Production Practice for Low Carbon Steel QD08 Steelmaking by Natural Decarburization during 120 t RH Refining Process
特殊钢2018年39卷第3期 页码:13-16
作者机构:
芜湖新兴铸管有限责任公司炼钢部,芜湖,241000
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DOI:
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收稿:2017-12-05,
网络首发:2022-06-02,
纸质出版:2018-06-02
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李海, 刘列喜, 张洪彪, 等. 120 t RH自然脱碳精炼低碳钢QD08的生产实践[J]. 特殊钢, 2018,39(3):13-16.
李海, 刘列喜, 张洪彪, et al. Production Practice for Low Carbon Steel QD08 Steelmaking by Natural Decarburization during 120 t RH Refining Process[J]. Special Steel, 2018, 39(3): 13-16.
李海, 刘列喜, 张洪彪, 等. 120 t RH自然脱碳精炼低碳钢QD08的生产实践[J]. 特殊钢, 2018,39(3):13-16.DOI:
李海, 刘列喜, 张洪彪, et al. Production Practice for Low Carbon Steel QD08 Steelmaking by Natural Decarburization during 120 t RH Refining Process[J]. Special Steel, 2018, 39(3): 13-16.DOI:
Based on the production data the analysis on thermodynamics
kinetics of RH carbon-oxygen reaction and natural decarburization in 120 t RH refining process of low carbon steel QD08 (/% : W0. 07C
0. 15 〜0. 35Si
0. 25 〜 0. 45 Mn
W0. 035P
W0. 035 S) has been carried out to get the optimized process for RH refining natural decarburization. The results show that with BOF end temperature ≥l650 °C
RH initial temperature of liquid ≥1600 °C
BOF end [C] 0.04% ~0.10%
end [P] ≤ 0.018%
before BOF tapping adding top slag lime 200 kg and during tapping non-adding alloy and deoxidation agent