scholarly journals Titanium Distribution Ratio Model of Ladle Furnace Slags for Tire Cord Steel Production Based on the Ion–Molecule Coexistence Theory at 1853 K

Processes ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. 788
Author(s):  
Jialiu Lei ◽  
Dongnan Zhao ◽  
Wei Feng ◽  
Zhengliang Xue
Keyword(s):  
Distribution Ratio ◽  
Steel Production ◽  
High Strength ◽  
Titanium Content ◽  
Ladle Furnace ◽  
Tire Cord ◽  
Coexistence Theory ◽  
Calculation Results ◽  
Tire Cord Steel ◽  
Lf Refining

High-strength tire cord steel is mainly used in radial ply tires, but the presence of brittle Ti inclusions can cause failure of the wires and jeopardize their performance in production. In order to control the titanium content during steel production, a thermodynamic model for predicting the titanium distribution ratio between CaO–SiO2–Al2O3–MgO–FeO–MnO–TiO2 slags during the ladle furnace (LF) refining process at 1853 K has been established based on the ion–molecule coexistence theory (IMCT), combined with industrial measurements, and the effect of basicity on the titanium distribution ratio was discussed. The results showed that the titanium distribution ratio predicted by the developed IMCT exhibited a dependable agreement with the measurements, and the optical basicity is suggested to reflect the correlation between basicity and the titanium distribution ratio. Furthermore, quantitative titanium distribution ratios of TiO2, CaO·TiO2, MgO·TiO2, FeO·TiO2, and MnO·TiO2 were acquired by the IMCT model, respectively. Calculation results revealed that the structural unit CaO plays a pivotal role in the slags in the de-titanium process.

The [Ti] Content Control of the Tire Cord Steel 82A

2013 ◽  
Vol 785-786 ◽  
pp. 3-7
Author(s):  
Peng Fei Zhang ◽  
Zheng Liang Xue ◽  
Feng Zou ◽  
Rui Xiong ◽  
Ting Ting Zhu ◽  
...  
Keyword(s):  
Production Process ◽  
Converter Slag ◽  
Titanium Content ◽  
Quality Level ◽  
Tire Cord ◽  
Related Theory ◽  
End Products ◽  
Tire Cord Steel ◽  
Ti Content

Based on the characteristics of the production process and quality level of the cord steel 82A, this paper focus on the analysis of the converter terminal temperature, terminal oxidability and the converter slag on the influence of the content of titanium in steel, which combined the oxidation removing related theory of titanium element in steel, and puts forward effective measures of ultralow titanium content controlling in steel, and obvious effects have been obtained in the production: the average [Ti] content is 4.9ppm in the end products, in which the proportion of less than 5ppm is above 90%.

Genesis Analysis of Large TiN Inclusion for High Strength Tire Cord Steel

2019 ◽  
Vol 298 ◽  
pp. 24-31
Author(s):  
Jia Liu Lei ◽  
Dong Nan Zhao ◽  
Hang Yu Zhu
Keyword(s):  
Induction Furnace ◽  
Solidification Process ◽  
High Strength ◽  
Dissolution Kinetic ◽  
Vacuum Induction Furnace ◽  
Tire Cord ◽  
Wire Rod ◽  
Tire Cord Steel ◽  
The Wire ◽  
Continuous Casting Mould

In order to analyze the possible source of large TiN inclusion for the high strength tire cord steel. The remelting experiment was conducted via vacuum induction furnace in the laboratory and the artificially prepared TiN particles which of size 50-74 μm and 100-180 μm were added during the remelting process. Simultaneously, combined with the dissolution kinetic model of TiN particle to make a brief analysis for the genesis of lagre TiN inclusion detected in the wire rod. The results show that the TiN particle which of size 180 μm dissolved in the liquid steel completely at only a few seconds. The TiN inclusions detected in the remelted specimens are all of regular shape, which mainly formed during the solidification process, rather than the added TiN particle which are not completely dissolved. It is supposed that the large TiN inclusion detected in the wire rod most likely spring from the continuous casting mould fluxes.

Effect of slag basicity adjusting on inclusions in tire cord steels during ladle furnace refining process

2017 ◽  
Vol 114 (6) ◽  
pp. 602 ◽  
Author(s):  
Changbo Guo ◽  
Haitao Ling ◽  
Lifeng Zhang ◽  
Wen Yang ◽  
Ying Ren ◽  
...  
Keyword(s):  
Refining Process ◽  
Slag Basicity ◽  
Ladle Furnace ◽  
Tire Cord

Top slag refining for inclusion composition transform control in tire cord steel

2012 ◽  
Vol 19 (6) ◽  
pp. 490-498 ◽  
Author(s):  
Shu-hao Chen ◽  
Min Jiang ◽  
Xiao-fei He ◽  
Xin-hua Wang
Keyword(s):  
Tire Cord ◽  
Inclusion Composition ◽  
Slag Refining ◽  
Tire Cord Steel ◽  
Top Slag

Effect of Fe Content on Hot Tearing of High-Strength Al-Mg-Si Alloy

2007 ◽  
Vol 539-543 ◽  
pp. 380-385 ◽  
Author(s):  
Hiromi Nagaum ◽  
Satoru Suzuki ◽  
T. Okane ◽  
T. Umeda
Keyword(s):  
Crack Initiation ◽  
Electromagnetic Induction ◽  
High Strength ◽  
Solidification Path ◽  
Hot Tearing ◽  
Temperature Range ◽  
Fe Content ◽  
Calculation Results ◽  
Electromagnetic Induction Heating ◽  
Calculation Software

The effect of Fe content on hot tearing of the high-strength Al-Mg-Si alloy was systematically investigated. In this study, a thermodynamic calculation software Thermo-Calc was used to calculate the solidification path under the non-equilibrium condition, and the mechanical properties of this alloy have also been investigated during solidification using an electromagnetic induction heating tensile machine. In order to confirm the calculation results of solidification path, a quenching test also was carried out. By using the Thermo-Calc, the sequence of crystallization, crystallization temperature of formed phases and their crystallized amount were systematically investigated for each alloy in which Fe content was changed. Furthermore, by comparing the fracture surfaces of the tensile testing sample and DC billet, the temperature range of crack initiation of the alloy was examined. Comparing the temperature range of crack initiation with the crystallization phase and its crystallization order, Fe content of high-strength Al-Mg-Si alloy influenced hot tearing significantly owing to the crystallization behavior of α(AlFeMn).

scholarly journals Thermodynamic analysis of precipitation behavior of Ti-bearing inclusions in SWRH 92A tire cord steel

2019 ◽  
Vol 14 ◽  
pp. 102428 ◽  
Author(s):  
Lu Wang ◽  
Zheng-Liang Xue ◽  
Hang-Yu Zhu ◽  
Jia-Liu Lei
Keyword(s):  
Thermodynamic Analysis ◽  
Tire Cord ◽  
Precipitation Behavior ◽  
Tire Cord Steel
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