Mmetụta nkespheroidizer(nodularizer) na nkedo ígwè bụ okpukpu abụọ:

1, obere ụwa dị ka onye na-ahụ maka nodulating gbazere na ígwè a wụrụ awụ nwere mmetụta siri ike na nhazi nke carbide.Ọ bụ ihe mgbochi antigraphitized. Otú ọ dị, na-agbakwunye obere obere ụwa na-adịghị ahụkebe na spheroidizer dabeere na magnesium nwere ike ime ka ọnụ ọgụgụ na-agbaze nke nkedo dị ukwuu. ígwè. Belata; Ọ bụrụ na ihe mgbakwunye ahụ buru ibu, ọdịdị nke nkedo ígwè ga-akawanye mma. Ihe a yiri ka ọ na-emegiderịta onwe ya adịghị emegiderịta onwe ya. Nke ahụ bụ n'ihi na ala ndị na-adịghị ahụkebe nwere ikike siri ike ijikọ na sọlfọ na oxygen.

2, mgbespheroidizernwere obere ụwa ọcha, ya sulfide na oxides bụ nnọọ kwụsiri ike, obere urughuru size, ọ na-esiri ike ise n'elu na a wụrụ awụ iron. Tụkwasị na nke ahụ, mismatch n'etiti ndị a ogige na graphite lattice bụ nnọọ obere na ike ga-eji dị ka heterogeneous precipitates nke. graphite nuclei.Magnesium oxide MgO bụ spheroidizing gị n'ụlọnga na elu agbaze ebe, ezi nkwụsi ike na ala solubility na gbazee ígwè, ma mgbe urughuru size bụ ntakịrị ibu, ọ ga-ese n'elu na-aghọ scum, ma ọ bụ nwere ike itinye aka na. nkedo nke nsonye slag.

Nodulizer(ReMgSiFe), bụ ihe na-eri ahụ nke nwere ike ịkwalite ịmepụta graphite spheroidal site na mpempe graphite na usoro mmepụta.Ọ nwere ike ịkwalite graphites spheroidal ma mee ka ọnụ ọgụgụ nke graphites spheroidal dị elu ka e wee meziwanye akụrụngwa ha.N'ihi ya, ductility na ike nke ngwaahịa na-emeziwanye ka ike na ọrụ ha na-esiwanye ike.

The arọ ụkọ-ụwanodulizersnwee ikike siri ike na mgbochi nlaazu, mgbochi na mgbochi nnyonye anya na usoro mmepụta.A na-achịkwa magnesia ya n'ụzọ bụ isi n'ime 0.6%.Site na ígwè mbụ gbazere agbaze na teknụzụ nodulizing tozuru oke, enwere ike ijikwa magnesium nke fọdụrụ nke ọma.