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Hosphate- bonded high-alumina brick

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.
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  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
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

 

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