Why Choose Alumina Ceramic Sleeve Tube For High Voltage EV Fuse

Jun 30, 2025

Engineered for extreme electrical and thermal resilience, alumina ceramic sleeve Ceramic Bodys serve as critical insulation components in high-voltage electric vehicle (EV) fuses. These precision-machined Alumina Ceramic Sleeve Tube for High Voltage EV Fuse leverage alumina's exceptional dielectric strength (>20 kV/mm) and thermal conductivity (>25 W/m·K) to withstand rapid current surges and temperatures exceeding 1,500°C during Ceramic Body operation. By preventing arc flashover and thermal degradation, they ensure reliable circuit protection in EV battery packs, charging systems, and power electronics-directly contributing to vehicle safety and longevity.

 

Ceramic Body for Auto Fuses

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Production process

 

 

Raw Material Preparation

Select high - purity alumina powder as the main raw material, which is the key to ensure the performance of the ceramic tube. The Electrical Alumina Ceramic Fused Body starts to take shape at this stage. The powder is carefully measured and mixed with appropriate additives to improve its formability and sintering properties.

Forming

Use advanced forming techniques such as isostatic pressing or injection molding. Isostatic pressing can ensure uniform density distribution of the ceramic body, while injection molding is suitable for mass - production with complex shapes. For example, in the case of creating the Fuse Ceramic for high - voltage applications, the precise shape of the sleeve tube is formed during this step.

Sintering

Place the formed green body in a high - temperature furnace for sintering. The sintering temperature and time are strictly controlled to achieve the desired density, hardness, and electrical insulation properties. The Fuse Ceramic Body for Bussmann, which has specific performance requirements, needs accurate sintering parameters.

Finishing

After sintering, the ceramic tube undergoes finishing processes such as grinding and polishing to meet the dimensional accuracy and surface roughness requirements. This step is crucial for the Ceramic Body for Auto Fuses, as it ensures a proper fit and reliable performance.

 

Fuse Ceramic Body for Bussmann

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Product features

 

 

1. Material: The main material is high - purity alumina ceramic, which provides excellent electrical insulation, high mechanical strength, and good thermal stability.

2. Dimensions: The standard outer diameter, inner diameter, and length are precisely defined according to industry requirements. For example, the outer diameter may range from a few millimeters to tens of millimeters, depending on the application.

3. Electrical Properties: High dielectric strength, low dielectric loss, and good arc - extinguishing ability are essential electrical properties. These properties are crucial for high - voltage EV fuses to ensure safe and reliable operation.

4. Thermal Properties: It should have a low coefficient of thermal expansion and high thermal conductivity to withstand high - temperature environments without cracking or deformation.

 

Type Summary

 

 

1. Low - Voltage Types: Designed for relatively low - voltage EV applications, these Ceramic Bodys have smaller dimensions and lower dielectric strength requirements. They are often used in auxiliary circuits of electric vehicles.

 

2. High - Voltage Types: For high - voltage main circuits in EVs, these Ceramic Bodys have larger dimensions and higher dielectric strength. They can withstand high - voltage surges and ensure the safety of the electrical system.

 

3. Special - Purpose Types: Some Ceramic Bodys are designed for special applications, such as those with enhanced mechanical strength for harsh operating conditions or those with specific electrical properties for unique circuit designs.

 

4. Custom - Made Types: We can also produce custom - made alumina ceramic sleeve tubes according to customers' specific requirements, including non - standard dimensions, electrical properties, and shapes.

 

Detailed Display

 

 

1. Appearance: The alumina ceramic sleeve tube has a smooth and uniform surface, with no visible cracks, pores, or other defects. Its color is usually white or off - white, which is a characteristic of high - purity alumina ceramic.

 

2. Internal Structure: Under a microscope, the dense and uniform internal structure can be observed, which is the basis for its excellent performance. The uniform distribution of alumina grains ensures consistent electrical and mechanical properties.

 

3. Performance Testing Results: We conduct a series of performance tests, including electrical insulation tests, mechanical strength tests, and thermal performance tests. The test results are available for customers to review, demonstrating the high quality of our products.

 

4. Comparison with Competitors: Compared with similar products in the market, our alumina ceramic sleeve tubes have better performance in terms of electrical insulation, mechanical strength, and thermal stability. We use advanced production technology and high - quality raw materials to ensure product superiority.

 

Fuse Ceramic

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Metal Parts for Relays

 

 

1. Full - Range Production: We can produce all the metal parts required for relays, including contacts, springs, and frames. These metal parts are made of high - quality metals with excellent electrical conductivity and mechanical properties.

2. Precision Manufacturing: Using advanced machining and stamping techniques, we ensure the high precision and dimensional accuracy of the metal parts. This is crucial for the reliable operation of relays.

3. Compatibility: The metal parts we produce are highly compatible with our alumina ceramic sleeve tubes, which can be used together in high - voltage EV fuse and relay systems to improve overall performance.

4. Quality Assurance: Strict quality control measures are implemented during the production process of metal parts to ensure their quality and reliability.

 

Products application

 

 

High - Voltage EV Fuses

The alumina ceramic sleeve tube is mainly used in high - voltage EV fuses to provide electrical insulation and arc - extinguishing functions. It protects the electrical system of electric vehicles from over - current and short - circuit faults.

Relay Systems

Combined with the metal parts we produce, it can be used in relay systems to control the on - off of electrical circuits. The excellent electrical and mechanical properties of the ceramic tube ensure the stable operation of relays.

Other Electrical Equipment

It can also be used in other high - voltage electrical equipment, such as power distribution cabinets and transformers, to improve insulation performance and safety.

Automotive Electronics

In the automotive electronics field, the Ceramic Body for Auto Fuses made from our alumina ceramic sleeve fuses plays an important role in protecting various electrical components.

 

Application and Production Technologies of Ceramic Body

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

contact us

 

 

Ms. Tina from Xiamen Apollo

 

You Might Also Like