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Molding of Aluminum Foams by Using Hot Powder Extrusion
So that you can form aluminium foams from powder directly, a combined procedure for awesome powder molding and extrusion is proposed. Aluminum powder blended with a foaming agent is usually extruded into the mold through the die heated to a heat higher than the melting level, and the mold is without question filled with twin screw extruder the metal foam. Whenever a stainless metal pipe is used for a simple mold, an lightweight aluminum foam bar is obtained of which the relative density varies between 0.2 and 0.3. The molding of metal foam through the use of three types of mold condition shows the impact of gravity and friction. The effect of gravity is significant when a huge step is present at the connection between the mold inlet and the die store, and friction can be dominant where foam is normally mold in a narrow space.

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