Big Fireclay Bottom Blocks

Big Fireclay Bottom Blocks
Big Fireclay Bottom Blocks
Big Fireclay Bottom Blocks
Big Fireclay Bottom Blocks
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Big Fireclay Bottom Blocks

Item: Behaviors

Refractoriness: ≥1750℃

Bulk Density: ≥2.3 g/cm3

Apparent Porosity: <18%

Cold Crushing Strength: >50 Mpa

0.2Mpa Softening Temp Under Load: ≥1450℃


Using big vibrating table and adopting special castables, the company produces furnace large fireclay blocks with vibrate moulding technology. The physical and chemical properties and appearance of the blocks have exceeded the national standards. The resistant ability to molten glass of the products is better than that of fanditional casting process products and ramming products. The products are especially suitable to build the bottom of furnace, cooling and working end side wall of glass furnace.

◆ Low permanent linear change on reheating;
◆ High dense structure;
◆ Good Thermal Shock Stability.

◆ Good wear-resistance;
◆ Corrosion-resistant;
◆ Various shapes;
◆ High quality.

Technical Data
Item Behaviors
Physical properties Refractoriness (℃) ≥1750
Bulk Density (g/cm3) ≥2.3
Apparent Porosity (%) <18
Cold Crushing Strength (Mpa) >50
0.2Mpa Softening Temp Under Load (℃) ≥1450
1400℃x2h Permanent Linear Change (%) ±0.2
Chemical Composition (%) Al2O3 ≥40
Fe2O3 ≤1.5

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