Kwihlabathi le-metrology echanekileyo kakhulu, isixhobo sokulinganisa i-granite asiyonto nje ilitye elinzima; ngumgangatho osisiseko apho zonke ezinye izilinganiso zijongwa khona. Ukuchaneka kokugqibela—okufezekisiweyo kuluhlu lwe-micron kunye ne-sub-micron—kuqala kudala ngaphambi kwenkqubo yokugqibela, ecokisekileyo yokuleqa. Kodwa zeziphi iinkqubo zokuqala ezibeka isiseko sokuchaneka okungenakuthelekiswa nanto? Iqala ngamanqanaba amabini abalulekileyo, asisiseko: ukukhethwa okungqongqo kwezinto ze-granite eluhlaza kunye nenkqubo yokusika echanekileyo kakhulu esetyenziselwa ukuyibumba.
Ubugcisa neSayensi yoKhetho lwezinto eziphathekayo
Ayizizo zonke iigranite ezidalwe zilingana, ingakumbi xa imveliso yokugqibela kufuneka isebenze njengesixhobo sokulinganisa esizinzileyo, esikumgangatho ongqinisisiweyo njengepleyiti yomphezulu, isikwere esi-tri, okanye umda othe tye. Inkqubo yokukhetha inzulu ngokwesayensi, igxile kwiimpawu zomzimba eziqinisekisa uzinzo lobukhulu beminyaka emininzi.
Sifuna ngokukodwa iintlobo zegranite emnyama ezinoxinano olukhulu. Umbala ubonisa uxinano olukhulu lweeminerali ezixineneyo nezimnyama, ezifana ne-hornblende, kunye nesakhiwo seenkozo ezicolekileyo. Olu lwakhiwo alunakuxoxiswana ngalo ukuze kusetyenziswe ngokuchanekileyo ngenxa yezizathu ezininzi eziphambili. Okokuqala, i-Porosity ephantsi kunye ne-High Density zibaluleke kakhulu: isakhiwo esiqinileyo, esincinci sinciphisa izithuba zangaphakathi kwaye sandisa uxinano, nto leyo ethetha ngokuthe ngqo kwiimpawu zokudambisa zangaphakathi eziphezulu. Lo mthamo wokudambisa ophezulu ubalulekile ekutsaleni ngokukhawuleza ukungcangcazela komatshini, ukuqinisekisa ukuba imeko yokulinganisa ihlala izinzile ngokupheleleyo. Okwesibini, izinto kufuneka zibonise i-Coefficient ephantsi kakhulu yoKwandiswa kobushushu (COE). Le propati ibalulekile, njengoko inciphisa ukwanda okanye ukucutheka ngokuguquguquka kobushushu okuqhelekileyo kwindawo yokulawula umgangatho, iqinisekisa ukuba isixhobo sigcina ukuthembeka kwaso kobukhulu. Okokugqibela, igranite ekhethiweyo kufuneka ibe namandla aphezulu okuxinzelela kunye noSasazo lweMineral oluQhelekileyo. Olu lungelelwaniso luqinisekisa ukuba izinto ziphendula ngokuqikelelweyo ngexesha lokusika okulandelayo kwaye, okubaluleke ngakumbi, inqanaba elibalulekileyo lokulapha ngesandla, okusivumela ukuba sifezekise kwaye sibambe ukunyamezela kwethu okufunekayo kokuthe tyaba.
Inkqubo Yokusika Ngokucokisekileyo
Nje ukuba ibhloko eluhlaza efanelekileyo ikhutshwe kwindawo yokumba, isigaba sokuqala sokubumba—ukusika—yinkqubo yemizi-mveliso ephucukileyo eyenzelwe ukunciphisa uxinzelelo lwezinto ezibonakalayo nokulungiselela ukugqitywa ngokuchanekileyo. Iindlela zokusika ezenziwe ngomthi eziqhelekileyo azanelanga; i-precision granite ifuna izixhobo ezikhethekileyo.
Indlela yangoku yokusika iibhloko zegranite ezinkulu yiDiamond Wire Saw. Le ndlela ithatha indawo yeeblade zendabuko ezijikelezileyo ngomjiko oqhubekayo wentambo yentsimbi enamandla aphezulu efakwe kwiidayimani zemizi-mveliso. Ukusetyenziswa kwale ndlela kunika iingenelo ezahlukeneyo: iqinisekisa uXinzelelo oluNciphisiweyo kunye noBushushu kuba isarha yedayimani isebenza ngendlela eqhubekayo, eneenkalo ezininzi, esasaza amandla okusika ngokulinganayo kuyo yonke into. Oku kunciphisa umngcipheko wokungenisa uxinzelelo olushiyekileyo okanye ii-micro-cracks kwigranite—ingozi eqhelekileyo ngeendlela zokusika ezinempembelelo enkulu. Okubaluleke kakhulu, le nkqubo ihlala imanzi, isebenzisa umsinga wamanzi oqhubekayo ukupholisa ucingo kunye nokususa uthuli lwegranite, ngaloo ndlela ithintela umonakalo wobushushu bendawo onokuthi uphazamise ukuzinza kwexesha elide kwento. Le ndlela ikwavumela ukusebenza kakuhle kunye nomlinganiselo, ivumela ukwakheka ngokuchanekileyo kweebhloko ezinkulu—ezifunekayo kwiiplati zomphezulu wegranite ezinkulu okanye iziseko zoomatshini—ngolawulo olungazange lubonwe ngaphambili, olubonelela ngejometri echanekileyo yokuqala enciphisa kakhulu ixesha kunye nenkunkuma yezinto ezibandakanyekayo kwizigaba ezilandelayo zokusila ezirhabaxa.
Ngokugxila ngokungapheziyo ekukhetheni izinto ezixineneyo nezizinzileyo kunye nokusebenzisa iindlela zokusika eziphucukileyo nezinciphisa uxinzelelo, siqinisekisa ukuba isixhobo ngasinye sokulinganisa i-granite ye-ZHHIMG senziwe ngomgangatho ofunekayo kwiimilinganiselo ezichanekileyo zehlabathi. Ukuleqa okucokisekileyo okulandelayo sisenzo sokugqibela kwinkqubo yemveliso eyilwe ngobuchule.
Ixesha leposi: Oktobha-24-2025