95% Alumina Ceramic Insulators High-voltage Alumina Ceramic Insulating Rings and Tubes

Alumina ceramic insulating tubes and rings are tubular insulating components made from industrial alumina (Al₂O₃) ceramic. They are essential components in the electrical, electronics, and high-temperature industries.

The alumina content typically ranges from 95% to 99.9%, with higher purity typically resulting in improved electrical properties and high-temperature resistance. They are designed to isolate live components and prevent current leakage. Their core function is to provide reliable electrical insulation and structural support under extreme conditions, while also withstanding mechanical loads and harsh environments.

Material Purity Options:

• 95%-96% Alumina: Suitable for most high-temperature, wear-resistant, and general insulation industrial applications, offering the best value.
• 99%-99.5% Alumina: Used in demanding applications such as high-frequency, high-voltage, high-vacuum, and semiconductors, offering superior performance but a higher price.

When your application requires comprehensive insulation performance, temperature resistance, structural strength, and environmental durability, alumina ceramic insulating tubing is often the most reliable and professional choice.

It's more than just an insulator; it's a critical cornerstone for ensuring safe, stable, and long-term operation of equipment in high-end fields like power generation, semiconductor manufacturing, and scientific experiments.

The value of alumina ceramic insulating tubes and rings stems from a series of exceptional properties:

1. Extremely High Electrical Dielectric Strength

• Performance: They possess extremely high resistivity (>10^14 Ω·cm) and dielectric strength (15-25 kV/mm) at both room and high temperatures.
• Value: They effectively block high-voltage currents, preventing breakdown and leakage, making them an ideal high-voltage insulation material.

2. Excellent Mechanical Strength

• Performance: They offer extremely high compressive strength (>2000 MPa), capable of withstanding enormous pressures.
• Value: They are ideally suited for use as supports, maintaining structural integrity while withstanding high pressures.

3. Excellent High-Temperature Resistance

• Performance: They can operate for extended periods at temperatures of 1500°C to 1600°C without melting, oxidation, or deformation.
• Value: They are used in high-temperature electric furnaces, vacuum furnaces, and other equipment, with performance far exceeding that of organic insulating materials.

4. Excellent Chemical Stability

• Performance: They are highly resistant to most acids, alkalis, and organic solvents. 
• Value: Suitable for corrosive environments, it won't corrode like metal.

5. Low Dielectric Loss

• Performance: Minimal energy loss in high-frequency electric fields.
• Value: Suitable for high-frequency and radio frequency applications, such as vacuum electronics.

Alumina ceramic insulating tubes and rings are the "silent guardians" of high-end equipment. Their primary applications include:

1. Power Transmission and Distribution and Energy Equipment

Applications: High-voltage insulators, vacuum circuit breakers, switchgear, and transformer bushings.
Purpose: Serves as mechanical support and electrical isolation for live parts, ensuring safe distances and preventing arcing.

2. Semiconductor and Electronics Manufacturing

Applications: Diffusion furnace tubes, CVD equipment process chambers, and ion implanters.
Purpose: Provides an ultra-high-purity insulating environment in chip manufacturing, preventing metal contamination and resisting plasma erosion.

3. High-Temperature Heat Treatment and Sintering Industry

Applications: High-temperature furnace tubes (atmosphere furnaces, vacuum furnaces), thermocouple protection sleeves, and sintering furnace supports.
Purpose: Serves as the furnace chamber, supports workpieces, protects thermocouples, and accurately measures high temperatures.

4. Vacuum and High-Energy Physics Equipment

Applications: Particle accelerator beam tubes, vacuum feedthroughs, and ionization gauge tubes.
Purpose: Provides high-vacuum sealing and high-voltage insulation while also withstanding radiation.

5. Laser and Lighting Technology

Applications: High-power laser discharge tubes, high-pressure sodium lamp arc tubes.
Purpose: Withstands high temperatures and corrosive atmospheres while maintaining insulation.