Isikhokelo Sokulungisa Nokulungisa Ipleyiti Yomphezulu Wegranite: Ipleyiti yomphezulu wegranite echanekileyo ifuna umatshini okhethekileyo wokulungisa nokugcina ixesha elide ukuqinisekisa ukuchaneka kwayo kunye nobude bayo. Ngaphambi kokuyipolisha, icandelo legranite kufuneka liqale licutshungulwe ngomatshini kwaye lilungiswe ngokuthe tye ngokusekelwe kwimigaqo yokubeka indawo engunxantathu. Emva kokusila okuthe tye, ukuba umatshini we-CNC awunakufikelela ekuchanekeni okufunekayo—ngokuqhelekileyo ukufikelela ekuchanekeni kweBanga 0 (ukunyamezelana kwe-0.01mm/m njengoko kuchaziwe kwi-DIN 876)—ukugqiba ngesandla kuba yimfuneko ukuze kufezekiswe amanqanaba aphezulu okuchaneka afana neBanga 00 (ukunyamezelana kwe-0.005mm/m ngokwemigangatho ye-ASTM B89.3.7).
Inkqubo yokugaya ibandakanya amanyathelo aliqela abalulekileyo. Okokuqala, ukugaya okurhabaxa kumisela ukuthamba okusisiseko, kulandelwe kukugqiba okuncinci kwesibini ukususa amanqaku okugaya. Ukugaya ngokuchanekileyo, okwenziwa ngesandla, kuphucula umphezulu ukuze kufezekiswe ukunyamezela ukuthamba okufunekayo kunye nokuthamba komphezulu (ixabiso likaRa liyi-0.32-0.63μm, apho uRa umele ukuphambuka okuphakathi kwezibalo kwiprofayili yomphezulu). Okokugqibela, ukuhlolwa ngononophelo kuqinisekisa ukuthotyelwa kwemigangatho yobugcisa, kunye namanqaku okulinganisa abekwe ngobuchule kwi-diagonals, imiphetho, kunye nemigca ephakathi—ngesiqhelo amanqaku ali-10-50 kuxhomekeke kubungakanani bepleyiti—ukuqinisekisa uvavanyo lokuchaneka okufanayo.
Ukuphathwa nokufakelwa kuchaphazela kakhulu ukuchaneka. Ngenxa yokuqina kwegranite (ubulukhuni beMohs 6-7), ukuphakanyiswa okungafanelekanga kunokubangela ukuguquka okungapheliyo. Kwiinkqubo ezibalulekileyo ezifuna ukuchaneka kweGrade 00, ukugoba ngesandla emva kokufakwa kubalulekile ukubuyisela ukuchaneka okuphazamisekileyo ngexesha lokuthuthwa. Olu qwalaselo kwiinkcukacha luhlukanisa iipleyiti zomphezulu wegranite ochanekileyo kwiinguqulelo eziqhelekileyo ezenziwe ngomatshini.
Iindlela zokulungisa zichaphazela ngokuthe ngqo ukusebenza kunye nobomi. Qala ngokucoca ngokucokisekileyo usebenzisa izicoci ze-pH ezingathathi cala—phepha izinto ezine-asidi ezinokukrazula umphezulu. Ukulinganisa rhoqo ngonyaka ngee-interferometers ze-laser, ezinokulandelelwa ngokwemigangatho ye-NIST, kuqinisekisa ukuchaneka okuqhubekayo. Xa ubeka izinto zokusebenza, vumela ukulingana kobushushu (ngesiqhelo imizuzu eli-15-30) ukuthintela iimpazamo zokulinganisa kwiinguqu zobushushu. Ungaze utyibilize izinto ezirhabaxa kumphezulu, njengoko oku kunokubangela imikrwelo emincinci echaphazela ukuthamba.
Izikhokelo ezifanelekileyo zokusetyenziswa ziquka ukuhlonipha imida yomthwalo ukuthintela ukuguquka kwesakhiwo, ukugcina iimeko zokusingqongileyo ezizinzileyo (ubushushu obuyi-20±2°C, ukufuma okungu-50±5%), kunye nokusebenzisa izixhobo zokuphakamisa ezizinikeleyo ukuthintela umonakalo wendiza eqhekekileyo. Ngokungafaniyo nezinye izinto zesinyithi, ukuzinza kobushushu begranite (0.01ppm/°C) kunciphisa iimpembelelo zokusingqongileyo, kodwa utshintsho olukhawulezileyo lobushushu kufuneka luphetshwe.
Njengesixhobo esisisiseko kwi-precision metrology, ii-granite surface plates eziqinisekisiweyo (ezivunyiweyo yi-ISO 17025) zisebenza njengomgangatho wesalathiso sokulinganisa ubukhulu. Ukugcinwa kwazo kufuna umgudu omncinci—ukuzisula nje ngelaphu elingena-lint emva kokusetyenziswa—akukho mfuneko yeengubo ezikhethekileyo okanye ii-lubricants. Ngokulandela le migaqo yokulungisa nokunyamekela, ii-precision granite surface plates zibonelela ngokusebenza okuthembekileyo kangangeminyaka emininzi, nto leyo ezenza zibe yimfuneko kwiilabhoratri zokulinganisa, ukuvelisa i-aerospace, kunye nezicelo zobunjineli obuchanekileyo.
Ixesha leposi: Novemba-19-2025