Nyob rau hauv lub teb ntawm high-end metrology, qhov tseeb yog qhov tseem ceeb rau kev ntsuas tus nqi ntawm cov khoom siv. Nyob rau hauv xyoo tas los no, 95% ntawm high-end metering cov cuab yeej tau tso tseg cov tsoos cam khwb cia hlau puag thiab es tsis txhob saws granite bases. Tom qab qhov kev hloov pauv kev lag luam no yog qhov kev ua tiav thev naus laus zis los ntawm nano-theem damping yam ntxwv ntawm granite hauv paus. Cov kab lus no yuav tshawb xyuas qhov tshwj xeeb zoo ntawm granite hauv paus thiab nthuav tawm qhov paub tsis meej tom qab lawv dhau los ua "kev nyiam tshiab" ntawm cov cuab yeej ntsuas qib siab.
Cov kev txwv ntawm cam khwb cia hlau puag: Nws yog ib qho nyuaj rau ua tau raws li high-end metering yuav tsum tau
Cam khwb cia hlau yog ib zaug cov khoom siv tseem ceeb rau lub hauv paus ntawm cov cuab yeej ntsuas thiab tau siv dav vim nws cov nqi qis thiab kev ua haujlwm yooj yim. Txawm li cas los xij, hauv cov xwm txheej ntsuas high-end, cov kev txwv ntawm cam khwb cia hlau tau dhau los ua qhov tseem ceeb. Ntawm ib sab, cam khwb cia hlau tsis zoo thermal stability, nrog thermal expansion coefficient siab li 11-12 × 10⁻⁶ / ℃. Thaum cov cuab yeej tsim hluav taws xob thaum lub sijhawm ua haujlwm lossis qhov ntsuas kub hloov pauv, nws yooj yim rau thermal deformation, uas ua rau qhov sib txawv ntawm qhov ntsuas ntsuas. Ntawm qhov tod tes, cov qauv sab hauv ntawm cam khwb cia hlau muaj cov pores microscopic, thiab nws cov kev co damping kev ua haujlwm tsis txaus, ua rau nws tsis tuaj yeem nqus cov kev cuam tshuam sab nraud. Thaum kev ua haujlwm ntawm cov cuab yeej siv tshuab thiab kev txav ntawm cov tsheb hauv kev cob qhia ua kom muaj kev vibrations, lub hauv paus hlau cam khwb cia yuav xa cov kev vibrations rau cov khoom siv ntsuas, ua rau muaj kev hloov pauv ntawm cov ntaub ntawv ntsuas thiab ua rau nws nyuaj rau kev ua kom tau raws li qhov yuav tsum tau muaj kev ntsuas siab ntawm nanometer thiab micrometer.
Nanoscale damping yam ntxwv ntawm granite hauv paus: Lub hauv paus lav rau kev ntsuas meej
Granite yog lub pob zeb ntuj tsim los ntawm cov txheej txheem geological ntau pua lab xyoo. Nws cov ntxhia pob zeb hauv av yog compact thiab nws cov qauv yog tuab thiab zoo ib yam, endowing nws nrog zoo nano-scale damping zog. Thaum cov kev co sab nraud raug xa mus rau lub hauv paus granite, nws cov microstructure sab hauv tuaj yeem hloov lub zog ntawm kev co mus rau hauv thermal zog, ua kom muaj txiaj ntsig attenuation. Piv nrog cam khwb cia hlau, lub sij hawm vibration teb ntawm granite hauv paus yog luv luv los ntawm ntau tshaj 80%, thiab lawv tuaj yeem rov qab mus rau lub xeev ruaj khov nyob rau lub sijhawm luv luv, kom tsis txhob muaj kev cuam tshuam ntawm kev co ntawm kev ntsuas qhov tseeb ntawm cov cuab yeej ntsuas.
