Digital Simulation and Intelligent Design of Hot Rolling Process

Chapter 1 Introduction
1.1 Technological development of material R&D
1.1.1 Materials genome engineering
1.1.2 Material computation and simulation
1.1.3 Materials information technology
1.1.4 Material database
1.2 Digital R&D of steel
1.2.1 Performance quality of steel
1.2.2 Digital R&D method of steel
References
Chapter 2 Introduction to Hot Rolling Process
2.1 Production of hot-rolled strip steel
2.1.1 Conventional strip hot rolling process flow
2.1.2 Thin slab casting and rolling process flow
2.2 Steel plate production
2.2.1 Typical process flow
2.2.2 Critical procedure of structure and performance control
2.3 Production of hot-rolled long steel products
2.3.1 Hot-rolled bar production process and equipment configuration
2.3.2 Wire production process and equipment configuration
2.3.3 H-section steel production process and equipment configuration
References
Chapter 3 Digital Simulation of Heating Process
3.1 Production process of heating furnace for steel rolling
3.2 Temperature field simulation of steel slab heating
3.2.1 Assumed conditions for modeling
3.2.2 Basic equation of heat conduction
3.2.3 Treatment of boundary conditions
3.2.4 Thermophysical parameters of steel slabs
3.2.5 Simulation software development
3.2.6 Verification of discharge temperature simulation results
3.2.7 Optimization of heating process simulation
3.3 Furnace atmosphere simulation
3.3.1 Determination of coal gas composition
3.3.2 Conversion of calorific value of coal gas
3.3.3 Determination of air consumption and air-fuel ratio
3.3.4 Flue gas composition simulation and computation
3.3.5 Application of furnace atmosphere simulation
3.4 Decarbonization behavior simulation of steel slab
3.4.1 Steel surface decarbonization mechanism
3.4.2 Mathematical model for computation of carbon diffusion
3.4.3 Fundamental assumptions
3.4.4 Material model
3.4.5 Simulation result verification and analysis
References
Chapter 4 Digital Simulation of Rolling Process
4.1 Analysis method for metal deformation during the hot rolling
4.1.1 Plane deformation theory
4.1.2 Slip line method
4.1.3 Energy method
4.1.4 Finite element method
4.2 Finite element simulation of hot rolling process of steel plates
4.2.1 Creation of finite element model
4.2.2 Determination of boundary condition
4.2.3 Material properties
4.2.4 Redivision of grid
4.2.5 Rolled piece temperature and head and end shape simulation results
4.3 Analysis of influence of chamfer of continuously cast slab on rolling spread
4.3.1 Finite element computation model of slab deformation duringthe rough rolling
4.3.2 Analysis of influence of chamfer shape on rolling spread
4.3.3 Influence of slab chamfer on dog bone spread
4.3.4 Influence of slab chamfer on natural spread
4.4 Finite element simulation of bar and wire rolling process
4.4.1 Basic assumptions
4.4.2 Establishment of finite element model
4.4.3 Simulation result analysis
References
Chapter 5 Digital Simulation of Cooling Process
5.1 Post-rolling cooling temperature simulation of strip
5.1.1 Principle of laminar cooling
5.1.2 Heat transfer computation model of laminar cooling
5.1.3 Phase transformation computation model of laminar cooling
5.1.4 Example of computation of temperature field during laminar cooling
5.2 Post-rolling water cooling temperature simulation of bars and wires
5.2.1 Water cooling process and equipment of bars and wires
5.2.2 Heat transfer computation model of water cooling of bars and wires
5.2.3 Finite difference solution
5.2.4 Case of temperature field simulation of bars and wires during through-water cooling
5.3 Stelmor air cooling sim