Zotsatira zaspheroidizer(nodularizer）pachitsulo chosungunuka ndi pawiri:

1, Dziko losowa ngati nodulating wothandizira wosungunuka muchitsulo chosungunula limakhudza kwambiri mapangidwe a carbide.Ndi chinthu chotsutsana ndi graphitized. chitsulo.Chepetsani;Ngati kuchuluka kwake kuli kwakukulu, chizolowezi cha chitsulo chosungunuka chidzasintha.Zowoneka ngati zotsutsanazi sizimatsutsana.Ndi chifukwa chakuti maiko osowa amakhala ndi luso lamphamvu lophatikizana ndi sulfure ndi mpweya.

2, pamenespheroidizer lili ndi zinthu zosowa zapadziko lapansi, sulfide yake ndi oxides ndizokhazikika kwambiri, kukula kwa tinthu tating'ono, ndizovuta kuyandama muchitsulo chosungunuka. Kuphatikiza apo, kusagwirizana pakati pa mankhwalawa ndi graphite lattice ndikochepa kwambiri ndipo kumatha kugwiritsidwa ntchito ngati ma precipitates osiyanasiyana. Magnesium okusayidi MgO ndi spheroidizing wothandizila ndi mkulu kusungunuka mfundo, zabwino bata ndi otsika solubility mu chitsulo chosungunuka, koma pamene tinthu kukula ndi lalikulu pang'ono, izo tiyandama pamwamba kukhala zinyalala, kapena mwina nawo kuponyedwa kwa slag kuphatikizidwa.

Nodulizer (ReMgSiFe),ndi chidakwa chomwe chimatha kulimbikitsa mapangidwe a spheroidal graphite kuchokera ku zidutswa za graphite popanga.Itha kulimbikitsa ma graphite a spheroidal ndikuwonjezera kuchuluka kwa ma graphite a spheroidal kotero kuti makina awo amawongoleredwa bwino.Zotsatira zake, ductility ndi kulimba kwa zinthuzo zasinthidwa kuti mphamvu zawo ndi ntchito zawo zikhale zolimba kwambiri.

Wolemera osowa-dziko lapansinodularssangalalani ndi mphamvu zolimba zotsutsana ndi kuchepa kwachuma, kutsutsa-kusokoneza komanso kusokoneza pakupanga.Magnesia ake amayendetsedwa mkati mwa 0.6%.Ndi chitsulo chosungunula chokhazikika komanso ukadaulo wokhwima wa nodulizing, magnesium yotsalirayo imatha kuwongoleredwa mokhazikika.