Volume 3, Issue 6 (June 2006)

    Study of Vacuum Carbon-Deoxidization of High Carbon Chromium Bearing Steel

    (Received 26 April 2005; accepted 10 March 2006)

    Published Online: 2006

    CODEN: JAIOAD

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    Abstract

    This paper describes the negative influence of high residual aluminum which is used as a deoxidant in the steel and raises the newest control requirement for high carbon steel on residual aluminum. By means of thermodynamic calculation and production practices, the total oxygen (Σ[O]) in the steel can be 10 ppm through carbon-oxygen reaction under the conditions of high vacuum, proper top slag composition, and argon stirring during ladle refining/vacuum degassing (LF/VD) processes of high carbon chromium bearing steel. Meanwhile, the size of D-type inclusion in the steel is obviously reduced. Thus, the purity of the bearing steel is improved. Since the consumption of aluminum used for deoxidation is reduced, the unit cost of bearing steel is obviously reduced.


    Author Information:

    Zheng, L
    Baosteel Group Shanghai No.5 Steel Co., Ltd.,

    Minghua, X
    Baosteel Group Shanghai No.5 Steel Co., Ltd.,


    Stock #: JAI14024

    ISSN: 1546-962X

    DOI: 10.1520/JAI14024

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    Author
    Title Study of Vacuum Carbon-Deoxidization of High Carbon Chromium Bearing Steel
    Symposium Bearing Steel Technologies: Seventh International Symposium, 2005-05-19
    Committee A01