Abubuwan da aka haɗa an shigar da su tagulla don dalilai da yawa.Wasu ainihin sakamakon da ake so shine haɓakawa zuwa ƙarfin ɗaure, taurin, tasiri kaddarorin, da ductility.Abubuwan da aka shigar da tagulla kuma za su sami mafi girma yawa.

Sauran dalilan da abokan ciniki za su iya zaɓar shigar jan ƙarfe don haɓaka lalacewa ko don toshe kwararar iska/gaz ta wani abu mara kyau a yanayin zafi wanda resin ba zai yi aiki ba.Wani lokaci ana amfani da infiltration na jan karfe don haɓaka halayen mashin ɗin PM karfe;jan ƙarfe yana barin ƙarewar injin mai santsi.

Ga yadda shigar tagulla ke aiki:

Tsarin tushe na ɓangaren yana da sanannen ƙima, wanda ake amfani dashi don ƙayyade adadin buɗaɗɗen porosity.An zaɓi adadin da aka auna na jan karfe wanda ya dace da adadin porosity da za a cika.Tagulla na cika porosity yayin aikin sintiri (a yanayin zafi sama da narkar da tagulla) kawai ta hanyar sanya jan ƙarfe a kan abin da ke gaba kafin a fara ƙwanƙwasa.Matsakaicin zafin jiki na>2000°F yana ba da damar narkakkar jan ƙarfe ta gudana zuwa cikin porosity na ɓangaren ta hanyar aikin capillary.An kammala sintering a kan mai ɗaukar kaya (misali farantin yumbu) don haka jan ƙarfe ya tsaya akan ɓangaren.Da zarar an sanyaya sashin, jan ƙarfe yana ƙarfafa a cikin tsarin.

Babban Hoto(dama): Sassan da aka taru tare da slugs na jan karfe da aka shirya don sintiri.(Hoto daga Atlas Pressed Metals)

Hoto na kasa(dama): Karamin tsarin sashi yana nuna yadda jan karfe ke shiga buɗaɗɗen porosity.(Hoto daga Dr. Craig Stringer - Atlas Pressed Metals)