Chekutanga, zvakanakira zvechigadziko chegranite
Kuomarara kwakanyanya uye kushanduka kwekupisa kwakaderera
Kuwanda kwegranite kwakakwira (inenge 2.6-2.8 g/cm³), uye modulus yeYoung inogona kusvika 50-100 GPa, inodarika zvakanyanya zvinhu zvesimbi zvakajairika. Kuoma uku kwakanyanya kunogona kudzivirira kutenderera kwekunze uye kushanduka kwemutoro, uye kuve nechokwadi chekuti gwara remhepo rinoyangarara rakati sandara. Panguva imwe chete, chiyero chekuwedzera chegranite chakaderera zvikuru (inenge 5×10⁻⁶/℃), 1/3 chete yealuminium alloy, hapana kushanduka kwekupisa munzvimbo inochinja-chinja tembiricha, kunyanya yakakodzera marabhoritari ekupisa asingaperi kana nzvimbo dzemaindasitiri dzine musiyano mukuru wekupisa pakati pemasikati neusiku.
Kushanda kwakanaka kwazvo kwekudzikisa damping
Maumbirwo egranite ane polycrystalline anoita kuti ive nehunhu hwechisikigo hwekunyorovesa, uye nguva yekudzikamisa vibration inokurumidza ka3-5 kupfuura yesimbi. Mukushanda kwekugadzira nemazvo, inogona kutora zvinobudirira vibration yepamusoro-soro senge kutanga nekumira kwemota, kucheka maturusi, uye kudzivirira kukanganiswa kwe resonance pakunyatsorongeka kwenzvimbo yepuratifomu inofamba (kukosha kwakajairika kusvika ku±0.1μm).
Kugadzikana kwenguva refu
Mushure memazana emamiriyoni emakore ekugadzira granite, kushushikana kwayo kwemukati kwasunungurwa zvachose, kwete sesimbi nekuda kwekushushikana kwakasara kunokonzerwa nekushanduka kunonoka. Ruzivo rwekuyedza runoratidza kuti shanduko yehukuru hwegranite iri pasi pe1μm/m mukati menguva yemakore gumi, iyo iri nani zvakanyanya pane yesimbi yakakandwa kana simbi yakasungirirwa.
Haipindi ngura uye haina kugadziriswa
Granite kusvika kuasidhi nealkali, mafuta, hunyoro nezvimwe zvinhu zvakatipoteredza zvine kutsungirira kwakasimba, hapana chikonzero chekufukidza layer inodzivirira ngura nguva dzose sesimbi. Mushure mekukuya nekupukuta, kuomarara kwepamusoro kunogona kusvika Ra 0.2μm kana pasi, iyo inogona kushandiswa zvakananga senzvimbo yekutakura yechitima chinoyangarara chemhepo kuderedza zvikanganiso zvekuunganidza.
Chechipiri, miganhu yegranite base
Dambudziko rekugadzirisa uye dambudziko remutengo
Granite ine kuomarara kweMohs kwe6-7, inoda kushandiswa kwezvishandiso zvedhaimani pakukuya nemazvo, kushanda zvakanaka kwekugadzira i1/5 yezvinhu zvesimbi chete. Maumbirwo akaomarara emugero wedovetail, maburi ane shinda nezvimwe zvinhu zvemutengo wekugadzirisa wakakwira, uye nguva yekugadzirisa yakareba (semuenzaniso, kugadziriswa kwepuratifomu ye2m×1m kunotora maawa anopfuura 200), zvichikonzera kuti mutengo wese uve wakakwira ne30%-50% kupfuura puratifomu yealuminium alloy.
Njodzi yekutyoka kweganda
Kunyangwe simba rekudzvanya richigona kusvika 200-300MPa, simba rekudhonza regranite i1/10 chete yaro. Kutyoka kwacho kuri nyore kuitika kana paine mutoro wakakura, uye kukuvara kwacho kwakaoma kugadzirisa. Zvakakosha kudzivirira kushushikana zvakanyanya kuburikidza nekugadzira chivakwa, senge kushandisa denderedzwa remakona, kuwedzera huwandu hwenzvimbo dzekutsigira, nezvimwewo.
Kurema kunounza miganhu yehurongwa
Kuwanda kwegranite kwakapetwa kaviri nehafu pane kwealuminium alloy, zvichikonzera kuwedzera kukuru kwehuremu hwese hwepuratifomu. Izvi zvinoisa kukosha kwakanyanya pakukwanisa kwebearing kwechimiro chekutsigira, uye mashandiro esimba anogona kukanganiswa nematambudziko ekuneta mumamiriro ezvinhu anoda kufamba nekukurumidza (senge lithography wafer table).
Zvinhu zve anisotropy
Kupararira kwezvicherwa zvegranite yechisikigo kwakanangana, uye kuomarara uye kuwedzera kwekupisa kwenzvimbo dzakasiyana zvakasiyana zvishoma (anenge ±5%). Izvi zvinogona kukonzera zvikanganiso zvisingakoshi pamapuratifomu akanyatsojeka (akadai sekuisa nanoscale), ayo anoda kuvandudzwa nekusarudza zvakanyanya zvinhu uye kurapwa kwehomogenization (senge calcination yekupisa kwakanyanya).
Sechinhu chikuru chemidziyo yeindasitiri yakanyatsogadzirwa, puratifomu inoyerera yemhepo inomanikidza isina kusimba inoshandiswa zvakanyanya mukugadzira semiconductor, kugadzirisa optical, kuyerwa kwakarurama nedzimwe nzvimbo. Kusarudzwa kwezvinhu zvepasi kunokanganisa zvakananga kugadzikana, kururama uye hupenyu hwebasa repuratifomu. Granite (granite yechisikigo), ine hunhu hwayo hwakasiyana, yave chinhu chinozivikanwa chepasi pepuratifomu dzakadaro mumakore achangopfuura.
Nguva yekutumira: Kubvumbi-09-2025