Foda karfe tushen tsarin sassa ne tsarin sassa kerarre ta foda metallurgy fasahar tare da baƙin ƙarfe foda ko gami karfe foda a matsayin babban albarkatun kasa.Abubuwan da ake buƙata don irin wannan nau'in sassa shine samun isassun kayan aikin injiniya, juriya, aikin injina mai kyau, wani lokacin zafi da juriya na lalata.An yi amfani da sassa na ƙarfe na ƙarfe na foda sosai a fannoni daban-daban na tattalin arzikin ƙasa.Musamman a masana'antar kera motoci, kashi 60% zuwa 70% na sassan ƙarfe na ƙarfe na ƙarfe a cikin ƙasashen da suka ci gaba ana amfani da su a cikin motoci, irin su camshafts, kujerun shaye-shaye, na'urorin bututun ruwa da kuma gears iri-iri.

Halayen foda metallurgy ƙarfe tushen tsarin sassa: (1) Sassan suna da babban girma daidaito, wanda zai iya zama ƙasa da kuma ba tare da yankan;(2) Rashin lafiya.Idan aka kwatanta da ƙananan karafa, ƙarfe na tushen foda ƙarfe tsarin sassa sun rarraba pores daidai gwargwado.Ƙunƙarar da aka rarraba daidai da juna na iya kawar da man fetur mai lubricating don inganta abubuwan da ke haifar da rikice-rikice na kayan aiki, kuma nau'in nau'in nau'in nau'in nau'in nau'i na nau'i na nau'i na nau'i na nau'i na nau'in nau'i na nau'i na nau'i na nau'i na nau'i na nau'i na tasiri mai yawa tare da ƙananan makamashi.Duk da haka, pores na iya rage kayan aikin injiniya na kayan kamar ƙarfin ƙarfi, haɓakawa bayan karaya, da tasiri mai ƙarfi, kuma yana rinjayar juriya na lalata kayan aiki, ƙarfin zafi, ƙarfin lantarki, da ƙarfin maganadisu.Duk da haka, bisa ga buƙatun aikace-aikacen, ana iya sarrafa girman pore da rarraba pore ta hanyar daidaita abubuwan da ke tattare da kayan, girman barbashi da tsari.Koyaya, ƙarami girman pore, mafi girman farashin masana'anta.(3) Babu rarrabuwa na alloying abubuwa da lafiya da kuma uniform crystal hatsi.Abubuwan haɗakarwa a cikin kayan aikin ƙarfe na tushen ƙarfe ana samun su ta hanyar ƙara abubuwan foda masu haɗawa da haɗa su.Ba tare da narkewa ba, adadin da nau'ikan abubuwan haɗin da aka ƙara ba su da tasiri ta iyakancewar solubility da rarrabuwa mai yawa, kuma ana iya shirya allunan da ba su da rarrabuwar kawuna.Pores yana hana haɓakar hatsi, don haka hatsin kayan aikin ƙarfe na ƙarfe sun fi kyau.