Mu dziko la metrology yolondola kwambiri, chida choyezera granite si miyala yolemera yokha; ndi muyezo wofunikira womwe miyezo ina yonse imayesedwa. Kulondola komaliza kwa miyeso—komwe kumachitika mu micron ndi sub-micron—kumayamba kale kwambiri njira yomaliza yolumikizirana mosamala. Koma ndi njira ziti zoyambirira zomwe zakhazikitsa njira yolondola kwambiri yotereyi? Imayamba ndi magawo awiri ofunikira, oyambira: kusankha mwamphamvu zinthu zopangira granite ndi njira yodulira yolondola kwambiri yomwe imagwiritsidwa ntchito poipanga.
Luso ndi Sayansi Yosankha Zinthu
Si granite yonse yomwe imapangidwa mofanana, makamaka pamene chinthu chomaliza chiyenera kugwiritsidwa ntchito ngati chida choyezera chokhazikika, chofanana ndi mbale ya pamwamba, tri-square, kapena m'mphepete molunjika. Njira yosankhira ndi yasayansi kwambiri, yoyang'ana kwambiri pa zinthu zakuthupi zomwe zimatsimikizira kukhazikika kwa miyeso kwa zaka zambiri.
Tikufuna makamaka mitundu ya granite yakuda yokhala ndi kuchuluka kwakukulu. Mtunduwu umasonyeza kuchuluka kwa mchere wokhuthala komanso wakuda, monga hornblende, ndi kapangidwe ka tirigu wofewa. Kapangidwe kameneka sikangathe kukambidwanso kuti pakhale ntchito yolondola pazifukwa zingapo zazikulu. Choyamba, Low Porosity ndi High Density ndizofunikira kwambiri: kapangidwe kolimba, kosalala kamachepetsa mipata yamkati ndikuwonjezera kuchulukana, zomwe zikutanthauza mwachindunji mawonekedwe apamwamba a damping yamkati. Mphamvu yayikulu iyi yochepetsera ndi yofunika kwambiri kuti makina azigwira ntchito mwachangu, kuonetsetsa kuti malo oyezera amakhalabe okhazikika. Kachiwiri, zinthuzo ziyenera kuwonetsa Low Coefficient of Thermal Expansion (COE) Yotsika Kwambiri. Katunduyu ndi wofunikira kwambiri, chifukwa amachepetsa kukula kapena kuchepa ndi kusinthasintha kwa kutentha kwanthawi zonse m'malo owongolera khalidwe, ndikutsimikizira kuti chidacho chimasunga umphumphu wake. Pomaliza, granite yosankhidwa iyenera kukhala ndi mphamvu yayikulu yokakamiza komanso Uniform Mineral Distribution. Kufanana kumeneku kumatsimikizira kuti zinthuzo zimayankha modziwikiratu panthawi yodula yotsatira komanso, chofunika kwambiri, gawo lofunika kwambiri la kupalasa pamanja, kutilola kukwaniritsa ndikusunga kulekerera kwathu kofunikira kwa flatness.
Njira Yodulira Molondola Kwambiri
Mukachotsa chipika chabwino kwambiri kuchokera ku miyala, gawo loyamba lopangira mawonekedwe—kudula—ndi njira yaukadaulo yopangidwira kuchepetsa kupsinjika kwa zinthu ndikukhazikitsa maziko omalizira bwino kwambiri. Njira zodulira zamatabwa wamba sizokwanira; granite yolondola imafuna zida zapadera.
Njira yamakono yodulira miyala ikuluikulu ya granite ndi Diamond Wire Saw. Njirayi imalowa m'malo mwa masamba ozungulira achikhalidwe ndi chingwe chachitsulo champhamvu kwambiri chophatikizidwa ndi diamondi zamafakitale. Kugwiritsa ntchito njira iyi kumapereka ubwino wapadera: kumathandizira kuchepetsa kupsinjika ndi kutentha chifukwa waya wa diamondi umagwira ntchito mosalekeza, mozungulira mbali zambiri, zomwe zimagawa mphamvu zodulira mofanana pa zinthuzo. Izi zimachepetsa chiopsezo chobweretsa kupsinjika kotsalira kapena ming'alu yaying'ono mu granite—ngozi yodziwika bwino ndi njira zodulira zodutsa kamodzi, zomwe zimakhudza kwambiri. Chofunika kwambiri, njirayi nthawi zambiri imakhala yonyowa, pogwiritsa ntchito madzi ochulukirapo kuti aziziritse waya ndikuchotsa fumbi la granite, potero kupewa kuwonongeka kwa kutentha komwe kungawononge kukhazikika kwa nthawi yayitali kwa zinthuzo. Njirayi imalolanso Kuchita Bwino ndi Kukula, zomwe zimathandiza kupanga bwino mabuloko akuluakulu—ofunikira pa mbale zazikulu za granite kapena maziko a makina—ndi ulamuliro wosayerekezeka, kupereka mawonekedwe oyambira olondola omwe amachepetsa kwambiri nthawi ndi kutayika kwa zinthu zomwe zimachitika pagawo lotsatira lopera.
Mwa kuyang'ana kwambiri pa kusankha zinthu zabwino kwambiri zokhuthala komanso zokhazikika komanso kugwiritsa ntchito njira zapamwamba zodulira zomwe zimachepetsa kupsinjika, tikutsimikiza kuti chida chilichonse choyezera granite cha ZHHIMG chapangidwa ndi mtundu wofunikira pa miyeso yolondola kwambiri padziko lonse lapansi. Kuzungulira kotsatira kumeneku ndi gawo lomaliza pakupanga kopangidwa mosamala.
Nthawi yotumizira: Okutobala-24-2025