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| Influence factors and control of titanium content
during tire cord steel production |
| Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan， Hubei 430081， Chi |
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Abstract In order to effectively control the detrimental effect of Ti inclusion on drawing processing performance of steel wire rod, the equilibrium of \[Ti\]\[Si\] in hot metal, titanium removal in converter and titanium pickup during refining process were investigated by thermodynamic theoretical calculation and actual production data. The corresponding control measures of Ti content were proposed. The analysis results show that the Ti content in hot metal has good linear relationship with that of Si. It is of great significance to reduce the Ti content in BF hot metal when the Si content is controlled at low level. The Ti content at BOF endpoint is affected by C content and temperature, especially by temperature. In order to decrease the Ti content at BOF endpoint, C content and temperature must be well controlled. Under the strict control of converter slag amount and Ti content in refining slag material, the amount of titanium pickup during refining process can be reduced substantially.
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2015, Vol. 36 
