Kubunjiniyela obunembile kakhulu, ingxenye ye-granite iyisigungu esiphezulu sokubhekisela, enikeza isisekelo sokuqina kwezinsimbi ezisebenza ezikalini ze-micro kanye ne-nanometer. Kodwa-ke, ngisho nezinto ezizinzile kakhulu—i-granite yethu emnyama ye-ZHHIMG® enobukhulu obuphezulu—ingaletha kuphela amandla ayo aphelele uma inqubo yokulinganisa ngokwayo iphathwa ngokuqinile ngokwesayensi.
Onjiniyela kanye nochwepheshe be-metro baqinisekisa kanjani ukuthi imiphumela yokulinganisa inembile ngempela? Ukuthola imiphumela enembile, ephindaphindwayo ngesikhathi sokuhlolwa nokuqinisekiswa kokugcina kwezisekelo zomshini we-granite, ama-air bearings, noma izakhiwo ze-CMM kudinga ukunakwa okuqinile emininingwaneni ngaphambi kokuba ithuluzi lokulinganisa lithinte indawo. Lokhu kulungiselela kuvame ukuba bucayi njengemishini yokulinganisa uqobo, ukuqinisekisa ukuthi imiphumela ibonisa ngempela i-geometry yengxenye, hhayi izinto zemvelo.
1. Indima Ebalulekile Yokulungisa Ukushisa (Isikhathi Sokucwilisa)
I-Granite ine-Coefficient of Thermal Expansion (COE) ephansi kakhulu, ikakhulukazi uma iqhathaniswa nezinsimbi. Noma kunjalo, noma yiziphi izinto, okuhlanganisa ne-granite enobukhulu obuphezulu, kumele ziqiniswe ngokushisa emoyeni ozungezile kanye nethuluzi lokulinganisa ngaphambi kokuba kuqalwe ukuqinisekiswa. Lokhu kwaziwa ngokuthi isikhathi sokucwiliswa.
Ingxenye enkulu yegranite, ikakhulukazi esanda kuthuthwa isuka phansi efektri yayiswa elebhu ye-metrology ezinikele, izothwala ama-gradient okushisa—umehluko ekushiseni phakathi kwengaphakathi layo, ubuso bayo, kanye nesisekelo sayo. Uma ukulinganisa kuqala ngaphambi kwesikhathi, igranite izokhula kancane noma inciphe njengoba ilingana, okuholela ekuzulazuleni okuqhubekayo kokufundwa.
- Umthetho Wesithupha: Izingxenye ezinembile kumele zihlale endaweni yokulinganisa—izindawo zethu zokuhlanza ezilawulwa amazinga okushisa nomswakama—isikhathi eside, ngokuvamile amahora angu-24 kuya kwangu-72, kuye ngobuningi kanye nobukhulu bengxenye. Inhloso ukufeza ukulingana kokushisa, ukuqinisekisa ingxenye ye-granite, idivayisi yokulinganisa (njenge-laser interferometer noma izinga le-elekthronikhi), kanye nomoya konke kusekushiseni okujwayelekile okuqashelwa emhlabeni wonke (ngokuvamile okungu-20℃).
2. Ukukhetha Nokuhlanza Okungaphezulu: Ukususa Isitha Sokunemba
Ukungcola, uthuli, kanye nemfucumfucu kuyizitha ezinkulu kakhulu zokulinganisa okunembile. Ngisho nenhlayiya encane yothuli noma umunwe osele ungadala ukuphakama okumayo okubonisa iphutha lama-micrometer amaningana, okuphazamisa kakhulu ukulinganisa ukuthamba noma ukunemba.
