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Buildup Formation Mechanism of Carbon Sleeve in Continuous Annealing Furnace for Silicon Steel

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Characterization of Minerals, Metals, and Materials 2018 (TMS 2018)

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Abstract

Graphite, which has a unique stack structure that enables a small friction coefficient, is used as one kind of the best hearth rolls to support and convey silicon steel strip in continuous annealing furnace. However, the buildup formation in/on the surface of carbon sleeve has always been a worldwide difficulty in the silicon steel industry. Based on the analysis of the microstructure, topography and composition of the buildups , combined with simulation experiments, the mechanism of forming buildups is discussed. The results show that buildups experience the process from nucleating to growing-up, and buildups are formed by nano liquid phase sintering (NLPS). Meanwhile, some countermeasures to reduce or prevent the formation of the buildups are proposed.

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References

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Author information

Authors and Affiliations

  1. Wuhan Iron and Steel Co., Ltd., Wuhan, 430080, China

    Mingsheng He, Guohua **e, Xuecheng Gong, Wangzhi Zhou, **g Zhang & Jian Xu

Authors
  1. Mingsheng He
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  2. Guohua **e
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  3. Xuecheng Gong
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  4. Wangzhi Zhou
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  5. **g Zhang
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  6. Jian Xu
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Corresponding author

Correspondence to Mingsheng He .

Editor information

Editors and Affiliations

  1. Michigan Technological University, Houghton, Michigan, USA

    Bowen Li

  2. CanmetMATERIALS, Hamilton, Ontario, Canada

    Jian Li

  3. Al-Isra University, Amman, Jordan

    Shadia Ikhmayies

  4. ArcelorMittal Global R&D, East Chicago, Indiana, USA

    Mingming Zhang

  5. Middle East Technical University, Ankara, Turkey

    Yunus Eren Kalay

  6. Mail Stop G770, Los Alamos National Laboratory, Los Alamos, New Mexico, USA

    John S. Carpenter

  7. Michigan Technological University, Houghton, Michigan, USA

    Jiann-Yang Hwang

  8. Military Institute of Engineering, Rio de Janeiro, Brazil

    Sergio Neves Monteiro

  9. Politecnico di Torino, Turin, Italy

    Donato Firrao

  10. UNSW Canberra, Campbell, ACT, Australia

    Andrew Brown

  11. Chongqing University, Chongqing, China

    Chenguang Bai

  12. Central South University, Changsha, China

    Zhiwei Peng

  13. UNSW Canberra, Campbell, Aust Capital Terr, Australia

    Juan P. Escobedo-Diaz

  14. Naval Research Laboratory, Washington, District of Columbia, USA

    Ramasis Goswami

  15. Korea Railroad Research Institute, Uiwang, Korea (Republic of)

    Jeongguk Kim

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He, M., **e, G., Gong, X., Zhou, W., Zhang, J., Xu, J. (2018). Buildup Formation Mechanism of Carbon Sleeve in Continuous Annealing Furnace for Silicon Steel. In: Li, B., et al. Characterization of Minerals, Metals, and Materials 2018 . TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-72484-3_40

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