Thaum nws los txog rau kev xaiv cov khoom siv hauv paus rau cov khoom siv sib dhos ua kom raug, nws yog ib qho tseem ceeb uas yuav tsum xav txog cov yam xws li kev ruaj khov, kev ruaj khov, thiab kev ywj pheej rau kev hnav thiab rhuav. Txawm hais tias hlau zoo li yog qhov kev xaiv pom tseeb vim nws lub zog thiab kev ruaj khov, granite muaj ntau yam zoo uas ua rau nws yog cov khoom siv hauv paus zoo tshaj plaws rau cov khoom siv sib dhos ua kom raug.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm granite yog nws qhov ruaj khov. Granite yog ib lub pob zeb ntuj uas tau khov kho ntau txhiab xyoo hauv qab lub ntiaj teb. Yog li ntawd, nws ruaj khov heev thiab tuaj yeem tiv taus cov khoom hnyav yam tsis muaj kev sib txhuam, tawg, lossis khoov. Qhov kev ruaj khov no ua rau granite yog cov khoom siv zoo tshaj plaws rau cov khoom siv sib dhos vim nws tso cai rau kev ntsuas kom raug thiab sib xws.
Lwm qhov zoo ntawm granite yog nws lub zog tiv taus kev hnav thiab rhuav. Tsis zoo li hlau, uas tuaj yeem xeb dhau sijhawm, granite tiv taus kev pleev xim, khawb, thiab tawg. Qhov no txhais tau tias nws tuaj yeem ua kom nws du thiab tiaj tus rau lub sijhawm ntev, txawm tias siv ntau zaus. Tsis tas li ntawd, granite tsis yog hlau nplaum, uas tshem tawm qhov kev pheej hmoo ntawm kev cuam tshuam nrog cov kab ke hluav taws xob rhiab heev uas yuav muaj nyob rau hauv cov khoom siv sib dhos meej.
Granite kuj yog ib qho khoom siv xa cov kev co zoo heev. Cov yam ntxwv no muaj txiaj ntsig zoo thaum ua haujlwm nrog cov khoom siv siab, xws li microscopy thiab optics, uas xav tau kev co tsawg kawg nkaus rau kev ntsuas qhov tseeb. Los ntawm kev txo cov kev co, granite tuaj yeem pab ua kom ntseeg tau tias kev ntsuas yog sib xws thiab meej, txawm tias nrog cov khoom siv me me.
Lwm qhov zoo ntawm granite yog nws qhov kev ruaj khov thermal. Granite muaj cov coefficient qis ntawm thermal expansion, uas txhais tau tias nws tuaj yeem tswj nws cov duab thiab qhov loj txawm tias muaj kev hloov pauv kub. Qhov no yog qhov tseem ceeb rau cov khoom siv sib dhos precision uas yuav raug rau ntau yam kub thaum siv. Nrog granite ua lub hauv paus, cov khoom siv tuaj yeem tswj lawv qhov tseeb txawm tias nyob rau hauv ib puag ncig hloov pauv.
Xaus lus, thaum hlau zoo li yog ib qho kev xaiv zoo rau cov khoom siv rau kev sib dhos ua ke, granite muaj cov txiaj ntsig sib txawv uas ua rau nws yog qhov kev xaiv zoo dua. Nws qhov ruaj khov, kev tiv taus kev hnav thiab rhuav, kev sib kis ntawm kev co, thiab kev ruaj khov thermal ua rau nws yog cov khoom siv zoo tshaj plaws rau cov khoom siv siab. Ntxiv mus, granite qhov zoo nkauj ntuj thiab kev nyiam zoo nkauj muab qhov zoo uas tsis tuaj yeem sib piv los ntawm hlau.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-21-2023