Qhov tseeb ntawm cov hniav aero engine muaj feem cuam tshuam nrog kev ua haujlwm tag nrho ntawm lub tshuab, thiab kev ntsuas peb-seem ntawm qib 0.1μm tau dhau los ua qhov yuav tsum tau ua tseem ceeb. Cov platform ib txwm nyuaj rau ua raws li cov qauv. Cov platform granite, nrog lawv peb qhov zoo tseem ceeb, muab kev txhawb nqa txhim khu kev qha rau kev kuaj pom tseeb.
Kev ruaj khov ntawm thermal ua rau lub hauv paus meej. Tus coefficient ntawm thermal expansion ntawm granite tsuas yog (4-8) × 10⁻⁶/℃, uas yog ntau dua 60% qis dua li ntawm cov hlau. Hauv qab qhov kub hloov pauv ntawm ± 1 ℃, qhov kev hloov pauv loj ntawm lub platform 1-meter-ntev yog tsawg dua 0.008μm, uas tuaj yeem muab qhov chaw siv tas mus li rau cov khoom siv xws li laser interferometers thiab peb-coordinate measuring machines, zam kev sib sau ua ke ntawm kev ntsuas yuam kev los ntawm thermal deformation. Lub caij no, nws qhov ceev ncav cuag 2.6-2.8g / cm³, nws lub zog compressive tshaj 200MPa, nws yog hnav-resistant, thiab ua kom ntseeg tau tias qhov tseeb tseem tsis hloov pauv dhau kev siv mus sij hawm ntev.
Kev tiv taus kev co zoo heev thiab kev cais tawm kev cuam tshuam ib puag ncig. Lub chaw ua haujlwm dav hlau co ntau zaus. Cov qauv siv lead ua tshwj xeeb ntawm granite ua rau nws qhov piv txwv damping ncav cuag 0.05-0.1, uas yog 5-10 npaug ntawm cov hlau. Nws tuaj yeem txo ntau dua 90% ntawm lub zog co hauv 0.3 vib nas this. Piv txwv li, thaum ntsuas nrog lub laser tracker, thaum ua ke nrog lub platform granite, qhov teeb meem laser offset tuaj yeem tswj tau hauv ± 0.02μm, txhim kho qhov tseeb ntawm kev ntsuas ntawm cov yuam kev profile hniav.
Kev koom ua ke ntawm kev ua haujlwm precision thiab kev txawj ntse ua rau kev ua haujlwm zoo dua. Tom qab kev ua tiav ultra-precision xws li magnetorheological polishing, qhov tiaj tiaj ntawm lub platform granite ncav cuag ± 0.1μm / m, thiab qhov roughness ntawm qhov chaw Ra yog ≤0.02μm. Tom qab ua ke nrog nanoscale grating rulers thiab AI algorithms, qhov tseeb ntawm kev ntsuas ib qho taw tes ncav cuag 0.05μm, qhov yuam kev tag nrho raug txo kom ± 0.1μm, qhov kev ua haujlwm pom tau nce 30%, thiab qhov tsis xws luag pom tau nce mus txog 99.9%.
Cov platform granite, nrog lawv cov kev ua tau zoo ruaj khov thiab txhim khu kev qha, tiv thaiv qhov kev ntsuas tseeb ntawm cov hniav aero engine, txhawb kev txhim kho ntawm kev tsim khoom siv dav hlau, thiab pab kev lag luam ncav cuag qhov siab tshiab.
Lub sijhawm tshaj tawm: Tsib Hlis-22-2025