Cold isostatic pressing is a process in which the powder/granulate is pressed uniformly in all directions.
The granulate is placed in a flexible rubber mould. Once full, the mould is immersed in a not compressible liquid which transmits the pressure (up to 4000 bar ) uniformly in all points and in all directions.
- equal compression ratios (hydrostatic) give highly homogeneous density of the green (not sintered) product in both the axial and radial direction
- the same uniform shrinkage and mechanical resistance throughout the product
- higher mechanical and chemical resistance than an axially pressed product
- high production costs
- low automation