Composition design and physical properties prediction of mold flux for continuous casting of high Mn–HIGH Al steel
oleh: J. Y. Hu, X. W. Liao, L. H. Feng, W. Kang, Y. Liu
| Format: | Article |
|---|---|
| Diterbitkan: | Croatian Metallurgical Society 2022-01-01 |
Deskripsi
The deterioration of CaO-SiO<sub>2</sub> based mold flux caused by the reaction of steel -slag interface is a bottleneck restricting the high Mn-Al steel continuous casting production efficiently. Therefore, the development of low-reactivity mold flux has become a research hotspot. In this paper, the scheme of high Al<sub>2</sub>O<sub>3</sub> and low SiO<sub>2</sub> was adopted to suppress or reduce the occurrence of steel-slag reaction. Drawing binary phase diagram of mold flux based on the CaO–Al<sub>2</sub>O<sub>3</sub> composition, the influence of different solvents on the melting characteristics of the mold flux were investigated and the reasonable mass ratio of CaO/Al<sub>2</sub>O<sub>3</sub>and the content of SiO<sub>2</sub>, SrO, MgO, Na<sub>2</sub>O and B<sub>2</sub>O<sub>3</sub> were determined. According to the viscosity and the melting temperature model calculation, the physical property is beneficial for the composition design of low-reactivity mold flux.