Research of Influence Nitrogen Purge of the Formation the Metal Structure Active Layer of the Rolling-Mill Rolls by SRCNMdc

A.K. Avtukhov

Abstract


The information about the extra-furnace chrome-nickel hot iron processing for active layer of two-layer rolls. The analysis of the technological parameters of the casting rolls. It is found that the nitrogen purge in a ladle for an active layer of a chrome-nickel hot iron rolls helps to reduce the content of non-metallic inclusions in the active layer, also the proportion of retained austenite and contributes to generate thin martensite needles, which improves the operational durability of the rolls in 7.7 %.


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References


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DOI: http://dx.doi.org/10.24892/RIJIE/20150402

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