Factors affecting alumina ceramic tubes

19-05-2021

Factors affecting alumina ceramic tubes 

alumina ceramic

Influence of molding method

Production practice and a large number of studies show that: low porosity, high density alumina ceramics have excellent structural properties. High density means that the crystal grains in the ceramic body are tightly arranged, and it is not easy to form destructive breakthrough points when subjected to external loads or corrosive substances.

To obtain a high-density ceramic body, the molding method is the key. The forming of alumina ceramic tube generally adopts methods such as dry pressing, isostatic pressing, and hot die casting. Different methods have different characteristics and have different effects on the sintering performance and microstructure of alumina ceramics.

Generally, grouting or hot die-casting processes are mainly used for products with complex shapes, and dry pressing can be used for products with simple shapes.

Operating Temperature: 

The wear amount of alumina ceramics is largely dependent on the operating temperature. Alumina ceramics exhibit excellent performance at high temperatures, but prolonged exposure to extreme heat may gradually degrade the material. Adhering to recommended temperature limits helps maximize the lifespan of the product.

Mechanical Stress:

 Alumina ceramics are known for their high strength, but excessive mechanical stress can lead to wear and tear. Proper handling and maintenance procedures should be followed to minimize the impact of mechanical stress on the material.

Contact with Abrasive Materials: 

Alumina ceramics exhibit excellent resistance to many corrosive substances. However, frequent exposure to abrasive materials, such as certain chemicals or solid particles, can gradually erode the surface. Implementing protective measures or utilizing alternative materials in highly abrasive environments can help preserve the longevity of the alumina ceramic tube.



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