Nrog rau txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis, cov kev xav tau rau kev nyab xeeb thiab kev zoo nkauj ntawm cov khoom siv tuag-casting yog tas li nce. Qhov zoo ntawm cov khoom yog ntsuas qhov sib txawv nyob ntawm kev siv. Niaj hnub no, tus editor yuav qhia koj li cas pwm tsim cuam tshuam qhov zoo ntawm txhuas tuag castings. Yuav ua li cas los tsim cov khoom zoo yog qhov tseem ceeb heev rau kev txuag cov ntaub ntawv thiab lub zog, txo cov sij hawm tsim khoom, thiab txhim kho cov txiaj ntsig kev lag luam.
1. Cov yam ntxwv cuam tshuam rau qhov zoo ntawm cov tuag castings
Muaj ntau yam uas cuam tshuam rau qhov zoo ntawm qhov tuag-casting qhov chaw, xws li hom thiab zoo ntawm lub tshuab tuag-casting, lub rationality ntawm cov qauv geometric thiab cov kev xav tau ntawm cov tuag-casting qhov chaw, cov qauv ntawm cov pwm thiab cov technical theem ntawm tus neeg teb xov tooj, thiab lwm yam.
1. Tsim cov tuag casting qhov chaw
Cov neeg tsim qauv yuav tsum xub nkag siab txog tus neeg siv cov kev xav tau ntawm kev siv thiab kev ua haujlwm, nrog rau cov kev ntxhov siab ntawm kev tuag castings, tom qab ntawd xaiv cov khoom tsim nyog raws li cov kev xav tau ntawm kev siv thiab ib puag ncig ua haujlwm, thiab nkag siab txog qhov tuag-casting cov khoom ntawm lawv cov ntaub ntawv. Thaum tsim, tshwj xeeb yuav tsum tau them nyiaj rau kev ua cov qauv ntawm qhov tuag-casting qhov yooj yim li sai tau thaum ua tau raws li qhov yuav tsum tau siv. Phab ntsa thickness yuav tsum tsim nyog thiab sib xws, thiab lub kaum sab xis tsim nyog yuav tsum tau sab laug. Txwv tsis pub, qhov tsis xws luag xws li lub qhov dej, qhov pores, shrinkage porosity, undercasting, rub cov cim, tawg, deformation thiab lwm yam tsis xws luag yuav tshwm sim ntawm qhov tuag castings.
Cov kev xav tau ntawm qhov tseeb ntawm qhov tuag castings yuav tsum yog qhov tsim nyog, txwv tsis pub nws yuav ua rau muaj teeb meem tsis tsim nyog hauv pwm tsim, pwm ua, tsim thiab tswj cov txheej txheem, thiab ua rau cov khoom lag luam tsis zoo.
2. Pwm qauv, ua kom raug thiab pwm xaiv cov khoom siv
Tuag-casting qhov chaw yog tsim los ntawm pwm. Tsis muaj qhov tsis ntseeg tias kev tsim, kev ua, thiab kev xaiv cov khoom pwm muaj feem cuam tshuam nrog cov khoom zoo. Yog tias cov qauv pwm tsis tsim nyog, nws yuav nyuaj rau kev ua kom cov khoom tsim nyog txawm tias yuav ntsuas dab tsi los ntawm cov txheej txheem.
Tsis tas li ntawd, cov khoom siv pwm, pwm ua qhov tseeb, qhov roughness ntawm qhov chaw, ua cov cim, cov kab nrib pleb me me hauv kev kho cua sov, nitride txheej thickness thiab cov pwm tsis zoo yuav cuam tshuam rau cov khoom zoo thiab pwm lub neej.
3. Txo tus nqi ntawm cov khoom siv casting
Thaum lub shrinkage ntawm casting cov ntaub ntawv yog feem ntau muab raws li ib tug nruab nrab feem pua los yog raws li ib tug feem pua nrog ib tug tej yam txawv variation, qhov nruab nrab shrinkage ntawm cov khoom feem ntau yog siv. Rau high-precision tuag castings, thaum tsim pwm, tshwj xeeb yuav tsum tau them rau cov khoom shrinkage tus nqi. Yog tias tsim nyog, kuaj pwm tuaj yeem ua ntej. Tom qab tau txais cov ntaub ntawv xav tau ntawm kev kuaj pwm, cov pwm tuaj yeem tsim thiab tsim rau ntau lawm.
