Hauv kev ua cov khoom siv precision, qhov ruaj khov thiab qhov tseeb ntawm cov khoom siv yog cov ntsiab lus tseem ceeb uas txiav txim siab qhov zoo ntawm cov khoom. Txij li kev tsim cov khoom ntawm qib micrometer mus rau qhov ua tiav ntawm qib nanometer, txhua qhov yuam kev me me yuav ua rau kev ua haujlwm ntawm cov khoom poob qis lossis txawm tias scrapping. Cov khoom granite, nrog lawv cov khoom zoo tshaj plaws thiab cov txiaj ntsig kev siv tshuab, tau dhau los ua qhov tseem ceeb rau kev txhim kho qhov ruaj khov thiab qhov tseeb ntawm cov khoom siv thiab tau dhau los ua qhov tseem ceeb thiab tseem ceeb hauv kev lag luam precision mechanical processing.
Cov txiaj ntsig zoo ntawm cov khoom granite
Granite yog ib lub pob zeb ntuj tsim los ntawm cov txheej txheem geological ntev. Nws cov pob zeb hauv av sab hauv yog compact thiab nws cov qauv yog ntom thiab sib xws, muab nws nrog ntau yam ntxwv tsim nyog rau kev ua tiav. Ua ntej, granite muaj cov coefficient qis heev ntawm thermal expansion, feem ntau yog li ntawm 5 txog 7 × 10⁻⁶ / ℃. Hauv cov txheej txheem ntawm kev ua tiav cov khoom siv, cov cua sov tsim los ntawm kev ua haujlwm ntawm cov khoom siv thiab kev hloov pauv ntawm qhov kub thiab txias ib puag ncig yog qhov tsis zam. Cov khoom siv ua los ntawm cov khoom siv ib txwm muaj yuav raug hloov pauv qhov ntev vim yog thermal nthuav dav thiab kev cog lus, yog li cuam tshuam rau qhov tseeb ntawm kev ua tiav. Granite, ntawm qhov tod tes, yuav luag tsis cuam tshuam los ntawm kev hloov pauv kub thiab tuaj yeem tswj tau qhov loj me thiab cov duab ruaj khov, muab lub hauv paus ruaj khov rau cov khoom siv ua tiav.
Qhov thib ob, qhov nyuaj siab thiab kev hnav tsis kam ntawm granite ua rau nws ua tau zoo hauv kev siv mus sij hawm ntev. Nws qhov Mohs hardness tuaj yeem ncav cuag 6 txog 7 qib. Thaum raug ntau yam zog thaum lub sijhawm ua haujlwm, nws tsis yooj yim hnav thiab deformation. Qhov no txhais tau tias cov khoom siv ua haujlwm precision siv cov khoom granite tuaj yeem tswj hwm kev ua haujlwm siab-precision txuas ntxiv mus rau hauv lub sijhawm ntev thiab kev ua haujlwm siab, txo qhov poob qis ntawm cov khoom siv raug thiab qhov zaus ntawm kev ua tsis tiav los ntawm kev hnav khoom.
Tsis tas li ntawd xwb, granite kuj muaj kev ua haujlwm zoo heev rau kev co. Hauv lub chaw ua haujlwm ua khoom siv precision, kev ua haujlwm ntawm ntau yam khoom siv ua haujlwm yuav tsim kev co ntawm ntau qib. Cov kev co no yuav cuam tshuam rau cov txheej txheem ua haujlwm thiab cuam tshuam rau qhov tseeb ntawm kev ua haujlwm. Granite tuaj yeem nqus tau thiab txo cov kev co sab nraud, txo qhov cuam tshuam ntawm kev co rau cov khoom siv, muab ib puag ncig ruaj khov rau kev ua haujlwm raug, thiab xyuas kom meej tias cov khoom ua tiav muaj qhov loj me thiab qhov zoo ntawm qhov chaw.
