Fire Clay Insulation Castable Introduction
Refractory castable is an unshaped refractory material delivered in the state of dry powder, and mixed before use, can harden at the ambient temperature to achieve adobe strength after construction without heating.
Light weight refractory castable composed of refractory lightweight aggregate, powder, binder and admixture and other components. The refractory product has characteristics of small volume, high compressive strength, good acid and acid gas corrosion resistance, good insulation performance, low water absorption. Which construction is simple,it is the best construction product for the high temperature alkali resistant parts. Good workability, strong cohesion, initial setting time and construction can be a long time, fast strength growth, strong impermeability, no acidification, easy to ensure that the masonry plaster full and dense, can significantly improve the chimney liner air tightness, integrity and anti-corrosion ability. It is an ideal cementing material for high chimneys, high temperature flue and duct lining. It can also be used in acid tank and other acid resistant parts in petroleum, chemical, nonferrous metallurgy and so on.
Fire Clay Insulation Castable Features
1. Have good drying strength.
2. Have low thermal conductivity.
3.Have strong peeling resistance.
4.Have good thermal insulation performance.
5.Have low wire shrinkage, good casting integrity,
6.Have good thermal expansion resistance
Fire Clay Insulation Castable Specification
| Item |
RS-0.5 |
RS-0.8 |
RS-1 |
RS-1.3 |
RS-1.5 |
RS-1.8 |
RS-2 |
|
| Chemical Composition % |
Al2O3 ≥ |
38 |
40 |
40 |
40 |
45 |
45 |
45 |
| Bulk density g/cm3 ≥ |
110°C,24h |
0.5±0.1 |
0.8±0.1 |
1.0±0.1 |
1.3±0.1 |
1.5±0.1 |
1.8±0.1 |
2.0±0.1 |
| Reheating linear change % |
1000°C,3h |
-1.0~0 |
-1.0~0 |
-1.0~0 |
-0.5~0 |
-0.5~0 |
-0.5~0 |
-0.5~0 |
| Compressive strength MPa ≥ |
110°C,24h |
1 |
2 |
3 |
6 |
7 |
12 |
15 |
| 1000°C,3h |
1 |
2 |
3 |
7 |
12 |
25 |
30 |
| 1350°C,3h |
- |
- |
- |
- |
20 |
30 |
35 |
| Thermal conductivity W/(m.k) |
700°C |
0.15 |
0.25 |
0.35 |
0.4 |
0.65 |
0.7 |
0.75 |
| 1000°C |
- |
- |
0.4 |
0.45 |
0.75 |
0.75 |
0.9 |
| Service temperature °C ≥ |
1100 |
1150 |
1200 |
1250 |
1300 |
1300 |
1350 |
Fire Clay Insulation Castable Application
• Metallurgical industry
• Petroleum, chemical industry, building materials, electric power
• Engineering industry furnace and thermal equipment
Fire Clay Insulation Castable Advantage
Ordinary clay refractory insulation castables have been widely used in furnaces such as soaking furnaces and heating furnaces, which have achieved good economic results. The service life of the rolling steel heating furnace is generally 3 to 10 years, the service life of the forged steel chamber heating furnace is about 2 years. The service life of the single-side upper burner is generally 3 to 6 years.
Fire Clay Insulation Castable Supplier in RongSheng Refractory Factory
ZHENGZHOU RONGSHENG KILN REFRACTORY CO., LTD specializing in the production of refractory materials for nearly 20 years, now has formed a comprehensive enterprise for the production of refractory materials for the metallurgy, building materials, power, and chemical industries.
Rongsheng refractory factory have a strong technical team, including the kiln construction team on-site guidance technical team and R & D team and research team and major universities jointly set up to solve various high requirements of customers. Testing team professional testing team, according to the physical and chemical indicators of refractory materials, refractory material is tested whether it meets the requirements of customers.
