Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Evaluation of High Temperature Abrasion Resistance of Spray-Coated Grate Bar

용사 코팅된 그레이트바의 고온 내마모 특성 평가

  • Cho, Hee-Keun (Mechnical Engineering Education Department, Andong National Univ.) ;
  • Ahn, Jin-Hyo (Research Department, Exto engineering Co. Ltd.)
  • Received : 2017.09.03
  • Accepted : 2017.09.15
  • Published : 2017.10.31
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Abstract

The grate bar, a component used in steel mills, is used in harsh environments where external disturbances such as high temperature, abrasion, corrosion, and impacts are present. Therefore, in this study, spray-coating was performed on the most severely affected surface to extend the lifetime of the grate bar. The thermal and mechanical properties of the sprayed coated bars were investigated based on the performances under abrasion, thermal shock, tension, and sand blasting, and the microstructures by microscope. By analyzing the thermal and mechanical properties of the uncoated original grate bar and coated grate bar and comparing them with one another, the physical performance improvement of the coated grate bar can be verified.

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References

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