Pressed sheet or continuous ribbon with a sandwich structure, Process to manufacture such pressed sheet or continuous ribbon and Process to manufacture punched material using such pressed sheet or continuous ribbon

摘要

The sheet (1) or band has a carrier body (10) connected with a stamping body (11) or copper layer, by a surface structure (13) using an adhesive agent (12) i.e. high temperature adhesive. The carrier body and the stamping body form a sandwich structure. The adhesive agent is doped with metal powder. The adhesive agent is tempered in temperatures above 250 degree Celsius for releasing the carrier body and the stamping body. The adhesive agent contains a magnetic film made of silicon elastomer with additives of high temperature resistant magnetic materials. An independent claim is also included for a method for manufacturing a pressed sheet or continuous band.