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包头钢铁(集团)公司炼钢厂,包头,014010
[ "赵保国(1972-),男,工程师。1995年内蒙古工业大学毕业,从事连铸工艺、质量控制工作。" ]
收稿:2005-10-24,
网络首发:2023-03-02,
纸质出版:2006-03-02
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赵保国, 兰岳光, 王天瑶. 90 t钢包喂丝的工艺实践[J]. 特殊钢, 2006,27(2):54-55.
赵保国, 兰岳光, 王天瑶. Process Practice of a 90 t Ladle Wire Feeding[J]. Special Steel, 2006, 27(2): 54-55.
赵保国, 兰岳光, 王天瑶. 90 t钢包喂丝的工艺实践[J]. 特殊钢, 2006,27(2):54-55. DOI:
赵保国, 兰岳光, 王天瑶. Process Practice of a 90 t Ladle Wire Feeding[J]. Special Steel, 2006, 27(2): 54-55. DOI:
总结了以LD-LF(WF)-CC生产流程生产20、34Mn6、BTN/1等钢时
在90 t钢包中以2.4~3.0m/min的喂丝速度喂硅钙线(Φ13 mm)和铝线的工艺实践。工艺实践表明
当喂入钙量达200×10
-6
时
钢中残余钙含量至最大值35×10
钙处理时钢水平均脱氧率为25%
钢中夹杂物数量明显减少并使钢中夹杂物变性;当钢包喂铝线时
随喂丝速度由1.5 m/s提高至3.0 m/s时
铝的回收率由25%提高至70%。一般铝的收得率为60%~70%
CaSi的收得率为15%~20%。
The process practice of silicon-calcium wire(φ13 mm)feeding and aluminum wire feeding with feeding speed 2.4~3.0 m/min in a 90 t ladle for stcel 20
34Mn6 and steel BTN/1 produced by LD-LF(WF)-CC flow sheet has been summarized. The practice showed that as calcium feeding amount was up to 200×10
the residual calcium content in steel was up to maximum value -35×10
with calcium treatment the molten steel average deoxidizing ratio was 25%
the inclusion amount in steel decreased and inclusion morphology modifed obviously; and as feeding aluminium wire
with feeding wire speed increased from 1.5 m/s to 3.0 m/s
the aluminium yield increased from 25% to 70%.The yield of aluminium normally was 60%~70% and the yield of CaSi was 15%~20%.
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