Emkhakheni wokulinganisa ngokunemba, i-granite straightedge, njengethuluzi eliyinhloko lokuqinisekisa ukunemba kwemishini nokulinganisa, ibanga layo le-flatness lithinta ngokuqondile ukuthembeka kwemiphumela yokulinganisa. Isitifiketi Sesikhungo Sikazwelonke Samazinga Nobuchwepheshe (i-NIST) sase-United States siyindinganiso egunyaziwe eyaziwa emhlabeni wonke yemishini yokulinganisa enembayo ephezulu, futhi ukucaba kweleveli ye-AA kungelinye lamabanga anezidingo zokunemba okuphezulu kakhulu. Njengomkhiqizo ohamba phambili embonini, i-ZHHIMG, ngobuchwepheshe bayo obuthuthukisiwe nobungcweti obuqinile, isiza abasebenzisi ukuthi bafinyelele isitifiketi se-NIST kanye nemigomo yezinga le-AA ye-flatness ye-granite straighteers. Okulandelayo kuzokunikeza ukuhlaziya okuningiliziwe kwamaphoyinti abalulekile wokulinganisa kanye nezindlela zokuqalisa.
1. Qonda isitifiketi se-NIST nezinga le-AA-level flatness
Isitifiketi se-NIST sidume ngezinqubo zakho eziqinile zokuhlola nokuhlola, injongo yako eyinhloko kuwukuqinisekisa ukuthi imishini yokulinganisa ihlangabezana nezindinganiso zokunemba ezihamba phambili emhlabeni. Emkhakheni we-granite straightedge, imfuneko yebanga le-AA ye-flatness iqine kakhulu. Ngokuvamile, kubalulwe ukuthi iphutha lokucaba ngaphakathi kwemitha ngalinye ubude kufanele lilawulwe phakathi kuka-±0.5μm. Leli zinga libeka phambili izidingo eziphakeme kakhulu zezakhiwo zezinto ezibonakalayo, ubuchwepheshe bokucubungula kanye nobuchwepheshe bokulinganisa be-straightedge. I-AA-level granite straightedge eqinisekiswe yi-NIST ayisona nje isiqinisekiso esithembekile sokulinganisa ukunemba okuphezulu, kodwa futhi iwubufakazi obunamandla bamandla obuchwepheshe bebhizinisi nekhwalithi yomkhiqizo.
Ii. I-Quality Foundation ye-ZHHIMG granite straightedge
I-ZHHIMG granite straightedge ibeke isisekelo sokunemba okuphezulu kusukela esigabeni sokukhetha izinto. I-granite yemvelo ekhethiwe yekhwalithi ephezulu, enokukhanya kwangaphakathi kwamaminerali aminyene kanye nesakhiwo esifanayo, ine-coefficient yokunweba okushisayo ephansi njengo-5-7 × 10⁻⁶/℃, futhi inamandla okuzinza kwemvelo nekhono lokulwa nokuguga, ihlinzeka ngenzuzo engokwemvelo yokuzuza ukucaba kweleveli ye-AA. Phakathi nesigaba sokucubungula, i-ZHHIMG isebenzisa amasu athuthukile afana nokugaya nokupholishwa kwe-CNC, kuhlanganiswe nemishini yokuthola ukunemba okuphezulu njenge-laser interferometers yokulinganisa kwesikhathi sangempela, ukuze kuqinisekiswe ukuthi ingaphezulu le-straighteer lifinyelela ukunemba okuphezulu kakhulu kokuqala ngesikhathi sokucubungula, ukudala izimo ezivumayo zomsebenzi wokulinganisa olandelayo.
Iii. Amalungiselelo Ngaphambi Kokulinganisa
Ngaphambi kokwenza ukulinganisa kwesitifiketi se-NIST, kuyadingeka ukuqinisekisa ukuthi i-straightedge isesimweni esihle kakhulu. Okokuqala, ingaphezulu le-straightedge kufanele lihlanzwe ngokujulile. Sebenzisa indwangu engena-lint kanye nesihlanzi esikhethekile ukuze ususe amabala kawoyela, uthuli nokunye ukungcola okungaphezulu ukuze ugweme ukungcola okuthinta ukunemba kokulinganisa. Okwesibili, beka i-straightedge endaweni enezinga lokushisa elingapheli kanye nomswakama isikhathi esingaphezu kwamahora angu-24 ukuyivumela ukuthi ivumelane ngokugcwele nezinga lokushisa lemvelo kanye nomswakama, isuse ukukhubazeka okuncane okungenzeka okubangelwa izinguquko zemvelo. Ngaphezu kwalokho, amathuluzi okulinganisa anembe kakhulu njengama-laser interferometer namazinga kagesi adinga ukulungiswa. Ukunemba kwalawa mathuluzi kuthinta ngokuqondile ukunemba kwemiphumela yokulinganisa.
