Wear-Resistant Ceramic Composite Pipes: Types, Advantages, and Performance Comparison

Wear-resistant ceramic composite pipes, also known as steel pipes lined with wear-resistant ceramics, involve the embedding of wear-resistant ceramics on the inner walls of steel pipes. The numerous advantages of wear-resistant ceramic composite pipes stem from leveraging the high strength, good toughness, impact resistance, and excellent welding performance of steel pipes. Coupled with the high hardness, wear resistance, corrosion resistance, and heat resistance of alumina ceramics, these pipes overcome the shortcomings of low hardness in steel pipes and poor wear resistance and toughness in ceramics, creating a synergistic and optimized solution.

Advantages of Wear-Resistant Ceramic Composite Pipes

1. Excellent Wear Resistance:

• The inner lining of the composite pipe is made of alumina ceramics (a-AL2O3) with a Mohs hardness of 9.0, equivalent to HRC90 or above. This ensures high wear resistance for conveying abrasive materials in industries like metallurgy, power, mining, and coal.

2. Low Operating Resistance:

• The smooth inner surface of ceramic composite pipes results in low operating resistance. Tests on surface roughness and water resistance coefficient reveal superior smoothness compared to any metal pipe, with a resistance coefficient of 0.0193, slightly lower than seamless pipes.

3. Corrosion Resistance and Scale Prevention:

• The ceramic lining, composed of (AL2O3), exhibits neutral characteristics, making it resistant to acid, alkali, seawater corrosion, and possessing scale prevention properties.

4. Good Temperature and Thermal Shock Resistance:

• The inner lining of the composite pipe, made of alumina ceramics (AL2O3), maintains stability in a single crystalline structure, enabling prolonged normal operation in the temperature range of -50 to 500℃. The material demonstrates excellent thermal stability.

5. Cost-Effective Engineering:

• Lightweight design and reasonable pricing make wear-resistant ceramic composite pipes a cost-effective solution.

6. Convenient Installation and Construction:

• The lightweight nature and excellent welding properties of wear-resistant ceramic composite pipes allow for easy installation using welding, flanges, quick connections, reducing overall installation costs.

Comparison of Different Types of Wear-Resistant Ceramic Composite Pipes

1. Tile-Type Wear-Resistant Ceramic Composite Pipes:

• Advantages: Simple production process, short production cycle, and relatively low cost.

• Disadvantages: Requires careful protection during installation and transportation to prevent ceramic detachment due to impact.

2. Spot-Welded Card-Style Wear-Resistant Ceramic Composite Pipes:

• Advantages: Can withstand temperatures around 750°C, suitable for large-diameter dust collection pipes, long service life, corrosion resistance, and wear resistance.

• Disadvantages: Complex production process, longer production cycle, and higher cost.

3. Monolithically Formed Wear-Resistant Ceramic Composite Pipes:

• Advantages: Smooth inner wall, good sealing, high-temperature resistance, long service life, excellent wear and corrosion resistance.

• Disadvantages: Longer production cycle, higher cost.

4. Self-Propagating Composite Ceramic Wear-Resistant Pipes:

• Advantages: Simple production process, short production cycle, and relatively low cost.

• Disadvantages: Internal joints may have gaps, even with repairs using refractory mud after sintering, resulting in roughness and potential long-term usage risks.

Industries can choose wear-resistant ceramic pipes based on their specific production needs, considering factors like cost-effectiveness, technical specifications, and Sanxin's ability to customize various models according to customer requirements.

Download