Numerical Simulation of the Melting Behavior of Steel Scrap in Hot Metal
Abstract
:1. Introduction
2. Model Description
2.1. Assumptions
2.2. Continuity Equations
2.3. Energy Equation
2.4. Momentum Equations
3. Experiment and Mathematical Modeling
3.1. Experiment
3.2. Mathematical Modeling
4. Results and Discussion
4.1. The Experimental Results and Discussions
4.2. The Mathematical Results and Discussions
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Material | C | Si | Mn | P | S |
---|---|---|---|---|---|
Hot metal | 4.01 | 4.3 | 0.3 | 0.014 | 0.018 |
Scrap bar | 0.1 | 0.2 | 0.02 | 0.016 | 0.02 |
Property | Quantity | Units |
---|---|---|
Temperature the hot metal | 1350, 1400 | °C |
Temperature the scrap | 25 | °C |
Melting time | 30, 60, 90, 120, 150, 180, 210 | s |
Diameter of the scrap | 9 | mm |
Property | Quantity | Units |
---|---|---|
Melting point of pure iron | 1805.1 | K |
Viscosity | 0.0062 | Pa·s |
Equilibrium partition coefficient | 0.36 | - |
Specific heat | 500 | J/(kg·K) |
Thermal conductivity | 34 | W/(m·K) |
Latent heat | 2.71 × 105 | J/kg |
Thermal expansion coefficient | 1.07 × 10−4 | K−1 |
Solutal expansion coefficient | 1.4 × 10−2 | Wt.%−1 |
Diffusion coefficient in liquid | 2.0 × 10−8 | m2/s |
Diffusion coefficient in solid | 1.0 × 10−9 | m2/s |
Property | Quantity | Units |
---|---|---|
Initial temperature the hot metal | 1350, 1400, 1450 | °C |
Initial temperature the scrap | 25 | °C |
Initial carbon content of the hot metal | 4.0 | wt.% |
Initial carbon content of the scrap | 0.1 | wt.% |
Initial diameter of the scrap | 9 | mm |
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Deng, N.; Zhou, X.; Zhou, M.; Peng, S. Numerical Simulation of the Melting Behavior of Steel Scrap in Hot Metal. Metals 2020, 10, 678. https://doi.org/10.3390/met10050678
Deng N, Zhou X, Zhou M, Peng S. Numerical Simulation of the Melting Behavior of Steel Scrap in Hot Metal. Metals. 2020; 10(5):678. https://doi.org/10.3390/met10050678
Chicago/Turabian StyleDeng, Nanyang, Xiaobin Zhou, Moer Zhou, and Shiheng Peng. 2020. "Numerical Simulation of the Melting Behavior of Steel Scrap in Hot Metal" Metals 10, no. 5: 678. https://doi.org/10.3390/met10050678