Capsules from which elongate metal objects can be produced...

Details Capsules from which elongate metal objects can be produced... Capsules from which elongate metal objects can be produced...

B - Operations, Transporting

21

C

13/17

B21C 23/00 (2006.01)

Patent

CA 1050217

Abstract of the Disclosure A capsule for producing tubes, bars or similar profiled elongated dense metal objects, preferably in stainless steel qualities, by single or multi-stage extrusion of capsules which are filled with a powder of the group comprising metals, metal alloys, ceramics and mixtures thereof and sealed and which are adapted in their form to the desired object or intermediate product. As starting material a powder is used which consists at least predominantly of substantially spherical grains and the capsule is filled with the powder, sealed and compressed by means of cold-isostatic pressure acting on all sur- faces until the density of the powder reaches at least 80% of the theoretical density.

273057

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