Manufacture of foamed aluminum alloy composites

Abstract

A method for preparing foamed aluminum alloy composites comprising the steps of: (a) placing a liquid hardness-reinforcement composition into a tank, the hardness-reinforcement composition containing about 54.about.64 wt. % of an inorganic powder, about 35.about.45 wt. % of a nonflammable curable resin, and about 1 wt. % of a curing agent; (b) placing a foamed aluminum alloy plate having an internal porous body into the tank containing the hardness-reinforcement composition, then applying a pressure of about 10.about.50 Kg/cm.sup.2 onto the foamed aluminum alloy plate for about one to two hours so as to allow the hardness-reinforcement composition to soak into the foamed aluminum alloy plate and form a coated layer on the surface of the porous body; (c) removing the foamed aluminum alloy plate that has been coated with a layer of the hardness-reinforcement composition from the tank; and (d) drying and curing the curable nonflammable resin so as to form the foamed aluminum alloy composite. The inorganic powder can be any mineral powder such as marble, granite, alabaster or serpentine powder. The foamed aluminum alloy composite plates of the present invention has light weight and exhibits excellent heat and sound insulation, and can be used as excellent building construction material for interior and exterior walls, partition walls, floors, and ceilings. If marble powder is used as the inorganic powder, the final polished plates of the present invention can be further imparted with an exquisite marble appearance for decorative effect.

Dependencies are inferred from the claim text.