What are the technical difficulties of ceramic grinding processes?

Zirconia ceramic is in the plane grinding processing is more commonly used in processing, in order to meet consumer demand, the zirconia ceramic grinding machine, zirconia ceramic products for plane grinding and polishing.

There are three crystalline forms of zirconia ceramics: monoclinic zirconia, tetragonal zirconia and cubic zirconia, and these three forms are interchanged with each other as the temperature changes.

During the grinding movement, we are familiar with the fact that the temperature of the workpiece rises gradually as the grinding disc and the workpiece rub against each other, and that the workpiece cools down gradually when the grinding is completed, and that this temperature change may undoubtedly affect the change of the zirconia crystalline form.

However, according to the characteristics of zirconia, the conversion into a quadrilateral only occurs when it reaches 1100°C and then converts into a square during the cooling process, so as long as we control the temperature and avoid high temperatures, we can avoid this problem.

Second, for ultra-thin zirconia ceramics are prone to cracking analysis.

Ultra-thin zirconia ceramic is easy to crack, collapse edge because it belongs to the crystal material, too thin will lead to the workpiece can not withstand the grinding force brought by the grinding equipment, in the process of friction extrusion and other crystal broken is very easy.

In response to this, a new method of fixing zirconia ceramics has been adopted, and the values of the pressurisation system and fixing system have been tested to achieve a good fit between the workpiece and the grinding disc, resulting in the grinding of zirconia ceramics without excessive grinding forces that could cause the workpiece to break.

The technical difficulties of zirconia ceramic grinding are due to the characteristics of the zirconia itself, which can be seen in the characteristics of each workpiece, the parameters that affect the configuration of the grinding equipment, consumables, model structure and process procedures.