Granite tau ntev tau lees paub tias yog cov khoom siv tseem ceeb rau cov khoom siv kho tshuab vim nws cov khoom tshwj xeeb, suav nrog kev ceev ceev, rigidity, thiab tsis kam mus rau thermal expansion. Nkag siab txog cov txheej txheem thiab cov qauv cuam tshuam nrog granite mechanical bases yog ib qho tseem ceeb rau cov engineers thiab manufacturers uas cia siab rau precision thiab durability nyob rau hauv lawv daim ntawv thov.
Ib qho ntawm cov txheej txheem tseem ceeb ntawm granite mechanical bases yog nws lub zog compressive, uas feem ntau yog li ntawm 100 txog 300 MPa. Lub zog compressive siab no ua kom ntseeg tau tias granite tuaj yeem tiv taus qhov hnyav yam tsis muaj deformation, ua rau nws zoo tagnrho rau kev txhawb nqa cov tshuab hnyav thiab khoom siv. Tsis tas li ntawd, granite nthuav tawm cov thermal expansion coefficients qis, feem ntau nyob ib ncig ntawm 5 txog 7 x 10^-6 / ° C, uas txo qis qhov hloov pauv vim qhov kub thiab txias, kom ntseeg tau tias kev ua tau zoo nyob hauv ntau qhov chaw.
Nto flatness yog lwm tus qauv tseem ceeb rau granite mechanical bases. Lub flatness kam rau ua yog feem ntau teev nyob rau hauv micrometers, nrog high-precision daim ntaub ntawv yuav tsum tolerances nruj li 0.005 hli ib 'meter'. Qhov kev txiav txim siab no yog qhov tseem ceeb rau cov ntawv thov xws li kev sib koom ua ke ntsuas tshuab (CMMs) thiab cov khoom siv kho qhov muag, qhov twg txawm tias qhov sib txawv me ntsis tuaj yeem ua rau muaj kev ntsuas tsis raug.
Ntxiv mus, qhov ceev ntawm granite feem ntau yog li ntawm 2.63 mus rau 2.75 g / cm³, ua rau nws ruaj khov thiab kev co-damping zog. Cov yam ntxwv no yog qhov tseem ceeb hauv kev txo qhov cuam tshuam ntawm kev co sab nraud, yog li txhim kho qhov tseeb ntawm cov cuab yeej rhiab mounted ntawm granite hauv paus.
Hauv kev xaus, cov kev tsis sib xws thiab cov qauv ntawm granite mechanical bases ua lub luag haujlwm tseem ceeb hauv lawv daim ntawv thov thoob plaws ntau yam kev lag luam. Los ntawm kev ua raws li cov lus qhia tshwj xeeb no, cov tuam ntxhab tuaj yeem ua kom ntseeg tau thiab ua haujlwm ntawm lawv cov khoom siv, thaum kawg ua rau kev txhim kho kev ua haujlwm zoo thiab kev ua tiav hauv kev tsim khoom. Raws li kev siv thev naus laus zis, qhov kev thov rau cov khoom siv zoo granite yuav loj hlob mus ntxiv, qhia txog qhov tseem ceeb ntawm kev nkag siab txog cov qauv txheej txheem no.
Post lub sij hawm: Dec-06-2024