Kubunjiniyela bokunemba kakhulu, ingxenye yegranite iwumzimba omkhulu oyisithenjwa, ohlinzeka ngesisekelo sokuzinza kwamathuluzi asebenza esikalini esincane nese-nanometer. Kodwa-ke, ngisho nezinto ezizinze ngokwemvelo—igwadle lethu elimnyama le-ZHHIMG® elinobukhulu obuphezulu—ingaletha amandla ayo aphelele kuphela uma inqubo yokulinganisa ilawulwa ngokuqinile ngokwesayensi.
Onjiniyela nama-metrologists baqinisekisa kanjani ukuthi imiphumela yokulinganisa inembile ngempela? Ukuthola imiphumela enembile, ephindaphindwayo ngesikhathi sokuhlolwa nokuqinisekiswa kokugcina kwezisekelo zomshini wegwadle, amabheringi omoya, noma izakhiwo ze-CMM kudinga ukunakwa okuqinile kwemininingwane ngaphambi kokuba ithuluzi lokulinganisa lithinte phezulu. Lokhu kulungiselelwa kuvame ukuba bucayi njengemishini yokulinganisa ngokwayo, iqinisekisa ukuthi imiphumela ibonisa ngokweqiniso ijometri yengxenye, hhayi izinto zobuciko zemvelo.
1. Iqhaza Elibalulekile Le-Thermal Conditioning (Isikhathi Sokuphuma)
I-Granite ine-Coefficient ephansi kakhulu ye-Thermal Expansion (COE), ikakhulukazi uma iqhathaniswa nezinsimbi. Kodwa, noma iyiphi into, ehlanganisa igwadule eliminyaniswe kakhulu, kufanele lizinziswe ngokushisa komoya kumoya ozungezile kanye nethuluzi lokulinganisa ngaphambi kokuthi kuqale ukuqinisekiswa. Lokhu kwaziwa njengenkathi yokuphuma emanzini.
Ingxenye enkulu yegwadle, ikakhulukazi leyo esanda kususwa kusukela esitezi sefekthri iye kulebhu ye-metrology ezinikele, izothwala ama-gradient ashisayo—umehluko wamazinga okushisa phakathi komnyombo wayo, indawo engaphezulu, kanye nesisekelo. Uma ukulinganisa kuqala ngaphambi kwesikhathi, i-granite izokhula kancane kancane noma ifinyeze njengoba ilingana, okuholela ekuqhumeni okuqhubekayo ekufundeni.
- Umthetho Wesithupha: Izingxenye ezinembayo kufanele zihlale endaweni yokulinganisa—izinga lokushisa lethu namagumbi okuhlanza alawulwa umswakama—isikhathi eside, ngokuvamile amahora angu-24 kuya kwangu-72, kuye ngobunzima bengxenye nokujiya. Inhloso ukuzuza ukulingana okushisayo, ukuqinisekisa ingxenye yegwadle, isisetshenziswa sokulinganisa (njenge-laser interferometer noma ileveli ye-elekthronikhi), kanye nomoya konke kukuzinga lokushisa elijwayelekile elamukelwa umhlaba wonke (ngokuvamile elingu-20℃).
2. Ukukhethwa Nokuhlanza Indawo: Ukuqeda Isitha Sokunemba
Ukungcola, uthuli, nemfucumfucu izitha ezinkulu zokulinganisa okunembile. Ngisho nezinhlayiya ezincane zothuli noma izigxivizo zeminwe ezisele zingakha ukuphakama okumile okubonisa amaphutha ama-micrometer ambalwa, okufaka engozini kakhulu ukukalwa kokucaba noma ukuqondile.
