Silicon carbide ceramic threaded sleeve

Ⅰ.

Product Introduction of Silicon Carbide Ceramic Threaded Sleeves:

Silicon carbide ceramic threaded sleeves are high-performance ceramic products with the following significant characteristics:

1. High hardness and strength: Mohs hardness of approximately 9.2-9.6, second only to diamond; flexural strength of 400-600 MPa; compressive strength exceeding 2000 MPa.

2. Excellent wear resistance: Low friction coefficient and self-lubricating properties; wear rate is only 1/10 of traditional metal materials.

3. High-temperature resistance: Can operate stably in environments up to 1600°C; melting point is approximately 2730°C.

4. Chemical stability: Good corrosion resistance to strong acids, strong bases, and other chemical media.

5. Low thermal expansion coefficient: Approximately 4.0×10⁻⁶/°C, resulting in high dimensional stability at high temperatures.

Ⅱ.

Manufacturing Process

Silicon carbide ceramic threaded sleeves are mainly prepared through the following processes:

1. Hot pressing sintering: Material densification is achieved under high temperature and high pressure, resulting in high product density but requiring complex equipment.

2. Pressureless sintering: Divided into solid-phase and liquid-phase sintering, the latter allows for densification at lower temperatures.

3. Reaction sintering: Utilizes the high-temperature reaction between silicon carbide powder and carbon-containing materials; the sintering temperature is low but cracking is prone to occur.

4. Precision machining:  Employs a "progressive tapping" process, with feed rate controlled at the micron level to prevent material chipping.

Ⅲ.Product Features

1. Adaptability to Special Environments:  Can operate stably in a wide temperature range from -50℃ to 1600℃.

2. Long Service Life:  Wear resistance is 5-10 times that of metal, resulting in low maintenance costs.

3. High Precision Retention:  Minimal thermal deformation, suitable for precision equipment assembly.

4. Chemical Inertness: Does not react with most chemical substances, ensuring media purity.

5. Lightweight: Density is only 40% of steel, suitable for applications requiring weight reduction.

Ⅳ.Application Fields

1. Aerospace: Engine hot section components, turbine blades, etc.

2. Energy Sector: Nuclear reactor cladding materials, solar thermal power generation systems.

3. Semiconductor Manufacturing: Heating elements and reaction chamber linings in wafer processing.

4. Chemical Equipment: Corrosion-resistant valves, pipes, and pump bodies.

5. Mechanical Manufacturing: High-precision bearings, seals, and wear-resistant components.

Supports custom specifications.