High thermal conductivity industrial alumina ceramic sleeve

Overview of Alumina Ceramic Sleeve

Alumina ceramic Sleeve is a tubular component made of high-performance ceramic material. It is made of high-purity alumina as raw material and sintered at high temperatures. It has extremely high hardness, good wear resistance, corrosion resistance and electrical insulation. Alumina ceramic Sleeve has strong chemical stability and can maintain its performance in harsh environments. It is widely used in electronics, machinery, chemical industry and other fields, such as insulating Sleeves, wear-resistant parts, etc., and is an indispensable material in modern industry.

Features of Alumina Ceramic Sleeve

Alumina ceramic Sleeves and alumina Sleeves are essentially products made of the same material, but they are different in name. They both have many excellent properties. First of all, the hardness of alumina ceramic Sleeves and alumina Sleeves is extremely high, second only to diamond, which makes them excellent in wear resistance and can remain stable under long-term friction conditions.

At the same time, alumina ceramic Sleeves and alumina Sleeves have good chemical stability and strong corrosion resistance, and can resist the erosion of various acid and alkali chemical media. In addition, they also have good electrical insulation and can be used as reliable insulating components in electrical environments such as high voltage.

Moreover, alumina ceramic Sleeves and alumina Sleeves have good thermal stability, can maintain the stability of size and performance in a wide temperature range, and are not easily deformed due to thermal expansion and contraction. These characteristics make alumina ceramic Sleeves widely used in many fields such as electronics, machinery, and chemical industry, such as insulation protection of electronic components, wear-resistant parts in mechanical transmission, etc., providing important material support for the development of modern industry.

Specifications table of Alumina Ceramic Sleeve

Parameter	Specification
Material	High-purity alumina ceramic (Al₂O₃)
Purity	≥99.5%
Density	3.95-4.00 g/cm³
Hardness (Vickers)	≥1800 HV
Flexural Strength	≥350 MPa
Compressive Strength	≥2500 MPa
Dielectric Strength	≥15 kV/mm (at 25°C)
Dielectric Constant	8.5-9.5 (at 1 MHz, 25°C)
Volume Resistivity	≥10¹⁶ Ω·cm (at 25°C)
Thermal Conductivity	20-30 W/(m·K) (at 25°C)
Coefficient of Thermal Expansion	7.5-8.0 x 10⁻⁶/°C (20-1000°C)
Operating Temperature Range	-50°C to 1800°C (depending on grade)
Surface Finish	±0.1 mm (or as specified)
Tolerance	±0.05 mm (or as specified)
Corrosion Resistance	Excellent resistance to most acids and alkalis (except hydrofluoric acid)
Color	White (natural color of alumina ceramic)
Customization	Available (length, diameter, and other dimensions can be tailored to requirements)

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Applications of Alumina Ceramic Sleeve

Alumina ceramic Sleeves and alumina Sleeves have a wide range of applications in the industrial field. They are used in a variety of scenarios with their excellent performance. In the electronics field, alumina ceramic Sleeves and alumina Sleeves are often used as insulating Sleeves to protect electronic components from the external environment while preventing current leakage and ensuring the stable operation of the circuit.

In mechanical manufacturing, alumina ceramic Sleeves can be used to manufacture wear-resistant parts such as bearing sleeves, sealing rings, etc. Their high hardness and wear resistance enable them to work stably for a long time in a high-load, high-friction environment, reducing wear and replacement frequency.

In the chemical industry, the corrosion resistance of alumina ceramic Sleeves and alumina Sleeves makes them ideal pipe lining materials, which can resist the erosion of chemical media such as strong acids and alkalis and extend the service life of equipment.

In addition, alumina ceramic Sleeves are also used in aerospace, automobile manufacturing and other fields. As protective sleeves or thermal insulation materials for high-temperature components, their good thermal stability and high-temperature resistance can meet the stringent requirements of these fields for materials. In short, alumina ceramic Sleeves and alumina Sleeves play an important role in many industries with their diverse excellent properties, providing important support for the development of modern industry.

Company Profile

RBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. The company exports to many countries, such as the USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Cameroon, Uganda, Turkey, Mexico, Azerbaijan, Belgium, Cyprus, Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia, Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are interested, please send an email to sales1@rboschco.com

Payment Term

T/T, Western Union, Paypal, Credit Card etc.

Shipment Term

By air, by sea, by express, as customers request.

5 FAQs of Alumina Ceramic Sleeve

Q1:What are the advantages of alumina ceramic sleeves in lithium battery material delivery systems?

In recent years, 95% alumina ceramic sleeves have been widely used in lithium battery material delivery systems, mainly because of their better inner and outer tube material purity, higher wear resistance, corrosion resistance, impact resistance and high-temperature resistance, and smaller pipeline flatness, which can effectively improve the efficiency and safety of lithium battery material delivery and extend the service life of the delivery system.

Q2:How to choose a suitable alumina ceramic sleeve?

Consider the working temperature: Select alumina ceramic sleeves with appropriate purity and specifications according to the temperature conditions in actual applications to meet the use requirements in high-temperature environments.

Evaluate corrosion resistance requirements: For the corrosive substances in the conveyed medium and working environment, select alumina ceramic sleeves with corresponding corrosion resistance to ensure their stability and reliability in corrosive environments.

Determine the size specifications: According to the size and design requirements of the pipeline system, select the appropriate outer diameter, inner diameter length and other size specifications to ensure good matching and installation convenience between the ceramic sleeve and the pipeline.

Pay attention to product quality: Choose alumina ceramic Sleeves produced by reputable and reliable manufacturers to ensure that the strength, hardness, wear resistance and other properties of the products meet the standard requirements, and pay attention to the surface quality, dimensional accuracy and defects of the products.

Q3:What is the service life of alumina ceramic Sleeves?

Under normal use and maintenance, the service life of alumina ceramic Sleeves is long, generally up to several years or even longer, which is mainly due to its high hardness, wear resistance, corrosion resistance and high-temperature resistance.

Q4:What is the cost-effectiveness of using alumina ceramic Sleeves?

Although the initial investment cost of alumina ceramic Sleeves is relatively high, due to its long service life, low maintenance cost and high reliability, it can provide users with significant cost benefits in the long run. It can reduce equipment downtime and maintenance work, improve production efficiency, and reduce safety risks and production losses caused by equipment failure. Therefore, it is widely used in many industrial fields.

Q5:How high a temperature can alumina ceramic Sleeve withstand?

Alumina ceramic Sleeve has excellent high-temperature resistance and can work stably for a long time in high-temperature environments. Generally, it can withstand temperatures up to 1650℃ in an oxidizing atmosphere or a reducing atmosphere and can even withstand high temperatures of 2000℃ in a vacuum environment.