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High-strength mullite casting material

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Product Description

  product Overview:


  High-strength mullite casting material is a high-performance Casting material made of high-quality mullite aggregate, plus fine powder and additives. It has the advantages of good thermal shock stability, good structure, low creep rate, small thermal expansion and strong resistance to chemical erosion, etc., and can effectively extend the service life of the furnace lining. The curing, demolding and baking time is short, and it is not easy to burst; it is widely used in small and medium-sized cement kiln pre-decomposition kiln, front kiln mouth, coal injection pipe, low wall of cooler and other parts, and has excellent results. According to the physical and chemical indicators, it is divided into three brands: JC-80MC, JC-70MC and JC-65MC.


  Physical and chemical indicators of general purpose Clay brick:


Item JC-80MC JC-70MC JC-65MC
Al2O3 + SIO2  %  ≥ 80 70 65
Bulk Density(110 ℃×24h) g/cm³ ≥ 2.9 2.75 2.45
Compressive strength at room temperature   Mpa  ≥ 110 ℃×24h 100 100 80
1100 ℃×3h 120 110 90
Flexural strength at room temperature    Mpa  ≥ 110 ℃×24h 12 10 8
1100 ℃×3h 14 12 9
Permanent line change rate( 1100 ℃×3h)   %   ≤ ±0.3 ±0.3 ±0.5
Maximum use temperature   ℃ 1600 1600 1500


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