Product description
Phosphate-bonded high alumina bricks represent a specialized category of refractory materials engineered with advanced chemical bonding technology. This innovative manufacturing process results in bricks with exceptional cold crushing strength exceeding 100 MPa and improved resistance to acidic environments, making them ideal for applications involving aggressive chemical attack. The phosphate bonding also provides excellent thermal shock resistance, allowing these bricks to withstand rapid temperature changes up to 1200°C without structural degradation, while maintaining low porosity and high dimensional stability throughout their service life.
Advantages of Phosphate bonded high alumina brick
Phosphate-bonded high alumina bricks serve as wear-resistant linings in cement mills, coal pulverizers, and mineral processing equipment, where their superior abrasion resistance extends equipment life and reduces maintenance costs. Their ability to be installed at room temperature without requiring high-temperature curing makes them particularly suitable for emergency repairs and rapid installation projects.
Physical and chemical index of Phosphate-bonded high alumina bricks
| Brands | Ordinary phosphate brick | Phosphate combined wear-resistant brick | Special phosphate brick | Phosphate composite brick | |
| Items | CH-PZ75 | CH-PA75 | CH-PT80 | Heavy part | Lightweight part |
| AL2O3/% | 75 | 75 | 80 | 75 | 55 |
| Fe2O3%≤ | 2.1 | 2.1 | 1.8 | 2 | 1.5 |
| Refractoriness / | 1770 | 1770 | 1790 | 1770 | ---- |
| Bulk density (110℃×24h) g/cm3 | 2.7 | 2.75 | 2.9 | 2.8 | 1 |
| Compressive strength/ MPa ≥ | 70 | 75 | 80 | 75 | 5.5 |
| 0.2Mpa refractoriness under load /℃≥ | 1350 | 1300 | 1520 | 1350 | --- |
| Thermal shock resistance(1100℃)/time | 20 | 20 | 15 | ---- | ----- |
Packages:
Products Description
Zhengzhou Caihua Kiln Masonry Installation Co., Ltd, be called for short of CH Refractories was founded in 1984, have advanced process equipment and raw material preparation system.
A full set of refractories conventional testing equipment, can ensure the quality before sending to customers. Annual production of a variety of shaped and unshaped refractory materials 120,000 tons.
CH Refractories mainly produce refractory materials for metallurgical, coking, cement industry, electric power industry, chemical and general industrial furnaces. The refractory products exported to Middle east, South America, Middle Asia, Southeast Asia, Africa and other regions.
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Physical and chemical index of high alumina brick 75%
| Brands | Ordinary phosphate brick | Phosphate combined wear-resistant brick | Special phosphate brick | Phosphate composite brick | |
| Items | CH-PZ75 | CH-PA75 | CH-PT80 | Heavy part | Lightweight part |
| AL2O3/% | 75 | 75 | 80 | 75 | 55 |
| Fe2O3%≤ | 2.1 | 2.1 | 1.8 | 2 | 1.5 |
| Refractoriness / | 1770 | 1770 | 1790 | 1770 | ---- |
| Bulk density (110℃×24h) g/cm3 | 2.7 | 2.75 | 2.9 | 2.8 | 1 |
| Compressive strength/ MPa ≥ | 70 | 75 | 80 | 75 | 5.5 |
| 0.2Mpa refractoriness under load /℃≥ | 1350 | 1300 | 1520 | 1350 | --- |
| Thermal shock resistance(1100℃)/time | 20 | 20 | 15 | ---- | ----- |
