Methods for manufacturing foamable metal bodies

Details Methods for manufacturing foamable metal bodies Methods for manufacturing foamable metal bodies

B - Operations, Transporting

22

F

B22F 3/14 (2006.01) B22F 3/11 (2006.01) B22F 5/00 (2006.01) B22F 7/00 (2006.01) C22C 1/08 (2006.01) F28F 13/00 (2006.01) G10K 11/16 (2006.01)

Patent

CA 2044120

A method is described for manufacturing foamable metal bodies in which a mixture (17) of a metal powder (15) and a gas-splitting propellant powder (16) is hot-compacted to a semifinished product (19) at a temperature at which the joining of the metal powder particles takes place primarily by diffusion and at a pressure which is sufficiently high to hinder the decomposition of the propellant in such fashion that the metal particles form a solid bond with one another and constitute a gas-tight seal for the gas particles of the propellant. The foamable metal body can also be produced by rolling. In addition, a use of the foamable metal body (19) thus produced for manufacturing a porous metal body (21) is proposed.

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