Commercial Pilot Production of Threading Steel HRB400E 100t LF Refining by Using Low Titanium Blast Furnace Slag
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Commercial Pilot Production of Threading Steel HRB400E 100t LF Refining by Using Low Titanium Blast Furnace Slag
Special SteelVol. 39, Issue 1, Pages: 28-33(2018)
作者机构:
1. 北京科技大学冶金与生态工程学院,北京,100083
2. 河钢股份有限公司承德分公司,承德,067102
3. 河钢集团钢研总院,石家庄,050023
作者简介:
基金信息:
DOI:
CLC:
Received:17 August 2017,
Online First:30 June 2022,
Published:30 June 2018
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王宝华, 宫永煜, 张明博, et al. Commercial Pilot Production of Threading Steel HRB400E 100t LF Refining by Using Low Titanium Blast Furnace Slag[J]. Special Steel, 2018, 39(1): 28-33.
DOI:
王宝华, 宫永煜, 张明博, et al. Commercial Pilot Production of Threading Steel HRB400E 100t LF Refining by Using Low Titanium Blast Furnace Slag[J]. Special Steel, 2018, 39(1): 28-33.DOI:
Commercial Pilot Production of Threading Steel HRB400E 100t LF Refining by Using Low Titanium Blast Furnace Slag
With desulphurizing treatment on low titanium blast furnace slag by blowing CO
2
method
the rate of removing sulfur from low titanium blast furnace slag is 66.59% ~78.01 % and the residual sulfur content in blast furnace slag is 0.137% ~0.283%
therefore the sulfur content in prepared low sulfur and low titanium blast furnace basically meets the requirements of LF refining slag for steel HRB400E. By using low sulfur and low titanium blast furnace slag the ingredient of end slag of LF refining is /% : 37.40 ~46.50 CaO
12.30 ~15.10
MgO
21.70〜26.70 SiO
2
5.74~17.00 Ag
2.44~3.39 TiO
2
0.36~1.42 MnO
0.75~1.62 Fe
2
O
3
and 0.200〜0.597 S
the desulphurized rate of liquid is 10.0% ~41.5%
and the end [S
]
of steel HRB400E is 0.008% ~0.029%
it is about equal to the effect of desulphurization by using present process refining slag-ladle slag and drained hot slag ( LF refining end slag ingredient /% : 34.30 〜42.90 CaO
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A Study on Thermodynamics of Dephosphorization and Rephosphorization of Ultra-Low Oxygen Spring Steel
Control of T[O] and Inclusion in Casing Pipe Steel for Petroleum during LF Refining
Effect of Converter-LF Refining and Hot Metal Pretreatment Converter-Ladle Argon Stirring Process on Metallurgical Quality of Weathering- Resisting Steel
Process Practice on Control of Nitrogen Pick-up in Molten Steel during 150 t Ladle Furnace (LF) Refining Process