Ubwa mbere, ibyiza bya granite shingiro
Gukomera cyane hamwe no guhindura ubushyuhe buke
Ubucucike bwa granite buri hejuru (hafi 2,6-2.8 g / cm³), kandi Modulus ya Young irashobora kugera kuri GPa 50-100, irenze kure iy'ibikoresho bisanzwe. Uku gukomera gukomeye kurashobora guhagarika neza kunyeganyega hanze no guhindura imitwaro, kandi bikanemeza neza ko ikirere kireremba. Muri icyo gihe, coefficente yo kwagura umurongo wa granite iri hasi cyane (hafi 5 × 10⁻⁶ / ℃), 1/3 gusa cya aluminiyumu, hafi ya yose nta ihindagurika ryumuriro mubihe bihindagurika ryubushyuhe, cyane cyane bikwiranye na laboratoire zihoraho zubushyuhe cyangwa amashusho yinganda zifite itandukaniro rinini hagati yumunsi nijoro.
Igikorwa cyiza cyo gusiba
Imiterere ya polycrystalline ya granite ituma igira ibintu bisanzwe byo kugabanuka, kandi igihe cyo kunyeganyega cyihuta inshuro 3-5 kurenza icyuma. Muburyo bwo gutunganya neza, irashobora gukuramo neza umuvuduko mwinshi nko gutangira moteri no guhagarara, gukata ibikoresho, no kwirinda ingaruka za resonance kumwanya uhagaze neza kuri platifomu igenda (agaciro gasanzwe kangana na ± 0.1μm).
Iterambere rirambye
Nyuma yimyaka miriyoni amagana yimikorere ya geologiya ikora granite, imihangayiko yimbere yararekuwe burundu, ntabwo nkibikoresho byibyuma kubera guhangayika gusigara biterwa no guhindura buhoro. Ubushakashatsi bwakozwe bwerekana ko ingano ihinduka rya base ya granite iri munsi ya 1μm / m mugihe cyimyaka 10, ikaba nziza cyane kuruta iy'ibyuma cyangwa ibyuma bisudira.
Kurwanya ruswa no kubungabunga ibidukikije
Granite kuri acide na alkali, amavuta, ubushuhe nibindi bintu bidukikije bifite kwihanganira bikomeye, nta mpamvu yo gutwikira urwego rurwanya ingese nkuko bisanzwe nkicyuma. Nyuma yo gusya no gusya, ububobere bwo hejuru bushobora kugera kuri Ra 0.2 mm cyangwa munsi yayo, bushobora gukoreshwa muburyo butaziguye hejuru ya gari ya moshi iyobora ikirere kugirango igabanye amakosa yo guterana.
Icya kabiri, imipaka ya granite ishingiro
Gutunganya ingorane nibibazo byigiciro
Granite ifite ubukana bwa Mohs bwa 6-7, bisaba gukoresha ibikoresho bya diyama mugusya neza, gutunganya neza ni 1/5 cyibikoresho byicyuma. Imiterere igoye ya dovetail groove, umwobo wubudodo nibindi biranga ikiguzi cyo gutunganya ni ndende, kandi uburyo bwo gutunganya ni burebure (urugero, gutunganya ikibanza cya 2m × 1m bifata amasaha arenga 200), bivamo igiciro rusange kiri hejuru ya 30% -50% kurenza platine ya aluminium.
Gucika intege
Nubwo imbaraga zo guhonyora zishobora kugera kuri 200-300MPa, imbaraga zingana za granite ni 1/10 cyayo. Kuvunika kuvunika biroroshye kugaragara munsi yumutwaro ukabije, kandi ibyangiritse biragoye kubisana. Birakenewe kwirinda guhangayikishwa cyane binyuze mubishushanyo mbonera, nko gukoresha impande zose, kongera umubare winkunga, nibindi.
Ibiro bizana imipaka
Ubucucike bwa granite bwikubye inshuro 2,5 ubwinshi bwa aluminiyumu, bigatuma habaho kwiyongera cyane muburemere rusange bwurubuga. Ibi birashyira hejuru cyane kubushobozi bwo kwishyiriraho imiterere yinkunga, kandi imikorere yingirakamaro irashobora guterwa nibibazo bya inertia mubihe bisaba kugenda byihuse (nkameza ya lithographie wafer).
Anisotropy
Gukwirakwiza imyunyu ngugu ya granite karemano ni icyerekezo, kandi ubukana hamwe na coefficente yo kwagura ubushyuhe bwimyanya itandukanye iratandukanye gato (hafi ± 5%). Ibi birashobora kumenyekanisha amakosa adasuzuguritse kuri ultra-precision platform (nka nanoscale ihagaze), bigomba kunozwa muguhitamo ibintu bikomeye no kuvura homogenisation (nko kubara ubushyuhe bwo hejuru).
Nkibice byingenzi byibikoresho byinganda bihanitse, urwego rwumuvuduko uhagaze neza ikirere kireremba cyane gikoreshwa cyane mugukora igice cya kabiri, gutunganya optique, gupima neza nibindi bice. Guhitamo ibikoresho fatizo bigira ingaruka ku buryo butaziguye, ubunyangamugayo nubuzima bwa serivise. Granite (granite naturel), hamwe nimiterere yihariye yumubiri, yahindutse ibikoresho bizwi nkibi bikoresho bya platform mumyaka yashize.
Igihe cyo kohereza: Apr-09-2025