Silicon Carbide Wear Resistant Refractory Plastic

      Silicon carbide wear resistant refractory plastic is a SiC-based refractory material with a silicon carbide content ranging from 72% to 99%. Generally, black silicon carbide (with SiC content above 96%) is selected as the main raw material. With or without a binder, the product is manufactured through processes such as proportioning, mixing, forming, and firing.

      Silicon carbide itself has high hardness, a low wear rate, and excellent thermal shock resistance. Under conditions of high-velocity material erosion, particle impact, and dust-laden airflow, it can effectively slow the wear rate of the furnace lining surface. At the same time, its plastic structure allows the material to fill small gaps and complex areas more easily during installation, preventing early damage caused by insufficient vibration or loose compaction.

      Our factory specializes in the production of silicon carbide wear resistant refractory plastics. The main characteristics include high strength and excellent resistance to erosion by solid particles and liquid slag. By adding high-hardness and corrosion-resistant agents to the ramming mix, erosion of the furnace lining by alkaline substances is significantly reduced. The material also has good slag-coating properties, allowing a thin layer of liquid slag to adhere to the lining surface and form a protective slag film. In addition, it features a low coefficient of thermal expansion and good thermal shock resistance. With its high SiC content and good thermal conductivity, it facilitates heat transfer and is suitable for applications such as circulating fluidized bed boilers and chemical industry kilns.
 

 

● Excellent high-temperature wear resistance

The material features a dense crystalline structure and high hardness, enabling it to resist material erosion and friction loss under high-temperature conditions, effectively extending the service life of equipment.

● Strong corrosion resistance

It exhibits excellent resistance to corrosion from acidic and alkaline slags as well as high-temperature flue gases. It is not prone to chemical reactions that could cause structural spalling and performs reliably in complex and harsh high-temperature environments.

● High-temperature strength

The material maintains stable mechanical properties even at elevated temperatures. It does not easily soften or deform with increasing temperature and can withstand external loads during equipment operation.

● Good thermal shock resistance

It resists cracking or breakage under rapid temperature changes and adapts well to high-temperature equipment operating conditions with frequent start-stop cycles, ensuring excellent structural stability.

● High thermal conductivity

Its high thermal conductivity allows efficient heat transfer, helping to dissipate localized heat accumulation within equipment and preventing structural damage caused by excessive temperature differences.

● Low coefficient of thermal expansion

The material experiences minimal volume change during temperature fluctuations, reducing stress between the material and the equipment substrate and preventing cracking or detachment caused by thermal expansion and contraction.

      Silicon carbide wear resistant refractory plastic is commonly used in areas where traditional castables are difficult to apply or where rapid repair is required.

Pre-Construction Preparation

●Clean the construction surface to ensure it is free of oil, dust, and loose debris, and keep the surface dry and clean.

●Mix the material according to the specified ratio until it becomes uniform, lump-free, and reaches a plastic state.

●The mixed material should be used immediately to avoid performance degradation caused by prolonged storage.

Application and Tamping

●Apply the material manually or with a special tamping tool in layers.
●The thickness of each layer should be controlled at 50–80 mm.
●Each layer must be tamped thoroughly to remove trapped air and prevent air pockets.
●Corners and edges should be compacted and rounded to improve the overall structural integrity.

Curing and Baking

●Cure at room temperature for 24–48 hours, avoiding rain, direct sunlight, and mechanical impact.
●Follow a controlled heating curve during baking. In the low-temperature stage (≤200 °C), moisture should be removed slowly.
●During the high-temperature stage (200–800 °C), heating should proceed at a uniform rate. Rapid heating or cooling must be strictly avoided to ensure optimal material performance.

Q1: How should I choose between silicon carbide wear-resistant refractory plastic and wear-resistant castables?
A: Refractory plastic is more suitable for complex structures, irregularly shaped areas, or situations requiring rapid repair. Wear-resistant castables are generally preferred for large-area monolithic linings.

Q2: Does this product require water during installation?
A: No. It is a ready-to-use material, and no additional water should be added.

Q3: Does wear resistance decrease at high temperatures?
A: Within the specified design temperature range, the material maintains stable wear resistance.

Q4: Is it suitable for long-term continuous operation?
A: Yes. Under proper installation and operating conditions, it can maintain stable performance during long-term continuous operation.

Q5: What are the storage conditions for the product?
A: The product should be stored in a dry and well-ventilated environment, protected from moisture and rain. The recommended shelf life is 6 months.

Q6: What precautions should be taken during installation?
A: Before installation, the equipment surface must be thoroughly cleaned. During installation, ensure the material is evenly applied and properly compacted. After construction, follow the specified curing procedures. Detailed instructions are provided in our installation guidelines.

Q7: Do you offer customized production services?
A: Yes. We can customize product composition and performance according to customers' specific requirements.

Q8: How do you ensure consistent product quality?
A: We implement a comprehensive quality control system, with strict inspection at every stage-from raw material procurement and production to final product testing-to ensure stable and consistent quality.

Q9: What should we do if problems occur during product use?
A: Customers can contact our after-sales service team at any time. We will respond within 24 hours, provide technical solutions based on the specific issue, and arrange on-site technical support if necessary.

Q10: Do you support OEM/ODM cooperation?
A: Yes. We fully support OEM and ODM cooperation and can provide flexible solutions ranging from product customization to full-chain service support based on customer needs.

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