Imibhobho yentsimbi engenamthungo enobubanzi obukhulu enobubanzi obukhulu, yenziwe ngee-ingots zentsimbi okanye intsimbi engqukuva eqinileyo egqobhozelwe kwityhubhu ye-capillary ize emva koko isongwe shushu. Imibhobho yentsimbi engenamthungo enobubanzi obukhulu enobubanzi obukhulu idlala indima ebalulekileyo kushishino lwelizwe lam lwemibhobho yentsimbi. Ngokweenkcukacha-manani ezingaphelelanga, bangaphezu kwama-240 abavelisi bemibhobho engenamthungo kwilizwe lam nangaphezu kwama-250 eeyunithi zemibhobho yentsimbi engenamthungo etyebileyo enodonga olukhulu. Imibhobho yentsimbi engenamthungo etyebileyo enobubanzi obukhulu isekelwe ikakhulu kububanzi bangaphandle bombhobho wentsimbi. Ngokuqhelekileyo, abo banobubanzi bangaphandle obungaphezu kwama-325 mm babizwa ngokuba yimibhobho yensimbi yobubanzi obukhulu. Ngokuphathelele iindonga ezingqingqwa, ngokubanzi, ezo ezinobunzima bodonga olungaphezulu kwe-20 mm zanele. Oku kulandelayo yinkqubo yokwenziwa kwemibhobho yentsimbi: Izinto ezikrwada zemibhobho yentsimbi ziintsimbi zemibhobho engenanto. Imibhobho engenanto kufuneka inqunywe ngumatshini wokusika ibe yinto engenanto kunye nobude obumalunga ne-1 mitha.

Kwaye ithunyelwe kwiziko lokufudumeza ngebhanti yokuhambisa. Ibillet ifakwa eziko kwaye ifudunyezwe kubushushu obumalunga ne-1200°C. Amafutha yihydrogen okanye iacetylene. Ulawulo lobushushu esithandweni ngumba ophambili. Emva kokuba ityhubhu ejikelezileyo iphuma eziko, kufuneka ihlatywe ngomatshini woxinzelelo. Ngokubanzi, oyena matshini uqhelekileyo wokugqobhoza ngumatshini wokugqobhoza onetapered. Olu hlobo lomatshini wokubhoboza lunomgangatho ophezulu wemveliso, umgangatho omhle wemveliso, ukwandiswa kwedayamitha ye-perforation enkulu, kwaye inokungena kwiindidi zentsimbi. Emva kokubhoboza, i-tube ejikelezileyo engenanto iqhutywe ngokulandelelanayo, iqhutywe ngokuqhubekayo, okanye ikhutshwe ngama-roller amathathu. Emva kwe-extrusion, umbhobho kufuneka ususwe kwaye ulinganiswe. Umatshini wokulinganisa ujikelezisa i-tapered drill bit ngesantya esiphezulu kwintsimbi engenanto yokubhoboza imingxuma ukwenza umbhobho wentsimbi. Ububanzi bangaphakathi bombhobho wensimbi buchongwa ngubude obungaphandle bobubanzi be-drill bit yomatshini wokulinganisa. Emva kokuba umbhobho wensimbi ulinganisiwe, ungena kwinqaba yokupholisa kwaye upholiswe ngokutshiza amanzi. Emva kokuba umbhobho wensimbi upholile, uya kulungiswa (enyanisweni, abaninzi abavelisi abasasebenzisi oomatshini bokulungelelanisa, kodwa baqondise ngokuthe ngqo umbhobho wensimbi emva kokuba udlule kwi-rolling mill. Ifikelele ekuqondeni kombhobho wayo wensimbi ngokwayo). Emva kokulungiswa, umbhobho wensimbi uthunyelwa kwi-metal flaw detector (okanye uvavanyo lwe-hydraulic) ngebhanti yokuhambisa ukukhangela impazamo yangaphakathi. Ukuba kukho ukuqhekeka, amaqamza, kunye nezinye iingxaki ngaphakathi kombhobho wensimbi, ziya kufunyanwa. Emva kokuhlolwa komgangatho, imibhobho yentsimbi kufuneka ithathelwe ngokungqongqo ukhetho lwezandla (ngoku zonke zinokuhlolwa kwelaser).