Ngaphambi kokuba kubekwe noma iyiphi i-probe, i-reflector, noma ithuluzi lokulinganisa phezu kobuso:
- Ukuhlanza Okuphelele: Indawo engaphezulu kwengxenye, kungakhathaliseki ukuthi iyindilinga yokubhekisela noma i-pad yokufaka i-linear rail, kumele ihlanzwe ngokucophelela kusetshenziswa i-wipe efanele, engena-lint kanye ne-ejenti yokuhlanza ehlanzekile kakhulu (ngokuvamile utshwala bezimboni noma isihlanzi se-granite esizinikele).
- Sula Amathuluzi: Okubaluleke ngokulinganayo ukuhlanzwa kwamathuluzi okulinganisa ngokwawo. Ama-reflector, izisekelo zamathuluzi, kanye namathiphu okuhlola kumele kube msulwa ukuqinisekisa ukuthintana okuphelele kanye nendlela yangempela yokukhanya.
3. Ukuqonda Ukusekelwa Nokukhululwa Kokucindezeleka
Indlela ingxenye yegranite esekelwa ngayo ngesikhathi sokulinganisa ibalulekile. Izakhiwo ezinkulu zegranite ezisindayo zenzelwe ukugcina i-geometry yazo uma zisekelwa ezindaweni ezithile, ezibalwe ngokwezibalo (ngokuvamile ezisekelwe kumaphuzu e-Airy noma e-Bessel ukuze kube yisicaba esifanele).
- Ukufakwa Okufanele: Ukuqinisekiswa kumele kwenzeke lapho ingxenye yegranite ihlezi ezisekelweni eziqokwe yipulani yobunjiniyela. Amaphuzu okusekela angalungile angabangela ukucindezeleka kwangaphakathi kanye nokuphambuka kwesakhiwo, kugobe ubuso futhi kuveze ukufundwa okungafanele "okungabekezeleli", noma ngabe ingxenye yenziwe kahle.
- Ukuhlukaniswa Kokudlidliza: Indawo yokulinganisa kumele ihlukaniswe. Isisekelo se-ZHHIMG, esinephansi likakhonkolo elilwa nokudlidliza elingamamitha elilodwa kanye nomsele wokuhlukaniswa ongu-2000 mm ojulile, sinciphisa ukuphazamiseka kokuzamazama komhlaba kwangaphandle kanye nokwemishini, okuqinisekisa ukuthi isilinganiso sithathwa emzimbeni ongashintshi ngempela.
4. Ukukhetha: Ukukhetha Ithuluzi Elifanele Lokulinganisa Izibalo
Okokugcina, ithuluzi lokulinganisa elifanele kumele likhethwe ngokusekelwe ebangeni lokunemba elidingekayo kanye ne-geometry yengxenye. Alikho ithuluzi elilodwa elifanele yonke imisebenzi.
- Ukuthamba: Ukuze kube nokuthamba okunembile kakhulu kanye nesimo sejometri, i-Laser Interferometer noma i-Autocollimator enesinqumo esiphezulu (evame ukubhangqwa namaLeveli e-Electronic) inikeza isinqumo esidingekayo kanye nokunemba kwebanga elide.
- Ukunemba Kwendawo: Ukuze kuhlolwe ukuguguleka kwendawo noma ukuphindaphindwa kwayo (Ukunemba Kokufunda Okuphindaphindayo), amazinga e-elekthronikhi anembile kakhulu noma ama-LVDT/Capacitance Probes anezinqumo ezifinyelela ku-0.1 μm abalulekile.
Ngokunamathela ngokucophelela kulezi zinyathelo zokulungiselela—ukuphatha ukuzinza kokushisa, ukugcina ukuhlanzeka, nokuqinisekisa ukwesekwa okufanele kwesakhiwo—ithimba lobunjiniyela le-ZHHIMG liqinisekisa ukuthi izilinganiso zokugcina zezingxenye zethu ezinembile kakhulu ziyisibonakaliso sangempela nesithembekile sokunemba kwesigaba somhlaba okulethwa yizinto zethu kanye nabachwepheshe bethu abangochwepheshe.
Isikhathi sokuthunyelwe: Okthoba-24-2025