Device for foaming a metal powder useful in mobile units, e.g. automobiles has a propellant including site of a metal semifinished product with one or more large metal sites above and/or below the foamed site

摘要

Device (1) for foaming a metal powder with a propellant including site of a metal semifinished product (2) with one or more large metal sites above and/or below the foamed site. The device includes a screen (3) with energy sources (4,4a) for heating the foamed site which can be controlled individually in groups (sic).