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:
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 |