Method for Producing Metallic Flat Wires or Strips with a Cube Texture

Abstract

Method for producing metallic flat wires or strips with a cube texture that can be used, for example, as a base for physical-chemical coatings. The products can be produced after the last forming step in their finished width without further processing of the edges. The method includes processing a material based on nickel, copper, gold, or silver into a wire by a cold drawing method, achieving a total cross-sectional reduction ε g ≧75% or a logarithmic deformation φ g ≧1.4, and the wire is then further processed by further forming and annealing methods into a flat wire or a strip with a cube texture and having a width that can be adjusted in a defined manner.

1 . Method for producing metallic flat wires or strips with a cube texture, comprising processing a material based on nickel, copper, gold, or silver into a wire having an essentially circular cross section by a cold drawing method with high-grade forming over multiple drawing stages, achieving a total cross-sectional reduction ε g ≧75% or a logarithmic deformation φ g ≧1.4, and then further processing the wire by further forming and annealing methods into a flat wire or a strip with a cube texture and having a width that can be adjusted in a defined manner, the defined width being determined and adjusted by the wire cross section and degrees of forming of further forming steps for the wire.  
   
   
       2 . The method according to  claim 1 , wherein the cold drawing method is implemented with a total cross-sectional reduction of ε g ≧90% or a logarithmic deformation of φ g ≧2.3.  
   
   
       3 . The method according to  claim 1 , wherein the cold drawing method is implemented as slip drawing by drawing dies having drawing angles 2α=2°-20°.  
   
   
       4 . The method according to  claim 3 , wherein the cold drawing is implemented using drawing angles of 2α≦12°.  
   
   
       5 . The method according to  claim 1 , wherein the cold drawing method is carried out in respectively alternating drawing directions (reversibly).  
   
   
       6 . The method according to  claim 1 , not including an intermediate treatment of the wire before the further forming and annealing methods.  
   
   
       7 . The method according to  claim 2 , wherein the cold drawing method is implemented as slip drawing by drawing dies having drawing angles 2α=2°-20°.  
   
   
       8 . The method according to  claim 7 , wherein the cold drawing is implemented using drawing angles of 2α<12°.  
   
   
       9 . The method according to  claim 2 , wherein the cold drawing method is implemented as slip drawing by drawing dies having drawing angles 2α=2°-20°.  
   
   
       10 . The method according to  claim 7 , wherein the cold drawing is implemented using drawing angles of 2α<12°.  
   
   
       11 . The method according to  claim 2 , wherein the cold drawing method is carried out in respectively alternating drawing directions (reversibly).  
   
   
       12 . The method according to  claim 2 , not including an intermediate treatment of the wire before the further forming and annealing methods.  
   
   
       13 . The method according to  claim 3 , not including an intermediate treatment of the wire before the further forming and annealing methods.  
   
   
       14 . The method according to  claim 4 , not including an intermediate treatment of the wire before the further forming and annealing methods.  
   
   
       15 . The method according to  claim 5 , not including an intermediate treatment of the wire before the further forming and annealing methods.