1) Xaiv cov centrifugal casting ceev
Thaum xaiv qhov ceev cov pwm centrifugal, ob lub ntsiab lus tseem ceeb yuav tsum tau xav txog: (1) Kev khiav ceev ntawm lub pwm centrifugal yuav tsum xyuas kom tsawg tias cov roj ua kom muaj xim rau lub voj voog tam sim ntawd tom qab nkag pwm thiab tig ncig lub thooj ; (2) Siv tag nrho kev siv centrifugal force Lub luag hauj lwm los xyuas kom muaj kev zoo zoo ntawm kev pov thawj kom tsis txhob thawb, ntsws, cov thawv thiab porosity hauv casting.
Thaum xuab zeb hom centrifugal casting siv, nws tseem yog qhov tsim nyog yuav tau them sai sai rau qhov tseeb tias cov kua hlau muaj cov centrifugal ntau dhau ntawm cov phab ntsa thiab ua rau muaj xws li cov xuab zeb thiab cov plhaub ntawm qhov casting.
Centrifugal casting ceev xam cov qauv siv:
1. Tshem cov pwm ceev raws li qhov sib npaug ntawm cov coefficient:
Centrifugal casting yooj yim kev paub
n: ceev (r / min)
C: Qhov coefficient muaj peev xwm yog txiav txim los ntawm yam tseem ceeb xws li hom casting alloy, nrawm nrawm, thiab hom pwm.
R: casting puab inch (m)
2. Tsis-hlau nrum casting centrifugal casting:
Centrifugal casting yooj yim kev paub
n: ceev (r / min)
P: Siab siab tshaj centrifugal (Mpa) tias cov pwm uas tsis yog hlau-poom tuaj yeem tiv thaiv tau
ρ: alloy ntom (Kg / m3)
R, r: sab nraum lub cheeb thiab hauv kab uas hla ntawm casting (m)
2) Pwm rau centrifugal casting
Nws muaj ob hom moulds siv hauv centrifugal casting, namely hlau hom thiab tsis yog hom hlau. Non-xim hlau yuav ua tau hom xuab zeb, plhaub hom, peev plhaub hom thiab hais txog. Vim hlau tuaj pwm muaj qhov zoo ntawm cov khoom loj thiab ntau lawm, hlau tuaj pwm siv dav hauv centrifugal casting.
Cov hom hlau ntawm cov kab rov tav cantilever centrifugal casting tshuab tau muab faib ua ib hom hlau thiab ib hom hlau coj los ua raws li cov yam ntxwv ntawm tus qauv ntawm lub cev. Hauv ib hom hlau uas muaj ib txheej, cov phab ntsa yog tsim los ntawm ib txheej. Cov txheej txheem ib txheej txheem txheej yooj yim thiab yooj yim rau kev khiav lag luam. Txawm li cas los xij, tom qab nws puas lawm, nws tsim nyog ua kom pwm tshiab pib tsim khoom. Hauv cov pwm no, tsuas yog ib lub voj kab dav xwb thiaj li raug pov taus. Castings. Hauv ib hom txheej ob txheej, lub phab ntsa muaj ob txheej thiab cov casting yog tsim rau sab hauv. Txawm hais tias qhov ob-layered hlau qauv yog complex, ntau lub sab centrifugal castings tau nrum tsuav yog lub puab ua hauj lwm nto loj hloov. Tom qab lub sijhawm ntev, cov pwm laus tuaj yeem siv ua pwm tshiab los ntawm kev hloov cov qauv yooj yim.
3) Txheej
Thaum cov pwm molds yog cov centrifugally, nws yog feem ntau tsim nyog rau tshuaj tsuag tsuag xim hlau ua haujlwm nto. Cov cai ntawm centrifugal casting hlau hom coatings yog tib yam li cov kev siv hlau casting. Yuav kom tiv thaiv tau cov castings los ntawm kev ua adhered mus rau cov hlau pwm thiab cov hlau cast ntawm los ntawm qhov ncauj tau dawb, ntawm txheej xim ntawm lub centrifugal hlau pwm tej zaum kuj thicker. Feem ntau ntawm cov centrifugal casting coatings siv dej ua tus cab kuj. Nws kuj yog qee zaum siv hauv lub xeev cov coatings, xws li graphite hmoov, ua castings yooj yim tshem tawm ntawm pwm.
Thaum muab cov xim pleev xim rau, qhov kub ntawm cov hlau yuav tsum raug tswj. Hauv qhov tsim tawm loj loj, yog lub tshav kub tsis txaus rau cov xim muaj hlau, cov pwm tuaj yeem muab tso rau hauv qhov cub cua sov kom muaj qhov kub thiab txias ntawm cov pwm. Thaum tsim tawm me me castings, tshwj xeeb tshaj yog thaum siv lub tshuab cantilever centrifugal, nws yog ntshaw kom siv lub tshav kub ntawm casting nws tus kheej mus rau dej nyab lub txheej thiab tos rau casting.
4) Pouring
Hauv centrifugal casting, txoj kev ua tus casting nws muaj nws tus yam ntxwv. Ua ntej ntawm tag nrho cov, txij li lub sab hauv puab ntawm casting yog ib qhov dawb, qhov kev tswj ntawm lub thickness ntawm casting yog txiav txim siab los ntawm tus nqi ntawm cov roj ua kua nchuav. Yog li no, cov yuav tsum tau ua rau cov poured hlau thaum lub sij hawm casting los centrifugal casting yuav tsum tau. Siab dua. Tsis tas li ntawd, txij li thaum lub ncuav yog ua nyob rau hauv qhov mob pwm rotates, thiaj li tshem tawm cov hlau txaws ntau li ntau tau, qhov kev taw qhia ntawm cov hlau thaum nkag mus rau cov pwm zoo tswj.
Quantitative liquid metal method, ntim cov qauv thiab teeb qhov dawb saum qhov siab (ua kua hlau tuab tuab) txoj kev. Volumetric txoj kev siv ib lub ntim ntawm lub nplaub tsho kom tswj tau tus nqi ntawm cov roj ua kua, qhov no yog ib qho yooj yim, tab sis cuam tshuam los ntawm cov npuas hlau, qhwv, thiab lwm yam, qhov ntau yog tsis yog, siv ntau lawm.
Yuav kom tshem tawm cov hlau txiav kom ntau li ntau tau thaum lub sij hawm casting, nws yog ib qhov tsim nyog los tswj cov kev coj ua ntawm cov kua hlau thaum nws nkag mus hauv pwm.