Results 241 to 250 of about 3,203 (290)

Study on Desulfurization Kinetics Model of LF Refining

Advanced Materials Research, 2013
The desulphurization kinetics in ladle refining was analyzed, and the restrictive link for the desulfurization was selected based on previous research. Then the kinetics of desulfurization model in LF refining was developed and the empirical formula of sulfur ratio was summarized.
Yu Yue, Bo Zhang, Zheng Liang Xue
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Studies on Refining Effect and Process Optimization about LF

Advanced Materials Research, 2014
The refining process was investigated, it is the refining process about 100t LF refining furnace of an iron and steel group company, the refining effect was researched and systematic analyzed, by Through systematic sampling and detection to composition, slag, gas and inclusion of different refining period on LF furnace, the measures of process ...
Si Long Cheng, Xin Xia Qi, Qi Jia
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Thermodynamics and Dynamics of Nitrogen Increasing in LF Refining Process

Advanced Materials Research, 2012
Nitrogen is one of harmful elements in liquid steel. Reducing nitrogen quantity is required for making high-grade steel. This paper analyzes the reaction mechanism of nitrogen increasing through the methods of metallurgical thermodynamics and dynamics. In liquid steel dissolved nitrogen and nitrides are the main forms of nitrogen.
Zheng De Ren, Sheng Qin Zhang, Zhu Bing Gao, Qian Ying Zhang   +3 more
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Research Status of Numerical Simulation on LF Furnace Refining Ladle

Applied Mechanics and Materials, 2014
The research status of numerical simulation on LF furnace refining ladle is introduced in this paper.Since 1970, the research on the gas-liquid two-phase region has begun.Szekely began to be simulated by mathematical model and physical experiment method of flow phenomena in ladle in early 1975.
Xiao Lei Zhou, Zhe Shi, Gui Fang Zhang, Zhong Ning Du   +3 more
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Research Status of Physical Simulation on LF Furnace Refining Ladle

Applied Mechanics and Materials, 2014
The research status of physical simulation on LF furnace refining ladle is introduced in this paper.Since 1970, the research on the gas-liquid two-phase region has begun. The ladle of blowing argon can be roughly divided into three important flow region has been introduced. Two-phase region, the top horizontal flow zone and recirculation zone exists in
Xiao Lei Zhou, Zhe Shi, Gui Fang Zhang, Zhong Ning Du   +3 more
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Application of Alumina-Magnesia Precast Blocks for LF Refining Ladle

Materials Science Forum, 2013
The alumina-magnesia precast blocks developed in authors company have been successfully used in 90-ton LF refining with an average service life 80-85 heats to meet the smelting demand of low carbon steel and ultra low carbon steel. The observation of the residual blocks revealed that the section of the used blocks was divided into four layers from ...
Hai Xia Feng, Jun Liu, Yi Wei
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Application of the sulphide capacity theory on refining slags during LF treatment

Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material, 2006
Sulphur has been reduced from 0.02wt% to 0.002wt% in 38 min average during 200 t ladle treatment in 2(superscript #) steel plant of Capital Steel. The sulphide capacity and equilibrium sulphur distribution of slags are calculated and compared with the measured values.
Ning Hao, Hong Li, Haitao Wang, Xinhua Wang, Wanjun Wang   +4 more
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Evolution of Inclusions in Si-Mn-Killed Steel During Ladle Furnace (LF) Refining Process

Metallurgical and Materials Transactions B, 2021
To further clarify the evolution of inclusions in Si-Mn-killed steel grades, industrial samples were taken during the LF (ladle furnace) refining process, and laboratory experiments were carried out to investigate the effects of alloy additions, refining slags, and refractory materials on the evolution of inclusions.
Zonghui Liu, Guodong Song, Zhiyin Deng, Miaoyong Zhu   +3 more
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Study on Adjustment and Optimization of LF Refining Slag of Spring Steel 55SiCrA

2017
The spring steel 55SiCrA produced in a domestic steel factory is deoxidized by Si with “100 t EAF-LF-VD-CC”. The fluoric content (CaF2 = 17.41–22.15%) and the binary basicity (R = 1.9–3.0) of applied LF refining slag are high. To avoid environmental pollution caused by fluorine, meanwhile guarantee the speed of melting slag and smelting effect on ...
Chao Gu, Yan-ping Bao, Lu Lin, Min Wang, Li-hua Zhao, Zi-xuan Wu   +5 more
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Influence mechanism of silicon content in Al-killed steel on compositions of inclusions during LF refining

Ironmaking & Steelmaking, 2020
To obtain solid inclusions in LF refining process, the influence of silicon content in steel on compositions of inclusions during LF refining were investigated in Al-killed steel.
Jianfei Xu, Kunpeng Wang, Ying Wang, Zhidong Qu, Xingkuang Tu, Xiaoling Meng   +5 more
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