| 摘要 |
<p>The present invention refers to a process for the manufacture of metallic porous components having a controlled porosity and porous size, such as metallic foams or metallic sponges, using pure metals or metallic alloys, by means of a modified method known as infiltration of removable fillers, which comprises the steps of a) preparing the materials, b) casting the metal, c) infiltrating the metal and d) dissolving the removable filler. The process is performed by introducing the removable filler material into a mold with a predetermined shape and the pure metal or metallic alloy to a container with a predetermined shape, and by means of a fastening system maintaining the adjustment or pressure therebetween, maintaining a connection of a predetermined shape therebetween with the required dimensions for allowing the metal to pass from the container to the mold when it is in liquid state. The mold adjusted to the container may be introduced into an atmosphere-controlled furnace or into a controlled-atmosphere device introduced into a furnace of conventional and independent electric resistances.</p> |
