Insimbi ebuleweiyinsimbi ekhishwe i-deoxid ngokuphelele ngokwengezwa kwe-ejenti ngaphambi kokuphonsa kangangokuthi kungabikho ukuvela kwegesi ngesikhathi sokuqina. Ibonakala ngezinga eliphezulu le-homogeneity yamakhemikhali kanye nokukhululeka kuma-gas porosities.

Insimbi ebulewe kancane ngokuvamile iyinsimbi ekhishwe yi-deoxidized, kodwa i-carbon monoxide ishiya uhlobo lwe-blowhole porosity esabalaliswe kuyo yonke ingot. I-porosity iqeda ipayipi elitholakala ensimbi ebulewe futhi inyusa isivuno sifinyelele cishe ku-90% ngesisindo. Insimbi ebulewe kancane ijwayele ukusetshenziselwa insimbi yesakhiwo enokuqukethwe kwekhabhoni phakathi kuka-0.15 no-0.25% wekhabhoni, ngoba igoqiwe, evala i-porosity.

Insimbi eboshwe, eyaziwa nangokuthi insimbi yekhwalithi yokudweba, ayinalutho oluncane lwe-deoxidizing engezwe kuyo ngesikhathi sokusakazwa okubangela ukuba i-carbon monoxide iguquke ngokushesha isuka ku-ingot. Lokhu kubangela izimbobo zokushaya ezincane endaweni ezivaleka kamuva enqubweni yokuginqika okushisayo. Iningi lensimbi enerimu linokuqukethwe kwekhabhoni ngaphansi kuka-0.25%, okuqukethwe kwe-manganese okungaphansi kuka-0.6%, futhi ayihlanganiswa ne-aluminium, i-silicon, ne-titanium.Ngenxa yokungafanani kwezinto ezixubileyo ayinconyelwe izinhlelo zokusebenza ezishisayo.