Grey Cast Iron Castings

Grey jefa baƙin ƙarfe (kuma ana kiranta launin toka jefa baƙin ƙarfe) rukuni ne na baƙin ƙarfe na sama har da nau'i-nau'i na aji gwargwadon ƙa'idodi daban-daban. Grey simintin ƙarfe wani nau'i ne na ƙarfe-carbon gami kuma yana samun sunansa "launin toka" saboda gaskiyar cewa sassan sassan su suna launin toka. Tsarin metallographic na baƙin ƙarfe simintin launin toka ya ƙunshi graphite flake, matrix ƙarfe da eutectic iyakar hatsi. A lokacin baƙin ƙarfe launin toka, Carbon yana cikin graphite flake. A matsayin ɗaya daga cikin karafa na simintin gyare-gyaren da aka yi amfani da su sosai, simintin ƙarfe na simintin gyare-gyare yana da fa'idodi da yawa a cikin farashi, haɓakawa da machinablity.