4. Kev tsim thiab ua tiav cov txheej txheem tuag-casting
Kev tsim thiab ua tiav ntawm cov txheej txheem tuag-casting muaj feem xyuam rau qhov zoo ntawm cov pwm, cov cuab yeej tuag-casting, thiab cov txheej txheem ntawm cov neeg ua haujlwm. Raws li cov xwm txheej ntawm cov khoom siv hauv tsev tuag-casting uas twb muaj lawm, nws yog qhov nyuaj rau kev ua tiav ruaj khov, txhim khu kev qha thiab meej tswj cov txheej txheem tuag-casting tsis. Ua tiav kev tswj hwm ntawm cov txheej txheem tuag-casting yog txheej txheem ntawm kev sib txuas thiab siv cov khoom xws li cov khoom siv tuag-casting, cov ntaub ntawv tuag-casting, thiab pwm. Tsis ua raws li cov txheej txheem nruj me ntsis thiab cov tsis tseem ceeb yuav ua rau shrinkage, deformation, under-casting, thiab substandard qhov ntev ntawm qhov tuag-casting.
2. Kev sib raug zoo ntawm kev tuag casting zoo thiab pwm
Cov pwm yog cov cuab yeej tseem ceeb rau kev tuag castings. Yog li ntawd, thaum tsim pwm, koj yuav tsum sim koj qhov zoo tshaj plaws los ua kom tag nrho cov qauv ntawm cov pwm thiab cov pwm pwm tsim nyog, yooj yim los tsim, siv tau yooj yim, nyab xeeb thiab txhim khu kev qha. Txhawm rau tiv thaiv cov pwm los ntawm deforming thaum lub sij hawm tuag-casting, cov hlau molten ntws ruaj khov nyob rau hauv cov pwm, lub casting tuaj yeem ua kom txias sib npaug, thiab tuag-casting tuaj yeem ua tiav tsis siv neeg. Tsis tas li ntawd, cov ntaub ntawv pwm tsim nyog yuav tsum raug xaiv kom tsim nyog raws li qhov ntau lawm batch loj, cov khoom siv, thiab lwm yam.
1. Cov qauv ntawm cov pwm thiab pwm pwm yuav tsum tsim nyog
Los ntawm qhov kev xav ntawm lub zog, cov pwm qhov chaw yog tsim kom muaj kev sib koom ua ke zoo, muaj zog thiab ruaj khov, thiab tsis yooj yim puas lossis deformed thaum siv. Txawm li cas los xij, yog tias cov duab ntawm qhov tuag casting yog complex thiab cov pwm qhov chaw kuj nyuaj, cov pwm ua yuav nyuaj thiab cov txheej txheem ua tiav yuav tsis siab. Yog tias cov pwm pwm tau tsim los ua ke, kev ua haujlwm yuav yooj yim heev, kev ua haujlwm siab tuaj yeem yooj yim tau, thiab cov khoom zoo siab tuaj yeem tau txais.
2. Kev txiav txim siab ntawm cov kab noj hniav
Txhawm rau txiav txim siab tus naj npawb ntawm cov kab noj hniav, cov cuab yeej muaj peev xwm, qhov nyuaj ntawm kev ua pwm, ntau lawm batch loj, qhov yuav tsum tau ua kom raug, thiab lwm yam. Tshwj xeeb tshaj yog rau ntau cov kab noj hniav pwm, vim qhov nyuaj ntawm pwm ua, qhov loj qhov tseeb qhov yuam kev, thiab nyuaj rau kev ua tiav qhov sib npaug ntawm qhov sib npaug, qhov kev ua tau zoo ntawm txhua qhov kab noj hniav casting yog qhov tsis sib xws. Thaum tuag castings xav tau siab precision thiab complex geometric duab, nws yog qhov zoo tshaj plaws los siv ib lub pwm thiab ib kab noj hniav. Me me castings yog nyob rau hauv muaj.
