Imishini yokulinganisa enezinhlanganisela ezintathu (ama-CMM) iyimishini enembile kakhulu futhi enembile engalinganisa ubukhulu bejometri yento ngokunemba okuphezulu. Isetshenziswa kakhulu embonini yokukhiqiza nobunjiniyela ukuqinisekisa ukuthi imikhiqizo ekhiqizwayo ihlangabezana nezindinganiso eziqinile. Ukuze kufezwe lokhu, kubalulekile ukuba nesisekelo esiqinile nesizinzile lapho i-CMM ingafakwa khona. I-Granite iyinto evame ukusetshenziswa kakhulu, ngenxa yamandla ayo aphezulu, ukuzinza, kanye nokumelana nokushintsha kwezinga lokushisa.
Ukukhetha usayizi nesisindo esifanele sesisekelo se-granite kuyisici esibalulekile okufanele usicabangele lapho ukhetha i-CMM. Isisekelo kumele sikwazi ukusekela i-CMM ngaphandle kokugoba noma ukudlidliza ngesikhathi sokulinganisa ukuqinisekisa imiphumela ehambisanayo nenembile. Ukuze wenze ukukhetha okuphelele, kunezinto ezimbalwa ezibalulekile okudingeka zicatshangelwe, njengokunemba okudingekayo, usayizi womshini wokulinganisa, kanye nesisindo sezinto okufanele zilinganiswe.
Okokuqala, ukunemba okudingekayo kokulinganisa kudinga ukucatshangelwa ngenkathi kukhethwa usayizi nesisindo esifanele sesisekelo se-granite se-CMM. Uma kudingeka ukunemba okuphezulu, khona-ke isisekelo se-granite esikhulu nesinamandla kakhulu siyathandwa, njengoba sizohlinzeka ngokuqina okukhulu kanye nokuphazamiseka okuncane kokudlidliza ngenkathi kulinganiswa. Ngakho-ke, usayizi ofanele wesisekelo se-granite uncike kakhulu ezingeni lokunemba elidingekayo lokulinganisa.
Okwesibili, ubukhulu be-CMM ngokwayo buthinta nosayizi kanye nesisindo esifanele sesisekelo se-granite. Uma i-CMM inkulu, kufanele kube nesisekelo se-granite esikhulu, ukuqinisekisa ukuthi inikeza ukwesekwa okwanele kanye nokuzinza. Isibonelo, uma umshini we-CMM ungamamitha angu-1 ngemitha eli-1 kuphela, khona-ke isisekelo esincane se-granite esinesisindo esingaba amakhilogremu angu-800 singanele. Kodwa-ke, kumshini omkhulu, njengowodwa olinganisa amamitha ama-3 ngamamitha ama-3, kuzodingeka isisekelo se-granite esikhulu futhi esikhulu kakhulu ukuqinisekisa ukuzinza komshini.
Okokugcina, isisindo sezinto ezizolinganiswa kuzodingeka sicatshangelwe lapho kukhethwa usayizi nesisindo esifanele sesisekelo se-granite se-CMM. Uma izinto zinzima kakhulu, khona-ke ukukhetha isisekelo se-granite esiqinile, futhi esizinzile, kuzoqinisekisa ukulinganiswa okunembile. Isibonelo, uma izinto zinkulu kune-1,000 kilograms, khona-ke isisekelo se-granite esinesisindo esingamakhilogremu angu-1,500 noma ngaphezulu singase sifaneleke ukuqinisekisa ukuzinza nokunemba kokulinganisa.
Ekuphetheni, ukukhetha usayizi nesisindo esifanele sesisekelo se-granite kubalulekile ukuqinisekisa ukunemba nokunemba kwezilinganiso ezithathwe ku-CMM. Kubalulekile ukucabangela izinga lokunemba elidingekayo, usayizi womshini we-CMM, kanye nesisindo sezinto okufanele zilinganiswe ukuze kunqunywe usayizi nesisindo esifanele sesisekelo se-granite. Ngokucatshangelwa ngokucophelela lezi zici, isisekelo se-granite esiphelele singakhethwa, esizohlinzeka ngokusekelwa okwanele, ukuzinza, futhi siqinisekise ukulinganiswa okunembile njalo.
Isikhathi sokuthunyelwe: Mashi-22-2024