I. Cov Ntsiab Cai ntawm Precision Casting
Precision casting tshuab yog ib txoj kev ua haujlwm uas siv cov pwm los txhaj cov hlau molten rau hauv pwm kab noj hniav, thiab tom qab ntawd solidifies los ntawm txias. Lub hauv paus ntsiab lus ntawm precision casting yog nyob rau hauv kev siv qhov kub thiab txias siab kom yaj cov hlau mus rau hauv lub xeev ua kua, ces txhaj rau hauv pwm kab noj hniav los ntawm cov duab thiab cov qauv ntawm cov pwm, thiab thaum kawg solidifying los ntawm txias kom tau cov yam xav tau. Txoj kev no tuaj yeem tsim cov khoom nrog cov duab nyuaj thiab tuaj yeem zam qhov tsis xws luag thiab deformations uas yuav tshwm sim hauv lwm txoj hauv kev.
II. Txheej txheem Flow ntawm Precision Casting
Cov txheej txheem khiav ntawm precision casting suav nrog cov kauj ruam hauv qab no: A: Pwm Kev Npaj: Ua cov pwm sib xws raws li cov duab thiab qhov loj ntawm qhov yuav tsum tau ua. B: Kev Npaj Khoom Siv: Muab cov ntaub ntawv sib xyaw ua ke thiab ua kom sov kom yaj. C: Pouring: Txhaj cov kua molten los ntawm lub qhov pouring rau hauv pwm. D: Txias thiab Solidification: Tom qab cov kua txias thiab solidifies, qhib lub pwm thiab tshem tawm qhov yuav tsum tau ua. E: Tshaj tawm-kev ua haujlwm: Ua haujlwm tshaj tawm- ua haujlwm ntawm qhov tau txais, xws li deburring thiab polishing.
III. Daim ntawv thov cheeb tsam ntawm Precision Casting
Precision casting tshuab yog dav siv hauv kev lag luam xws li aerospace, tsheb, khoom siv kho mob, thiab khoom siv hluav taws xob. Piv txwv li, precision casting tshuab tuaj yeem siv los tsim cov khoom siab -qhov tseeb xws li lub cav cav rotors, automotive engine qhov chaw, thiab cov khoom siv kho mob, thiab muaj kev lag luam loj.
IV. Qhov zoo thiab qhov txwv ntawm Precision Casting
A: Precision casting tshuab muaj qhov zoo hauv qab no:
1. Precision casting muaj qhov tshwj xeeb tsim qauv yooj yim, tso cai rau cov khoom sib tw thiab cov khoom raug pov rau hauv cov duab ze ze rau cov khoom tiav. Nws muab yuav luag tsis muaj kev ywj pheej hauv cov khoom siv casting. Nws muaj dav adaptability thiab tsis txwv los ntawm qhov loj, tuab, los yog complexity ntawm castings. Cov cim xws li cov cim lag luam, cov npe, lossis cov lej kuj tuaj yeem raug pov ncaj qha rau ntawm cov khoom.
2. Ntau yam ntaub ntawv siv tau rau precision casting. Cov ntaub ntawv no suav nrog cov hlau tsis muaj steel, carbon steel, qis- carbon alloy steel, tooj liab, aluminium, hlau, cobalt, thiab lwm yam. Yog li ntawd, castings tsim los ntawm precision casting txheej txheem yuav siv tau nyob rau hauv ntau yam industries.
3. Precision casting tuaj yeem siv rau hauv ntau yam kev lag luam. Nws yog siv dav hauv aerospace, tsim hluav taws xob, phom, tsheb, tub rog, kev lag luam, kev pabcuam zaub mov, roj av thiab roj av, thiab kev lag luam hluav taws xob. Piv txwv li, kev lag luam phom tau tig mus rau cov khoom siv rau cov phom txais, ua rau, rauj, thiab lwm yam precision. Yog li ntawd, nws tuaj yeem hais tias txawm tias koj nyob hauv kev lag luam twg, yog tias koj lub lag luam tuaj yeem tau txais txiaj ntsig los ntawm qhov zoo ntawm precision casting qhov chaw thiab cov khoom, lawv yuav yog qhov zoo tshaj plaws hlau xaiv rau tag nrho koj cov haujlwm.
