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Volume 7 Issue 1
Oct.  2021
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Article Contents
Peng Yuqiang, Li Lifen, Li Liansheng, Zhu Yuankai. Investigation of Modifying Treatment with Rare-Earth Oxide for High-sulphur Moltem[J]. Chinese Journal of Engineering, 1985, 7(1): 80-86. doi: 10.13374/j.issn1001-053x.1985.01.022
Citation: Peng Yuqiang, Li Lifen, Li Liansheng, Zhu Yuankai. Investigation of Modifying Treatment with Rare-Earth Oxide for High-sulphur Moltem[J]. Chinese Journal of Engineering, 1985, 7(1): 80-86. doi: 10.13374/j.issn1001-053x.1985.01.022

Investigation of Modifying Treatment with Rare-Earth Oxide for High-sulphur Moltem

doi: 10.13374/j.issn1001-053x.1985.01.022
  • Available Online: 2021-10-29
  • Applying solid slag Cakes of rare earth oxide as a desulphurizinga gent as well as a modifying agent and under Condition of Ar-blowing, a hy-pereutictic hot metal of high Sulphur content (s=0.100%) has been mo-difyied. Experiments are made at 1450 ℃ for about 30~35 minutes.
    Changeing laws of chemical composition in hot metal and relationship between graphite morphogy and contentof RE, CE in casting are abta-ined. Results indicate that the RE% ≤ (CE%-4.30%)/25 and the RE% ≥ (CE%-4.30%)/25 canbe abtained vermicalar cast iror and nodular cast iron respectively under hypereutectic hot metal. with regrad to disuph-urizing reaction and redwction reaction of rare earth oxrde, discussion and thermodynamic calculation have been Carried out. The results point out that the above mentioned reaction are all established thermodyra-mically umder the experimental condition.

     

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