Silicon carbide corundum refractory plastic features a scientifically designed particle size distribution, allowing the corundum aggregate to form a stable high-temperature skeletal structure while the wear-resistant silicon carbide phase is uniformly distributed throughout the material. This structure effectively disperses stress concentration caused by material erosion and particle impact, significantly reducing the wear rate.
During high-temperature operation, a dense sintered layer gradually forms within the material, further improving overall strength and erosion resistance. This ensures that the furnace lining remains stable even under complex and harsh operating conditions.
Silicon carbide corundum refractory plastic is a high-grade refractory material characterized by excellent wear resistance, strong adhesion, and a high service temperature of up to 1200°C. It is also widely recognized for its simple installation process, short construction period, and the fact that furnace drying is not required after application. In practical use, its service life is significantly longer than that of conventional wear-resistant refractory materials, making it suitable for industries such as power generation, metallurgy, steel, and ceramics.
The material is applied using a smearing and compacting method. Before installation, rigid anchor pins should be fixed at the required positions, with a mesh spacing of approximately 150–250 mm. During application, the plastic material is evenly applied to the required areas, and the thickness can be adjusted according to the design requirements of different furnace types.
|
Project |
Numerical value |
|
|
Fire resistance ℃ |
＞1790 |
|
|
Bulk density g/cm³ |
2.8 |
|
|
Compressive strength MPa |
110℃After baking |
＞90 |
|
800℃ |
＞95 |
|
|
1100℃ |
＞100 |
|
|
Flexural strength MPa |
110℃ After baking |
＞10 |
|
800℃ |
＞14 |
|
|
1100℃ |
＞14 |
|
|
Changes in reheated lines % |
0.3 |
|
|
Thermal shock stability Second-rate |
42 |
|
|
Operating temperature ℃ |
1400 |
|
|
Abrasion resistance cc |
≤6 |
|
●High Strength
The material has a dense internal structure and excellent mechanical strength after molding. It can withstand mechanical impact and load during long-term high-temperature operation and is not prone to cracking or spalling, thereby extending the service life of the equipment.
●Excellent High-Temperature Wear Resistance
The composite system of silicon carbide and corundum provides extremely high hardness and enables the material to maintain stable structural strength even at elevated temperatures.
●Good Corrosion Resistance
It effectively resists erosion caused by high-temperature airflow, molten materials, and chemical media, making it suitable for vulnerable and heavily worn areas of industrial kilns.
●Good Thermal Shock Resistance
The material has excellent resistance to rapid temperature changes and does not crack under thermal stress during rapid heating and cooling, ensuring structural integrity and reducing maintenance frequency.
●Acid and Alkali Resistance
It exhibits strong resistance to both acidic and alkaline environments and maintains stable chemical properties even under complex high-temperature conditions with alternating acid–alkali exposure.
●CO Erosion Resistance
In high-temperature CO-containing atmospheres, the material effectively resists reducing erosion caused by carbon monoxide, preventing problems such as pulverization and structural loosening. It is particularly suitable for working environments containing CO, such as cement rotary kilns and blast furnaces.
The laying and tamping of refractory plastic shall comply with the following requirements:
1. Laying Method
Plastic blanks shall be laid in a staggered and tightly packed arrangement and compacted layer by layer.
The thickness of each layer shall not exceed 60 mm. The next layer may only be applied after the previous layer has been completely compacted.
When loose plastic material is used, the thickness of each layer shall not exceed 100 mm.
2. Tamping Method
Tamping shall begin at the joints between plastic blanks. The hammering area shall overlap by approximately 2/3, and each row shall overlap by about 1/2. Tamping shall be repeated 3–4 times while moving forward gradually.
For furnace wall construction, the plastic shall be compacted continuously layer by layer. After each layer is compacted, the surface shall be roughened before applying the next layer. The tamped surface shall remain level.
During construction interruptions, the compacted surface shall be covered with plastic film.
3. Treatment of Construction Joints
If tamping is interrupted for an extended period, the construction joint should preferably be located at the centerline of the adjacent row of anchor bricks.
When construction resumes, the joint surface shall be roughened to a depth of 10–20 mm. If the surface is dry, it shall be lightly sprayed with water before continuing.
4. Thickness Control
The thickness of the rammed furnace wall shall generally be slightly greater than the design thickness:
6–8 mm thicker when formwork is used
About 20 mm thicker when no formwork is used
After construction, the surface shall be trimmed and the excess material shall be removed according to the design specifications.
●Compared with similar refractory materials, it offers higher refractoriness and greater high-temperature strength, allowing it to perform reliably in more demanding high-temperature environments.
●Thanks to its long service life and excellent wear and corrosion resistance, it reduces maintenance and replacement frequency, thereby lowering overall production costs.
●It offers excellent value for money. Considering both performance and lifespan, the overall cost of use is relatively low.
●It has a wide range of applications and is suitable for high-temperature lining in various industries and types of equipment.
●Advanced manufacturing processes and a rigorous quality control system ensure stable and consistent product quality.
●Metallurgical industry
Used for lining equipment such as blast furnaces, hot blast stoves, converters, and electric furnaces.
●Building materials industry
Widely used in equipment such as cement rotary kilns and glass melting furnaces.
●Chemical industry
Suitable for lining high-temperature equipment such as chemical reactors and pyrolysis furnaces.
●Power industry
Can be used for lining the high-temperature sections of boilers.
Q1: What are the storage conditions for the product?
A:The product should be stored in a dry, well-ventilated warehouse and kept away from moisture, rain, and heat sources. The shelf life is 12 months.
Q2: Do you provide installation guidance?
A:Yes, we provide professional installation guidance, including construction methods and important precautions.
Q3: Can the product be customized according to customer needs?
A:Yes, we can customize the product according to specific customer requirements, such as performance parameters and size specifications.
Q4: How can I obtain product samples?
A:Customers can request samples from us. We provide samples free of charge, but the shipping cost will be covered by the customer.
Q5: Do you support OEM/ODM cooperation?
A:Yes, we fully support OEM and ODM cooperation and can provide flexible solutions, from product customization to complete service support, based on customer requirements.
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