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High aluminum seven-hole lace lattice brick

product Overview:   High-alumina brick for hot-blast furnace is a refractory product which is calcined high-quality high-alumina bauxite clinker and binder first through granulation and pulverization processes, mixed in a certain proportion, and then press-molded and fired at high temperature. According to the physical and chemical indicators, it is divided into three brands: RL-65, RL-55, and RL-48. Mainly used for masonry hot blast stove wall.
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Product Description

  product Overview:

 

  High-alumina brick for hot-blast furnace is a refractory product which is calcined high-quality high-alumina bauxite clinker and binder first through granulation and pulverization processes, mixed in a certain proportion, and then press-molded and fired at high temperature. According to the physical and chemical indicators, it is divided into three brands: RL-65, RL-55, and RL-48. Mainly used for masonry hot blast stove wall.

 

  Physical and chemical indicators:

 

Item Indicator
RL-65 RL-55 RL-48
Al2O3        %          ≥ 65 55 48
Refractory       ℃      ≥ 1780 1760 1740
Apparent porosity      %            ≤ 22(24) 22(24) 22(24)
Compressive strength at room temperature    Mpa       ≥ 50 45 40
0.2MPaLoad softening start temperature ℃   ≥ 1500 1470 1420
Reburning line change         % 1500℃×2h
-0.4~+0.1
1450℃×2h
-0.4~+0.1

 

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