Iv. Inqubo Yokulinganisa kanye Nobuchwepheshe Obubalulekile
Ukulinganisa okungalungile: Sebenzisa ileveli ye-elekthronikhi ukuze wenze isilinganiso sokuqala se-straightedge. Qoqa iphoyinti lokulinganisa ngezikhathi ezithile (ezifana no-100mm) ukuze uthole cishe idatha yekhonta yendawo eqondile. Ngokusekelwe emiphumeleni yokulinganisa, ingaphezulu le-straightedge lakhiwe cishe ngomshini ngemishini yokugaya ye-CNC ukuze kususwe amaphuzu aphezulu asobala, okwenza ukuba flatness kuqale kufinyelele izidingo ezijwayelekile zezinga le-AA.
Ukulinganisa okunembayo: Ukulinganisa okunembayo okuphezulu kwenziwa kusetshenziswa i-laser interferometer, engakwazi ukubona ngokunembile izinguquko zokuphakama ebusweni bokuqondisa okuqondile ezingeni le-micrometer. Ngokusekelwe kudatha ebuyiselwe yi-interferometer, ingaphezulu le-straightedge ligaywe kahle ngokuhlanganisa ukugaya okwenziwa ngesandla ne-CNC machining. Phakathi nenqubo yokugaya, ukucindezela kokugaya kanye nesiqondiso kudinga ukulungiswa njalo ukuze kuqedwe kancane kancane iphutha le-flatness, ukuze ukukhanya okungaphezulu kwe-straightedge kungafinyelela ezingeni eliphakeme.
Ukuqinisekisa okuphindaphindiwe nokulungisa kahle: Ngemva kokuqeda ukulinganisa okuhle, sebenzisa i-laser interferometer kanye neleveli ye-elekthronikhi ukuze wenze ukuhlola okuphelele kokuqondisa futhi ukuze uqinisekise ukuthi iphutha lokucaba lephoyinti ngalinye lokulinganisa lingaphakathi kwebanga elijwayelekile leleveli ye-AA. Uma amaphutha amancane etholakala endaweni, ukulungisa kahle okuhlosiwe kufanele kwenziwe kuze kube yilapho konke ukucaba kokuqondisa kuhlangabezana ngokugcwele nezimfuneko zezinga le-AA lesitifiketi se-NIST.
Isicelo Nokubuyekezwa Kwesitifiketi Se-V. NIST
Ngemva kokuqedela ukulinganisa nokuqinisekisa ukuthi i-straightedge izuze ukucaba kwezinga le-AA, ungahambisa isicelo sesitifiketi ku-NIST. Ngesikhathi senqubo yesicelo, imingcele enemininingwane yezobuchwepheshe ye-straightedge, izincazelo zobuchwepheshe bokucubungula, amarekhodi okulinganisa nezinye izinto kufanele zinikezwe. I-NIST izothumela ababuyekezi abangochwepheshe ukuze bahlole indawo kanye nokuhlola ukuqondisa. Ukubuyekeza kuzofaka izici eziningi ezifana nokucaba, ukuzinza kwe-thermal, nokumelana nokugqoka kwe-straightedge. I-granite straightedge kuphela eye yadlula ekubuyekezweni okuqinile engathola isitifiketi se-NIST futhi ibe umkhiqizo wokuma emkhakheni wokulinganisa ukunemba.
Ngokulandela imihlahlandlela yokulinganisa ye-ZHHIMG granite straightedge eshiwo ngenhla, amabhizinisi nezikhungo zocwaningo zingafinyelela isitifiketi se-NIST kanye nemigomo yokucaba yezinga le-AA ngendlela ephumelela kakhudlwana. Kungakhathaliseki ukuthi kusezimbonini ezinezimfuneko zokunemba eziphakeme kakhulu ezifana nokukhiqizwa kwemishini, i-aerospace, noma ama-electronic chips, i-ZHHIMG granite straightedge egunyazwe i-NIST izoba uzakwethu onokwethenjelwa ekuqinisekiseni ukunemba kwesilinganiso nekhwalithi yomkhiqizo, esiza amabhizinisi ukuthi aqhubeke nokufohla emkhakheni wokulinganisa ukunemba futhi aye esikhathini esizayo sokunemba okuphezulu.
Isikhathi sokuthumela: May-13-2025