Dissertation > Excellent graduate degree dissertation topics show

Simulation of Huge Rectangular Ingot by Different Intensive Cooling

Author: ZhaoLei
Tutor: LiShengLi
School: Liaoning University of Science and Technology
Course: Materials Processing Engineering
Keywords: huge rectangular ingot simulation solidification Intensive cooling "gradient" cooling
CLC: TG244.3
Type: Master's thesis
Year: 2012
Downloads: 17
Quote: 0
Read: Download Dissertation


In this paper, a special method of intensive cooling outside mold has been presented to produce huge rectangular ingot. The solidification and heat transfer of a 60t huge rectangular ingot has been simulated by mathematical simulation and physical simulation experiment combination of methods in this paper.Firstly,In a physical model designed by using similitude theory, the steel solidification progress were simulated by using Na2S203.5H20, and the growth of crystal structure, the final solidification location were observed. Physical simulation result verify the feasibility of strong cold process.Secondly, establishing the three-dimensional entity mold by pro/e software and ingot solidification heat-transfer mathematic model, and it has been the simulation calculation by ProCAST software. Through the solidification time, the temperature distribution, heat flux distribution and the position of loose and shrinkage show the feasibility of strong cold process.The results of the study show that the solidification times of ingot body was shortened by increasing the cooling intensity and the position of loose and shrinkage of ingot was higher by increasing the cooling intensity. Compared with air cooling, the solidification time of wind cooling shorten the 3.5 h, the shrinkage of the position higher but do not reduce the volume; Because of the heat transfer ingot mold restrictions, compared with wind cooling, the effect of water cooling is not obvious. So this paper hold out "gradient" cooling .It is that the upper of ingot mold is air cooling and the bottom of ingot mold is wind cooling .Compared with air cooling, at the "gradient" cooling the solidification times of ingot body reduces 2.7 h, the position of loose and shrinkage of ingot rise 60 cm and shrinkage cavity volume reduces 8000 cm3.Mathematical simulation and physical simulation experiment results tell us that by intensive cooling, the solidification time of the can be obviously shortened, internal soundness can be ensured and the surface quality could be improved.

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Study of Interaction between Epoxy Molecules and Carbon Fiber Surface with Molecular Simulation,TB332
  3. Research on Mechanism Analysis and Modeling Simulation of Horizontal Well Tractor,P631.83
  4. Coupled Calculation of the Solidification Paths of Ternary Eutectic Alloys Based on Thermo-Calc,TG111.4
  5. Study on Springback of High-Strength Steel Stamping,TG386
  6. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  7. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  8. The Brake Performance of Hydraulic Retarder and Simualtion Research on Its Application for Aircraft Arrestment,TH137.331
  9. Satellite Attitude Determination Based on Gyro and Star Sensor,V448.2
  10. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  11. Research on Orbital Control Method for Space Rendezvous and Docking,V526
  12. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  13. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  14. Single Neuron PID Control for Electro-Hydraulic Servo Unit of Ship Rudder,U666.152
  15. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  16. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  17. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  18. Numerical Simulation of Biomass Direct Reburning,TK16
  19. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  20. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  21. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173

CLC: > Industrial Technology > Metallurgy and Metal Craft > Casting > Casting process > Casting and solidification > Solidification , cooling
© 2012 www.DissertationTopic.Net  Mobile