Ngaphambi kokuthi noma iyiphi i-probe, isibonisi, noma ithuluzi lokulinganisa libekwe phezulu:
- Ukuhlanza Okuphelele: Indawo engaphezulu, kungakhathaliseki ukuthi iyindiza eyinkomba noma i-pad yokukhweza kajantshi oqondile, kufanele ihlanzwe ngokucophelela kusetshenziswa into efanele, i-lint-free kanye ne-ejenti yokuhlanza okuhlanzekile (ngokuvamile utshwala basezimbonini noma isicoci se-granite esizinikele).
- Sula Phansi Amathuluzi: Okubaluleke ngokufanayo ukuhlanzwa kwamathuluzi okulinganisa ngokwawo. Ama-reflector, izisekelo zamathuluzi, namathiphu okuhlola kufanele kungabi nasici ukuze kuqinisekiswe ukuthintana okuphelele kanye nendlela yangempela yokubona.
3. Ukuqonda Ukusekela kanye Nokukhishwa Kwengcindezi
Indlela ingxenye yegwadle esekelwa ngayo phakathi nokulinganisa ibalulekile. Izakhiwo ezinkulu, ezisindayo zegwadle ziklanyelwe ukugcina ijometri yazo lapho zisekelwa ezindaweni ezithile, ezibalwe ngokwezibalo (ngokuvamile zisekelwe kumaphoyinti e-Airy noma e-Bessel ukuze uthole ukucaba okuphelele).
- Ukukhweza Okulungile: Ukuqinisekisa kufanele kwenzeke ngengxenye yegranite esekelwe kuzisekelo ezikhethwe ipulani yobunjiniyela. Amaphuzu okusekela angalungile angabangela ukucindezeleka kwangaphakathi kanye nokuchezuka kwesakhiwo, asonte indawo futhi anikeze ukufundwa okungalungile "okungabekezeleli", ngisho noma ingxenye yenziwe ngokuphelele.
- Ukudlidliza Kodwa: Indawo yokulinganisa kufanele yona ngokwayo ibe yodwa. Isisekelo se-ZHHIMG, esinesitezi esiwugqinsi esiyimitha elilodwa esiwugqinsi sokudlidliza kanye nomsele wokuhlukanisa umuntu ojule ongu-2000 mm, sinciphisa ukuphazamiseka kokuzamazama komhlaba kwangaphandle kanye nokuphazanyiswa komshini, iqinisekisa ukuthi ukukala kuthathwa emzimbeni omile ngempela.
4. Ukukhetha: Ukukhetha Ithuluzi Le-Metrology Elilungile
Okokugcina, ithuluzi lokulinganisa elifanele kufanele likhethwe ngokusekelwe ebangeni lokunemba elidingekayo kanye nejometri yengxenye. Alikho ithuluzi elilodwa eliphelele kuwo wonke umsebenzi.
- I-Flatness: Ukuze uthole ukunemba okuphezulu okuphelele kanye nefomu lejometri, i-Laser Interferometer noma i-Autocollimator enesinqumo esiphezulu (evame ukuhambisana nama-Electronic Levels) inikeza ukulungiswa okudingekayo kanye nokunemba kwebanga elide.
- Ukunemba Kwendawo: Ukuhlola ukugqokwa kwendawo noma ukuphindaphinda (Ukunemba Kokufunda Okuphindayo), Amazinga Kagesi anemba okuphezulu noma ama-LVDT/Capacitance Probes anezinqumo ezifika ku-0.1 μm zibalulekile.
Ngokunamathela ngokucophelela kulezi zinyathelo zokulungiselela—ukulawula ukuzinza kokushisa, ukugcina ukuhlanzeka, nokuqinisekisa ukwesekwa okulungile kwesakhiwo—ithimba lonjiniyela le-ZHHIMG liqinisekisa ukuthi izilinganiso zokugcina zezingxenye zethu ezinembe kakhulu ziwukubonakaliswa kweqiniso nokuthembekile kokunemba kwezinga lomhlaba okulethwa izinto zethu kanye nezingcweti zethu zezandla.
Isikhathi sokuthumela: Oct-24-2025