3. Tsim cov txheej txheem pouring
Lub rooj vag system tsis yog tsuas yog ib txoj hauv kev rau cov kua hlau los sau cov pwm tuag-casting, tab sis kuj tswj cov yam ntxwv xws li tus nqi ntws thiab siab kis ntawm cov yaj, cov cua txias, thiab thermal stability ntawm cov pwm tuag-casting. Yog li ntawd, kev tsim ntawm lub rooj vag system yuav tsum txheeb xyuas cov yam ntxwv ntawm cov casting, Cov kev cai, hom alloy thiab lawv cov yam ntxwv, nrog rau hom thiab cov yam ntxwv ntawm lub tshuab tuag-casting, thiab lwm yam, yuav tsum tau txiav txim siab, yog li ntawd. lub rooj vag tsim nyog yuav tsim tau.
4. Exhaust system tsim
Cov pwm yuav tsum tau nruab nrog ib qho dhau qhov zawj thiab tso pa tawm nrog cov dej ntws txaus, uas yog qhov tseem ceeb heev los xyuas kom meej cov khoom zoo. Cov tib neeg feem ntau saib qhov tshwm sim uas cov dej ntws tau raug thaiv ua ntej los ntawm cov hlau molten tuaj. Ib qho qauv tsim nyog yuav tsum tau txais kev pom zoo kom tso cai rau cov hlau molten ntws mus rau hauv qhov tob ntawm lub tank dej ua ntej, kom ntseeg tau tias lub qhov tso pa tseem qhib rau lub sijhawm ntev tshaj plaws. Tsis tas li ntawd, lub thoob dej tank yuav tsum tau nruab nrog ib tug ejector pas nrig kom tshem tawm cov hlau los ntawm lub thoob dej tank.
5.Pwm kub
Qhov kub ntawm cov pwm tuag-casting yog qhov tseem ceeb cuam tshuam rau qhov zoo ntawm casting. Cov pwm kub tsis zoo tsis tsuas yog cuam tshuam rau sab hauv thiab sab nraud zoo ntawm qhov tuag casting (xws li qhov tsis xws luag xws li pores, shrinkage qhov, looseness, mucous membranes, coarse grains, thiab lwm yam), tab sis kuj cuam tshuam rau qhov tseeb qhov tseeb ntawm qhov casting, thiab txawm deforms lub casting, ua rau tawg nyob rau hauv lub tuag casting pwm thiab ua rau lub casting. Reticular burrs yog tsim rau ntawm qhov chaw uas nyuaj rau tshem tawm, cuam tshuam rau cov tsos zoo ntawm tuag castings. Ua piv txwv aluminium alloy qhov kub thiab txias yog nchuav rau hauv pwm ntawm 670-710 degree . Hauv kev xyaum ua haujlwm ntev, nws tau txiav txim siab tias qhov zoo tshaj plaws ntawm cov pwm yuav tsum tau tswj ntawm 40% ntawm qhov kub ntawm cov pwm. Qhov kub ntawm aluminium alloy tuag-casting pwm yog 230-280 degree . Cov pwm kub hauv qhov ntau no yog qhov tsim nyog kom tau txais cov khoom zoo thiab cov txiaj ntsig zoo.
Pwm feem ntau tsis siv roj lossis hluav taws xob cua sov, tab sis siv cov khoom siv ua ntej thiab cua txias. Cov khoom siv no siv roj ua qhov nruab nrab kom preheat thiab txias pwm raws li qhov xav tau.
6. Kev txiav txim siab ntawm qhov loj ntawm molded qhov chaw
Thaum xam qhov loj ntawm qhov tuag-cam khwb cia, qhov shrinkage tus nqi ntawm cov khoom siv tuag-cam khwb cia yuav tsum muaj tseeb, txwv tsis pub cov khoom tsim tawm yuav tsis tsim nyog. Yog tias tsim nyog, suav qhov ntev ntawm qhov tuag casting tom qab ntsuas qhov tseeb nrog cov pwm kuaj. Rau cov khoom siv high-precision, txawm tias qhov thermal expansion ntawm pwm tuag-casting cov khoom siv thiab qhov cuam tshuam ntawm kev cia thiab siv ib puag ncig ntawm cov khoom qhov raug qhov tseeb tom qab tuag-casting yuav tsum raug coj mus rau hauv tus account.