4. Precision casting muaj stricter tolerances, enabling nruj dimension tolerances tsawg li ± 0.2 millimeters, ua rau siab -precision castings.
5. Cov txheej txheem casting precision muab kev kho kom zoo dua. Qhov yuav tsum tau ua haujlwm thib ob, nrog rau lub sijhawm thiab tus nqi, raug txo. Qhov no yog ib qho tseem ceeb rau kev zam kev siv tshuab lossis lwm yam kev ua haujlwm precision machining lub sijhawm. Ntxiv mus, nws tuaj yeem nrum cov ntawv nyuaj lossis cov cim lag luam ntawm cov khoom sab nrauv, txo qhov xav tau tom qab laser npav thiab kos duab.
6. Precision casting tuaj yeem txo lub sijhawm ua haujlwm thiab lub sijhawm xa khoom vim tias nws txo qis qhov kev tshaj tawm -casting processing. Nyob rau tib lub sijhawm, precision casting tuaj yeem xa cov khoom lag luam ntau hauv lub voj voog xa khoom, uas pab cov neeg siv khoom sib tw hauv kev ua lag luam.
7. Cov txheej txheem casting precision tuaj yeem siv los tsim cov khoom me me -batch thiab loj -batch Cheebtsam. Nws muab cov thev naus laus zis txhim khu kev qha thiab qis - nqi rov ua haujlwm dua.
8. Piv nrog rau lwm cov txheej txheem, kev teeb tsa tus nqi ntawm precision casting pwm yog qis dua, uas ua rau tus nqi qis. Ntxiv mus, qhov ze ntawm -net-puab ntawm precision casting yuav tsum tau siv tshuab ua haujlwm me me, uas txo cov khoom pov tseg thiab txo lub zog, siv cov khoom siv, thiab cov nqi pwm. Thawj qhov kev nqis peev hauv kev tsim khoom yog qhov tsawg tshaj plaws. Yog li ntawd, tus nqi tsim khoom yog qhov sib tw heev.
9. Precision casting tuaj yeem muab siab - cov khoom zoo thiab txo qhov tsis xws luag. Peb tuaj yeem muab cov txheej txheem txhim khu kev qha, thiab qhov tsis lees txais tus nqi qis dua li ntawm cov xuab zeb casting.
10. Precision casting enables zus tau tej cov loj thiab me castings. Cov khoom me me yooj yim tuaj yeem nrum hnyav 30g lossis tsawg dua, nrog rau cov khoom loj uas hnyav txog 50kg.
Txawm li cas los xij, tseem muaj qee qhov kev txwv hauv kev siv lub tswv yim ntawm precision casting tshuab:
1. Cov txheej txheem yog qhov nyuaj thiab yuav tsum tau siab -qib kev paub thiab kev txawj ntse; 2. Cov khoom siv thiab cov khoom siv raug nqi siab; 3. Kev tswj xyuas nruj yog tsim nyog los xyuas kom meej qhov zoo thiab kev ua haujlwm ntawm cov khoom. Yog li ntawd, kev tshawb fawb thiab kev txhim kho ntxiv yog xav tau los txhim kho nws cov txheej txheem kev ua tau zoo thiab cov txiaj ntsig kev lag luam.
V. Trends in Precision Casting
Raws li kev lag luam thev naus laus zis txuas ntxiv mus, precision casting tshuab kuj tseem hloov zuj zus. Lub neej yav tom ntej ntawm precision casting tshuab suav nrog cov hauv qab no:
1. Txhim khu kev ua tau zoo: Los ntawm kev txhim kho cov txheej txheem thiab cov khoom siv, ua kom cov khoom siv tau zoo thiab ua tau raws li kev xav tau ntawm kev lag luam.
