Granite yog lub pob zeb uas tsis muaj zog uas paub txog nws txoj kev ruaj khov thiab ruaj khov, ua rau nws yog ib qho khoom siv zoo tagnrho rau ntau yam kev siv, nrog rau kev tsim cov cuab yeej kho qhov muag. Lub neej ntev ntawm cov cuab yeej no yog qhov tseem ceeb rau cov kws tshawb fawb, astronomers, thiab cov kws tshaj lij uas tso siab rau qhov tseeb thiab qhov tseeb. Kev nkag siab txog yuav ua li cas granite ntu txuas ntxiv lub neej ntawm cov cuab yeej kho qhov muag tuaj yeem pom qhov tseem ceeb ntawm cov khoom siv hauv kev tsim thiab tsim cov txheej txheem.
Ib qho ntawm granite lub ntsiab zoo yog nws qhov tshwj xeeb hardness. Cov cuab yeej no ua kom cov khoom siv kho qhov muag, xws li mounts thiab hauv paus, nyob ruaj khov thiab ruaj khov. Tsis zoo li cov ntaub ntawv softer, granite tsis yooj yim khawb los yog deform, uas yog ib qho tseem ceeb rau kev tswj cov kev sib raug zoo thiab kev ncaj ncees ntawm optical systems. Qhov kev ruaj ntseg no yog qhov tseem ceeb tshwj xeeb hauv cov ntawv thov kev ua haujlwm siab, qhov twg txawm tias qhov tsis zoo me ntsis tuaj yeem ua rau muaj qhov yuam kev loj hauv kev ntsuas lossis kev soj ntsuam.
Tsis tas li ntawd, granite muaj tsawg coefficient ntawm thermal expansion. Qhov no txhais tau hais tias nws tsis nthuav lossis cog lus loj heev nrog kev hloov pauv ntawm qhov kub thiab txias, uas yog qhov tseem ceeb rau cov cuab yeej kho qhov muag uas yuav siv tau rau ntau qhov chaw ib puag ncig. Los ntawm kev txo qhov cuam tshuam ntawm thermal fluctuations, granite qhov chaw pab tswj cov calibration thiab kev ua tau zoo ntawm cov khoom siv kho qhov muag, ua kom lawv nyob ruaj khov nyob rau lub sijhawm ntev.
Tsis tas li ntawd, granite lub ntuj tsis kam mus rau ya raws thiab tshuaj ntxiv txuas ntxiv lub neej ntawm koj cov cuab yeej kho qhov muag. Tsis zoo li cov hlau, uas tuaj yeem corrode lossis degrade nyob rau hauv cov xwm txheej hnyav, granite tsis cuam tshuam, muab lub platform ruaj khov rau cov khoom siv kho qhov muag.
Tag nrho cov nyob rau hauv tag nrho cov, incorporating granite Cheebtsam nyob rau hauv kho qhov muag twj tso kua mis muaj peev xwm ho ncua lawv lifespan. Cov khoom siv hardness, tsis tshua muaj thermal expansion, thiab tsis kam mus rau ib puag ncig yam ua rau nws yog ib qho kev xaiv zoo heev los xyuas kom meej lub durability thiab kev ntseeg siab ntawm cov cuab yeej no uas yog ib qho tseem ceeb hauv kev tshawb fawb thiab kev tshawb nrhiav.
Post lub sij hawm: Jan-09-2025