Los ntawm qhov kev xav ntawm microscopic, cov qauv siv lead ua ntawm granite muaj ntau ntawm cov kab me me ciam teb thiab cov ntxhia hauv cov ntxhia, thiab cov qauv tsim no tsim lub ntuj "kev nqus nqus network". Thaum cov vibration nthwv dej nthuav tawm hauv granite, lawv yuav sib tsoo, xav txog thiab tawg nrog cov kab lis kev cai thiab cov khoom ntau zaus. Lub zog vibration yog tas li noj nyob rau hauv cov txheej txheem no, yog li ua tiav cov nyhuv ntawm kev co damping. Cov kev tshawb fawb qhia tau hais tias lub hauv paus granite tuaj yeem txo qhov kev vibration amplitude kom tsawg tshaj li ib feem kaum ntawm qhov qub, muab qhov chaw ntsuas ruaj khov rau cov khoom siv ntsuas.
Lwm qhov zoo ntawm granite hauv paus: Ua tau raws li qhov xav tau siab kawg
Ntxiv nrog rau nws qhov zoo tshaj plaws nanoscale damping zog, lub hauv paus granite kuj muaj ntau yam zoo, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov khoom siv ntsuas qib siab. Nws coefficient ntawm thermal expansion yog tsawg heev, tsuas yog 5-7 × 10⁻⁶ / ℃, thiab nws yuav luag tsis cuam tshuam los ntawm kev hloov kub. Nws tuaj yeem tswj xyuas qhov loj me thiab cov duab zoo nyob rau hauv ib puag ncig sib txawv, kom ntseeg tau qhov tseeb ntawm kev siv ntsuas. Lub caij no, granite muaj hardness siab (nrog Mohs hardness ntawm 6-7) thiab muaj zog hnav tsis kam. Txawm tias tom qab siv mus ntev, nws qhov chaw tseem tuaj yeem tswj tau lub xeev siab-precision planar, txo qhov zaus ntawm cov khoom tu thiab calibration. Tsis tas li ntawd, granite muaj cov tshuaj ruaj khov thiab tsis yooj yim corroded los ntawm acidic lossis alkaline tshuaj, ua rau nws haum rau ntau yam kev lag luam ib puag ncig.
Kev lag luam kev lag luam tau txheeb xyuas qhov txiaj ntsig zoo ntawm granite hauv paus
Nyob rau hauv lub tshav pob ntawm semiconductor manufacturing, qhov luaj li cas ntawm cov chips tau nkag mus rau nanoscale era, thiab cov precision yuav tsum tau rau metrology cov cuab yeej muaj siab heev. Tom qab lub tuam txhab paub zoo thoob ntiaj teb semiconductor hloov cov cuab yeej ntsuas ntsuas nrog lub hauv paus hlau cam khwb cia nrog granite puag, qhov kev ntsuas yuam kev poob ntawm ± 5μm mus rau ± 0.5μm, thiab cov khoom lag luam tawm los ntawm 12%. Nyob rau hauv aerospace teb, high-end metrology cov cuab yeej siv rau kev soj ntsuam cov duab thiab txoj hauj lwm tolerances ntawm lub Cheebtsam, tom qab txais yuav granite bases, zoo tsis txhob vibration cuam tshuam, xyuas kom meej cov txheej txheem ntawm cov khoom tseem ceeb xws li aircraft cav hniav thiab fuselage thav ntawv, thiab muab ib tug ruaj khov guarantee rau kev nyab xeeb thiab kev cia siab ntawm aerospace khoom.
Nrog rau kev txhim kho tas mus li ntawm cov kev cai rau kev ntsuas qhov tseeb nyob rau hauv high-end manufacturing kev lag luam, granite bases, nrog rau lawv cov nano-scale damping yam ntxwv thiab kev ua tau zoo ntawm kev ua tau zoo, yog reshaping cov txheej txheem kev ntsuas cov cuab yeej. Kev hloov ntawm cov hlau cam khwb cia rau granite tsis yog tsuas yog hloov kho cov ntaub ntawv; nws kuj yog kev lag luam kiv puag ncig uas propelling precision ntsuas tshuab rau qhov siab tshiab.
Post lub sij hawm: May-13-2025