Patent ID: 9023485
Filing Date: 2015-05-05
Classification: B21B,B32B,H01R,Y10T

Abstract:
1. An electrooptical or electromechanical component comprising a rolled metal substrate made of a metal strip or a sheet produced therefrom made of a Cu or Cu alloy strip, Al or Al alloy strip, Fe or Fe alloy strip, Ti or Ti alloy strip, Ni or Ni alloy strip or a stainless steel strip, characterized in that the metal substrate comprises a surface structure having a roughness in the range of Ra=0.01-8 μm and/or Rz=0.01-30 μm, the surface structure comprises depressions having a minimum lateral extent of 0.3-300 μm formed in a surface portion of the metal substrate which was undeformed when the depressions were formed therein, the openings of the depressions have circular, oval, elliptical or pyramidal shapes and are arranged stochastically in an open structure with a lateral extent extending parallel to the strip surface with a length/width ratio of from 10:1 to 1:10, the length being measured in the rolling direction and the width being measured perpendicularly to the rolling direction, the profile void factor λp lies in the range from 0.25 to 0.65 and a coating of the substrate surface with Sn, Ag, Au, Ni, Zn, Pd and alloys thereof is applied after rolling with a structured working roll.