm stalls. Peb tsom rau 7 mus rau 9 lub tsho loj rau feem ntau cov hlau castings, tsim lub plhaub txog 6-8 hli tuab. Nws yuav tsum muaj zog txaus los tiv thaiv lub autoclave dewaxing tab sis permeable txaus kom tso cai rau cov roj khiav tawm thaum lub sij hawm nchuav.
Qhov kawg ziab, lossis 'hardening,' ntawm lub plhaub ua tiav yuav siv sij hawm tsawg kawg 24 teev. Koj tsis tuaj yeem maj nws. Lub plhaub uas xav tias qhuav rau sab nraud tuaj yeem tuav cov dej noo sab hauv. Thaum lub sij hawm kub-kub dewaxing (peb siv lub siab-siab chav autoclave), uas daig noo noo tig mus rau chav tam sim ntawd, thiab pop-koj tau lub plhaub tawg los yog tawg. Kuv tau qhib lub autoclave kom pom ib tsob ntoo tawg tag, cov khoom siv hluav taws xob nyob txhua qhov chaw. Qhov ua rau? Ib lub cav ziab kom qhuav tsis tiav rau ib pawg, thawb dhau vim lub sijhawm kaw nruj. Ib zaj lus qhia raug nqi.
Burnout, Pouring, thiab Moment of Truth
Tom qab dewaxing, cov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. Qhov no tsis yog tsuas yog hlawv tawm cov khoom seem; Nws sinters cov ceramic, fusing cov hais ua ke rau hauv ib tug muaj zog, monolithic pwm. Qhov kub ramp-up yog meej. Kev txhoj puab heev, thiab thermal shock yuav tawg lub plhaub. Peb feem ntau tuav ntawm ib ncig ntawm 1000 ° C rau ob peb teev, nyob ntawm seb cov hlau yuav tsum tau nchuav. Lub plhaub yuav tsum tau nchuav thaum tseem kub - feem ntau saum 500 ° C. Ncuav rau hauv lub plhaub txias ua rau cov mistrus thiab txias kaw. Lub sijhawm nruab nrab ntawm qhov cub thiab qhov chaw tso dej yog qhov sib koom ua las voos.
Lub ncuav nws tus kheej yog visceral. Rau cov hlau tsis muaj steel zoo li 304 lossis 316, lossis cov hlau kub kub zoo li Inconel, qhov cub kub tuaj yeem tshaj 1600 ° C. Koj tab tom saib cov hlau ntws, qhov nce ntawm cov hlau hauv lub khob ncuav. Lub rooj vag system tsim lub lis piam dhau los hauv wax yog tam sim no ua nws txoj haujlwm nkaus xwb. Lub rooj vag tsim tau zoo ua rau cov pwm ua kom zoo, los ntawm hauv qab mus rau hauv qab, txo qis turbulence thiab oxide tsim. Ib qho kev tsim tsis zoo yuav txaws hlau, ntxiab huab cua thiab tsim kom muaj kev sib koom ua ke. Qee zaum koj tuaj yeem hnov qhov txawv - qhov nyob ntsiag to, nce nws siab piv rau qhov tsis sib haum xeeb.
Shakeout tshwm sim tom qab cov hlau tau solidified thiab txias. Ceramic plhaub yog tawg los ntawm mechanical vibration. Qhov no yog qhov uas koj pom cov khoom nyoos casting thawj zaug, tseem txuas nrog nws lub rooj vag hlau. Nws yog lub sijhawm ntawm qhov tseeb, tab sis tsis yog qhov kawg. Kev tshuaj xyuas saum npoo feem ntau qhia pom thawj qhov kev ua tiav lossis tsis ua tiav: zoo hlau rov ua dua, lossis qhov tsis xws luag xws li fins (los ntawm lub plhaub tawg), ntxhib saum npoo (los ntawm lub ntsej muag ntxhib), lossis pom shrinkage. Rau ib lub tuam txhab xws li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nrog peb xyoo caum hauv plhaub molding thiab peev casting, theem no yog qhov uas lawv cov txheej txheem tswj yog validated. Lawv tsom mus rau cov ntaub ntawv xws li cobalt tshwj xeeb thiab npib tsib xee-raws li alloys xav tau kev tswj nruj dua nyob rau hauv cov theem ua ntej, vim tias cov hlau no tsis tshua muaj kev zam txim ntawm lub plhaub tsis xws luag lossis nchuav ua yuam kev ntau dua li cov qauv cam khwb cia hlau.
