Kwinjineli echanekileyo kakhulu, icandelo legranite lelona candelo liphambili lokubhekisa, elinika isiseko sozinzo lwezixhobo ezisebenza kwizikali ze-micro kunye ne-nanometer. Nangona kunjalo, kwanezona zinto zizinzileyo ngokwendalo—igranite yethu emnyama ye-ZHHIMG® enoxinano olukhulu—inokubonelela kuphela ngamandla ayo apheleleyo ukuba inkqubo yokulinganisa ngokwayo ilawulwa ngobuchule besayensi.
Iinjineli kunye neengcali zemetro ziqinisekisa njani ukuba iziphumo zokulinganisa zichanekile ngokwenene? Ukufikelela kwiziphumo ezichanekileyo neziphindaphindwayo ngexesha lokuhlolwa kunye nokuqinisekiswa kokugqibela kweziseko zoomatshini begranite, iibheringi zomoya, okanye izakhiwo zeCMM kufuna ingqalelo engqongqo kwiinkcukacha ngaphambi kokuba isixhobo sokulinganisa sichukumise umphezulu. Olu lungiselelo ludla ngokuba lubaluleke kakhulu njengesixhobo sokulinganisa ngokwaso, ukuqinisekisa ukuba iziphumo zibonisa ngokwenene ijiyometri yecandelo, kungekhona izinto ezisetyenziswa kwindawo engqongileyo.
1. Indima Ebalulekileyo Yokulungisa Ubushushu (Ixesha Lokuntywiliselwa Emoyeni)
I-Granite ine-Coefficient of Thermal Expansion (COE) ephantsi kakhulu, ngakumbi xa ithelekiswa neentsimbi. Sekunjalo, nayiphi na into, kuquka i-granite enoxinano oluphezulu, kufuneka iqiniswe ngobushushu emoyeni ongqongileyo nakwisixhobo sokulinganisa ngaphambi kokuba kuqalwe ukuqinisekiswa. Oku kwaziwa njengexesha lokuntywila.
Inxalenye enkulu yegranite, ingakumbi leyo isandula ukufuduselwa kumgangatho womzi-mveliso ukuya kwilebhu yemetrology ezinikeleyo, iya kuba nee-thermal gradients—umahluko kubushushu phakathi kombindi wayo, umphezulu, kunye nesiseko. Ukuba ukulinganiswa kuqala ngaphambi kwexesha, igranite iya kwanda okanye inciphe kancinci njengoko ilingana, nto leyo ekhokelela ekuqhubekeni kokufundwa.
- Umthetho weThumb: Izinto ezichanekileyo kufuneka zihlale kwindawo yokulinganisa—amagumbi ethu okucoca alawulwa bubushushu kunye nokufuma—kangangexesha elide, ngokufuthi iiyure ezingama-24 ukuya kuma-72, kuxhomekeke kubunzima kunye nobukhulu bento. Injongo kukufezekisa ukulingana kobushushu, ukuqinisekisa ukuba into yegranite, isixhobo sokulinganisa (njenge-laser interferometer okanye inqanaba le-elektroniki), kwaye umoya wonke ukwiqondo lobushushu elivunyiweyo kwihlabathi liphela (ngesiqhelo yi-20℃).
2. Ukukhetha kunye nokuCoca umphezulu: Ukususa utshaba lokuchaneka
Ukungcola, uthuli, kunye nenkunkuma zezona zitshaba zinkulu zokulinganisa ngokuchanekileyo. Kwanesuntswana elincinci lothuli okanye iminwe eseleyo inokwenza ukuphakama okumileyo okubonisa ngokungeyonyani impazamo yee-micrometer ezininzi, okuphazamisa kakhulu ukulinganiswa kokuthe tye okanye ukuthamba.
