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Product Introduction:
Low-porosity clay bricks are primarily made from high-alumina bauxite and coke rock as the main raw materials. They are produced by mixing, forming, drying, and firing in a kiln after proportionally blending with sillimanite and andalusite, along with additives such as binders and bonding agents, resulting in a low-porosity clay product with a typical porosity rate of less than 17%.
Features:
1. Low apparent porosity and high density.
2. Excellent anti-permeability and anti-corrosion properties.
3. High high-temperature strength and long service life.
Application:
Low-porosity fireclay bricks are primarily used in the regenerative chambers of glass kilns. They can also be applied as refractory linings in blast furnaces and hot blast stoves in the steel industry, cement kilns in the building materials
sector, and chemical reactors in the chemical industry.
Technical Properties:
Item | Low Porosity Fireclay Brick | ||
FDNZ-12 | FDNZ-14 | FDNZ-16 | |
Al2O3 / % | ≧46 | ≧45 | ≧42 |
Fe2O3 / % | ≦1.0 | ≦1.3 | ≦1.8 |
Apparent Porosity / % | ≦12 | ≦14 | ≦16 |
Bulk Density / g/cm3 | ≧2.4 | ≧2.34 | ≧2.26 |
Cold Crushing Strength / MPa | ≧80 | ≧65 | ≧50 |
Linear Change on Reheating ( 1400℃*2h) / % | ±0.1 | -0.3 | -0.3 |
Refractoriness Under Load ( 0.2Mpa) / ℃ | ≧1520 | ≧1470 | ≧1430 |
Creep Rate (1200℃*50h, 0.2Mpa) / % | ≤0.1 | - | - |
