Kev tsis yog thiab cov qauv ntawm cov tshuab granite.

 

Granite tau raug lees paub tias yog cov khoom siv premier rau cov khoom siv tshuab ua vim nws cov khoom siv ntom nti, suav nrog kev nthuav dav siab, thiab kev tawm tsam rau kev nthuav dav. Nkag siab txog cov kev tsis ua haujlwm thiab cov qauv txuam nrog cov khoom siv hluav taws xob granite yog qhov tseem ceeb rau cov engisent thiab cov neeg tsim khoom uas cia siab rau lawv cov ntawv thov.

Ib qho ntawm cov thawj cov ntsiab lus tseem ceeb ntawm cov khoom siv granite yog nws lub zog compressive, uas feem ntau yog li 100 txog 300 MPa. Qhov kev kub siab no compressive lub zog kom ntseeg tau tias granite tuaj yeem tiv taus cov nra hnyav yam tsis muaj deformation, ua rau nws zoo tagnrho rau kev txhawb nqa cov Machinery thiab khoom siv. Tsis tas li ntawd, cov khoom pov thawj granite qis dua cov coeffal muaj kev hloov pauv, feem ntau nyob ib ncig ntawm 5 txog qhov kev hloov pauv tsis zoo, ua kom muaj kev ua tau zoo ib puag ncig.

Cov flatness yog lwm qhov tseem ceeb ntawm cov qauv rau cov khoom siv granite. Lub tiaj tiaj tus kam tau teev nyob rau hauv micrometers, nrog cov ntawv thov siab precision Qeb no ntawm precision yog qhov tseem ceeb rau cov ntawv thov xws li kev sib txuas lus ntsuas (cms) thiab cov kev sib txawv ntawm qhov muag tau ua rau ntsuas qhov tseem ceeb.

Ntxiv mus, qhov ntom ntawm granite feem ntau yog li ntawm 2.75 g / cm³, pab rau nws ruaj ntseg thiab kev siv damping. Cov yam ntxwv no yog qhov tseem ceeb hauv kev txo qhov cuam tshuam ntawm cov kev co sab nraud, yog li txhim kho qhov tseeb ntawm cov khoom siv uas rhiab ntawm granite gases.

Hauv kev xaus, cov kev tsis sib haum xeeb thiab cov qauv ntawm cov khoom lag luam granite ua lub luag haujlwm tseem ceeb hauv lawv cov ntawv thov hla dhau kev lag luam. Los ntawm kev ua raws li cov kev qhia tshwj xeeb no, cov tuam ntxhab tuaj yeem ntseeg tau qhov kev ntseeg tau thiab ua haujlwm ntawm lawv cov khoom siv, ua haujlwm los txhim kho kev ua haujlwm zoo thiab ua kom haum rau kev tsim cov txheej txheem. Raws li thev naus laus zis kev nce qib, qhov kev thov rau cov khoom siv granite zoo dua yuav loj hlob, qhov tseem ceeb ntawm kev nkag siab cov qauv txheej txheem no.