Ngaphambi kokuba kubekwe nasiphi na isixhobo sokulinganisa, isixhobo sokubonisa, okanye isixhobo sokulinganisa phezu komphezulu:
- Ukucoca Ngokucokisekileyo: Umphezulu wento, nokuba yi-reference plane okanye i-mounting pad ye-linear rail, kufuneka icocwe ngononophelo kusetyenziswa i-wipe efanelekileyo, engena-lint kunye ne-agent yokucoca ecocekileyo kakhulu (edla ngokuba yi-alcohol yemizi-mveliso okanye i-granite cleaner).
- Sula Izixhobo: Okubaluleke ngokufanayo kukucocwa kwezixhobo zokulinganisa ngokwazo. IiReflectors, iziseko zezixhobo, kunye neengcebiso zeprobe kufuneka zicoceke ukuqinisekisa ukudibana okugqibeleleyo kunye nendlela yokwenyani yokukhanya.
3. Ukuqonda Inkxaso kunye nokukhululwa koxinzelelo
Indlela exhaswa ngayo icandelo legranite ngexesha lokulinganisa ibalulekile. Izakhiwo ezinkulu, ezinzima zegranite zenzelwe ukugcina ijiyometri yazo xa zixhaswa kwiindawo ezithile, ezibalwe ngokwezibalo (ezidla ngokusekwe kwiindawo zeAiry okanye zeBessel ukuze zibe tyaba kakhulu).
- Ukufakelwa ngokuchanekileyo: Kufuneka kuqinisekiswe ukuba icandelo legranite lixhomekeke kwizixhaso ezichazwe yiplani yobunjineli. Iindawo zokuxhasa ezingachanekanga zinokubangela uxinzelelo lwangaphakathi kunye nokuphambuka kwesakhiwo, zijije umphezulu kwaye zivelise ukufundwa okungachanekanga "kokunganyamezelani", nokuba icandelo lenziwe ngokugqibeleleyo.
- Ukuzihlukanisa nokungcangcazela: Indawo yokulinganisa kufuneka yahlulwe. Isiseko se-ZHHIMG, esinomgangatho wekhonkrithi ochasene nokungcangcazela ongama-1.55 mm ubukhulu kunye nomsele wokuzihlukanisa ongama-2000 mm ubunzulu, sinciphisa ukuphazamiseka kwangaphandle kwenyikima kunye noomatshini, siqinisekisa ukuba umlinganiselo uthathwa kumzimba ongashukumiyo ngokwenene.
4. Ukukhetha: Ukukhetha isixhobo seMetrology esifanelekileyo
Okokugqibela, isixhobo sokulinganisa esifanelekileyo kufuneka sikhethwe ngokusekelwe kwinqanaba elichanekileyo elifunekayo kunye nejometri yecandelo. Akukho sixhobo sithile sifanelekileyo kuyo yonke imisebenzi.
- Ukuthamba: Ukuze kube nokuthamba okuchanekileyo kunye nemo yejometri iyonke, i-Laser Interferometer okanye i-Autocollimator enesisombululo esiphezulu (edla ngokudityaniswa namanqanaba e-elektroniki) inika isisombululo esifunekayo kunye nokuchaneka komgama omde.
- Ukuchaneka Kwendawo: Ukuze kujongwe ukuguguleka kwendawo okanye ukuphindaphindwa kwayo (Ukuchaneka Kokufunda Okuphindayo), iiLevels ze-Electronic ezichanekileyo kakhulu okanye ii-LVDT/Capacitance Probes ezine-resolutions esezantsi ukuya kwi-0.1 μm zibalulekile.
Ngokulandela ngononophelo la manyathelo okulungiselela—ukulawula uzinzo lobushushu, ukugcina ucoceko, kunye nokuqinisekisa inkxaso echanekileyo yesakhiwo—iqela lobunjineli le-ZHHIMG liqinisekisa ukuba imilinganiselo yokugqibela yezinto zethu ezichanekileyo kakhulu ibonisa ngokuchanekileyo nangokuthembekileyo ukuchaneka kwehlabathi okunikezelwa zizixhobo zethu kunye neengcali zethu zobugcisa.
Ixesha leposi: Oktobha-24-2025