Carbon karfe bututuna ciki lahani da aka haifar a cikin carbon karfe smelting lahani smelting da simintin tsari, kamar rabuwa, wadanda ba karfe inclusions, porosity, shrinkage da fasa.

Warewa

Rabewa shine rashin daidaituwar rabon sinadarai a cikin karfe, musamman abubuwa masu cutarwa kamar su sulfur, wadatar phosphorus a cikin ingot.

Abubuwan da ba na ƙarfe ba

Haɗin da ba na ƙarfe ba yana nufin abubuwan da ba ƙarfe ba a cikin ƙarfe mai ɗauke da ƙazanta kamar sulfide da oxides.

Stomata

Stomata yana nufin baƙin ƙarfe da iskar gas ɗin carbon monoxide da aka haifar a cikin zub ɗin ba zai iya cika cikakkiyar tserewa ba kuma ya zauna a cikin ƙananan pores a cikin ingot.

Ragewa

Shrinkage ne saboda ruwa karfe ingot mold daga waje zuwa ciki, da girma ƙanƙancewa a lokacin solidification kasa-up, saboda matakin saukad da, karshe solidification na ruwa karfe sassa ba za a iya kara da cewa samar.

Kara

Solidification na ruwa karfe a cikin tsari saboda daban-daban haddasawa danniya, tashin hankali fasa iya bayyana manyan sassa.