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Hauv kev lag luam ntawm precision manufacturing thiab tshuaj xyuas, thermal deformation kev ua tau zoo ntawm cov ntaub ntawv yog qhov tseem ceeb ntawm kev txiav txim siab qhov tseeb thiab kev ntseeg siab ntawm cov khoom siv. Granite thiab cam khwb cia hlau, raws li ob feem ntau siv cov khoom siv hauv kev lag luam, tau nyiam ntau yam rau lawv qhov kev ua tau zoo sib txawv hauv qhov chaw kub kub. Txhawm rau pom cov yam ntxwv thermal deformation ntawm ob qho tib si, peb siv tus kws tshaj lij thermal imager los ua qhov kev sim ua haujlwm tas li 8-teev ntawm granite thiab cam khwb cia hlau platforms ntawm tib lub ntsiab lus, nthuav tawm qhov sib txawv ntawm cov ntaub ntawv thiab cov duab. cov
Kev sim tsim: Simulate hnyav ua hauj lwm tej yam kev mob thiab raug ntes qhov sib txawv
Rau qhov kev sim no, granite thiab cam khwb cia hlau platforms nrog qhov ntev ntawm 1000mm × 600mm × 100mm raug xaiv. Nyob rau hauv ib puag ncig kev lag luam simulated (kub 25 ± 1 ℃, av noo 50% ± 5%), los ntawm kev sib faib cov cua sov ntawm lub platform nto (simulating lub tshav kub tsim thaum lub sij hawm siv khoom), lub platform ua hauj lwm tsis tu ncua ntawm lub zog ntawm 100W rau 8 teev. Lub FLIR T1040 thermal imager (nrog rau qhov kub thiab txias ntawm 0.02 ℃) thiab high-precision laser displacement sensor (nrog qhov tseeb ntawm ± 0.1μm) tau siv los saib xyuas qhov kub thiab txias ntawm lub platform deformation ntawm lub sijhawm, thiab cov ntaub ntawv raug kaw ib zaug txhua 30 feeb. cov
Ntsuas cov txiaj ntsig: Pom qhov kub qhov sib txawv thiab ntsuas qhov sib txawv deformation
Cov ntaub ntawv los ntawm thermal imager qhia tau hais tias tom qab lub cam khwb cia hlau platform tau ua hauj lwm rau ib teev, qhov siab tshaj plaws saum npoo kub tau mus txog 42 ℃, uas yog 17 ℃ siab tshaj qhov pib kub. Yim teev tom qab ntawd, qhov kub thiab txias tau nce mus txog 58 ℃, thiab qhov sib txawv ntawm qhov kub thiab txias gradient faib tawm, nrog rau qhov kub sib txawv ntawm 8 ℃ ntawm ntug thiab qhov chaw. Cov txheej txheem cua sov ntawm granite platform yog maj mam dua. Qhov kub tsuas yog nce mus rau 28 ℃ tom qab 1 teev thiab stabilizes ntawm 32 ℃ tom qab 8 teev. Qhov kub ntawm qhov sib txawv yog tswj tsis pub dhau 2 ℃. cov
Raws li cov ntaub ntawv deformation, nyob rau hauv 8 teev, ntsug deformation nyob rau hauv nruab nrab ntawm lub cam khwb cia hlau platform mus txog 0.18mm, thiab warping deformation ntawm ntug yog 0.07mm. Hauv qhov sib piv, qhov siab tshaj plaws deformation ntawm granite platform tsuas yog 0.02mm, tsawg dua 1/9 ntawm cov hlau cam khwb cia. Lub sijhawm tiag tiag ntawm lub laser hloov pauv sensor kuj lees paub qhov tshwm sim no: Lub deformation nkhaus ntawm cov cam khwb cia hlau platform fluctuates sharply, thaum lub nkhaus ntawm granite platform yog ze li ntawm ruaj khov, ua kom pom tseeb thermal stability. cov
Cov ntsiab lus tsom xam: Cov khoom siv txiav txim siab qhov sib txawv ntawm thermal deformation
Lub hauv paus ua rau qhov tseem ceeb ntawm thermal deformation ntawm cam khwb cia hlau yog nyob rau hauv nws cov coefficient siab ntawm thermal expansion (kwv yees li 10-12 × 10⁻⁶ / ℃), thiab qhov tsis sib xws ntawm graphite sab hauv, uas ua rau cov cua kub tsis sib xws thiab tsim cov thermal stress concentration hauv zos. Lub caij no, cam khwb cia hlau muaj qhov tshwj xeeb kub muaj peev xwm, thiab nws qhov kub thiab txias nce sai dua thaum nqus cov cua sov tib yam. Nyob rau hauv sib piv, tus coefficient ntawm thermal expansion ntawm granite tsuas yog (4-8) × 10⁻⁶ / ℃. Nws cov qauv siv lead ua yog ntom thiab tsis sib xws, nrog qis thiab sib npaug sib npaug ntawm cov khoom siv hluav taws xob. Ua ke nrog nws cov yam ntxwv tshwj xeeb ntawm cov cua sov tshwj xeeb, nws tseem tuaj yeem ua kom muaj kev ruaj ntseg nyob rau hauv qhov chaw kub kub. cov
Application enlightenment: Kev xaiv txiav txim siab precision, stability tsim tus nqi
Nyob rau hauv cov khoom xws li precision tshuab cuab yeej thiab peb-coordinate ntsuas tshuab, lub thermal deformation ntawm cam khwb cia hlau puag tuaj yeem ua rau kev ua haujlwm lossis kev soj ntsuam yuam kev, cuam tshuam cov txiaj ntsig ntawm cov khoom tsim nyog. Lub hauv paus granite, nrog nws cov thermal stability zoo, tuaj yeem ua kom ntseeg tau tias cov cuab yeej tswj tau siab precision thaum lub sijhawm ua haujlwm ntev. Tom qab qee qhov chaw tsim khoom hauv tsheb tau hloov lub cam khwb cia hlau platform nrog granite platform, qhov kev ua yuam kev qhov seem ntawm qhov raug txo qis los ntawm 3.2% mus rau 0.8%, thiab cov khoom siv tau nce 15%. cov
Los ntawm kev nthuav qhia intuitive thiab meej ntsuas ntawm thermal imager, qhov sib txawv ntawm thermal deformation ntawm granite thiab cam khwb cia hlau yog tam sim ntawd pom tseeb. Nyob rau hauv niaj hnub kev lag luam uas nrhiav qhov kawg precision, xaiv granite cov ntaub ntawv uas muaj zog thermal stability yog undoubtedly ib tug ntse txav los txhim kho cov khoom ua tau zoo thiab xyuas kom meej cov khoom zoo.
Post lub sij hawm: May-24-2025