Low porosity clay brick DN-11 single hole brick
Corundum mullite brick is a high alumina refractory product composed of corundum and mullite main crystal phase. The use of industrial alumina powder and pure clay, bauxite or silica as raw materials for the synthesis of pure mullite raw materials, especially the content of alkali metal oxides should be as low as possible, to mullite as aggregate of the products made of good thermal shock resistance, but the erosion resistance is slightly worse, to corundum sand as aggregate products, good corrosion resistance. It has good high temperature strength, high temperature creep resistance, thermal shock resistance and corrosion resistance.
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Details Introduction
Corundum mullite brick is a high alumina refractory product composed of corundum and mullite main crystal phase. The use of industrial alumina powder and pure clay, bauxite or silica as raw materials for the synthesis of pure mullite raw materials, especially the content of alkali metal oxides should be as low as possible, to mullite as aggregate of the products made of good thermal shock resistance, but the erosion resistance is slightly worse, to corundum sand as aggregate products, good corrosion resistance. It has good high temperature strength, high temperature creep resistance, thermal shock resistance and corrosion resistance.
|
Performance |
Project |
Indicators |
|
chemical composition |
Al2O3 |
≥75 |
|
Fe2O3 |
≤1.5 |
|
|
Physical Performance |
Percent porosity (%) |
≤20 |
|
Bulk density (g/cm3) |
≥ 2.75 |
|
|
Normal temperature compressive strength (MPa) |
≥ 105 |
|
|
0.2MPa load softening temperature T0.6 (℃) |
≥ 1550 |
|
|
Refractoriness ℃ |
≥ 1790 |
|
|
Reburning line change (14500C × 2h)% |
≤0.2 |
|
|
Thermal vibration stability (times) 1100 ℃ Water cooling |
≥20 |
Key words:
Low porosity clay brick DN-11 single hole brick
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