Daim ntawv thov tshwj xeeb ntawm cov hlau txhuas castings hauv spacecraft

Daim ntawv thov tshwj xeeb ntawm Kev Ua Txhuas Txhuass nyob rau hauv spacecraft

Nrog rau kev loj hlob sai ntawm kev siv tshuab aerospace, cov khoom siv aluminium alloy castings Cov hlau txhuas tau siv ntau zuj zus hauv kev tsim khoom siv hauv ntiaj teb. Cov hlau txhuas tau dhau los ua cov khoom siv tseem ceeb hauv kev tsim khoom siv hauv ntiaj teb vim lawv cov khoom siv lub cev thiab lub cev tshwj xeeb. Tsab xov xwm no yuav tham txog cov ntsiab lus tshwj xeeb ntawm kev siv cov hlau txhuas hauv ntiaj teb, nrog rau cov txiaj ntsig thiab cov kev taw qhia kev loj hlob yav tom ntej uas lawv coj los.

1. Cov txiaj ntsig ntawm cov hlau txhuas castings hauv spacecraft

(Kuv) Lub teeb thiab muaj zog

Aluminium alloy yog ib yam khoom siv hlau uas tsis hnyav thiab muaj zog heev. Nws lub zog tshwj xeeb tsuas yog li ib feem peb ntawm cov hlau, tab sis nws lub zog tshwj xeeb yog li 35% siab dua li cov hlau carbon ib txwm. Nws muaj cov khoom siv kho tshuab zoo heev xws li lub zog tensile thiab lub zog tawm los. Kev siv cov txhuas alloys tuaj yeem txo qhov hnyav tag nrho ntawm cov dav hlau thiab txhim kho lub peev xwm thauj khoom thiab kev ua tau zoo ntawm kev ya dav hlau. Piv txwv li, 44% ntawm qhov hnyav ntawm lub fuselage ntawm Airbus's A380 lub dav hlau neeg caij tsheb yog ua los ntawm txhuas alloys.

(II) Kev tiv thaiv xeb zoo heev
Cov hlau txhuas muaj kev tiv thaiv xeb zoo thiab ua siab ntev rau feem ntau cov kua qaub thiab alkalis. Qhov no tseem ceeb heev rau cov dav hlau uas ua haujlwm hauv huab cua ntev. Cov khoom siv hlau txhuas tuaj yeem siv los tsim lub plhaub sab nraud ntawm lub dav hlau, nrog rau cov brackets thiab plhaub ntawm ntau yam cuab yeej dav hlau.
(III) Kev ua tau zoo ntawm cov cua sov
Lub thermal conductivity ntawm aluminium alloy yog qhov zoo heev, uas ua rau nws muaj peev xwm tsim qee qhov chaw uas xav tau kev ua haujlwm hloov pauv cua sov siab, xws li cov dab dej cua sov, cov cua txias thiab cov kav dej hloov pauv cua sov hauv cov cav dav hlau.
(IV) Yooj yim ntawm kev ua thiab kev tsim tau
Cov hlau txhuas muaj cov yas zoo thiab kev siv tshuab zoo, uas ua rau nws yooj yim rau kev tsim ua tej daim ntawm ntau yam duab thiab qhov loj. Tsis tas li ntawd, cov hlau txhuas tuaj yeem ua tiav los ntawm ntau txoj kev ua tiav, xws li extrusion, ncab, kos duab txias, vuam, casting thiab lwm yam.

