Dissertation > Excellent graduate degree dissertation topics show

Solidification and Heat Transfer of Slab and Mechanical Behavior Analysis During Straightening

Author: SunYanChao
Tutor: ZhangXingZhong
School: Yanshan University
Course: Mechanical Design and Theory
Keywords: Finite Element Method Slab casting Solidification Thermal coupling Straightening Stress-strain
CLC: TF777.1
Type: Master's thesis
Year: 2011
Downloads: 73
Quote: 1
Read: Download Dissertation

Abstract


High-temperature heat transfer and solidification of the slab in the process of straightening liquid core is solid-liquid two -phase flow conditions exist , its temperature , stress distribution, strain and strain rate distributions coupled to each other and influence each other , related to the product quality and production efficiency. Therefore, these two processes research has important theoretical and practical significance. Based on a steel slab caster type R9300 actual situation of production , the use of elastic-plastic finite element analysis , with MSC.Marc software platform , a thickness of 230 mm, a width of 1000 mm slab finite element simulation . ( A ) determining the desired slab temperature field simulation of heat transfer equations and boundary conditions . Reasonable assumptions and simplifications conditions, a three-dimensional unsteady solidification model . Under the impetus of a rigid body along a curved orbit makes the slab to straightening front . With the movement of the slab corresponding to exert thermal boundary conditions , and ultimately makes the slab to bend the straight and get various stages before straightening temperature distribution and shell thickness . ( 2 ) reasonable assumptions and simplifications conditions, the establishment of multi- point straightening thermal coupling model . Preceding the straightening temperature field simulation results as a slab thermal initial conditions. Ignore the slab before straightening deformed to the initial stress , initial strain forces are zero initial conditions as the slab . Slab roller driven by the movement , coupled with the direct method, the liquid core slab with multi-point straightening process simulation to obtain temperature, stress , strain and strain rate distribution . ( 3 ) multi-point due to gravity simulation of deformation and with straightening before comparison, the role of gravity for straightening rolls can not be ignored . ( 4 ) in the same casting conditions, simulating a continuous deformation straightening straightening with multi-point comparison , more accurate representation of continuous straightening superiority.

Related Dissertations

  1. Coupled Calculation of the Solidification Paths of Ternary Eutectic Alloys Based on Thermo-Calc,TG111.4
  2. Research on the Structure and Characteristics of Permanent Magnetic Coupling,TH139
  3. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  4. Stability Analysis of Roller Compacted Concrete Gravity Dam Based on Time-history Method,TV642.2
  5. Research on Intelligent Aerial Bomb for Forest Fire Fighting,S762
  6. Study of Modal Characteristics of a Car Body-in-White,U463.82
  7. Research of Continuous Curve and More Excellent Straightening Turn on R9300 Slab Castingmachine in an Steel,TF341.6
  8. The Band Structure in 2D Resonant Phononic Crystal,O735
  9. Simulation of Huge Rectangular Ingot by Different Intensive Cooling,TG244.3
  10. Numerical Simulation in Directional Solidification of Steel Ingot and the Study of Insulation Effect by Hollow Sidewall,TG111.4
  11. Based on the design and simulation of the ADuC845 strain test data acquisition software,TP274.2
  12. Research on Sensing with High Birefringent Photonic Crystal Fiber,TP212
  13. Property Research on NiMnGa Magnetic Functional Materials,TG139.6
  14. Preparation of Unfired Bricks by Industry Sludge Solidified Cement and Analysis of Economy and Technique,X703
  15. Numerical and Experimental Studies for Multi-Cracks of Asphalt Pavement with Semi-Rigid Basement Asphalt,U416.217
  16. Study on the Influence of Various Defects on the Characteristics of Infrared Photonic Crystal Fiber,TN253
  17. Applications of Vector Finite Element Method to Simulate Logging While Drilling Resistivity Tools,P631.83
  18. Analysis of Rotor Temperature Field of Hydro Generator on Asymmetric Operation Condition,TM312
  19. BV Regularization Method for the Function Reconstruction from Noisy Local Averages,O174
  20. Uniform deformation laminate interlaminar stresses Numerical simulation and high-temperature creep behavior of 40Cr steel,TB33
  21. Scrap copper smelting furnace temperature measurement method,TF811

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