Kusungunula
Kupeza kutentha kwambiri komanso chitsulo chotsika cha sulfure ndi chinsinsi chopanga chitsulo chamtundu wapamwamba kwambiri. Zida zopangira zapakhomo zimachokera ku cupola, ndipo zitsulo zotentha sizingathetsere chithandizo cha desulfurization; Izi zimatsatiridwa ndi chitsulo chosayera kwambiri cha nkhumba komanso mtundu wochepa wa coke. Chitsulo chosungunula chimasungunuka mu cupola, sulfurized kunja kwa ng'anjo, ndiyeno chimatenthedwa ndi kusinthidwa mu ng'anjo yolowera. Ku China, kudziwika kwa chitsulo chosungunuka nthawi zambiri kumachitika ndi vacuum molunjika kuwerenga spectrometer.
kuumba
Njira yopangira mlengalenga mwachiwonekere ndiyabwino kuposa njira yopangira mchenga wadongo, ndipo imatha kupeza ma crankshaft apamwamba kwambiri. Mchenga wopangidwa ndi njirayi umakhala ndi mawonekedwe osasinthika, omwe ndi ofunikira kwambiri pa crankshaft yamitundu yambiri. Ena opanga crankshaft m'banja ku Germany, Italy, Spain ndi mayiko ena kuti adziwe mpweya mmene akamaumba ndondomeko, koma kumayambiriro kwa mzere kupanga lonse ndi ochepa kwambiri opanga.
Kutulutsa kwa Electroslag
Ukadaulo wowongolera wa Electroslag umagwiritsidwa ntchito popanga crankshaft, kotero kuti magwiridwe antchito a crankshaft atha kufananizidwa ndi crankshaft yopanga. Ndipo ali ndi mikhalidwe ya kuzungulira kwachitukuko, kuchuluka kwazitsulo zogwiritsidwa ntchito, zida zosavuta, magwiridwe antchito apamwamba ndi zina zotero.