Applications of Titanium Metal and Titanium Alloys in Various Industries

Copper's status as the most electrically conductive of all non-precious metals, combined with its high toughness, medium strength, and good corrosion resistance, is what makes it the preferred choice for the manufacture of large conductors such as cables, busbars, transformer windings, and motor stators and rotors. However, for connector components and commutators, performance needs to be improved by adding appropriate alloying elements. At the same time, automotive connectors are expected to become more widely used as the functional requirements of automobiles increase. The trend toward synthesis of automobiles has led to increasing integration of connectors and more demanding requirements for their overall performance, which also requires excellent overall performance of copper and copper alloy strips for automotive connectors. This paper discusses the performance requirements of copper strips for automotive connectors, introduces the performance of a variety of high-performance copper alloy strips, and gives a reference to high-performance copper alloys suitable for various performance requirements of automotive connectors.         

Automotive connectors with copper and copper alloy tape necessary performance: automotive connectors required performance include high contact force, displacement deformation is small (downward pressure stroke is limited but need high contact force), bending angle is small (product miniaturisation), alternating stress does not fail (high insertion and removal times), low contact impedance, good heat dissipation and low temperature rise, durable high contact force / high temperature environment, in line with environmental standards. Therefore, it is required that copper and copper alloy strips must have high yield strength, high modulus of elasticity, high electrical conductivity, excellent bending properties (low r/t), excellent fatigue resistance, high thermal conductivity, high resistance to stress relaxation/high-temperature softening, and free of environmentally hazardous substances /ROHS and other properties.              

Copper is easy to form copper alloys with other elements, which in turn can be alloyed to improve the various properties of copper to meet the performance requirements of copper alloy strips for automotive connectors, the impact of the addition of other elements on the performance of copper At present, according to the automotive connectors on the performance of copper alloys, has developed a number of groups, a variety of high-performance alloys to choose from. Medium strength, high conductivity STOL@95, medium strength, medium conductivity STOL@76M, high strength, medium conductivity STOL@94, medium strength, low conductivity CuSn8.