Hauv kev tsim khoom niaj hnub, cov txheej txheem casting yog qhov tseem ceeb txuas rau hloov ua kua hlau rau hauv cov khoom thiab cov khoom tshwj xeeb. Raws li ob txoj hauv kev tseem ceeb tshwj xeeb, kev nqis peev casting thiab centrifugal lub luag haujlwm nrog lawv cov ntsiab lus tsis zoo, cov ntsiab lus ntawm kev thov thiab caming cov yam ntxwv. Ib txoj kev nkag siab tob ntawm qhov sib txawv ntawm ob cov txheej txheem yog qhov tseem ceeb rau kev ua kom zoo dua cov khoom tsim, kev tsim cov nqi thiab ua kom cov khoom lag luam kom zoo.
Piv ntawm pwm hom
1 Lub ntiaj teb lub ntiaj teb ntawm kev nqis peev casting
Nyob rau hauv kev nqis peev casting, kev xaiv thiab kev tsim cov pwm ncaj qha cuam tshuam qhov zoo thiab ntau lawm moulds. Muaj feem ntau ob hom pwm rau ua cov ntawv siv ciab: rau kev sib xyaw me me lossis cov duab ua ke nrog cov ntawv sib xyaw ua ke, cov ntaub nyias nyias yog siv. Nyob rau lub sijhawm no, tsis muaj cov pwm kim siv, thiab cov kws txawj txua tsuas yog xav tsim nrog superb kev txawj, tab sis cov qauv no tsis muaj peev xwm thiab yuav tsum tau siv cov neeg ua haujlwm hnyav. Hauv cov huab hwm coj ntau lawm, cov pwm pwm xws li txhuas pwm lossis pwm pwm tuaj yeem siv. Cov hlau cov pwm muaj qhov ntsuas siab thiab hnav zoo, uas tuaj yeem ua kom cov qhov raug thiab qhov chaw zoo ntawm cov ntaub qhwv Wax. Txawm li cas los xij, kev txhim kho tus nqi ntawm cov hlau pwm yog qhov siab. Cov nqi tsim ntawm txheej pwm tuaj yeem yog los ntawm kaum tawm txhiab txhiab rau ntau pua leej thiab cov kws tshaj lij kev ua lag luam thiab kev tsim khoom lag luam. Ib qho ntxiv, lub neej ntawm pwm tseem yog qhov tseem ceeb tshaj plaws. Cov kev pabcuam lub neej ntawm txhuas alloy pwm feem ntau feem ntau feem ntau yog 500000000 yam khoom siv tau thiab kho tau tom qab siv tau ntev kom ntseeg tau tias lawv qhov tseeb.
2 Cov ntawv zais ntawm centrifugal casting pwm
Cov pwm ntawm centrifugal casting yuav tsum muaj qhov muaj zog txaus thiab rigidity kom tiv thaiv lub zog loj loj loj tsim tawm thaum lub sijhawm sib hloov ceev. Cov khoom siv pwm xws li cam khwb cia hlau, hlau lossis cov cua sov tiv thaiv kub. Rau kev tsim cov qauv kev sib hloov lub cev cov khoom muaj xws li cov kav dej thiab cov thooj voos kheej thiab cov pwm, pwm pwm feem ntau yog siv. Cov pwm no muaj qhov zoo cua sov thiab tuaj yeem txias thiab ua rau cov hlau ua kom sai li cas, yog li kev txhim kho cov hlau, yog li kev txhim kho cov khoom siv ntau thiab zoo ntawm cov casting. Txawm li cas los xij, txoj kev tsim khoom lag luam ntawm cov hlau pwm yog cov khoom thiab kim heev. Tsis tas li ntawd, thaum lub sijhawm ua tiav cov txheej txheem casting, vim yog cov khoom siv ntawm cov hlau uas kub siab thiab cov pwm yog hnav thiab hloov pauv tsis tu ncua. Hauv qee kis tshwj xeeb, xws li kev tsim cov khoom loj lossis cov khoom sib xyaw ua ke, cov pwm pwm kuj tseem siv rau cov txheej txheem centrifugal. Cov pwm xuab zeb muaj qhov zoo ntawm tus nqi qis thiab hloov tau ntau yam khoom siv hluav taws xob, lawv yuav cuam tshuam rau qhov tseeb ntawm qhov tseeb thiab cov khoom siv hluav taws xob, thiab cov khoom siv ntau lawm yog qhov tsawg.
