项目 Items | 烧成电炉顶砖Fired bricks for roof electric furnace | 不 烧 电 炉 顶 砖Unfired bricks for roof electric furnaces | |
DL-80 | DL-75 | ||
Al₂O₃%≥ | 80 | 75 | 75 |
耐火度℃≥Refractorines | 1780 | 1780 | 1780 |
0.2MPa荷重软化温度℃≥Refractoriness Under Load | 1530 | 1520 | 1500 |
显气孔率%≤Apparent porosity | 19 | 19 | 18 |
常温耐压强度MPa ≥Cold crushing strength | 75 | 65 | 65 |
重烧线变化率%(1500℃,2h)Beheat linear change | -0.2~-0.4 | -0.2~-0,4 | -0.2~-0.4 |
热震稳定性1100℃水冷,次≥ The thermal shock stabilityln 1100 CWater cooled (cycle | =20 |
High Alumina Brick for Electric Furnace Roof
Description