Umzekelo weCarrara Marble
I-Pantheon kunye neKholam yaTrajan eRome zakhiwe yiCarrara Marble. Izwi elidumileyo likaAgasto lithi: "Ndifumene iRoma isixeko sezitena kwaye ndishiya isixeko semarble" ("Marmoream relinquo, quam latericiam accepi") .
Imifanekiso emininzi ye-Renaissance (uDavid waseMichelangelo, phakathi kwamanye amaninzi) nawo aqoshwe kwiibhloko zeemabula ezikhishwe kwiCarrara.
Igama elithi "Carrara" ngokwayo lenziwe nge "Celyara" kaCeltic okanye iLigurian ifomu elithi "kar," elisentsingiselo ethi "ilitye" . I-consonant R ephindwe kabini inokuvela kwi-French "Carrière" (i-quarry). Ngenxa yobudala bayo kunye nobukhulu bemveliso, uCarr isifundo esithile esipheleleyo kunoma ubani ofuna ukufundisisa ukuguqulwa kweendlela zobuqhetseba zeemabula kwixesha elide.
Ixesha LamaRoma
AmaRoma athiwa yiCarrara marble marmor lunensis ("i-marble yeLuni" ngenxa yokuba yayilayishwe kwiinqanawa echwebeni laseLuni, ekupheleni kwempumalanga ye-Liguria enyakatho ye-Italy.
Umsebenzi wokucoca, ngokukodwa kwincwadi yeencwadi, wenziwa ngabantu abasebenza ngokugqithiseleyo ngamagunya ekunyanzelekeni abasebenzi, amakhoboka kunye namaKristu. Abavukuzi bokuqala baxhaphaza i-fissures yemvelo yedwala, apho iifani zamakhiwane zafakwa khona kwaye zahluthwa ngamanzi ukuze ukwandiswa kwemvelo kubangele iqela lebhokisi.
Kwiibhloko zeesayizi eziqingqiweyo, ngokuqhelekileyo ezi-2 metres ezinqamlekileyo, amaRoma asetyenzise indlela ye "ipaneli" eqhuba kwiibhloko ezikhethiweyo, i-15-20 cm enqambileyo enqamlekileyo apho ifakwe iziselisi zensimbi. Emva kokugquma okuqhubekayo, ibhloko ekugqibeleni lahlukaniswa nentaba.
Ukusetyenziswa koMbhobho Omnyama: Akunjalo Isimo esihle
Ukusetyenziswa kompu omnyama waba yingxenye yamasu e-marrari eCarrara ngexesha leXeshumi elinesibhozo.
I-Apennine landscape yangena kutshintsho olukhulu. Amakhi amakhulu amakhulu (ebizwa ngokuthi "ravaneti" ) abonisa indlela i-marble edibene ngayo ichithwe ngayo ngokusetyenziswa kweziqhumane.
Izixhobo zokucoca ngamatye ezihlobisayo zithatha indawo yazo apho "ukukhathazeka kokuqala kungakhange kube yonakalise ilitye ngexesha lokukhutshwa, okwenza ukuba akufaneleki ukusetyenziswa ngakumbi", njengoko sele kukhankanywe kwinqaku elidlulileyo.
I-Helical Wire: I-Revolution yangempela
Ukuguqulwa kwangempela kwindlela yokukhangela i-marble eyenziwa ekupheleni kwekhulu le-19 kunye nokuveliswa kwentambo ye-helical kunye ne-pulley engena ngaphakathi. Le ndlela isekelwe kwi-4 ukuya kwi-6-millimeters ububanzi be-wire wire kunye ne-action abrasive yesihlabathi se-silika kunye nenani elincinci lamanzi njenge-lubricant.
Intambo ye-helical iyinto eqhubekayo yokutshintshwa kwensimbi enokutshatyalaliswa kwisantya se-5 ukuya kwi-6 emitha ngomzuzwana kwaye yinqumle i-marble kwisilinganiso sama-20 centimitha ngeyure. Ukusetyenziswa kweli cwangciso elitsha phantse kufakela ngokutsha ukusetyenziswa kweziqhushumbisi kwaye kwatyhilwa utshintsho olubonakalayo kwindawo yokuma komhlaba. Intaba yaqala ukuchithwa ngokuchanekileyo, ukudala imimandla ye-surreal eyenziwe ngeenqwelo ezinzulu zamanyathelo kunye neeplatifti, ezibizwa ngokuthi "piazzali di cava" .
"I-Diamond cutting cutting yenziwe eNgilani kwiminyaka ye-1950, ekuqaleni i-diamond ekhethiweyo ekhethiweyo kwi-cable ngentsimbi ye-multi-strand. e-Italy, " wabhala uShane McCarthy ephepheni eliphawulekayo malunga nokunquma kwamadayimane (iQueensland Roads Technical Journal, ngoMashi 2011, iphepha 29-39) .
I-diamond wire sawing isasetyenziswa namhlanje kwi-marble industry, ngokukodwa eCarrara. "I-diamond wire sawing idinga ukuqhuba okokuqala izimbobo ezibini (enye enye ejikelezileyo kwibhentshi kunye ne-vertical ukusuka phezulu) edibanayo, ngokubhekiselele kwisayizi yebhloko yokunquma.
Emva koko ikhebula lijikelezwa ngumatshini ofakwa kwiivili. Ngokujika, ikhebula ibona idwala. Umshini uhamba ngokuqhubekayo kwimizila ukuze kugcinwe ikhebula kuze kube sekupheleni kokusika. Le ndlela isetyenziswe ngokubanzi njengoko ivumela ukuba ilandelelwe kwaye kulula ukuyifaka ibhloko ngokukhawuleza, " njengoko ichazwe kwinqaku yam yakutshanje malunga neendandatho zamatye ezinje.