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Phosphate bonded high alumina bricks
Numbering
Affiliate classification Hosphate- bonded high-alumina brick
Weight 0
Product Description
Product Overview:
Hosphate-bonded high-alumina brick is a refractory product made of high-quality high-alumina clinker as the main raw material, using phosphoric acid or aluminum phosphate as a binder, mixed at a certain ratio, and then press-molded and heat-treated at 400 ° C to 600 ° C. . According to the physical and chemical indicators are divided into P, PA two brands. Mainly used in cement and other industrial kilns.
Physical and chemical indicators：
| Item | Hosphate- bonded high-alumina brickP | Phosphate bonded high alumina wear-resistant brick PA | ||
| Ⅰ | Ⅱ | Ⅰ | Ⅱ | |
| Al2O3 % ≥ | 75 | 77 | ||
| Fe2O3 % ≤ | 3.2 | 3.2 | ||
| CaO % ≤ | 0.6 | 0.6 | ||
| Compressive strength at room temperature Mpa ≥ | 70 | 60 | 75 | 65 |
| Bulk Density g/cm³ ≥ | 2.70 | 2.65 | 2.75 | 2.70 |
| Load softening start temperature T0.6 ℃ ≥ | 1350 | 1300 | 1300 | 1250 |
| Thermal shock stability (1100 ℃, water-cooled) times ≥ | 10 | |||