In steelmaking, metallurgy, and other industrial production industries, alumina ceramics are mainly used for equipment wear resistance. It is mainly made of alumina as a raw material through a series of processes, such as forming, calcination, and post-processing. The material has high-temperature stability, high wear resistance, and good insulation performance, so it is widely used in machinery, lithium battery, chemical industry, and other fields. The density of alumina ceramics is an important factor affecting its performance. So, what factors will affect the density of alumina ceramics?
Factor One: Alumina Purity
Let's talk about the influence of raw materials on alumina ceramics first. The main component of wear-resistant ceramics is alumina, and the purity and particle size of alumina will directly affect the density of alumina ceramics. The greater the purity, the greater the density and the particle size will affect the accumulation of alumina during the forming process. The lower the particle size, the tighter the accumulation, and the higher the density after calcination. In addition, other materials can be added appropriately during the production process to adjust the density of alumina ceramics to meet different usage needs.
Factor 2: Influence of molding method
The effect of the forming process on alumina ceramics should be considered. The molding methods of alumina ceramics include dry pressing molding, injection molding process, and extrusion molding. These methods directly affect the density of the finished product.
Factor 3: Professionalism of personnel
Sintering is one of the main processes in the manufacture of alumina ceramics, which can promote the crystallization of raw materials and form ceramic products. Parameters in the sintering process, such as temperature, time, atmosphere, and cooling rate, affect the density of the finished product. High-temperature sintering can increase the density of the finished product, but excessively high temperatures may cause cracks or deformation of alumina ceramics. Therefore, in order to achieve the desired density and characteristics, it is very important to choose the appropriate sintering process parameters.
In general, the density of alumina ceramics is affected by various factors, including the purity of alumina, the molding process, and the sintering process. In order to obtain the desired density and characteristics, it is necessary to select the appropriate process indicators during the production process.