It can produce all inds of ightweight refractory aggregate between 0mm and 20mm according to the needs of users. Its main characteristics are high strength and low themal conductivity, which makes it the preferred lightweight aggregate for the production of lightweight castable.
| Category | Lightweight refractory aggregate | ||||||||||||||||||
| Mullite | High aluminum | Clay | |||||||||||||||||
| Grade | YQG-M | YQG-L1 | YQG-L2 | YQG-N1 | YQG-N2 | ||||||||||||||
| Bulk density | 0.7-1.0 | 0.65-0.85 | 0.6-0.8 | 0.65-0.8 | 0.6-0.9 | ||||||||||||||
| Compressive strength | 3.0 | 2.5 | 2.0 | 2.5 | 2.0 | ||||||||||||||
| Rate of change of reburning line(℃/h)% | (1400×3) -0.4 | (1350×3) -0.4 | (1350×3) -0.5 | (1300×3) -0.5 | (1300×3) -0.4 | ||||||||||||||
| Chemical composition % | AL₂O₃%≥ | 65 | 50 | 48 | 38 | 35 | |||||||||||||
| Fe₂O₃%≤ | 1.0 | 1.2 | 2 | 1.3 | 2.5 | ||||||||||||||
| Refractoriness ℃≥ | 1780 | 1730 | 1710 | 1690 | 1650 | ||||||||||||||
