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Phosphate bonded fire-resisting casting material

product Overview:   Phosphate bonded fire-resisting casting material is a high-quality Casting material that uses high-quality high-alumina bauxite as the main raw material, adds ultrafine powder, and uses a phosphoric acid solution as a binder. According to the performance physical and chemical indicators, it is divided into three grades: LL-75, LL-60 and LL-45.
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Product Description

  product Overview:

 

  Phosphate bonded fire-resisting casting material is a high-quality Casting material that uses high-quality high-alumina bauxite as the main raw material, adds ultrafine powder, and uses a phosphoric acid solution as a binder. According to the performance physical and chemical indicators, it is divided into three grades: LL-75, LL-60 and LL-45.

 

  Physical and chemical indicators:

 

Item LL-75 LL-60 LL-45
Al2O3               %           ≥ 75 60 45
Refractory          ℃              ≥ 1780 1740 1700
Test temperature at which the linear change rate after burning is not more than ± 1%(Insulation3h)  ℃ 1500 1450 1350
Compressive strength at room temperature(110 ℃×24h)     Mpa       ≥ 30 25 20
Flexural strength at room temperature(110 ℃×24h)     Mpa        ≥ 5 4 3.5

 

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