Description of Pyrophyllite Bricks:
The pyrophyllite brick, also called semi-silica brick has a small volume change in use.It can form a high viscosity glaze layer with slag at high temperature therefore it has good erosion resistance, and also has a good load softening temperature.
Technique Data of Semi-silica Bricks:
Item | Specification | |
Semi-silica Brick For Coke Oven | Semi-silica Brick For Ironing furnace | |
Al2O3 % | ＜30 | ≥20 |
SiO2 % | ≥65 | ≥65 |
Apparent Porosity % | ≤24 | ≤22 |
CCS MPa | ≥30 | ≥20 |
0.2MPa RUL ℃ | ≥1350 | ≥1250 |
PLC % 1350℃×2h | -0.2~0 | -0.5~0 |
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