Isostatic press CIP_WB series

hydraulicformingcompact

Isostatic pressing is performed "cold" or "hot." Cold isostatic pressing (CIP) is used to compact green parts at ambient temperatures, while hot isostatic pressing (HIP) is used to fully consolidate parts at elevated temperatures by solid-state diffusion. Isostatic pressing is performed "cold" or "hot." Cold isostatic pressing (CIP) is used to compact green parts at ambient temperatures, while hot isostatic pressing (HIP) is used to fully consolidate parts at elevated temperatures by solid-state diffusion. In the cold isostatic pressing process, a mould or vacuumed sample is placed into a chamber that is filled with a working fluid, usually water with a corrosion inhibitor, which is pressurized by an external pump. The pressure chamber of the MSE cold isostatic press is designed to withstand the severe cyclic loading imposed by rapid production rates and has taken into account fatigue failure. Compared with cold pressing, isostatic compaction applies pressure uniformly over the entire surface of the mould. Die-wall friction, which exerts a major influence on the density distribution of cold-pressed parts, is absent; so much more uniform densities are obtained. The elimination of die-wall lubricants also permits higher pressed densities and eliminates problems associated with lubricant removal prior to or during final sintering. Furthermore, if necessary, air can be evacuated from the loose powder before compaction. Consequently, isostatic compaction provides increased and more uniform density at a given compaction pressure and relative freedom from compact defects when applied to brittle or fine powders.