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Material Type
Phosphate bricks, also known as phosphate-bonded high-alumina bricks, are high-alumina refractory products made from high-alumina bauxite clinker as aggregate and fine powder, with phosphate or aluminum phosphate as the binder, formed by semi-dry pressing and heat-treated at 400 to 600 degrees Celsius.
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The quality of high-alumina bricks varies significantly, as different raw materials are used, resulting in a large difference in aluminum content. Ordinary high-alumina bricks have an aluminum content between 55% and 75%, a bulk density of 2.3-2.5, and a refractoriness of 1750-1790℃.
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Silicon molybdenum brick AZM1680/1650/1550, selected high-quality bauxite and silicon carbide as the base materials, added the required proportion of additives and other auxiliary materials, achieving an optimized combination of the internal structure of the product, greatly improving its spalling resistance and erosion resistance.
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Anti-spalling high-alumina brick
Compared to traditional high-alumina bricks, spalling-resistant high-alumina bricks have strong spalling resistance, high refractoriness, good resistance to cracking, and strong corrosion resistance. They also resist the corrosion of potassium, sodium, sulfur, chlorine, and alkaline salts, and have low thermal conductivity.
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Heavy clay bricks have characteristics such as low linear expansion coefficient and good thermal shock stability, and they have good corrosion resistance to acidic slag.
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Corundum mullite castable is made from brown corundum and mullite aggregates as the main components, utilizing micro-powder technology, combined with white cement and additives.
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Steel fiber wear-resistant castable
It has characteristics such as high strength, good toughness, good thermal shock stability, strong spalling resistance, and wear resistance, making it suitable for areas with large temperature gradient changes and those that are prone to spalling and damage.
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Phosphate refractory castables are castables bonded with phosphate, belonging to an acidic matrix, with a usage temperature of 1400-1600℃.
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High-alumina castable is an unshaped refractory castable composed of high-alumina aggregates with an Al₂O₃ content greater than 75%, combined with high-alumina powder and additives, resulting in an overall aluminum content of >55%. After initial setting, high-alumina castable is standard cured for 28 days, and the compressive strength can reach 40~60 MPa.
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Generally, black silicon carbide (with a SiC content of over 96%) is selected as the raw material, combined with a binder (or without a binder), and produced through processes such as batching, mixing, forming, and firing.
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High Alumina Lightweight Brick / High Alumina Lightweight Insulation Brick
Suitable for thermal insulation layers in pyrolysis furnaces, hot air furnaces, and various resistance furnaces. It is also widely used in the metallurgical industry for various heating furnaces, coking furnaces, and thermal equipment.
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