Zirconia ceramic processing refers to the process of precision machining of non-metallic materials containing zirconia. Zirconia ceramics have the characteristics of high strength, high hardness, high toughness, wear resistance, and can resist the erosion of high temperature environment. With the continuous innovation and development of zirconia ceramics, more and more domestic enterprises are keen to use this new ceramic material, which has been widely used in our work and life. Zirconia ceramics are mainly divided into high-purity zirconia ceramics and ordinary zirconia ceramics. Many friends don't know much about zirconia ceramics. Let's briefly introduce them. What are the processing methods and types of zirconia ceramics?
In the process of zirconia ceramic processing, the content of high-purity zirconia ceramic raw materials can be close to 100%. Due to the very high purity and precision, zirconia has a sintering temperature of nearly 2,000 degrees Celsius. Generally, in the production process, it will be melted at high temperature. Glass replaces platinum crucible. Its light transmittance is very high, and it can resist the corrosion of alkali metals. Because of its corrosion resistance, it is used in the field of sodium lamps due to such advantages. In addition, in the medical field, it is generally used in medical dentistry and used as ceramic porcelain teeth.
The content of zirconia in ordinary zirconia ceramics is much lower than that of high-purity zirconia ceramics, and the general content is between 80% and 90%. Although the content of ordinary zirconia is lower, it also has certain characteristics of insulation, wear resistance and corrosion resistance, and can also resist acid and alkali corrosion of a certain strength. There are certain restrictions, which depends on what kind of zirconia ceramics the specific production and processing environment requires. Like a general production environment, there is absolutely no problem in applying ordinary zirconia ceramics. Of course, it can only be used after passing the test.
The processing of zirconia ceramics is generally divided into dry pressing and grouting. The production process of dry pressing is more complicated and requires hydraulic equipment or mechanical equipment. The molding can be semi-automated and fully automated. The hydraulic method is more mature than mechanical processing, and the quality is better. The production process is easier to control, and the manufacturing process is more Mature and advanced. Gypsum grinding tool is used for grouting molding, and zirconia slurry is injected into it. In the production process, a binder needs to be added. After sufficient grinding, the exhaust gas is exhausted, and then poured into the gypsum mold to obtain a processed and formed product.