The casting process and high temperature oxidation resistance of high chromium cast iron grate bar

Authors

  • Chen Zhiru The school of materials science and engineering Henan Polytechnic University
  • Xu Lei
  • Zhao Linwei
  • Wang Youchao
  • Li Changyun
  • Mi Guofa

Keywords:

high chromium cast iron, grate bar, oxidation resistance, oxide films

Abstract

The solidification process of a high chromium cast iron grate bar used for sinter machine was simulated, and high temperature oxidation resistance was also investigated. The simulation result shows that sequence solidification can be achieved and no shrinkage cavity and porosity were observed. Based on the analysis of the microstructure, it could be known that the grate bar was well protected by the Fe3O4?Fe2O3 and Cr2O3 oxide films at temperatures lower than 800°C.

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Published

2019-01-14

Issue

Engineering Review, Vol. 39, No. 1

Section

Articles

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