Granite yog ib lub ntsej muag zoo nkauj uas paub txog nws lub siab nyiam thiab ruaj khov, ua rau nws cov khoom zoo tshaj plaws rau ntau cov ntawv siv, suav nrog kev tsim cov twj paj nruag. Lub sijhawm ntev ntawm cov twj paj nruag no tseem ceeb rau cov kws tshawb nrhiav, cov astronomers, thiab cov kws tshaj lij uas cia siab rau precision thiab raug. Nkag siab tias cov khoom siv granite ntawm lub neej kho twj ywm tuaj yeem tsim lub teeb pom kev xaiv ntawm cov khoom siv tsim qauv thiab kev tsim khoom.
Ib qho ntawm Granite cov ntsiab lus tseem ceeb yog nws qhov kev nyuaj siab. Cov cuab yeej no kom ntseeg tau tias Cheebtsam optical, xws li nce thiab cov hauv paus, nyob ruaj khov thiab ruaj khov. Tsis zoo li cov khoom siv softer, granite tsis yooj yim khawb lossis deform, uas yog qhov tseem ceeb rau kev tswj cov kev sib cav sib ceg thiab kev ncaj ncees ntawm cov tshuab kho qhov muag. Qhov kev ruaj ntseg ruaj khov yog ib qho tseem ceeb tshaj plaws hauv cov ntawv thov siab, qhov chaw uas yuam kev me me tuaj yeem ua rau kev ntsuas lossis kev soj ntsuam.
Tsis tas li ntawd, Granite muaj cov coefficient ntawm thermal expansion. Qhov no txhais tau tias nws tsis nthuav lossis cog lus nrog qhov ntsuas kub, uas yog qhov tseem ceeb rau cov twj kho muag khoom uas yuav siv tau rau hauv cov xwm txheej ib puag ncig. Los ntawm kev txo cov kev cuam tshuam ntawm thermal hloov, pob zeb granite pab tswj kev ntsuas hluav taws xob thiab kev ua haujlwm ntawm cov cuab yeej siv kho qhov muag, ua kom muaj kev txhim khu ntawm lub sijhawm ntev dua.
Tsis tas li ntawd, Granite lub ntuj tiv taus noo noo thiab tshuaj lom neeg ntxiv ncua lub neej ntawm koj cov twj kho qhov muag. Tsis zoo li cov hlau, uas tuaj yeem corrode lossis degrade nyob rau hauv cov kev mob hnyav, granite yog tsis muaj kev cuam tshuam, muab ib lub platform ruaj khov rau kev siv kho qhov muag.
Txhua yam nyob rau hauv tag nrho cov, sib koom ua ke granite rau hauv cov cuab yeej kho qhov muag tuaj yeem txuas ntxiv lawv lifespan. Cov khoom siv tawv tawv, thiab kev tawm tsam tsawg, thiab kev xaiv kom muaj qhov ua kom muaj qhov ua tau zoo thiab kev ntseeg tau hauv kev tshawb nrhiav cov kev tshawb fawb thiab nrhiav pom.
Lub Sijhawm Post: Jan-09-2025