Ladle bottom-blowing is one of the most important ways to remove inclusions in molten steel during making process. Many works have been reported optimize bottom blowing parameters by numerical simulations. However, it a challenge capture collision between and bubbles discrete time step, which may lead underestimation inclusion removal rate. In this work, program based on user-define-function (U...

A 1-D, transient mathematical model (MIX1D) has been developed to simulate the final composition distributions produced within continuous-cast slabs and blooms during an arbitrary grade transition. This work applies the model to investigate the effect of process variables on the extent of intermixing during a typical ladle change operation, where mixing occurs in both the tundish and the liquid...

A complete three-dimensional model (RCSB001169; PDB code 1qqz ) for the Vibrio cholerae toxin coregulated pilus protein (TcpA), including residues 1-197, is presented. We have used the crystal structure of the Neisseria gonorrhoeae pilin (PilE), available biochemical data about TcpA, variations in the primary sequences of TcpA among various Vibrio cholerae strains and secondary structure predic...

In the present chapter, a computational fluid dynamics (CFD) model for multiphase flow was developed, allowing the simulation of two different processes, the desulfurization of hot metal in a ladle mechanically agitated by an impeller (KR process) and the desulfuri‐ zation of steel in a gas-agitated ladle. The model gives important information to charac‐ terize the fluid flow conditions, to def...

In this study, we proposed an advanced control system for tilting-ladle-type automatic pouring machines in the casting industry. Automatic have been introduced recently to improve working environment of process. conventional study on control, it has confirmed that flow rate contributes improving accuracy entire machine, such as outflow liquid’s falling position from ladle, weight filled mold, a...

Abstract: Thermodynamic computational packages MTDATA and FactSage have been used to carry out calculations on the variation with temperature of the phases precipitated on cooling in both oxidising and reducing conditions of a typical ladle slag composition, in the temperature range 1700 - 900°C. The current coverage of the databases associated with the computational packages is discussed i...

In a steel-refining ladle, the properties of manufactured steel can be notably degraded due to presence excessive inclusions. Stirring via gas injection through porous plug is often used as part process reduce these this paper, 3D computational fluid dynamics (CFD) modeling analyze transient multiphase flow and inclusion removal in gas-stirred ladle. The effects stirring with bubble-inclusion i...