Isostatic Pressing Pressure
"Isostatic pressing" refers to the state of applying equal pressure to the surface-enclosed material in all directions at the same time. According to Pascal's principle, in a closed container, the static pressure generated by the external force acting on the static liquid or gas will be transmitted evenly in all directions, and the pressure on the surface it acts on and the area of the surface Proportional.
Isostatic pressing technology is to use Pascal's principle to place the pressed material sealed in a flexible mold or a solid workpiece with a closed shell in a high-pressure cylinder filled with fluid pressure medium, and use high-pressure equipment to exert a certain pressure on the pressure medium in the cylinder. Pressure, through the pressure medium, the pressure is equally transmitted to the interface of the flexible mold or workpiece, so that the pressed material or workpiece undergoes a certain volume deformation under the action of isostatic pressure, thereby realizing isostatic pressing. If the material to be compressed is a powdery substance, when the pressure acts equally on the surface of the flexible mold, the powder in the package will be uniformly compressed and densified, and its shape is smaller than and similar to the cavity of the flexible mold. "Isostatic pressing" refers to the state of applying equal pressure to the surface-enclosed material in all directions at the same time. According to Pascal's principle, in a closed container, the static pressure generated by the external force acting on the static liquid or gas will be transmitted evenly in all directions, and the pressure on the surface it acts on and the area of the surface Proportional.
Cold isostatic pressing is a technology that realizes isostatic pressing at room temperature. Usually, rubber or plastic is used as the jacket mold material, and liquid or elastomer is used as the pressure medium. Cold isostatic pressing is mainly used for molding and pressing of powder materials to provide preformed blanks for further sintering, forging or hot isostatic pressing.
Warm isostatic pressing uses a special liquid or gas with a certain temperature as the pressure transmission medium. When the powder material cannot be formed at room temperature, the warm isostatic pressing method can be selected.
Hot isostatic pressing is a technology that makes materials undergo isostatic pressing under the simultaneous action of high temperature and high pressure. It is not only used for powder consolidation, but also combines the two steps of forming and sintering in the traditional powder metallurgy process into one step. It is also used for diffusion bonding of workpieces, elimination of casting defects and fabrication of complex shaped parts. Hot isostatic pressing generally uses inert gas (argon, nitrogen) as the pressure transmission medium.
Jiangsu High Industry on the research and development and production of high-performance polyurethane isostatic pressing molds. Through in-depth cooperation with many isostatic pressing equipment manufacturers and in-depth study of the industry, the developed isostatic pressing polyurethane mold series products have the characteristics of long service life, high precision, small deformation, easy demoulding, etc., and are widely used in ceramics, etc. Static pressing mould, cemented carbide isostatic pressing mould, rare earth permanent magnet material isostatic pressing mould, graphite isostatic pressing mould, etc.
