1. Tunda raguwarbakin karfe bututu simintin gyare-gyare ya zarce raguwar simintin simintin, don hana raguwa da lahani na simintin gyare-gyare, yawancin matakan da ake amfani da su a cikin aikin simintin gyare-gyaren su ne masu tasowa, baƙin ƙarfe mai sanyi da tallafi don samun ci gaba da ƙarfafawa.

2. Don hana shrinkage, shrinkage, porosity da fashe lahani na bakin karfe bututu, bango kauri ya zama uniform, kauce wa kaifi da dama-kwangulu Tsarin, ƙara itace guntu zuwa gyare-gyaren yashi, ƙara coke zuwa core. kuma a yi amfani da dutsen yashi mai zurfi da mai don haɓaka rangwame da ƙarfin numfashi na yashi ko cibiya.

3. Saboda ƙarancin ƙarancin ƙarfe na narke, don hana rabuwar sanyi da rashin isasshen simintin, kaurin bangon simintin kada ya zama ƙasa da 8mm;busassun simintin gyare-gyare ko zafafan simintin ya kamata su ƙara yawan zafin jiki da kyau, gabaɗaya 1520 ~ 1600℃.Saboda yawan zafin jiki na simintin gyare-gyaren yana da girma, ƙimar babban zafi yana da girma, lokacin riƙe ruwa yana da tsawo, kuma ana iya inganta yawan ruwa.Duk da haka, idan yanayin zafi ya yi yawa, zai haifar da lahani kamar ƙananan hatsi, fashewar zafi, pores da yashi mai mannewa.