Kev tshuaj xyuas cov hniav ntawm lub cav aero muaj qhov yuav tsum tau ua kom ruaj khov, raug thiab ntseeg tau ntawm lub platform. Piv nrog rau cov platform tshuaj xyuas ib txwm muaj xws li hlau cam khwb cia thiab txhuas alloy, cov platform granite qhia tau tias muaj qhov zoo tseem ceeb hauv ntau yam cim tseem ceeb.
I. Kev Ruaj Ntseg Kub: Ib "Tiv Thaiv Ntuj" Tiv Thaiv Kev Cuam Tshuam Kub
Tus coefficient ntawm thermal expansion ntawm cov hlau cam khwb cia platforms yog kwv yees li 10-12 × 10⁻⁶/℃, thiab ntawm cov txhuas alloys yog siab txog 23 × 10⁻⁶/℃. Nyob rau hauv lub cua sov tsim los ntawm kev ua haujlwm ntawm cov khoom siv kuaj pom lossis kev hloov pauv ntawm qhov kub thiab txias ib puag ncig, qhov kev hloov pauv ntawm qhov ntev yog qhov tshwm sim, ua rau muaj qhov yuam kev kuaj pom. Tus coefficient ntawm thermal expansion ntawm lub granite platform tsuas yog (4-8) × 10⁻⁶/℃. Hauv qhov kub thiab txias ntawm ± 5 ℃, qhov kev hloov pauv ntawm qhov ntev ntawm 1-meter-ntev granite platform yog tsawg dua 0.04μm, uas yuav luag tsis quav ntsej. Qhov kev nthuav dav thermal ultra-low no muab qhov chaw ruaj khov rau cov khoom siv precision xws li laser interferometers thiab peb-coordinate ntsuas tshuab, zam kev ntsuas deviations ntawm cov hniav contours los ntawm thermal deformation.
II. Kev Ua Haujlwm Tiv Thaiv Kev co: Ib qho "Kev Tiv Thaiv Zoo" rau Kev Tshem Tawm Kev Cuam Tshuam Kev co
Hauv lub chaw ua haujlwm tsim khoom siv dav hlau, kev co ntawm ib puag ncig los ntawm kev siv cov cuab yeej tshuab thiab kev txav mus los ntawm cov neeg ua haujlwm feem ntau tshwm sim. Cov platforms txhuas alloy tsis muaj kev ruaj khov txaus, thiab cov platforms hlau cam khwb cia muaj kev ua haujlwm damping tsawg, ua rau nws nyuaj rau buffer kev co zoo. Cov qauv siv lead ua ke hauv lub platform granite muab nws nrog cov yam ntxwv damping zoo heev, nrog rau qhov piv damping ntawm 0.05-0.1, uas yog tsib zaug ntawm cov hlau cam khwb cia thiab kaum zaug ntawm cov hlau txhuas alloy. Thaum cov kev co sab nraud raug xa mus rau lub platform, nws tuaj yeem txo qhov kev co zog los ntawm ntau dua 90% hauv 0.3 vib nas this, kom ntseeg tau tias cov khoom siv kuaj pom tseem tuaj yeem tso tawm cov ntaub ntawv raug hauv qhov chaw vibrating.
Iii. Kev Rigidity thiab Kev Tiv Thaiv Kev Hnav: Ib qho "Ruaj Khoov" Ua Kom Muaj Kev Ntsuas Ntev
Tom qab siv tau ib ntus, lub platform hlau cam khwb cia yuav muaj qhov tawg ntawm qhov nkees, uas cuam tshuam rau nws qhov tseeb. Cov platform hlau cam khwb cia muaj qhov nyuaj tsawg thiab tsis yooj yim hnav, ua rau nws nyuaj rau tiv taus kev siv cov khoom siv tshuaj xyuas hnyav. Lub platform granite muaj qhov ceev 2.6-2.8g / cm³, nws lub zog compressive tshaj 200MPa, thiab nws qhov nyuaj Mohs yog 6-7. Thaum raug cov khoom hnyav thiab kev sib txhuam ntev los ntawm cov khoom siv tshuaj xyuas hniav, nws tsis yooj yim hnav lossis deformation. Cov ntaub ntawv los ntawm ib lub tuam txhab dav hlau qhia tau hais tias tom qab siv tas li rau yim xyoo, qhov kev hloov pauv ntawm lub platform granite tseem tswj tau hauv ± 0.1μm / m, thaum lub platform hlau cam khwb cia yuav tsum tau rov kho dua tom qab peb xyoos xwb.
Iv. Kev Ruaj Ntseg Tshuaj: Lub "Lub Pob Zeb Ruaj Khob" rau Kev Hloov Kho Rau Ib puag ncig Nyuaj
Cov tshuaj reagents xws li cov neeg ua haujlwm ntxuav thiab cov roj nplua nyeem feem ntau siv rau hauv cov chaw ua haujlwm tshuaj xyuas kev ya dav hlau. Cov platforms txhuas alloy yog cov yooj yim rau xeb, thiab cov platforms hlau cam khwb cia kuj tseem yuav raug cuam tshuam rau qhov tseeb vim yog oxidation thiab xeb. Granite feem ntau yog tsim los ntawm cov zaub mov xws li quartz thiab feldspar. Nws muaj cov khoom siv tshuaj ruaj khov, pH kam rau siab ntawm 1 txog 14, thiab tuaj yeem tiv taus kev yaig ntawm cov tshuaj lom neeg. Tsis muaj hlau ion nag lossis daus ntawm nws qhov chaw, ua kom muaj ib puag ncig nrhiav pom huv si thiab zam kev ntsuas yuam kev los ntawm kev ua qias tuaj ntawm tshuaj lom neeg.
V. Kev Ua Haujlwm Tseeb: Lub "Puag Ncig Zoo Tshaj Plaws" rau kev ntsuas qhov tseeb
Los ntawm cov thev naus laus zis ultra-precision xws li magnetorheological polishing thiab ion beam processing, granite platforms tuaj yeem ua tiav qhov tseeb ntawm ± 0.1μm / m rau flatness thiab Ra≤0.02μm rau qhov roughness ntawm qhov chaw, ntau dua li ntawm cov hlau cam khwb cia platforms (± 1μm / m rau flatness) thiab aluminium alloy platforms (± 2μm / m rau flatness). Qhov chaw siab-precision no muab qhov tseeb installation rau cov sensors siab-precision thiab kev ntsuas probes, pab txhawb kev paub txog kev ntsuas peb-seem ntawm aero-engine blades ntawm qib 0.1μm.
Hauv cov xwm txheej uas xav tau ntau ntawm kev tshuaj xyuas lub cav aero, cov platform granite, nrog rau lawv cov txiaj ntsig zoo hauv kev ruaj khov thermal, kev tiv thaiv kev co, kev ruaj khov, kev ruaj khov tshuaj lom neeg thiab kev ua tiav, tau dhau los ua qhov kev xaiv zoo tshaj plaws los xyuas kom meej qhov tseeb ntawm kev tshuaj xyuas thiab kev ntseeg tau, tso lub hauv paus ruaj khov rau kev txhim kho zoo ntawm kev tsim khoom siv dav hlau.
Lub sijhawm tshaj tawm: Tsib Hlis-22-2025