High Alumina Brick

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  • Fireclay Brick

    Fireclay Brick

    Fireclay bricks are made of 50% soft clay and 50% hard clay clinker, which are batched according to certain particle size requirements. After molding and drying, they are fired at a high temperature of 13001400. Fireclay bricks are weakly acidic refractory products, which can resist the erosion of acidic slag and acid gas, and have a slightly weaker resistance to alkaline substances, good thermal performance, and resistance to rapid cold and heat

    Fireclay bricks are one of the main varieties of silica-alumina series products. They are refractory products with 30-48% Al2O3 content made of clay clinker as aggregate and refractory clay as binder.

  • Fused Cast AZS Block

    Fused Cast AZS Block

    Fused cast AZS block manufacturing process mixes selected zircon sand and industrial alumina powder at a ratio of 1:1, plus a small amount of Na2O (added in the form of sodium carbonate), B2O3 (added in the form of boric acid or borax) flux, and mix well After being melted at 1800~1900, it can be cast to form a fused-cast brick containing 33% ZrO2. On this basis, using partially desiliconized zircon sand as raw material, fused-cast bricks containing 36% to 41% ZrO2 can be produced. Zirconium corundum bricks use industrial alumina powder and selected zircon sand as raw materials to produce refractory products with a ZrO2 content of 33% to 45%.
    Fused cast AZS block is an important refractory material to ensure the normal operation of glass melting furnaces. At present, glass melting furnaces increase the melting rate, extend the life of the furnace, and reduce fuel consumption mainly due to the use of this refractory material.

  • Silica Brick

    Silica Brick

    Silica brick is an acidic refractory material with good resistance to acid slag erosion. The softening temperature of the silica brick under load is as high as 1640~1670°C, the volume is relatively stable at high temperature, and it can be used for a long time.

    An acidic refractory material mainly composed of tridymite, cristobalite and a small amount of residual quartz and glass phase. The silicon dioxide content is above 94%, the true density is 2.35g/cm3, it has resistance to acid slag erosion and higher high temperature strength. It will not deform after long-term use at high temperature. Low thermal shock stability (1~4 times of heat exchange in water) Natural silica is used as the raw material, and an appropriate amount of mineralizer is added to promote the conversion of quartz in the body to tridymite. Slowly fired at 1350~1430℃ under reducing atmosphere. When heated to 1450℃, there will be about 1.5~2.2% of the total volume expansion. This residual expansion will make the cut joints close and ensure that the masonry has good air tightness and structural strength.

  • Corundum Brick

    Corundum Brick

    The alumina content of corundum brick is more than 90% and the main crystal phase is corundum. It has high compressive strength at room temperature (up to 340MPa), high load softening start temperature (more than 1700℃), good chemical stability, and strong resistance to acidic or alkaline slag, metal and molten glass, etc. Resistance.
    Thermal shock stability is related to its structure, and the corrosion resistance of dense products is good. There are two types of sintered corundum bricks and fused corundum bricks. Sintered alumina and fused corundum can be used as raw materials, or bauxite clinker with high Al2O3/SiO2 ratio can be combined with sintered alumina and made by sintering method. Phosphoric acid or other bonding agents can also be used to make non-fired corundum bricks.

  • Al2O3-SiC-C Brick

    Al2O3-SiC-C Brick

    AI203-SiC-C brick, referred to as ASC brick. AI203-SiC-C brick is made of fused corundum (or sintered corundum, special grade bauxite clinker), graphite and silicon carbide with fixed carbon above 90%-95% as the main raw materials. It is made by adding graphite, bauxite, and additives, after batching, forming, drying and high temperature firing. ASC brick has very good high temperature performance and anti-oxidation, anti-flaking and anti-slag erosion properties, can withstand long-term high-temperature solution erosion, and has a long service life.

  • Silicon carbide brick

    Silicon carbide brick

    Silicon carbide bricks are made of silicon carbide as the main raw material, mixed with various binders according to requirements, and formed by high pressure. Silicon carbide bricks have high thermal conductivity, good wear resistance, thermal shock resistance, and corrosion resistance. They are ideal energy-saving materials for industrial kilns. It can be used for lining of aluminum electrolytic cell, molten aluminum pipe and kiln furniture for ceramic kiln, lower part of large and medium-sized blast furnace shaft, furnace waist and belly, aluminum refining furnace lining, zinc distillation tank lining, etc.

  • Special Alumina Brick

    Special Alumina Brick

    Special alumina bricks are made of high-grade sillimanite, pyrite, mullite, and corundum as raw materials, and have a refractoriness of 1750~1790. Among them, Al2O3 is high, and the amount of impurities is small, and the formation of fusible glass is small. Therefore, the load softening temperature is higher than that of clay bricks. Special alumina bricks contain more Al2O3, which is close to neutral refractory materials and can resist the erosion of acid slag and alkaline slag.

  • High Alumina brick

    High Alumina brick

    High alumina brick is an alumina silicate refractory material, in which alumina content exceeds 55%, and it is calcined from high content alumina raw materials. It has high heat resistance and high temperature resistance at 1770°C and above. High alumina bricks have good slag resistance and are mainly used for masonry of steel-making electric furnaces, glass furnaces, cement rotary furnaces, etc.

  • Fast delivery JM26 Insulating Fire Brick - Al2O3-SiC-C Brick – Topower

    Fast delivery JM26 Insulating Fire Brick - Al2O3-SiC-C Brick – Topower

    Description AI203-SiC-C brick, referred to as ASC brick. AI203-SiC-C brick is made of fused corundum (or sintered corundum, special grade bauxite clinker), graphite and silicon carbide with fixed carbon above 90%-95% as the main raw materials. It is made by adding graphite, bauxite, and additives, after batching, forming, drying and high temperature firing. ASC brick has very good high temperature performance and anti-oxidation, anti-flaking and anti-slag erosion properties, can withstan...
  • Europe style for Magnesium Bricks - insulation firebrick – Topower

    Europe style for Magnesium Bricks - insulation firebrick – Topower

    Description The density of insulation firebrick is 0.60~1.25g/cm3, and the working temperature is 900°C to 1600°C. Insulation firebrick can reduce the cost of the foundation, reduce the cross-section of the frame, and save reinforced concrete can significantly save the comprehensive cost of the building. Compared with solid clay bricks, the overall cost of using lightweight bricks can be reduced by more than 5%. Lightweight bricks have good work ability and are easy to construct. Feat...
  • New Arrival China Magnesia Spinel Brick - High Alumina brick – Topower

    New Arrival China Magnesia Spinel Brick - High Alumina brick – Topower

    Description High alumina brick is an alumina silicate refractory material, in which alumina content exceeds 55%, and it is calcined from high content alumina raw materials. It has high heat resistance and high temperature resistance at 1770°C and above. High alumina bricks have good slag resistance and are mainly used for masonry of steel-making electric furnaces, glass furnaces, cement rotary furnaces, etc. Features 1. Refractoriness High alumina bricks have higher refractoriness ...
  • Wholesale Dealers of Insulating Soft Fire Brick - Magnesia Hercynite Brick – Topower

    Wholesale Dealers of Insulating Soft Fire Brick - Magnesia Hercynite Brick – Topower

    Description Magnesia hercynite bricks have the advantages of chromium-free environmental protection, good thermal shock stability, good kiln skin hanging ability, good corrosion resistance, low thermal expansion and low thermal conductivity, and better structural flexibility. In practical applications, the brick has a service life of more than 1 year, the kiln skin is hung quickly in the firing zone, the thickness of the kiln skin is uniform and stable, the refractory bricks have no lar...