Dissertation > Excellent graduate degree dissertation topics show

Study on the Mathematical Model of Solidification Thermal Transmission in the Process of Continuous Casting Slab with Speed Changing

Author: LiZuoRan
Tutor: WangZuo；ZhaoLianGang
School: Liaoning University of Science and Technology
Course: Applied Computer Technology
Keywords: Slab continuous casting Secondary cooling water distribution Casting blank tracking Control software
CLC: TF777.1
Type: Master's thesis
Year: 2008
Downloads: 171
Quote: 0
Read: Download Dissertation

Abstract


The second cooling control is an all-important process in the continuous slab casting techniques. The time-variability of drawing speed causes the decline of temperature field stability in the solidification and heat-transfer process, which will affect the quality of casting directly. At the same time ,it increases the difficulty of auto-control implement. So, how to find the effective equilibrium point to guarantee the slab quality becomes the urgent problem.For the time-varying problem of drawing speed in the continuous slab casting, A program, which would dynamically control the casting processes at real time, has been developed in the present paper. First, after analyzing the static control method in the process of the second cooling, the results of dynamic control have been compared with it and then the two aspects have been combined. Thereby the casting processes possess both the stable and practical results. Second, the methods of tracking and locating at real time and incising the time slice averagely have been employed. Third, combining the actual heat-dispersing laws in the second cooling region and making the actual current density distribution of heat-transfer as boundary conditions, the solidification processes have been analyzed by establishing the solid heat-transfer mathematics model of the casting slab. Finally, the reasonable control strategies have been chosen, and the rational temperature field distributing model is optimized after dispersing treatment of heat-transfer. The present program is modularized that gather the dynamically casting tracking, optimization of water amount in the second cooling, temperature field calculation of casting. It is validated that the software could make the system stability and real-time better and more accurate, because the parameters are designed reasonably and commanded appropriately, and the temperature field distributing is according with the predetermine demands.

Related Dissertations

  1. The Control Software System Design of Pulsed High Magnetic Field Facility,TP273
  2. Design and Development for Process Control Software System of Injection Machine,TQ320.52
  3. Research on Servo Press Upper Computer Control and Process Planning Software,TP273
  4. Reservoir flood control decision support system design and development research,TP311.52
  5. LCD display unit control chip firmware and PC terminal control software design,TP273
  6. Magnetic adsorption Climbing Robot Control System Software,TP242
  7. Study on the Transformation of Hydraulic Universal Material Testing Machine Based on General Hardware Platform,TH879
  8. Application of SCADE in the Design of Flight Control Software for UAV,TP273
  9. Design and Realization of Map Management Information System,P208
  10. Research on the Control System of Semi-active Suspension,U270.3
  11. Logistic System Equipment,TH69
  12. Simulation System Design in Control Software Based on DirectX,TP273
  13. MOS Local Taxation Bureau Private rental tax control system development project schedule management research,F812.42
  14. Study and Optimization on Submerged Entry Nozzle Structure in FTSC Thin Slab Continuous Casting,TF777.7
  15. Research on Optimization and Control of the Casting Speed for the Billet Caster,TF341.6
  16. Analysis on Hot Rolling and Cold Rolling Texture of Fe-3% Si Steel Strip,TG335.1
  17. Based on the optimization of the power plant control system software development and use,TM769
  18. Design of PLC Control System in Elevator Based on Converter Technique,TU857
  19. Research and Implement of Software Stress Testing and Testing Tools,TP311.52
  20. Research on Public System in the Storage and Management of Tobacco,TP311.52
  21. The Application of Activity-based Costing Management in Software Industry,F406.72

CLC: > Industrial Technology > Metallurgical Industry > Steelmaking > Ingot > Continuous cast steel,near net shape casting > Slab Continuous Casting
© 2012 www.DissertationTopic.Net  Mobile