Development and prospect of calcium oxide metallurgical production technology

ZHAO Fu- cai,ZHANG Zhao- hui,YANG Lei,KE Jing

Journal of Iron and Steel Research ›› 2018, Vol. 30 ›› Issue (4) : 259-264.

Journal of Iron and Steel Research ›› 2018, Vol. 30 ›› Issue (4) : 259-264. DOI: 10. 13228/j.boyuan.issn1001- 0963. 20180023

Development and prospect of calcium oxide metallurgical production technology

  • ZHAO Fu- cai,ZHANG Zhao- hui,YANG Lei,KE Jing
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Abstract

The importance of the oxide metallurgy (OM) technology was recognized. Better products without the defects of coarse- grained HAZ microstructure were produced. The production development, research focus, problems remaining and the research progress of calcium- based OM at home and abroad were introduced. The production technology of calcium- based OM was developed. By this technology, high- performance steel with acicular ferrite online formed was produced via controlling the oxygen contents in the molten steel, adding calcium- based oxide metallurgical agent, controlled rolling and controlled cooling. And then, the differences between calcium- based OM and OM were analyzed. And the applications of calcium- based OM production technology in ordinary construction steel and ship steel were discussed. It is hoped that this technology can be developed and popularized in more steel productions.

Key words

Calcium oxide metallurgy technology / Effective inclusion / Nucleation / Acicular ferrite

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ZHAO Fu- cai,ZHANG Zhao- hui,YANG Lei,KE Jing. Development and prospect of calcium oxide metallurgical production technology[J]. Journal of Iron and Steel Research, 2018, 30(4): 259-264 https://doi.org/10. 13228/j.boyuan.issn1001- 0963. 20180023

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