7. Kev txiav txim siab ntawm txoj hauj lwm ntawm qhov chaw parting
Txoj hauj lwm ntawm qhov chaw parting yuav cuam tshuam rau kev ua pwm, tso tawm, khoom demoulding, thiab lwm yam. Feem ntau, qhov seem ntawm qhov seem yuav tawm hauv kab ntawm cov khoom, cuam tshuam rau qhov zoo ntawm qhov chaw thiab qhov tseeb ntawm cov khoom. Yog li ntawd, thaum tsim txoj hauj lwm ntawm qhov chaw parting, ntxiv rau kev coj mus rau hauv tus account cov teeb meem xws li cov khoom demoulding, pwm ua, thiab tso pa tawm, parting nto txoj hauj lwm yuav muab tso rau qhov twg cov khoom nto zoo tsis siab los yog qhov tseeb qhov seem tsis yog. siab.
8. Cov pwm tsis tuaj yeem deformed
Feem ntau vim yog cov qauv pwm tsis tsim nyog lossis xaiv cov khoom pwm tsis raug, cov pwm yuav tawg thiab deform thaum siv, uas yuav ua rau cov khoom tsis tsim nyog. Vim li no, thaum tsim pwm, kev ntsuas tsim nyog yuav tsum tau ua kom ntseeg tau tias cov khoom zoo.
Feem ntau, thaum tuag-casting, lub siab hauv pwm yog 70-100MPa. Txhawm rau tiv thaiv cov pwm los ntawm deforming thiab dislocating, pwm kab noj hniav yuav tsum tuab txaus, thiab phaj thiab nraub qaum phaj rau kev txhim kho cov tub ntxhais yuav tsum tuab txaus. Yog tias tsim nyog, cov ntaub qhwv tuaj yeem muab ntxiv rau hauv qab phaj. Lub hauv paus thiab kab noj hniav yuav tsum tau muab tso siab rau. Sab roughness ntawm cov tub ntxhais thiab lub qhov mounting yuav tsum tsim nyog, thiab qhov roughness tsis tuaj yeem qis dhau. Cov tub ntxhais los ntawm qhov yuav tsum tau kho ntawm ob sab kom tiv thaiv cov khoom los ntawm cov phab ntsa tuab ntawm ib sab thiab nyias phab ntsa ntawm lwm qhov. Rau cov tub ntxhais ntawm qhov muag tsis pom qhov ntawm cov khoom, peb kuj yuav tsum nrhiav txoj hauv kev kom sib npaug ntawm qhov kev ntxhov siab ntawm cov tub ntxhais los ntawm qhov chaw thiab qhov ntau ntawm qhov chaw nres nkoj pub thiab kev txhawb nqa ntawm cov tub ntxhais.
Rau cov pwm tuag-casting, lub zog ntawm cov kab noj hniav thiab cov phaj rov qab tuaj yeem kuaj xyuas. Tshawb xyuas lub zog thiab nruj ntawm cov kab noj hniav phab ntsa thickness, thiab xyuas qhov nruj ntawm cov phaj nraub qaum. Ntxiv nrog rau kev noj qee yam kev ntsuas ntawm cov qauv pwm, cov ntaub ntawv pwm nrog me me deformation thiab lub zog zoo yuav tsum tau xaiv. Tsis tas li ntawd, muaj qhov sib txawv ntawm cov pwm coj tus pin thiab phau ntawv qhia hav txwv yeem, lossis kev hnav ntawm tus taw qhia tus pin thiab daim ntawv qhia hav txwv yeem thaum siv yuav cuam tshuam rau qhov zoo ntawm cov khoom. Tshwj xeeb tshaj yog rau cov khoom uas muaj qhov tseeb qhov tseeb, txhawm rau ua kom cov khoom raug, qhov sib txuam ntawm cov khoom txav tau thiab cov pwm ruaj khov tuaj yeem muab tso rau ntawm qhov chaw sib cais, lossis 2-4 qhov chaw rods tuaj yeem teeb tsa ntawm qhov chaw tsim nyog nyob ib puag ncig pwm. kab noj hniav rau positioning thiab reinforcement. , los tiv thaiv misalignment ntawm qhov txav thiab ruaj khov pwm, uas yog qhov tseem ceeb tshaj rau cov pwm loj thiab ntau lawm.
Lub ejection system yuav tsum tau nruab nrog cov lus qhia los tiv thaiv lub laub pas nrig los ntawm kev ua haujlwm tsis sib xws thiab los ntawm kev hnav ntawm ib sab, kom ntseeg tau tias cov khoom sib npaug sib npaug thiab cov khoom tsis deformed thaum ejection.
