Copper alloy materials with high-strength and conducting performances and production thereof

Abstract

The invention opened a high strength and conductance aldary material which includes: Cr 0.05%-0.10wt%; Zr 0.05%-0.50%; Mg 0.05-0.20wt%; (Ce+Y)<=0.20%; The residue is Cu. The process is : water quench for 1h in 900-960DEG C->30%-45% of cold-drawing deformation->aging treatment for 0.5-4h in 440-520 ->formed by cold-drawing. The strength can reach above 550-600MPa and the specific conductivity can keep above 80% IACS, and the life is improved to 3-5 times, the sintering can reach 550DEG C; the slip is less than 10% in the 300DEG C, the elongation percentage is above 5%, also the alloy has the performance of resistance to elevated temperatures and stand wear and tear.

Description

Technical field

[0001] The invention belongs to the technical field of alloy materials, and mainly relates to a copper alloy material with high strength and high conductivity and a preparation process thereof. It can be used for contact wires of trams and electric locomotives, integrated circuit lead frame materials, conductor materials of high pulse magnetic field, heat exchange materials and corrosion-resistant parts of coastal power plants, electrodes and contact materials of various spot welding and seam welding machines, Commutators for armatures and electric tools, rotor guide bars for large high-speed turbine generators, linings for high-thrust rocket engines, etc. Background technique

[0002] High strength and high electrical conductivity are a pair of contradictory properties, and copper alloy materials are no exception. At present, in the research field of copper alloy materials, the contradiction between high strength and high conductivity is mainly solved by al...