A cikin zamani masana'antu ka'idar ductile baƙin ƙarfe manhole murfi, za mu iya ƙirƙira ductile baƙin ƙarfe ta hanyar simintin karfe da ƙirƙira karfe, wanda aka yadu amfani a cikin inji masana'antu masana'antu a yau.A gaskiya ma, ka'idar ductile baƙin ƙarfe shine samun graphite mai siffar siffar ball ta hanyar tsarin spheroidization, wanda ya inganta aikin ƙarfe na simintin gyare-gyare, musamman ma filastik da taurinsa, yana haifar da inganci fiye da carbo ...
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