Hauv smelting ntawm ferrosilicon thiab nws cov silicon alloys, kev ua haujlwm arc nyob rau hauv flux yog siv. Cov electrodes yog raws li tso rau hauv "crucible" tsim los ntawm cov khoom smelting, thiab feem ntau ntawm lub zog yog tso tawm ntawm no.
Cov txheej txheem melting nyob rau hauv lub cub tawg feem ntau yog nyob rau hauv ib tug "crucible" ib sab ntawm lub electrode. Nyob rau sab sauv ntawm lub "crucible" muaj "crucible" hau tsim los ntawm cov khoom txias. Lub phab ntsa ntawm lub crucible thiab lub hau ntawm lub crucible yog tsis tu ncua melted, thiab nyob rau hauv lub zog ntawm lub ntiajteb txawj nqus ntawm tus nqi, lawv yog hloov los ntawm ib tug tshiab khoom nyob rau saum toj. Yog li ntawd, "crucible" tsis tuaj yeem suav tias yog lub thawv ntim khoom hauv qab ntawm electrode, tab sis raws li qhov kub-kub tshuaj tiv thaiv cheeb tsam uas sai sai tsim nyob rau hauv qis ntawm cov electrode. Thaum kub kub nyob rau hauv lub cub tawg, lub hauv qab ntawm peb "crucibles" yog ua ke rau hauv ib tug tag nrho, tsim ib tug xwb "crucible". Qhov qis ntawm qhov "crucible" no yog cov kab noj roj. Qhov kev ncua deb ntawm lub electrode thiab yaj (hauv qab ntawm lub crucible) yog hais txog 300 mm.
Thaum lub tshuab hluav taws xob tig, lub tshuab hluav taws xob ua rau tus nqi zoo li ploughing, ob npaug ntawm cov tshuaj tiv thaiv cheeb tsam, lub qhov cub tawg yog du, qhov ntau tshaj ntawm tus neeg saib xyuas yuav tsawg dua, thiab tus neeg saib xyuas qib qis tuaj yeem siv tau. Vim hais tias cov electrodes tau muab tso rau hauv qhov tob thiab lub qhov cub hauv qab tau zoo rhuab, lub slag raug tso tawm kom zoo thiab cov carbides raug puas tsuaj, uas txhim kho cov xwm txheej ntawm lub cub tawg thiab txuas ntxiv lub neej ntawm lub qhov cub hauv ob sab phlu.