Low porosity clay bricks
The product is made of high quality hard clay and high bauxite, which is formed by high pressure and sintered at high temperature. It has the characteristics of low porosity, strong corrosion resistance and high load softening temperature. It is widely used in various kilns, especially in the middle and lower parts of the regenerator of glass kiln.
DN-10、DN-12、DN-15、DN-17 series of brick types are made by corresponding technological formula to meet the needs of different environment of glass kiln, and the overall performance of kiln is improved.
| Physical and chemical index of The rate physicochemical index of glass kiln brick with low porosity | ||||
| Ltem | Performance index | |||
| DN-10 | DN-12 | DN-15 | ||
| Chemical composition(%) | Fe2O3 | ≥45 | ≥45 | ≥42 |
| Al2O3 | ≤0.9 | ≤1.2 | ≤1.5 | |
| Physical properties | Apparent porosity（%） | ≤9 | ≤12 | ≤15 |
| Volum density（g/cm³） | ≥2.45 | ≥2.37 | ≥2.30 | |
| True density（g/cm³） | ≥2.73 | |||
| Normal temperature pressure strength,Mpa | ≥80 | ≥68 | ≥58.8 | |
| Load softening temperature T0.6 ℃ | 1540 | 1500 | 1470 | |
| Heavy firing line change(1400℃×2h)% | -0.1～+0.05 | -0.2～0.0 | ||
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