Inqubo yokucwenga icishe ibe kanjena:
1. Qala ukwehlisa izinga lempahla amahora ayisishiyagalombili ngaphambi kokucwenga ukuze unciphise ukunqwabelana kwezinto ezingama-75 ze-ferrosilicon esithandweni.
2. Ngemva kokuba isithando somlilo sokugcina se-75 Ferrosilicon sesiqediwe, amafayili ensimbi (ngokuvamile amabhlogo ensimbi alahliwe) ayengezwa. Inani elingeziwe livame ukulingana noma libe ngaphezudlwana kwenani lensimbi elikhiqizwa esithandweni ngasinye sokuncibilikiswa okujwayelekile kwe-75 Ferrosilicon (kudingeka kucatshangelwe Kuye ngezici ezifana nezinga lokungena ngaphansi kwesithando somlilo noma inani lensimbi encibilikisiwe enqwabelene esithandweni) , i-ferrosilicon engu-45 izokhishwa ngemva kwehora elingu-1 kuya ku-1.5. Ngokusho kokuhlaziywa kwesampula yensimbi phambi kwesithando somlilo, uma i-silicon iphakeme, inani elifanele lezinsalela zensimbi lingangezwa ku-ladle yensimbi encibilikisiwe; uma i-silicon iphansi, inani elifanele le-75 ferrosilicon lingengezwa (inani elingeziwe liyi-ferrosilicon engama-45 ngethani. Ukuze kwandiswe i-silicon ngo-1%, i-silicon engu-75 kufanele yengezwe Kubalwa ngokusekelwe kumakhilogremu angu-12 kuya kwangu-14 ensimbi).
3. Ngemva kokwengeza izinsalela zensimbi, ungakwazi ukwengeza amashaji e-ferrosilicon angu-45.
Isibonelo: kukhona amakhilogremu angu-3000 e-ferrosilicon ku-ladle yensimbi encibilikisiwe, futhi okuqukethwe kwe-Si okuhlaziywe ngaphambi kwesithando somlilo kungu-50%, khona-ke inani lensimbi yensimbi okufanele yengezwe ku-ladle yensimbi encibilikisiwe:
3000×(50/45-1)÷0.95=350kg