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在实验室条件下,较广泛地研究了铋在稀土镁球铁中的孕育作用。试验结果及检测分析表明:微量铋加入铁水中后,使高温铁水中存在的碳、硅元素的浓度起伏有加强的趋势,并且有促进石墨均质和异质核心形成的倾向。
Under laboratory conditions, the inoculation of bismuth in rare earth magnesium nodules has been studied extensively. The results of the tests and the analysis of the test results show that the micro-bismuth tends to increase the concentrations of carbon and silicon in the hot metal and promote the formation of homogeneous graphite and heterogeneous nuclei.