Ma electrode ang'onoang'ono a graphite, opangidwa ndi m'mimba mwake kuyambira 75mm mpaka 225mm, ma elekitirodi awa amapangidwa kuti azisungunula mwatsatanetsatane.Kaya mukufuna kupanga calcium carbide, kuyengedwa kwa carborundum, kapena kusungunula zitsulo zosowa, ndi Ferrosilicon plant refractory needs.maelekitirodi athu ang'onoang'ono a graphite amapereka yankho loyenera.