| 摘要 |
The product is formed by the association of granulated magnesium or magnesium alloy, with roundish contours, of a grading comprised between 0.1 and 3 mm, and of a granulated slag, with a basicity index higher than 1, comprising alumina, lime, silica and magnesium oxide, and optionnally an additional flux, with a grading comprised between 0.1 and 3 mm, in a ratio from 90 to 10%, and preferably from 80 to 20% of granulated magnesium, and from 10 to 90% and preferably 20 to 80% of granulated slag. Application to the desulphurization of refining and moulding cast irons, to the nodulizing of moulding cast irons, by lance injection, in a carrier gas stream, into the liquid cast iron or steel. |
