| 摘要 |
FIELD: physics. ^ SUBSTANCE: primary characteristic radiation of anode material of an X-ray tube is picked up on a series X-ray spectrometre with a chromium tube, where the said radiation is scattered by a sample prepared by pressing into a substrate made from boric acid. Intensity of the iron fluorescent line is also measured and the calibration curve is plotted as a function of the ratio of intensities of chromium and iron lines from the degree of metallisation, i.e. the ratio of metallic iron to total iron, wherein a pre-calibrated curve from 0 to 100% is present before obtaining the first production samples. Using the said calibration curve, the degree of metallisation of iron-ore metallised products is determined by direct measurement. ^ EFFECT: more accurate determination of degree of metallisation while maintaining rapidity of analysis. ^ 2 cl, 4 dwg |
