Fire Clay Refractory Castable Description
Fireclay refractory castable adding alumina powder material, soft clay binder, according to the proportion of compound mixture mixing more than 5 minutes and the mixer, generally, the using temperature is 1300-1450 ℃. fireclay refractory castables are mainly used in the lining of steel rolling heating furnace, heat treatment furnace,boiler, shaft kiln, preheating zone of rotary kiln. Also refractory fire clay castable is widely used in various kinds of kiln lining. such as boiler, blast furnace hot blast stove, heating furnace, ceramic kiln, cement rotary kiln,power plant wall etc.
Properties of Fire Clay Refractory Castable
- High strength and wear resistance,
- Good resistance to flake performance,
- Good thermal shock stability,
- Scouring resistance,
- Good hot strength.
Manufacturing Process of Fire Clay Refractory Castable
Material selection is a very important process, which is an important link to ensure the production of clay pouring materials. According to the formula and use, suitable refractory clay pouring materials, powder, binder and additives are selected.
The batching is to screen the selected refractory raw materials according to the grade according to the formula, and strictly control the size of aggregate and powder.
When stirring, mix the powder evenly, and then mix the aggregate evenly.Add the mixture into the aggregate and mix it again. Control the stirring time.
Put the stirred clay pouring material into the ton bag, and equip it with additives and binder, and then package.
The packaged pouring materials shall be stored in the warehouse, and the date shall be marked and waterproof
Matters Need Attention on Using Fire Clay Refractory Castable
Strictly control the water consumption when making clay pouring mud on site.
During construction, pay attention to vibration time and vibration mode.
Control the baking process after pouring, prohibit excessive heating and prevent cracking of construction body.
Rongsheng Refractory Fire Clay Refractory Castable Specifications
| Index | Fire clay | High alumina 1 | High alumina 2 | |
| Al2O3 % | 40-45 | 60-65 | 70-75 | |
| SiO2 % | 35-40 | 23-30 | 15-20 | |
| CaO % | 5-6 | 5-6 | 5-6 | |
| Bulk density g/cm3 | 110°C,24h | 2.0-2.1 | 2.4-2.5 | 2.7-2.8 |
| 1350°C,3h | 2.1-2.15 | 2.5-2.6 | 2.7-2.85 | |
| Bending Strength MPa | 110°C,24h | 4.5-6 | 5-6 | 5.5-6 |
| 1350°C,3h | 6-7 | 6.5-7.5 | 7-8 | |
| Compressive strength MPa | 110°C,24h | 30-35 | 40-45 | 45-50 |
| 1350°C,3h | 45-50 | 50-60 | 55-65 | |
| 1350°C Reheating linear change % | +(0.1-0.3) | -(0.1-0.3) | -(0.1-0.5) | |
| water content to mixture % | 10-12 | 10-12 | 10-12 | |
| Service temperature °C | 1350 | 1450 | 1550 | |
Application of Fire Clay Refractory Castable
Fireclay refractory castables are mainly used in the lining of steel rolling heating furnace, heat treatment furnace,boiler, shaft kiln, preheating zone of rotary kiln. Also refractory fire clay castable is widely used in various kinds of kiln lining. such as boiler, blast furnace hot blast stove, heating furnace, ceramic kiln, cement rotary kiln,power plant wall.
Fire Clay Refractory Castable Manufacturer from RS Refractory Factory
RS refractory factory as a professional fireclay refractory castables manufacturer in china, have many competitive advantages in the market. if you have demand of fireclay refractory castable, or have some questions on fire clay refractory castables about physical and chemical indicators, please contact us for free, we will provide you with high quality fire clay refractory castable.