Kev sib piv ntawm cov nqi thiab efficiency
1 Kev nqis peev meting: kev txiav txim siab them nqi tom qab qhov ntsuas siab
1.1 Cov Nqi Pwm
Cov pwm ntawm kev nqis peev casting qhia tau qhov sib txawv hauv cov nplai sib txawv. Hauv ib-thooj lossis me me-batch ntau lawm, cov roj pwm tsis tshua muaj peev xwm siv cov hlua khi, tab sis nyuaj ua tau raws li cov kev xav tau ntawm kev tsim khoom loj. Nyob rau hauv kev sib tw loj, nyob rau hauv thiaj li yuav kom ntseeg tau qhov tseeb thiab ntau lawm kev ua haujlwm ntawm cov quav ciab pwm, hlau yuav tsum tau. Kev txhim kho tus nqi ntawm cov hlau pwm muaj siab, thiab ib txheej ntawm cov hlau sib xyaw ua ke yuav xav tau kev nqis peev ntawm ntau txhiab, uas tso ntau ntau ntawm cov nyiaj txiag siab ntawm lub tuam txhab hauv cov theem thaum ntxov. Txawm li cas los xij, raws li cov khoom lag luam ntau lawm, tus nqi pwm tuaj yeem kis tau ntau dua cov khoom lag luam, thiab cov pwm raug nqi ib chav khoom maj mam txo.
1.2 Ntau lawm voj voog
Lub voj voog ntau lawm ntawm kev nqis peev casting yog qhov ntev. Tag nrho cov txheej txheem suav nrog cov qauv siv quav ciab ua, kev npaj plua plav, ci, ci, hliv, xuab zeb thiab tom qab ua. Ntawm lawv, txoj kev npaj lub plhaub yog kuj tseem ceeb heev cumbersome, xav tau ntau cov ntaub ntawv ntawm refractory cov ntaub ntawv thiab ziab ntev. Lub sijhawm ziab rau txhua txheej txheej yog feem ntau ntawm 12-24 teev, thiab tag nrho lub plhaub ntau lawm lub voj voog yuav ntev li 5-7 hnub. Tsis tas li ntawd, cov txheej txheem dewaxing thiab ci cov txheej txheem kuj xav tau kev tswj hwm qhov kub thiab sijhawm kom ntseeg tau tias qhov zoo ntawm lub plhaub thiab qhov tseeb ntawm qhov tseeb. Lub voj voog ntau lawm tsis tsuas yog nce cov nqi ntau lawm, tab sis kuj cuam tshuam rau lub tuam txhab cov peev txheej hloov nrawm thiab kev ua lag luam.
1.3 Khoom Siv Siv Khoom Siv thiab Cov Nqi Ua Haujlwm
Kev nqis peev casting ua tau zoo nyob rau hauv cov nqe lus ntawm cov khoom siv. Vim tias tsis muaj kev poob ntawm cov pwm puab xuab zeb hauv cov xuab zeb casting, thiab molten hlau tuaj yeem sau cov txheej txheem ua tiav, tus nqi hlau ua kom tiav mus txog 85% -95%. Txawm li cas los xij, cov nqi zog cov nqi rau lub siab ntawm kev nqis peev meting, vim tias cov txheej txheem yuav tsum tau muaj cov neeg ua haujlwm tseem ceeb thiab yuav tsum muaj cov neeg ua haujlwm ua haujlwm. Cov kev kawm thiab cov nqi them nyiaj hli yog tus nqi siab rau siab, ua cov nqi zog cov nqi rau 30% {}}% ntawm tag nrho tus nqi.
1.4 Tus Nqi
Rau qhov chaw me me lossis cov ntu uas muaj peev txheej ntawm kev nqis peev casting yog qhov tseem ceeb. Qhov no yog vim kev sib xyaw ua ke ntawm cov yam ntxwv xws li nws cov txheej txheem nyuaj, tus nqi pwm, uas ua rau tus nqi ntawm kev nqis peev ua casting2 - 3 lub sijhawm ntawm xuab zeb casting. Txawm li cas los xij, nyob rau hauv cov ntaub ntawv ntawm pawg ntau lawm thiab siab heev rau cov khoom lag luam, thiab txo cov nqi ntawm cov khoom lag luam tom ntej, tag nrho cov nqi ntawm cov khoom yog txo tag nrho.
