Why does the color of alumina ceramics change?

Most ceramic products are basically white, and the color of alumina ceramics is of course the same. But for what reason, these ceramic products will turn from white castings to light yellow after a long time of use. Is it because the color of the alumina ceramics has changed? Of course not, the Pintejin Ceramics Factory will give you a detailed introduction. !Alumina ceramic rod

The reason why the color of alumina ceramics is white and gradually becomes light yellow is because the internal composition changes after sunlight exposure, and this change is irreversible, so the color will also change. On the other hand, it may be that the alumina ceramics deliquescence, resulting in the formation of hydrated alumina. In fact, not only ceramic products have this characteristic, but also other materials, so we can only overcome the phenomenon of discoloration of alumina ceramics by minimizing the influence of external factors. Regarding the color of alumina ceramics, in addition to clarifying the reasons behind its discoloration, it is also necessary to master some basic principles of using it to make shaft cores to ensure that the obtained products meet the requirements and can be used normally.

Alumina ceramic block After figuring out the reason for the color change of alumina, and considering that the alumina material is relatively special, it is necessary to be more careful when designing the ceramic shaft to reduce unnecessary damage. The main content involved mainly includes the type, size and position of the installed parts, the fixing method of the parts, the nature, direction, size and distribution of the load; the type and size of the alumina ceramic bearing; the blank, manufacture and distribution of the alumina ceramic shaft.

Assembly process, installation and transportation; deformation of the shaft and a series of factors. In a word, it must be designed according to the specific requirements of the alumina ceramic shaft, but on the premise of saving materials and reducing weight, try to use a cross-sectional shape with equal strength dimensions or a large cross-sectional coefficient; and adopt various types of stress concentration reduction. And structural measures to improve strength to further ensure product quality and performance.

Considering that the material is relatively special, it is necessary to be more careful when designing the alumina ceramic shaft core to reduce unnecessary damage. The main content involved mainly includes the type, size and position of the installed parts, the fixing method of the parts, the nature, direction, size and distribution of the load; the type and size of the alumina ceramic bearing; the blank, manufacture and distribution of the alumina ceramic shaft. Assembly process, installation and transportation; deformation of the shaft and a series of factors.

In a word, it must be designed according to the specific requirements of the alumina ceramic shaft, but on the premise of saving materials and reducing weight, try to use a cross-sectional shape with equal strength dimensions or a large cross-sectional coefficient; and adopt various types of stress concentration reduction. And structural measures to improve strength to further ensure product quality and performance.