Fremgangsmåte og innretning for fremstilling av hellbare metallskum

摘要

Production of a flowable metal foam having a mono-modal distribution of the dimensions of the hollow spaces comprises feeding gas (5) into a metal melt (4) from inlet pipes (3) protruding into a metallurgical vessel (2), and forming bubbles (6) on the ends (31) of the pipes. Independent claim are also included for: (a) device for producing a flowable metal foam having a mono-modal distribution of the dimensions of the hollow space; and (b) flowable metal foam produced.