Daim ntawv thov dav dav ntawm cov khoom granite hauv kev ua tiav cov khoom siv kho tshuab
Hauv cov khoom siv ua khoom siv precision, cov khoom granite siv dav hauv ntau qhov tseem ceeb. Piv txwv li, lub hauv paus cuab yeej tshuab granite, ua lub hauv paus txhawb nqa ntawm cov khoom siv, muab lub platform ua haujlwm ruaj khov rau tag nrho cov cuab yeej tshuab. Nws qhov kev ua tau zoo ruaj khov tuaj yeem ua kom ntseeg tau tias cov cuab yeej tshuab tswj tau qhov tseeb ntawm txhua qhov txav mus los thaum lub sijhawm txiav ceev ceev, kev sib tsoo precision thiab lwm yam txheej txheem ua tiav, yog li ua tiav cov txheej txheem ua tiav siab.
Cov hlau qhia kev ntawm granite kuj yog ib qho tseem ceeb hauv kev ua cov khoom siv precision. Piv nrog cov hlau qhia kev ib txwm muaj, cov hlau qhia kev ntawm granite muaj cov yam ntxwv ntawm kev sib txhuam qis thiab kev txav mus los du. Nws tuaj yeem ua rau cov khoom txav mus los ntawm lub cuab yeej tshuab txav mus los du dua thaum lub sijhawm txav mus los, txo qhov yuam kev txav mus los thiab txhim kho qhov tseeb ntawm kev ua haujlwm. Lub caij no, cov hlau qhia kev ntawm granite muaj kev tiv thaiv kev hnav zoo thiab lub neej ua haujlwm ntev, uas txo cov nqi txij nkawm thiab lub sijhawm tsis ua haujlwm ntawm cov khoom siv.
Hauv kev ntsuas cov cuab yeej, cov khoom xws li granite plates thiab gauge blocks kuj ua lub luag haujlwm tseem ceeb. Granite ntsuas platforms, nrog lawv qhov siab thiab ruaj khov, muab cov ntaub ntawv txhim khu kev qha rau kev ntsuas qhov tseeb. Thaum ua qhov ntsuas qhov ntev thiab cov duab thiab qhov chaw kam rau siab ntawm cov khoom siv kho tshuab precision, granite ntsuas platforms tuaj yeem ua kom muaj qhov tseeb thiab kev ntseeg siab ntawm cov txiaj ntsig ntsuas, pab cov neeg ua haujlwm ua tiav txheeb xyuas thiab kho cov yuam kev ua tiav thiab lav qhov zoo ntawm cov khoom.
Txhawb kev txhim kho ntawm kev lag luam ua khoom siv precision
Nrog rau kev txhim kho tas mus li ntawm qhov tseeb thiab qhov zoo uas xav tau rau cov khoom hauv kev lag luam ua khoom siv precision, qhov tseem ceeb ntawm cov khoom granite tau dhau los ua qhov tseem ceeb. Nws tsis tsuas yog txhim kho qhov ruaj khov thiab qhov tseeb ntawm cov khoom siv, tab sis kuj muab kev txhawb nqa zoo rau kev tsim kho tshiab thiab kev txhim kho ntawm cov thev naus laus zis ua khoom siv precision. Los ntawm kev siv cov khoom granite, cov tuam txhab ua khoom siv precision tuaj yeem tsim cov khoom zoo dua los ua kom tau raws li qhov xav tau ntawm cov lag luam tsim khoom siab xws li aerospace, cov ntaub ntawv hluav taws xob, thiab cov khoom siv kho mob, thiab txhim kho lawv txoj kev sib tw ua lag luam.
Yav tom ntej, nrog rau kev nce qib ntawm kev siv tshuab ua tiav thiab kev thov kom muaj kev ua tiav ntau ntxiv, cov khoom granite yuav ua lub luag haujlwm tseem ceeb hauv kev ua cov khoom siv precision. Nws txoj kev koom ua ke nrog cov thev naus laus zis tsim khoom siab heev yuav txhawb nqa kev txhim kho ntawm kev lag luam ua cov khoom siv precision mus rau qhov tseeb dua thiab ua haujlwm tau zoo dua, thiab pab kev lag luam tsim khoom pib txoj kev taug kev tshiab mus rau kev txhim kho siab thiab ntse.
Lub sijhawm tshaj tawm: Tsib Hlis-07-2025