Reducer Joint Silica Sol Investment Casting

Khoom Taw Qhia

Silica Sol Precision Casting

Qhov tseem ceeb ntawm silica sol precision casting yog siv cov khoom fusible raws li cov qauv, siv cov khoom siv refractory li pwm, thiab yaj cov qauv ua ntej pouring los ua pwm kab noj hniav. Thaum ntxov li 3000 xyoo dhau los, cov txheej txheem no tau siv los ua cov khoom siv tes ua. Thaum Tsov Rog Thoob Ntiaj Teb thib Ob, vim qhov kev xav tau ntawm kev lag luam tub rog, cov teb chaws xws li Tebchaws Meskas thiab Tebchaws Askiv tau siv peev txheej casting los tsim stator hniav rau turbojet xyaw, yog li thawb cov txheej txheem no mus rau hauv kev lag luam, thiab nws tau tsim tsis tu ncua. thiab txhawb rau ntau tshaj li ib nrab xyoo txhim kho. Silica sol peev casting muaj ntau txheej txheem ntau lawm, los ntawm wax pwm, pwm plhaub, thiab pouring, mus rau tu, nws yog ib tug nruj saw. Txhua qhov teeb meem hauv ib qho txuas yuav cuam tshuam ncaj qha rau qhov kawg casting zoo thiab zoo, thiab nws yog ib qho tsim nyog yuav tsum tau tshwj xeeb tshaj yog ntxiv dag zog rau kev tswj cov txheej txheem nrog kev tshawb fawb.

Plhaub ua txheej txheem

Reducer sib koom ua ke silica sol peev casting Qhov tseem ceeb ntawm lub plhaub-ua txheej txheem Ntawm tag nrho cov txheej txheem ntau lawm, siv quav ciab pwm tsim thiab pwm plhaub tsim yog ob txoj kev txuas uas cuam tshuam cov yam ntxwv ntawm peev casting nws tus kheej, thiab tshwj xeeb yuav tsum tau them nyiaj rau kev tshawb fawb. . Nyob rau hauv xyoo tas los no, thoob ntiaj teb kev nqis peev casting txheej txheem tau ua tiav zoo hauv kev tsim cov qauv siv quav ciab. Cov neeg tsim khoom tuaj yeem ua kom qhov tseeb qhov tseeb thiab qhov zoo ntawm cov qauv siv quav ciab los ntawm kev xaiv cov khoom pwm tsim nyog thiab siv cov txheej txheem niaj hnub. Nyob rau tib lub sijhawm, piv nrog cov txheej txheem tsim tom ntej ntawm kev nqis peev casting, wax pwm tsim yog tus kheej ywj pheej, thiab cov khoom tsis tsim nyog tuaj yeem raug tshuaj xyuas los ntawm kev tshuaj xyuas qhov muag thiab ntsuas qhov ntev, kom tsis txhob txuas ntxiv ntau lawm thiab nce kev poob. Thaum nkag mus rau hauv lub plhaub tsim cov txheej txheem, qhov zoo ntawm qhov chaw thiab qhov tseeb qhov tseeb hais txog qhov kawg ntawm qhov casting yog muab zais. Txog thaum lub casting raug ntxuav tawm, qhov kev hloov ntawm qhov zoo ntawm lub plhaub kab noj hniav tuaj yeem suav tias yog "lub thawv dub". Nws yog tsis yooj yim sua kom saib ncaj qha cov kev hloov nyob rau hauv nws loj thiab zoo. Tsuas yog los ntawm kev nkag siab txog kev sib raug zoo ntawm cov txheej txheem tsim khoom thiab qhov tsis xws luag ntawm lub plhaub kom meej meej tuaj yeem lav qhov kev tswj hwm ntawm tag nrho cov txheej txheem ntau lawm. Qhov tseem ceeb tshaj, lub plhaub yog cov kab noj hniav ncaj qha rau kev tsim cov casting, thiab nws qhov kev ua tau zoo thaum kawg cuam tshuam rau kev tsim cov kua hlau zoo. Yog li ntawd, ntau xim tau them rau lub plhaub-ua txheej txheem ntawm peev casting. Nyob rau ntawm lub rooj sib tham txhua xyoo ntawm American Investment Casting Association ICI, lub rooj sib tham tseem ceeb thoob ntiaj teb kev lag luam casting, kev tshawb fawb ntawm pwm plhaub ib txwm yog qhov chaw kub siab ntawm kev saib xyuas, thiab txog 1/3 ntawm cov ntaub ntawv muaj feem xyuam rau pwm plhaub, uas qhia txog cov pwm plhaub manufacturing tshuab Qhov tseem ceeb ntawm kev txhim kho rau kev nqis peev Casting. Hauv kev nqis peev casting plhaub-ua cov txheej txheem feem ntau siv thoob ntiaj teb, silica sol shells tuav txoj haujlwm tseem ceeb vim lawv qhov kev tiv thaiv ib puag ncig zoo, tab sis lawv kuj yuav tsum tau ntsib cov teeb meem ntawm kev sib tw ua lag luam hnyav: ntawm ib sab, lawv yuav tsum hloov mus rau qib siab dua. cov kev cai hauv aerospace thiab tub rog teb. Cov kev xav tau zoo ntawm qhov loj, thinner, thiab ntau dua castings; Ntawm qhov tod tes, rau ntau cov khoom siv pej xeem, ua kom luv luv ntawm lub voj voog ntau lawm thiab txhim kho kev lag luam teb kuj tau dhau los ua qhov tseem ceeb tshaj plaws.

