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SiC impeller for chemical adnd metallurgy industry

Reaction sintered Silicon carbide vane

Design features:

1.High abrasion resistance, high surface accuracy
2.Excellent corrosion resitance, high hardness
3.Antioxidant with long service life
4.Non-blocking structure
5. High temperature resistance
6. Slip Casting, may be made into various shapes

Inquiry

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1. Scope of Application of Silicon Carbide (SiC) Impellers

Silicon carbide impellers are widely used in various industrial fields due to their superior material properties, particularly excelling in harsh operating conditions. Below is a detailed analysis of their applications and advantages.

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I. Application Scope of Silicon Carbide Impellers

1. Chemical Industry

   • Used for transporting highly corrosive media such as strong acids (e.g., hydrochloric acid, sulfuric acid), alkalis, and salt solutions, replacing traditional metal impellers to reduce corrosion damage.

   • Suitable for chemical process pumps, centrifugal pumps, and other equipment.

2. Mining & Metallurgy Industry

   • Used in slurry pumps and ore transport pumps to handle highly abrasive media (e.g., ore particles, slag).

   • Ideal for low-specific-speed pumps (low flow, high head) to minimize impeller wear.

3. Environmental Protection & Wastewater Treatment

   • Suitable for wastewater treatment and exhaust gas scrubbing systems, resistant to corrosive chemicals and abrasive particles.

4. Semiconductor & Electronics Industry

   • Used in ultrapure water transport and chemical mechanical polishing (CMP) equipment to avoid metal contamination.

5. Aerospace & High-Temperature Applications

   • Used in auxiliary aircraft engine systems and high-temperature gas circulation equipment, capable of withstanding extreme temperatures (up to 1600°C).

6. Energy & Power Industry

   • Suitable for coal-fired power plant desulfurization pumps and nuclear power plant cooling systems, offering corrosion and high-temperature resistance.

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II. Advantages of Silicon Carbide Impellers

1. Exceptional Corrosion Resistance

   • Resistant to strong acids, alkalis, and oxidizing agents, far outperforming stainless steel and other metals.

2. Superior Wear Resistance

   • Hardness close to diamond (Mohs 9.5), suitable for high-wear conditions (e.g., ore slurry transport), with a lifespan 5-10 times longer than metal impellers.

3. High-Temperature Stability

   • Maintains mechanical properties at temperatures up to 1600°C, ideal for high-temperature fluid transport.

4. Lightweight Design

   • Lower density (~3.1 g/cm³) than metals, reducing rotational inertia and improving energy efficiency.

5. Low Thermal Expansion Coefficient

   • Excellent thermal shock resistance, suitable for environments with rapid temperature changes.

6. Structural Innovations for Enhanced Reliability

   • New designs (e.g., split-type assembly, hollow structures) improve impact resistance and production yield for large impellers.

   • Some patented technologies use metal inserts to enhance connection strength, preventing ceramic-metal interface failure.

7. Energy Saving & Emission Reduction

   • Reduces frequent replacements due to wear, lowering maintenance costs and aligning with green manufacturing trends.

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