该砂是选用特级和一级菱镁石,经轻烧、细磨、压球、高温竖窑烧结而成。中档镁砂杂质含量低、体积密度大、抗渣性能好,用于制造中档镁砖或镁质不定型耐火材料。
It is produced by light burning, fine grinding, dry ball in-dentation and sintering in extra high temperature oil shaft kiln with superior and first-class magnesite ore as raw materials.With low imperity content, high volume density and good refus-es resistance, it can be applied to produce medium magnesia bricks and unshaped refractory materials.
指标/牌号 | ZDM95 | ZDM94 | ZDM93 |
---|---|---|---|
MgO %≥ | 95 | 94 | 93 |
SiO2%≤ | 2.5 | 2.5 | 3 |
CaO %≤ | 1.8 | 1.8 | 2 |
Fe2O3%≤ | 0.8 | 0.8 | 0.8 |
Al2O3%≤ | 0.4 | 0.4 | 0.4 |
LOI %≤ | 0.3 | 0.3 | 0.3 |
B.D.≥(g/cm³) | 3.18 | 3.15 | 3.12 |