Tom qab Casting: Qhov twg Casting ntsib Machining
Lub as-cast ib feem tsis tshua muaj qhov kawg. Qhov no yog lub ntsiab lus tseem ceeb. Poob ciab casting tau txais koj 'ze-net-zoo,' tab sis tseem ceeb cuam tshuam yuav luag txhua zaus yuav tsum tau ua haujlwm. Lub rooj vag kaw lus raug txiav tawm, feem ntau yog siv cov hlua khi los yog lub log abrasive rau cov khoom me me, lossis cov plasma arc rau cov loj dua. Tom qab ntawd nws mus rau CNC milling lossis tig. Lub casting yuav tsum tau tsim nrog machining nyiaj-cov khoom siv ntxiv rau ntawm qhov chaw tshwj xeeb. Tau txais qhov nyiaj pub dawb no tsis raug, thiab koj tawm ntawm cov tawv nqaij uas tsis tuaj yeem ua rau ntawm qhov chaw sib khi lossis koj txiav rau hauv qhov tsis muaj dab tsi lossis suav nrog zais cia hauv qab ntawm qhov chaw.
Qhov no yog qhov kev ua haujlwm sib xyaw ua ke qhia nws tus nqi. Ntawm QSY, muaj ob qho tib si casting thiab CNC machining nyob rau hauv ib lub ru tsev yog ib tug loj kom zoo dua. Cov machinists muab cov lus teb rau lub foundry. Piv txwv li, yog tias lawv tsis tu ncua pom cov tawv nqaij ntawm ib qho flange thaum drilling, nws yuav qhia tau hais tias qhov teeb meem cua txias hauv zos lossis cov slag suav nrog los ntawm lub ncuav. Cov lus teb kaw-loop no yog qhov tseem ceeb rau kev txhim kho cov txheej txheem. Nws txav kev tswj tau zoo los ntawm kev tshuaj xyuas dawb huv mus rau kev tiv thaiv nquag.
Peb machined ib series ntawm valve lub cev nyob rau hauv duplex stainless hlau. Cov castings dhau qhov pom thiab qhov ntsuas qhov ntsuas. Txawm li cas los xij, thaum lub sijhawm ua haujlwm ntawm CNC tshuab dhos, lub cuab yeej yuav maj mam tham thiab hnav ntau dhau ntawm ib qho chaw tshwj xeeb ntawm txhua qhov chaw. Nws tau dhau los ua qhov sib txawv me me hauv cov txheej txheem plhaub ziab uas ua rau me ntsis denser, nyuaj txheej ceramic hauv cheeb tsam ntawd, uas ua rau kom txias txias thiab qhov chaw hloov pauv hauv cov hlau microstructure. Qhov kho tsis nyob rau hauv machining tsis; nws tau rov qab rau hauv chav ziab khaub ncaws, standardizing airflow nyob ib ncig ntawm cov ntoo siv quav ciab. Yog tsis muaj qhov kev sib koom ua ke, koj tsuas yog ua kom hlawv los ntawm cov cuab yeej txiav thiab cem cov khoom.
Kev xaiv cov khoom siv: Nws tsis yog hais txog cov hlau xwb
Thaum tib neeg tham cov ntaub ntawv hauv casting, lawv tsom rau cov hlau: cam khwb cia hlau, carbon hlau, stainless, cov kab txawv alloys. Tab sis cov ntaub ntawv sib tham pib ua ntej. Cov qauv siv quav ciab yuav tsum sib haum nrog cov ceramic slurry. Cov ceramics yuav tsum yog chemically inert rau cov hlau molten. Pouring ib reactive hlau zoo li titanium los yog high-aluminium alloy yuav tsum tau kiag li txawv ceramic systems (feem ntau yttria-raws li) dua pouring hlau. Kev siv cov refractory tsis ncaj ncees lawm ua rau muaj tshuaj lom neeg ntawm qhov sib cuam tshuam, ua rau lub ntsej muag ua tiav thiab ua rau lub plhaub tsis ua haujlwm.
