Dissertation > Excellent graduate degree dissertation topics show

Type High Chromium Cast Iron Wear-resistant Plate Welding Technology Preliminary Study

Author: FanZhiJie
Tutor: GaoShiYou
School: Yanshan University
Course: Materials Processing Engineering
Keywords: high chrome cast iron microstructure finite element temperature field
CLC: TG455
Type: Master's thesis
Year: 2013
Downloads: 74
Quote: 0
Read: Download Dissertation

Abstract


Every year the loss caused by mechanical parts wear in our country is very big, highchromium cast iron hardfacing alloy is an important kind of low stress abrasive wearresistant alloy, because of its high hardness, good comprehensive performance and lowprice, much attention has been paid to the study of high chromium cast iron wear-resistantplate welding technology has important application value.At home and abroad this paper summarizes the development of surfacing weldingmaterial and welding thermal process of the research history and the latest development,analysis of the microstructure and the properties of high chromium cast iron hardfacinglayer, use the dissimilar materials based on the real morphology analysis method oftemperature field, temperature field of surfacing welding process produces a3d dynamicsimulation.This paper analyzes the welding tablet and establish its mathematical model, usingJMatPro software to calculate the thermal parameters of high chromium cast iron. Adoptthe method of surfacing welding in45#steel substrate preparation of high chromium castiron wear-resistant overlaying welding layer, studied different speeds on themicrostructure and hardness of high chromium cast iron wear-resistant alloy and the effectof using optical microscope, XRD, SEM analysis of the surfacing layer microstructure.Simulated the thermal physical parameters, based on finite element model of realtopography, write APDL language to solve the problem of a gaussian heat source movingon a curved surface in the ANSYS software is used to calculate the temperature fieldunder the action of moving heat source, analyzed the setpoint at different speed when thetemperature changes, through the contrast to find the speed of optimization. Analysis ofoptimal parameter selection different paths, the change rule of temperature gradientmorphology compared the simulated temperature field with truth.

Related Dissertations

  1. Reactive Hot-Pressing and Mechanical Properties of （ZrB2-ZrO2）/BN Composites,TB332
  2. Research on the Mainframe System of Powder Mixed EDM and the Craft Experiment,TG661
  3. Microstructure and Mechanical Properties of Mg-Zn-Y-Zr Alloys,TG146.22
  4. Investigation on Microstructure and Properties of Cadmium-Free Silver-Based Intermediate Temperature Filler Metals,TG425.2
  5. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  6. EDM Electrode Wear Mechanism and Control Research,TG661
  7. Research on the Structure and Characteristics of Permanent Magnetic Coupling,TH139
  8. Finite Element Analysis and Structure Optimal Design for Combined Seal at Normal Temperature and Low Temperature,TH136
  9. Study on Contact Fatigue Life Based on Grease Variation with Temperature,TH117.22
  10. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  11. Analysis and Study of Abutment Stability in Concrete High Arch Dam by Three-Dimensional Nonlinear Finite Element Method,TV642.4
  12. Based on Nonliner Finite Element Analysis of the Infilled Wall Frame Structure,TU323.5
  13. The Investigations on the Characteristics and Mechanism of NIR Emission from Bi-doped Silicophosphate Glasses,TQ171.1
  14. Design of Testing Equipment for Electronic Products,TN06
  15. Study on the Fine Structure of Intestine and Intestinal Mucosal Barrier in Zebrfish (Brachydanio Rerio),Q95-33
  16. S-lay Installation Analysis for Deepwater Pipeline,TE973
  17. The Establishment and Preliminary Application of the Three-dimensional Finite Element Model of Ankle Joint,R687.3
  18. Studies on the Aggregation and Microstructure of Imidazolium Ionic Liquids in Solutions,O645.1
  19. Different Bottom Structure of Dental Brackets Affect the Adhesiveness-Three Dimensional Finite-element Analysis,R783.5
  20. Airborne radar antenna pedestal rapid design systems research and development,TN959.73
  21. Sham hose drum drive means and hydraulic system of the structure,TE973

CLC: > Industrial Technology > Metallurgy and Metal Craft > Welding, metal cutting and metal bonding > Welding process > Surfacing and repair welding
© 2012 www.DissertationTopic.Net  Mobile