2. Txo cov nqi: Los ntawm kev txhim kho cov khoom tsim thiab txo cov nqi khoom, txo cov nqi tsim khoom thiab txhim kho kev lag luam kev sib tw.
3. Kev tsim kho kom zoo: Siv lub computer- pab tsim thiab simulation thev naus laus zis txhawm rau txhim kho qhov tsim ntawm precision- nrum qhov chaw, txhim kho lawv cov kev ua tau zoo thiab qhov tseeb.
4. Tshawb nrhiav cov ntaub ntawv tshiab: Tshawb nrhiav thiab tsim cov ntaub ntawv tshiab kom tau raws li cov kev xav tau tshwj xeeb, xws li siv nyob rau hauv siab - kub thiab siab - ib puag ncig siab.
5. Txhim kho kev tswj kom zoo: Los ntawm kev qhia cov cuab yeej tshawb nrhiav thiab kev tswj xyuas kom zoo, xyuas kom meej qhov zoo thiab ua tau zoo ntawm precision- nrum qhov chaw.
VI. Kev daws teeb meem ntsib cov khoom siv hauv tsev Precision Casting
(1) Cov txheej txheem qis thiab tsis zoo precision casting khoom zoo
1. Cov kab nrib pleb hnyav heev . 2. Kev sib cais hnyav thiab suav nrog hauv cov castings loj. Loj cam khwb cia hlau qhov chaw thiab cov hlau loj loj muaj macroscopic cais thiab ntxhib grain teeb meem ntawm lub hauv paus ntawm riser thiab tuab seem ntawm cov casting tom qab solidification . 3. Tsis txaus daim ntawv thov ntawm simulation software. Casting txheej txheem simulation yog ib kauj ruam tsim nyog hauv casting ntau lawm. Nyob rau hauv txawv teb chaws, tsis muaj computer simulation tshuab, tsis muaj kev txiav txim yuav tau txais. Tuam Tshoj txoj kev lag luam casting pib lub computer simulation thaum ntxov, txawm hais tias qhov tseem ceeb ntawm kev suav ib feem muaj kev txhim kho muaj peev xwm, tag nrho cov software ntim muaj peev xwm tsis zoo, ua rau kev txhim kho ntawm cov lag luam paub tab lag luam nyob deb ntawm cov teb chaws tsim. Muaj coob tus ntawm cov tuam txhab casting yog tsis txaus siab txog computer simulation technology thiab tsis muaj kev ntseeg siab. Tam sim no, qhov xwm txheej no tau txhim kho me ntsis, tab sis ntawm cov tuam txhab lag luam uas tau yuav cov software simulation, cov uas tuaj yeem siv nws tseem tsis tshua muaj. Nws yog ib qho tsim nyog yuav tsum tau muab kev cob qhia software rau cov neeg ua haujlwm.
4. Ntau lub peev xwm ntau lawm rau cov khoom siv zoo tib yam, thaum tsim khoom siab -precision castings tseem nyuaj. Cov thev naus laus zis tseem ceeb thiab cov khoom tseem ceeb tseem cia siab rau kev xa khoom.
5. Loj machining nyiaj pub dawb hauv precision casting. Vim tsis muaj kev taw qhia kev tsim qauv, cov txheej txheem tsim pom tias nws nyuaj rau kev tswj cov teeb meem deformation raws li kev paub dhau los. Lub machining nyiaj pub rau casting yog feem ntau 1-3 zaug loj dua cov nyob rau txawv teb chaws. Loj machining nyiaj pub rau kev siv hluav taws xob loj thiab siv cov khoom siv, kev ua haujlwm ntev, thiab kev ua haujlwm tsawg, ua rau lub hwj chim rau txoj kev loj hlob ntawm kev lag luam.
6. Kev tsim tsis txaus ntawm cov txheej txheem pouring. Vim yog tsim tsis tsim nyog, muaj qhov tsis xws luag xws li entrained gas thiab inclusions, uas ua rau qis casting tso zis thiab tsim nyog tus nqi.