2. Daim ntawv thov tshwj xeeb ntawm cov khoom siv txhuas ua los ntawm cov hlau hauv chaw tsav dav hlau
(I) Cov khoom siv cav
Aluminium Kev Ua Zoo Tshaj Plaws ntawm Cov Hlau Kev siv cov txheej txheem casting yog siv dav hauv kev tsim cov khoom siv cav, xws li cov hniav turbine, cov vanes coj kev nkag thiab cov turbine disks. Cov txheej txheem casting precision tuaj yeem tsim cov khoom ntawm cov duab nyuaj thiab xyuas kom meej lawv qhov tseeb thiab qhov zoo ntawm qhov chaw, yog li txhim kho kev ua tau zoo thiab kev ua haujlwm ntawm lub cav. Piv txwv li, lub turbine disk yog ib qho tseem ceeb uas yuav tsum muaj lub zog siab thiab lub teeb vim nws yuav tsum tau tiv taus qhov kub thiab txias siab heev. Aluminium alloy tuag casting yog ib qho txheej txheem tsim khoom zoo tagnrho rau kev tsim cov turbine disks zoo, cov duab nyuaj.
(II) Cov khoom siv hauv kev tsav dav hlau
Cov txheej txheem casting precision aluminium alloy kuj tseem siv tau los tsim cov khoom siv dav hlau, xws li cov khoom sib txuas fuselage, cov qauv txhawb nqa thiab cov roj tank. Kev casting precision tuaj yeem txo qhov hnyav ntawm cov khoom, txhim kho lub zog thiab kev nruj ntawm cov qauv, thiab muab lub dav hlau ua tau zoo dua thiab kev siv roj tsawg. Piv txwv li, 44% ntawm qhov hnyav ntawm lub fuselage ntawm Airbus's A380 lub dav hlau caij tsheb yog ua los ntawm txhuas alloy.
(III) Cov khoom siv dav hlau
Kev ua cov hlau txhuas precision casting kuj ua lub luag haujlwm tseem ceeb hauv kev tsim cov khoom siv aerospace. Piv txwv li, kev tsim cov spacecraft thrusters, navigation Cheebtsam thiab tsaws khoom. Cov txheej txheem precision casting tuaj yeem ua kom ntseeg tau qhov tseeb thiab kev ntseeg tau ntawm cov khoom siv no thiab ua tau raws li cov kev cai nruj ntawm cov haujlwm hauv chaw.
(IV) Cov khoom siv satellite
Cov khoom siv tuag casting aluminium alloy kuj tau siv dav hauv kev tsim cov satellites aerospace thiab cov khoom siv foob pob hluav taws. Piv txwv li, lub plhaub sab nraud ntawm lub satellite feem ntau yog ua los ntawm cov khoom siv tuag casting aluminium muaj zog heev. Tsis tas li ntawd, cov thrusters thiab cov khoom siv navigation kuj yuav tsum siv cov khoom siv tuag casting aluminium alloy kom ntseeg tau tias lawv lub teeb thiab ruaj khov.

3. Cov ntaub ntawv thov ntawm cov hlau txhuas castings hauv spacecraft
(I) Kev tsim khoom siv thev naus laus zis thiab cov khoom lag luam ntawm cov khoom tseem ceeb ntawm cov khoom sib xyaw ua ke rau lub dav hlau
Qhov project no tau ua kev tshawb fawb txog kev tsim cov thev naus laus zis ntawm lub hau npog thiab lub plhaub qis dua uas ua los ntawm txhuas alloy uas muaj zog heev thiab zoo, lub cabin uas muaj phab ntsa nyias nyias thiab lub tank roj uas ua los ntawm txhuas alloy uas sib xyaw ua ke, thiab lub cabin magnesium alloy uas ua los ntawm txhuas alloy uas loj thiab sib xyaw ua ke rau cov khoom tseem ceeb uas muaj phab ntsa nyias nyias ntawm cov koob hlau uas muaj zog heev rau lub dav hlau. Muaj ntau yam khoom siv tshiab uas ua los ntawm txhuas-magnesium alloy casting, suav nrog lub hau npog thiab lub plhaub qis dua uas ua los ntawm txhuas alloy, lub cabin uas muaj phab ntsa nyias nyias ntev, lub tank roj uas sib xyaw ua ke, lub tank roj uas sib xyaw ua ke, lub tank roj uas sib xyaw ua ke, lub cabin servo, II-III theem sib txuas, II ntu ntu, thiab lub cabin magnesium alloy thib ob thiab lub plhaub thib tsib ntawm lub cabin. Cov thev naus laus zis no tau txhim kho qib ntawm cov thev naus laus zis tsim khoom zoo hauv kuv lub tebchaws thiab txhawb kev nce qib hauv kev lag luam.
(II) Kev nce qib tshiab thiab kev siv tshuab aviation aluminium alloy die-casting hauv kev lag luam
Nyob rau xyoo tas los no, kev siv tshuab aviation aluminium alloy die-casting tau ua ntau yam kev tshawb fawb tseem ceeb, muab kev daws teeb meem tshiab rau kev lag luam aerospace. Piv nrog cov txheej txheem casting ib txwm muaj, kev siv tshuab aviation aluminium alloy die-casting niaj hnub muaj cov txiaj ntsig tseem ceeb hauv qab no: kev tshawb fawb hauv cov khoom siv, nrog lub zog tensile ncav cuag 450-550MPa, elongation nce mus txog 8-12%, lub neej qaug zog nce 3-5 zaug, thiab anisotropy txo qis dua 10%; kev tsim kho tshiab ntawm cov txheej txheem, siv cov tshuab nqus tsev siab-siab die-casting (porosity