| 摘要 |
PURPOSE:To obtain rock wool having improved colorability (design property), heat resistance, mechanical characteristic and corrosion resistance to water from inexpensive raw materials at a fiberizing temperature similar to that of conventional slag wool based rock wool, by blending ferrochromium slag with quartzite and iron ore slag. CONSTITUTION:Rock wool obtained by blending 5-90wt% ferrochromium slag with 5-30wt% quartzite and 0-90wt% iron ore slag. The composition thereof is 35-50wt% SiO2, 10-25wt% Al2O3, 2-20wt% CaO, 5-30wt% MgO and 0.2-10wt% Cr2O3 as principal components. The total content of TiO2, K2O, Na2O, MnO, FeO and S is up to 5wt% at the maximum.
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