某厂冲天炉配料:生铁55%,废钢20%,回炉料25%,75硅铁是金属料重的0.8%,熔炼出的铁水成分:C://3.80%,Si:1.44%,计算此炉熔炼时的渗碳率和硅的烧损率?(炉料成分:生铁C://4.0%,Si:1.0%,废钢C://0.2%,Si0.4%,回炉料C://3.5%,Si:2.6%)
正确答案:
(1)炉料总碳成分=4.0%×55%+0.2%×20%+3.5%×25%=3.115%
渗碳率=(3.80%-3.115%)÷3.115%=22.25%
(2)炉料总硅成分=1.0%×55%+0.4%×20%+2.6%×25%=1.92%
硅烧损率=(1.92%-1.44%)÷1.92%=25%
渗碳率=(3.80%-3.115%)÷3.115%=22.25%
(2)炉料总硅成分=1.0%×55%+0.4%×20%+2.6%×25%=1.92%
硅烧损率=(1.92%-1.44%)÷1.92%=25%
答案解析:有
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