Product Description:
◎Ceramic fiber castable, this product is a clay-like indeterminate refractory material, which is made of low slag ball content injecting fiber cotton as aggregate, with a certain proportion of binder, refractory filler and additives. It has the characteristics of low bulk density, low heat capacity, low thermal conductivity, high strength, and good air tightness. It is widely used in the lining of medium and low temperature thermal equipment and movable furnace covers. It can also be used as a heat insulation material for high temperature kilns. Kind of good insulation material. The product has good construction workability and strong integrity of the furnace wall after construction, which is especially suitable for wall linings with complex shapes.
Product Category:
◎Heat shield 1260 fiber castable RDGW-297
◎Heat shield 1400 fiber castable RDGW-497
Product Features:
◎Low heat capacity
◎Low thermal conductivity
◎High compressive strength
◎Excellent volume stability
◎Excellent construction performance
typical application:
◎Industrial kiln wall lining or high-temperature industrial kiln backing insulation layer. Including melting furnace, tunnel firing kiln, steel rolling soaking furnace, continuous heating furnace, heat treatment annealing furnace, pit furnace, bell furnace
◎Steel bucket lid
◎Electric heating furnace door, observation hole, burner brick
Technical index:
| product name | Ceramic fiber castable | ||||
| Product Code | RDGW-297 | RDGW-397 | RDGW-497 | RDGW-597 | |
| Maximum use temperature | 1050 | 1150 | 1250 | 1350 | |
| Long-term use temperature | 1000 | 1100 | 1200 | 1300 | |
| chemical composition（%） | AL2O3 | ≥30 | ≥35 | ≥40 | ≥40 |
| SiO2 | ≥30 | ≥40 | ≥35 | ≥35 | |
| density （kg/m³）
| Wet state | 1150-1250 | 1150-1250 | 1250-1350 | 1250-1350 |
| 110℃*24h After drying | 550 | 600 | 600 | 700 | |
| After burning | 500（1000℃*3h） | 550（1000*3h） | 550（1200*3h） | 550（1300*3h） | |
| Thermal conductivity （W/m.k） | average400℃
| 0.115 | 0.118 | 0.150 | 0.171 |
| average600℃ | 0.116 | 0.155 | 0.175 | 0.195 | |
| average800℃ | 0.185 | 0.195 | 0.221 | ||
| Cold flexural strength（MPa）≥ | 110℃*24h After drying | 0.4 | 0.4 | 0.5 | 0.5 |
| After burning | 0.4（1000℃*3h） | 0.4（1100℃*3h） | 0.4（1200℃*3h） | 0.4（1300℃*3h） | |
| Cold compressive strength （MPa）≥ | 110℃*24h After drying | 0.5 | 0.5 | 0.6 | 0.6 |
| After burning | 0.4（1000℃*3h） | 0.5（1100℃*3h） | 0.5（1200℃*3h） | 0.6（1300℃*3h） | |
| Heat shrinkage（%）≤
| 3（1000℃*24h） | 3（1100℃*24h） | 3（1200℃*24h） | 3（1300℃*24h） | |
| Initial setting time（min）≥
| 60 | 60 | 60 | 60 | |
| Demoulding time（h） | 3-8 | 3-8 | 3-8 | 3-8 | |
| Storage period | When not freezing and drying at high temperature: three months | ||||
| Package | Packed in bags, 25 kg/bag | ||||