Rau cov nickel thiab cobalt-based superalloys QSY feem ntau ua haujlwm nrog, thermal expansion yam ntxwv ntawm lub plhaub ceramic yog qhov tseem ceeb. Cov alloys yog nchuav rau ntawm qhov kub thiab txias thiab muaj cov cwj pwm tshwj xeeb solidification. Lub plhaub yuav tsum tiv taus cov thermal stress tsis muaj cracking los yog reacting, thiab nws yuav tsum cia li txaus txwv los mus tiv thaiv casting distortion tab sis tsis ntau heev uas nws ua rau kub tearing. Nws yog ib qho kev sib npaug txhais los ntawm cov khoom siv science, tsis yog khoom siv tes ua xwb.
Txawm nyob rau hauv steel, qib tseem ceeb rau kev teeb tsa. Cov hlau tsis tshua muaj carbon zoo li 1020 yog cov kua thiab yooj yim rau cam khwb cia tab sis tuaj yeem muag muag rau machining. Cov pa roj carbon siab lossis cov cuab yeej hlau yog qhov nyuaj dua los nrum tsis tawg tab sis tuav ib ntug. Txhua qhov kev hloov pauv ntawm cov ntaub ntawv txhais tau hais tias rov mus xyuas qhov kev txhaj tshuaj wax, lub plhaub ziab lub sij hawm, lub voj voog kub hnyiab, thiab qhov kub thiab txias. Tsis muaj daim ntawv qhia universal. Qhov no yog cov ntaub ntawv khaws tseg, feem ntau tsis muaj ntaub ntawv, kev paub uas cais lub khw ua haujlwm los ntawm tus kws tshaj lij tiag tiag. Koj tuaj yeem pom qee qhov ntawm lawv txoj hauv kev rau cov khoom siv-txheej txheem kev sib koom ua ke piav qhia hauv lawv cov txheej txheem piav qhia ntawm lawv qhov chaw, https://www.tsingtaocnc.com, uas qhia txog qhov ua tau zoo, tsis yog kev ntseeg siab, kev nkag siab ntawm thaj chaw.
Thaum kawg: Nws yog System
Yog li, poob ciab casting, los yog peev casting, yeej tsis yog ib kauj ruam xwb. Nws yog ib qho kev sib txuas. Ib qho tsis zoo hauv kev txhaj tshuaj ciab yuav tsis tshwm sim txog thaum machining. Lub hiccup nyob rau hauv lub plhaub ziab tuaj yeem ua rau lub ncuav. Ib tug zoo nkauj gating tsim yuav negated los ntawm ib tug tsis zoo xam pouring kub. Kev zoo nkauj thiab kev ntxhov siab ntawm nws nyob hauv qhov kev sib tshuam. Koj tsis tau tswj cov txheej txheem; koj tab tom tswj cov saw ntawm cov xwm txheej uas txhua qhov txuas yog nyob ntawm lub zog ntawm yav dhau los.
Lub hom phiaj tsis yog kom ua tiav kev ua yeeb yam zoo tshaj plaws hauv ib daim - txawm hais tias ua tau. Hauv cov ntsiab lus kev lag luam zoo li QSY's, lub hom phiaj yog rov ua dua, txhim khu kev qha, thiab kev lag luam muaj txiaj ntsig zoo hla ntau pua lossis ntau txhiab qhov chaw. Nws yog hais txog kev tswj cov variables nyob rau hauv ib tug txheej txheem tag nrho ntawm lawv. Cov wax ploj, tab sis cov lus qhia los ntawm txhua qhov kev ua tsis tau zoo, txhua qhov chaw tsis zoo, txhua qhov kev xav tsis thoob, yog dab tsi tau muab tso rau hauv lub khw cov txheej txheem kev khiav haujlwm. Qhov ntawd yog qhov tso tawm tiag tiag ntawm cov txheej txheem: tsis yog cov khoom siv hlau xwb, tab sis kev paub ua kom zoo.
Taug kev los ntawm qhov chaw tsim khoom, koj pom lub voj voog nyob txhua qhov chaw: cov khib nyiab khib nyiab tau sib sau ua ke, slurry tanks bubbling, furnaces roaring, CNC tshuab humming. Nws ntxhov, nws kub, thiab nws yog tag nrho ntawm kev txiav txim hu. Daim phiaj xwm tsuas yog qhov pib xwb. Qhov seem yog txhua yam hais txog kev xav ntawm cov quav ciab, qhov zoo ntawm slurry, lub suab ntawm lub ncuav, thiab cov lus tawm tswv yim los ntawm lub khw muag khoom. Qhov ntawd yog qhov tseeb ntawm qhov poob ciab casting tawm ntawm nplooj ntawv phau ntawv thiab mus rau hauv pem teb Hoobkas.
