Metal material for a wiring connector

Abstract

A metal material for a wiring connector in wiring connection between metallic members, wherein at least one of the metallic members is comprised of copper or a copper alloy, wherein a connecting portion surface of at least one of the metallic members has an average roughness Ra of 0.3 μm or less and a maximum roughness Rt of 2.0 μm or less, and wherein the metal material is excellent in glow resistance.

1 . A metal material for a wiring connector in wiring connection between metallic members, wherein at least one of the metallic members is comprised of copper or a copper alloy, wherein a connecting portion surface of at least one of the metallic members has an average roughness Ra of 0.3 μm or less and a maximum roughness Rt of 2.0 μm or less, and wherein the metal material is excellent in glow resistance.  
     
     
         2 . The metal material for a wiring connector as claimed in  claim 1 , wherein a ratio Rt/Ra between the maximum roughness Rt and the average roughness Ra is 10 or less, and wherein the metal material is excellent in glow resistance.  
     
     
         3 . The metal material for a wiring connector as claimed in  claim 1 , wherein the metal material has a tensile strength of 500 MPa or more, and an electric conductivity of 30% IACS or more.  
     
     
         4 . The metal material for a wiring connector as claimed in  claim 1 , wherein the metal material is comprised of a copper alloy comprising Sn 0.1 to 10 mass %, and P 0.001 to 0.5 mass %, the balance being copper and inevitable impurities.  
     
     
         5 . The metal material for a wiring connector as claimed in  claim 1 , wherein the metal material is comprised of a copper alloy comprising Cr 0.1 to 1.0 mass %, and 0.05 to 5 mass % of at least one element of Sn and Zn, the balance being copper and an inevitable impurities.  
     
     
         6 . The metal material for a wiring connector as claimed in  claim 1 , wherein the metal material is comprised of a copper alloy comprising Ni 1.0 to 5.0 mass %, Si 0.3 to 1.3 mass %, and 0.05 to 5.0 mass % in total of at least one element of Mg, Sn, and Zn, the balance being copper and an inevitable impurities.  
     
     
         7 . The metal material for a wiring connector as claimed in  claim 1 , wherein the metal material is comprised of a copper alloy comprising Fe 0.5 to 3.0 mass %, and P 0.1 to 1.0 mass %, the balance being copper and an inevitable impurities.  
     
     
         8 . The metal material for a wiring connector as claimed in  claim 2 , wherein the metal material has a tensile strength of 500 MPa or more, and an electric conductivity of 30% IACS or more.  
     
     
         9 . The metal material for a wiring connector as claimed in  claim 2 , wherein the metal material is comprised of a copper alloy comprising Sn 0.1 to 10 mass %, and P 0.001 to 0.5 mass %, the balance being copper and inevitable impurities.  
     
     
         10 . The metal material for a wiring connector as claimed in  claim 2 , wherein the metal material is comprised of a copper alloy comprising Cr 0.1 to 1.0 mass %, and 0.05 to 5 mass % of at least one element of Sn and Zn, the balance being copper and an inevitable impurities.  
     
     
         11 . The metal material for a wiring connector as claimed in  claim 2 , wherein the metal material is comprised of a copper alloy comprising Ni 1.0 to 5.0 mass %, Si 0.3 to 1.3 mass %, and 0.05 to 5.0 mass % in total of at least one element of Mg, Sn, and Zn, the balance being copper and an inevitable impurities.  
     
     
         12 . The metal material for a wiring connector as claimed in  claim 2 , wherein the metal material is comprised of a copper alloy comprising Fe 0.5 to 3.0 mass %, and P 0.1 to 1.0 mass %, the balance being copper and an inevitable impurities.