2 centrifugal casting: tus nqi kom zoo dua ntawm kev ua tau zoo
2.1 Cov Nqi Pwm
Lub sijhawm ua haujlwm ib zaug ntawm cov hlau pwm rau centrifugal casting yog tus txheej txheem loj, yog xav tau siv cov cuab yeej loj, yog li cov nqi ua lag luam tau zoo siab. Txawm li cas los xij, txij li centrifugal casting yog siv rau huab hwm coj kev sib tw ntawm lub cev casting ib qho khoom lag luam poob sai nrog kev nce hauv ntau dua cov roj av. Piv nrog kev nqis peev casting, cov pwm nqi kom zoo dua ntawm Centrifugal caming maj mam tawm los ntawm cov loj-teev ntau lawm.
2.2 Ntau lawm voj voog
Lub voj voog ntau lawm ntawm centrifugal casting yog luv, uas yog ib qho ntawm nws qhov tseem ceeb. Thaum lub sij hawm centrifugal casting txheej txheem, kev sib hloov ntawm pwm tso cai rau cov pwm thiab siv tau ntau zaus, thiab tag nrho cov txheej txheem ntau zaus mus rau ob peb teev. Piv txwv li, thaum ua cov pob zeb me me, cov khoom siv ntau lawm ntawm centrifugal casting tuaj yeem ncav cuag cov khoom muaj peev xwm thiab kev ua lag luam muaj peev xwm ntawm kev lag luam. Cov nqi sib txuas lus luv luv tsis tsuas yog txo cov nqi tsim khoom, tab sis kuj tseem ua lag luam kev thov kev lag luam sai dua thiab txhim kho kev sib tw ntawm kev lag luam.
2.3 Khoom Siv Siv thiab Ua Haujlwm Tus Nqi
Centrifugal casting kuj ua tau zoo nyob rau hauv cov khoom siv. Txij li nws tsis tas yuav muaj kev sib xyaw ua ke nrog system thiab cov txheej txheem riser, nws txo qhov kev siv ntawm cov khoom ntawm cov khoom thiab muaj cov txheej txheem siab. Nyob rau tib lub sijhawm, cov qib ntawm kev siv hluav taws xob ntawm centrifugal casting yog tus kheej. Hauv cov txheej txheem ntau lawm, tshwj tsis yog tso rau kev sib txuas, uas yuav tsum tau ua haujlwm ntawm cov pwm thiab cov kev sib txuas ntawm cov khoom siv ua tiav tuaj yeem ua tiav los ntawm cov cuab yeej siv. Qhov no ua rau kev sib txheeb ntawm cov nqi zog hauv cov nqi qis, feem ntau tsuas yog 10% {%, txo qis lub tuam txhab kev siv nyiaj.
2.4 Tus Nqi
Rau kev sib hloov tsheb lub cev castings, chav tsev tus nqi ntawm centrifugal casting yog tsawg. Qhov no yog vim tias nws muaj qhov zoo hauv pwm sib koom, ua haujlwm ua ntau lawm, cov nqi siv hluav taws xob, uas ua rau cov khoom siv hluav taws xob ua kom tiav thiab qis-tsim cov khoom lag luam no. Piv txwv li, thaum tsim cov khoom lag luam xws li cam khwb cia hlau kav, tus nqi ntawm centrifugal casting tsuas yog 60%}}}% ntawm cov xuab zeb casting. Txawm li cas los xij, rau castings nrog asymmetric lossis cov duab ua ke, tus nqi ntawm centrifugal casting yuav nce ntxiv vim tias kev siv cov khoom lag luam thiab cov txheej txheem ntxiv, thiab tseem tshuav lwm cov txheej txheem ua haujlwm.
3 Yuav Xaiv Txheej Txheem Li Cas?
3.1 Kev nqis peev casting yog nyiam:
Yuav tsum muaj: cov duab nyuaj, qhov ntsuas siab, nyuaj-rau-txheej txheem cov ntaub ntawv (xws li nqus pa, kev cog lus kev kho mob);
Txwv: Nqi them tus nqi loj loj uas yuav tsum tau kho nrog kev ceev faj (tshwj tsis yog cov nqi txo los ntawm cov thev naus laus zis wax qauv).
3.2 Centrifugal casting yog qhov nyiam:
Yuav tsum tau ua: cov qauv sib txawv, cov khoom siv neeg kho tshuab, cov roj loj (xws li cov kav dej, lub tog raj kheej, lub tog raj kheej, kheej kheej kheej kheej kheej kheej kheej kheej kheej kheej kheej kheej kheej kheej kheej kheej kheej kheej);
Txwv: Tsis tsim nyog rau asymmetric lossis complex inner kab kab noj hniav, thiab thawj zaug kev nqis peev hauv pwm yog qhov siab.