Zirconia ceramic, a high-performance ceramic material, has been widely used in machinery, electronics, chemical industry, aerospace and other fields because of its excellent high temperature resistance, corrosion resistance, wear resistance and other characteristics. This article will focus on its manufacturing process and characteristics.
First of all, the manufacturing process of zirconia ceramics mainly includes batching, molding, sintering, processing and other links.
In the batching process, the main raw material is zirconia ceramic powder. According to the required performance, ceramic powders with different particle size, purity and crystallinity can be selected. In addition, an appropriate amount of auxiliary materials such as binders and plasticizers need to be added to help shape and adjust the performance.
Molding is one of the keys to the manufacturing process. Commonly used molding methods include dry press molding, isostatic press molding, injection molding, etc. Dry and isostatic press molding are suitable for manufacturing ceramic parts with simple shapes, while injection molding is suitable for manufacturing precision parts with complex shapes.
The sintering process is an important part of the manufacturing process. During the sintering process, the organic matter in the green ceramic billet is burned off, and the ceramic particles are gradually densified, forming zirconia ceramics with excellent properties. The sintering temperature and time need to be determined according to the raw material and product performance requirements.
Finally, the sintered ceramic rods are processed to achieve the desired shape and size. The processing links include turning, milling, drilling, etc. The processed zirconia ceramics can obtain high-precision, high-finish surface and dimensional accuracy.
Secondly, the characteristics of zirconia ceramics are as follows:
1.High temperature resistance: It has a high melting point and can maintain excellent performance at high temperatures.
2.Corrosion resistance: It has good stability to most acids, alkalis, salts and other chemicals, and is not easy to be corroded.
3.Abrasion resistance: It has high hardness and high wear resistance, and can maintain shape and dimensional accuracy for a long time.
4.Electrical insulation: Zirconia ceramics are an excellent electrical insulating material that can be used to manufacture electronic components and mechanical parts.
5.Light weight: The density is low, and it has a lighter weight than metal materials, which is easy to install and use.
In conclusion, zirconia ceramics play an important role in many fields due to their unique manufacturing process and excellent performance. With the continuous development of science and technology, it is believed that the application range of zirconia ceramics will be more extensive.