Alumina ceramic part

Product Introduction

Alumina Ceramic Ring Properties:

The sintering temperature of alumina ceramic ring can be as high as 1650-1990 ℃. It can be made into molten glass instead of platinum crucible, and can be used to make lamp tubes by light transmittance and alkali metal corrosion resistance.

Alumina ceramic ring has excellent mechanical strength, high temperature resistance, wear resistance, corrosion resistance, good insulation performance and durability. It has the advantages of long life, energy saving, environmental protection, safety, controllability and so on.

Because of its excellent electrical function at high frequency, alumina ceramic ring has low dielectric loss, high volume resistivity, high strength, high hardness, small linear expansion coefficient, and good wear resistance and heat resistance. Alumina is used in 95% of the general economic occasions. Only 99% ~ 99.9% alumina ceramics are selected for special functional requirements.

Application of  Alumina Ceramic Ring :

Alumina Ceramic Ring are used in machinery manufacturing, aerospace, precision instruments, petrochemical, new light sources, textile machinery, electrical appliances, refrigeration equipment, electric heating instruments, instruments, chemical industry, communication, communication and other industries.

The disadvantages of alumina ceramic ring:

Generally, the elastic modulus is quite large, the hardness is high, the brittleness is large, and the crack sensitivity is strong. Therefore, the machining difficulty is mainly manifested in the machining hardness and processing brittleness. In general, the microstructure of alumina ceramics is equiaxed grains, which is composed of ionic bond or covalent bond. Therefore, the fracture toughness of alumina ceramics is low. The stress will make the ceramic surface produce fine cracks, and the cracks will rapidly expand and brittle fracture. Therefore, in the process of machining alumina ceramic ring, the phenomenon of chipping often occurs, that is, small cracks appear on the ceramic surface.

Performance For Industrial Ceramic

UnitSteatite ceramic95 Al2O396 Al2O3
Physical Characteristics Bulk densityg/cm32.73.63.6
Water absorption     %000
Mechanical CharacteristicsFlexural strengthMpa145320340
Hardness VickersGpa5.712.213.5
Elastic modulusGpa120280320
Poisson’s ratio-
Thermal Characteristics  Linear expansion coefficient(20-5000C)  10-6/℃
Thermal conductivityw/(m.k)2.51624
Specific Heat*10-3J/(kg*K)0.750.780.78
Electrical Characteristics  Dielectric constant(1MHZ)-6.299.4
Dielectric loss angle*10-418155
Dielectric strength*106V/m181215

Product Information

Company Advantages

Equipment:We have complete production line and testing equipment, including automatic production line.

Philosophy:With excellent quality, firt-class service, honest business

Quality:We have passed IS0 9001:2005. standard, stable,reliable

Group:We have our own team to research, design, produce and sell.

Certifications and Patents



Why us?  

* Professional manufacturer since 1997.
* Strict quality control on production process and tolerance.
* Free samples available
* Customized production based on your drawing or specification
* On-time delivery and reliable support and service
* Inventory available for quick shipment
* We keep confidentiality of all the drawings and business information between us.

Are you a trading company or a manufacturer?     

* We are a manufaturer. 

Can you provide the free samples?    

* Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.

Do you accept customized production based our specification?    

* Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t have a drawing, just tell us your idea, we will work out the drawing for you.

What's the delivery time?      

* 7 working days for standard products 30 days for customized products.

Liling Xing Tai Long Special Ceramic Co., Ltd 

Tel: +86 13975373343





Professional alumina ceramic part manufactures in china

Over 13years industry service

We’ve worked with many foreign customer

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The first thing we do is meeting with our clients and talk through their goals on a future project.
During this meeting, feel free to communicate your ideas and ask lots of questions.
They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.

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