Txoj kev loj hlob ntawm lub plhaub tshuab tso rau pem hauv ntej cov kev cai rau kev tsim kho tshiab silica sol

1. Ua tau raws li qhov yuav tsum tau ua ntawm cov peev txheej nyuaj rau silica sol shells

Txhawm rau tsim cov pob zeb loj, nyias-walled, thiab complex casting plhaub, ntawm ib sab, nws yog ib qho tsim nyog los daws cov teeb meem ntawm lub plhaub tsim muaj peev xwm, xws li cov khoom tsim nyog rau kev ua haujlwm ntawm lub plhaub loj, nrog rau cov khoom siv plhaub, cov khoom siv dewaxing, thiab lwm yam. Ntawm qhov tod tes, lub plhaub kawg muaj qhov xav tau ntau dua ntawm lub zog, deformation tsis kam, thiab qhov tseeb qhov tseeb, tshwj xeeb tshaj yog lub zog thiab deformation tsis kam ntawm lub plhaub yog lub hauv paus rau casting loj peev castings. Tsuas yog los ntawm kev ua kom ntseeg tau qhov kev ua tau zoo ntawm lub plhaub thiab ua cov castings raug tsim tuaj yeem ua qhov tseeb qhov tseeb ntawm cov castings ntxiv. Lub zog ntawm silica sol plhaub tuaj yeem muab faib ua qhov qub-kub lub zog, lub zog kub-kub, thiab lub zog seem raws li qhov sib txawv ntawm cov cua sov. Lub zog kub ib txwm yog los xyuas kom meej lub plhaub ntawm lub plhaub thaum lub plhaub ua thiab dewaxing txheej txheem. Lub siab kub lub zog yog los xyuas kom meej tias lub plhaub tsis puas thaum lub sij hawm firing thiab pouring txheej txheem. Lub zog kub kub yog qhov tseem ceeb, tab sis nws tau txiav txim siab los ntawm cov kev sim uas tom qab kub kub calcination saum 950 degree, lub plhaub lub zog ntawm silica sol tuaj yeem ncav cuag 7 ~ 14MPa, tshaj 6 ~ 8MPa ntawm ethyl silicate, uas tuaj yeem ua tau raws li qhov yuav tsum tau ua. kev peev casting txheej txheem. Ntawm qhov tsis sib xws, nrog kev nce siab ntawm qhov kub thiab txias, lub zog seem kuj nce ntxiv, uas ua rau nws nyuaj rau kev ntxuav lub plhaub casting thiab yuav tsum tau txo kom tsim nyog. Piv nrog rau ethyl silicate, qhov tsis muaj zog ntawm silica sol plhaub yog tias lub zog ntawm chav tsev kub yog qhov tsawg, yog li thaum lub plhaub loj dua thiab nyuaj, nws yooj yim ua rau tawg lossis deformation ntawm lub plhaub thaum lub plhaub ua thiab dewaxing, cuam tshuam. qhov kawg ntawm qhov zoo ntawm qhov casting thiab qhov tseeb qhov tseeb. Yog li ntawd, kev txhim kho chav tsev kub lub zog ntawm silica sol tau dhau los ua ib txoj haujlwm tseem ceeb los ua kom nrov thiab txhim kho silica sol plhaub tshuab, thiab nws kuj yog lub hom phiaj tseem ceeb ntawm kev tshawb fawb silica sol tshiab.

