杜珊, 闫绍维, 王硕明, et al. An Analysis on Micro-Inclusion in Bearing Steel at Each Procedure of BOF-LF-VD-CC Flow Sheet[J]. Special Steel, 2007, 28(5): 16-18.
杜珊, 闫绍维, 王硕明, et al. An Analysis on Micro-Inclusion in Bearing Steel at Each Procedure of BOF-LF-VD-CC Flow Sheet[J]. Special Steel, 2007, 28(5): 16-18.DOI:
amount and transformation of microinclusion in bearing steel at each procedure of 45t BOF-LF-VD-CC flow sheet at Shijiazhuang Steel have been studied by added tracer elements.Results showed that inclusions in steel before LF refining were gradually transformed from blocky Al
2
O
3
chromic-silicate and chromic-manganate to calcium chromate
globular chromic-silicate and banding chromic-manganate inclusions in cast billet; and the average number of micro-inclusions in steel decreased from 8.74/mm² before LF to 2.72/mm² in billet while the size of inclusions also decreased.