Patent ID: 8225480

Claim:
A method for producing metal panels comprising: supplying a metal melt ( 4 ) with liquid metal; bringing into contact a substrate ( 8 ) with said metal melt ( 4 ), wherein said substrate ( 8 ) comprises one or more first grooves ( 17 ) which extend over an entire width of said metal panels to be produced, and wherein said substrate ( 8 ) has a lower temperature than said liquid metal, so that some of said liquid metal crystallises on said substrate ( 8 ); moving said substrate ( 8 ) relative to said metal melt ( 4 ) so that a metal foil ( 16 ) is formed on said substrate ( 8 ); separating the metal foil from said substrate, wherein said metal foil ( 16 ) is divided into metal panels at points where said first grooves ( 17 ) are located, wherein the substrate ( 8 ) comprises at least one second groove ( 52 , 54 ; 92 ) with such dimensions that it is substantially filled by said liquid metal, wherein thickening enforcements are formed on said metal panels in the at least one second groove ( 52 , 54 ; 92 ), whilst the remainder of the panels remains thin, the thickening enforcements reinforcing the metal panel as a whole.