Njerwa ya magnesium-carbon imapangidwa bwino ngati imodzi mwazoletsa mpweya wa magnesium pakati pazaka za m'ma 1960,; Njerwa za magnesium-carbon zakhala zikugwiritsidwa ntchito kwambiri popanga zitsulo kotero zakhala zikugwiritsidwa ntchito pachikhalidwe cha graphite. Aluminiyamu-mpweya njerwa monga aluminiyamu mpweya refractory zakuthupi zimagwiritsa ntchito mosalekeza kuponyera, zoteteza chivundikiro kwa lathyathyathya zitsulo billet kudziona udindo payipi, m'madzi nozzle ndi mafuta chitsime kuphulika mbiya, etc. Crucible zopangidwa graphite kupanga ndi miphika zosagwira moto ndi zokhudzana ndi mankhwala, monga crucible wamba, yokhota kumapeto khosi botolo, pulagi ndi nozzle, ali mkulu kukana moto, otsika matenthedwe kukula, zitsulo kusungunuka ndondomeko, ndi kulowela zitsulo ndi kukokoloka kumakhalanso khola, zabwino matenthedwe kugwedezeka bata ndi madutsidwe matenthedwe kwambiri pa kutentha kwambiri. , Choncho graphite ndi mankhwala ake ogwirizana amagwiritsidwa ntchito kwambiri pokonza zitsulo mwachindunji kusungunuka.