As we all know, the automotive industry has high requirements for materials with high strength, high conductivity and high reliability, so what properties do copper alloys applied to the automotive industry need?
First: ambient temperature, alloying elements and cold working conditions will affect the material conductivity.
Second: the yield strength will affect the terminal elastic stress.
Third: Time and ambient temperature both affect the stress relaxation products of the material.
At present, according to the requirements of the market, in the -40 ℃ -200 ℃ environment, automotive connectors with copper material requirements life within 8000 hours. The life of the material is closely related to the thermal stress relaxation of the material, its microstructure, precipitation phase, grain size, the choice of process route, material condition, hardness and other factors.
