Aluminium Foam Sandwich (AFS) board /sheet has excellent performance of aluminum foam material, and solves the disadvantage of low strength of single aluminum foam. It is a new functional material with excellent comprehensive performance, which has broad application prospect in automobile manufacturing, aviation, aerospace and other fields.
The preparation of Aluminium Foam Sandwich (AFS) board /sheet at home and abroad mainly adopts adhesive and powder metallurgical foaming method, the production of adhesive Aluminium Foam Sandwich (AFS) board /sheet high temperature resistant and corrosion resistant ability is poorer, the use of the product environment has certain limitations, and powder metallurgical foaming process is deeper in recent years, studies some main preparation methods of Aluminium Foam Sandwich (AFS) board /sheet.In the traditional powder metallurgy foaming process, the bonding of the plate core mainly depends on the hot pressing process, the bonding strength is low, the density of the core layer powder is not ideal, and by the limitation of the hot pressing mold size, can not produce large size Aluminium Foam Sandwich (AFS) board /sheet materials.