2. Kev txhim kho ntawm peev casting efficiency yuav tsum tau txhim kho silica sol

Piv nrog rau qhov loj loj nyias-walled castings, cov khoom siv pej xeem muaj qis dua rau kev ua haujlwm zoo. Txawm li cas los xij, rau qhov kawg, qhov teeb meem ntawm shortening lub voj voog ntau lawm thiab txhim kho kev tsim khoom ua tau zoo dua. Cov txheej txheem gelation ntawm cov silica sol zoo tib yam feem ntau yog nyob ntawm lub cev qhuav dej thiab ziab ntawm silica sol, uas yuav siv sij hawm ntev dua li cov tshuaj ethyl silicate hardened. Lub plhaub ethyl silicate tuaj yeem ua kom tawv hauv li 2 teev rau txhua txheej ntawm ammonia kom qhuav, thaum kawg hardening ntawm silica sol feem ntau yuav siv sij hawm ntau tshaj 12 teev, thiab nws yuav siv sij hawm ntev rau qee qhov sib sib zog nqus qhov thiab lwm yam nyuaj-kom qhuav. Nyob rau tib lub sijhawm, txij li cov peev txheej casting pwm plhaub yuav tsum tau tsim nyob rau hauv cov khaubncaws sab nraud povtseg, txhua txheej yuav tsum tau ua kom qhuav kom ntseeg tau tias lub plhaub qis yuav tsis ua rau muaj teeb meem rov qab-melting thiab poob tawm thaum lub txheej yog dipped nyob rau hauv lub plhaub. txheej nws tus kheej, thiab cov dej noo yuav tsau rau hauv lub plhaub pwm qhuav hauv, ua rau lub voj voog kom qhuav tag nrho ntev. Nws yog ib daim duab schematic ntawm lub voj voog ntau lawm ntawm silica sol plhaub peev castings feem ntau. Reducer sib koom ua ke silica sol peev casting plhaub-ua lub sij hawm tso nyiaj rau ntau tshaj 50 feem pua ​​ntawm tag nrho cov casting ntau lawm voj voog. Txhawm rau txo lub sijhawm xa khoom ntawm cov khoom, shortening lub plhaub-ua voj voog yog qhov txuas tseem ceeb ntawm qhov teeb meem. Cov yam tseem ceeb ua kom luv luv lub voj voog ua lub plhaub tuaj yeem muab faib ua ob yam: sab hauv thiab lwm yam. Internal yam tseem ceeb yog cov yam ntxwv ntawm cov binder, thiab lwm yam tseem ceeb yog cov ziab qhuav.

Peb muab kev sib koom ua ke kev tsim kho thiab ib qho kev pabcuam customized los ntawm kev tsim pwm rau precision casting ntau lawm thiab tau cog lus los muab cov khoom zoo precision casting rau Tuam Tshoj txoj kev lag luam high-end manufacturing. Yog tias koj muaj lus nug txog precision casting thiab precision casting, thov nrog peb!

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