Cold Isostatic Pressing Ceramics

Warm isostatic pressing wip differs from cip only in that shapes are pressed at warm temperature to about 100 c.

Cold isostatic pressing ceramics.

The hip process applies high pressure 50 200 mpa and high temperature 400 2 000 c to the exterior surface of parts via an inert gas e g argon or nitrogen. Medical implants tungsten carbide ceramics titanium and superalloys and aerospace parts. Isostatic pressing is the powder compaction method involving applying pressure from multiple directions through a liquid or gaseous medium surrounding the compacted part. For metals around 100 theoretical density can be achieved while ceramic powders that are more difficult to compress can reach about 95 of theoretical density.

Cold isostatic pressing cip is conducted at room temperature. Cold isostatic pressing allows the production of simple shaped small or large powder compacts up to 2000 kg with a uniform green density even for large. Cold isostatic pressing cip is applied to consolidate ceramic or refractory powders loaded into elastomeric bags. Isostatic pressing cold isostatic pressing consists in compacting a powder in an elastomeric container submersed in a fluid at a pressure of 20 to 400 mpa.

A flexible commonly polyurethane mold immersed in a pressurized liquid medium commonly water is used in the cold isostatic pressing method see the scheme. Hot isostatic pressing hip and cold isostatic pressing cip technology has been known for more than 50 years and is considered today to be a standard production route for many applications. Some of the products that go through ips are. For near net shaping and quality control of these materials a preform configuration of powder compact as well as density distribution and porosity structure must be investigated before sintering and subsequent processings.

The cold isostatic pressing cip is a convenient tool to yield the powder compact of advanced materials including ceramics. For decades cold isostatic pressing cip has been used successfully by manufacturers around the world. Froyen in fundamentals of metallurgy 2005. Isostatic pressing services ips is a toll hip company started in 2015 primarily to do toll hipping for the investment casting industry due to its prime location.

Rolling machining or sintering. Cold isostatic pressing cip is a manufacturing process for the consolidation of metal and ceramic powders.