(3) Kev siv hluav taws xob ntau thiab siv cov khoom siv raw
Lub zog noj nyob rau hauv precision casting kev lag luam tso nyiaj rau 25% mus rau 30% ntawm tag nrho cov zog siv nyob rau hauv cov neeg kho tshuab kev lag luam. Qhov nruab nrab ntawm kev siv hluav taws xob yog 17%, thiab kev siv hluav taws xob yog kwv yees li ob zaug ntawm cov teb chaws tshaj tawm. Kev siv hluav taws xob rau kev tsim 1 tuj ntawm qhov tsim nyog cam khwb cia hlau qhov chaw yog 550 txog 700 kilograms ntawm cov qauv thee, thaum nyob rau txawv teb chaws nws yog 300 mus rau 400 kilograms ntawm cov qauv thee. Kev siv hluav taws xob rau kev tsim 1 tuj ntawm cov khoom tsim nyog cam khwb cia hlau yog 800 txog 1000 kilograms ntawm cov qauv thee, thaum nyob rau txawv teb chaws nws yog 500 txog 800 kilograms ntawm cov qauv thee. Raws li kev txheeb cais, cov tswv yim ntawm cov ntaub ntawv thiab lub zog hauv cov txheej txheem casting suav txog kwv yees li 55% txog 70% ntawm tag nrho cov khoom tsim tawm. Qhov hnyav tag nrho ntawm castings nyob rau hauv Tuam Tshoj yog nyob rau nruab nrab 10% mus rau 20% siab tshaj nyob rau hauv txawv teb chaws lub teb chaws, thiab qhov nruab nrab txheej txheem tso zis tus nqi ntawm cam khwb cia hlau qhov chaw yog 55%, thaum nws muaj peev xwm ncav cuag 70% nyob rau hauv txawv teb chaws. Cov khoom siv raw thiab cov roj siv hauv cov txheej txheem casting feem ntau suav nrog npua hlau, seem hlau, coke, limestone, molding xuab zeb, tub ntxhais xuab zeb, thiab lwm yam. Kev thauj mus los, kev sib xyaw ntawm cov xuab zeb, molding, core ua, ci, melting, pouring, txias, tu, thiab post- cov txheej txheem no muaj xws li mechanical vibration thiab suab nrov. Qee qhov kev ua haujlwm tau ua nyob rau hauv siab - kub melting thiab pouring tej yam kev mob, thiab ib co ua rau irritating tsw. Qhov chaw ua haujlwm nrog plua plav yog qhov hnyav dua. Tag nrho cov no qhia qhov hnyav ntawm ib puag ncig teeb meem nyob rau hauv Tuam Tshoj tus precision casting kev lag luam. Kev siv cov thev naus laus zis siab heev kom ua tiav ntsuab casting yog qhov teeb meem tseem ceeb uas yuav tsum tau tsom mus rau thiab daws tam sim no. Nrog rau kev hloov pauv sai thiab txhim kho ntawm Tuam Tshoj txoj kev lag luam casting, precision casting tuam txhab yuav tsum tau siv zog hauv kev txhim kho qib kev tswj hwm, txhim kho cov txheej txheem yoog raws, txo kev cia siab rau ntawm - thaj chaw neeg ua haujlwm, ntxiv dag zog rau cov peev txheej tshwj xeeb, txhim kho cov neeg ua haujlwm ua haujlwm ib puag ncig, txo kev siv zog, thiab ua kom muaj kev tiv thaiv ib puag ncig. Tshwj xeeb, lawv yuav tsum muab qhov tseem ceeb rau kev tshawb fawb thiab kev tsim kho thev naus laus zis thiab kev khaws cia ntawm cov neeg ua haujlwm thev naus laus zis, muab kev txhawb nqa tib neeg thiab kev txawj ntse rau lub sijhawm ntev - txhim kho kev lag luam.