Isostatic pressing is one of the molding methods of zirconia ceramics. It is mainly a molding method that utilizes the incompressibility and uniform pressure transmission of liquid media. It can form complex, large, thin and long products that cannot be produced by general methods, and the molding quality is high. Do you know what the isostatic pressing process of zirconia ceramics is like?
Isostatic pressing process of zirconia ceramics:
1. Powder pretreatment
The isostatic pressing process of barren powder also requires pretreatment of zirconia ceramic powder. The fluidity of the powder is improved through the granulation process, and the friction in the powder is reduced by adding binders and lubricants. The bonding strength is improved to adapt to the needs of the zirconia ceramic molding process.
2. Molding process
Including loading, pressurization, pressure holding, pressure relief, and other processes. The loading should try to make the zirconia ceramic powder fill evenly in the mold to avoid the presence of pores; the pressure should be stable and the pressure speed should be appropriate; according to different zirconia ceramic powders and green body shapes, choose the appropriate pressure and holding time; at the same time, choose the appropriate pressure relief speed.
3. Forming mold
Isostatic pressing has special requirements for the forming mold, including sufficient elasticity and shape retention, high tensile crack strength and wear resistance, good corrosion resistance, no chemical reaction with the medium, good demolding performance, etc.
In summary, this is the isostatic pressing process of zirconia ceramics. It is highly applicable, especially suitable for experimental research and small batch production. It can simultaneously press more than two different shapes of parts in a high-pressure cylinder and produce large and complex zirconia ceramic parts, with a short production process and low cost.
Edgetech can provide various Zirconia precision machined parts such as tubes, washers, insulators, rods, flanges, and other high-strength ceramic parts to meet customers’ customized requirements.