High-purity copper-titanium alloy is a copper-based alloy with unique properties, boasting ultra-high strength, excellent electrical conductivity, high elastic modulus, high bendability, and high stress relaxation resistance. This alloy typically achieves its ultra-high strength and desired physical properties through high-temperature solution treatment followed by aging.
Features
High-purity copper-titanium alloy exhibits excellent yield strength, elastic limit, electrical conductivity, ductility, and fatigue resistance.
This alloy exhibits excellent stress relaxation resistance and bendability, and its high strength surpasses traditional high-performance copper alloys such as beryllium copper.
Copper-titanium alloys offer high strength and excellent electrical conductivity, with electrical conductivity reaching 12% to 20% IACS.
The alloy has a density of approximately 8.70 g/cm³ and a high elastic modulus of approximately 127 GPa.
Applications
Due to its high strength and electrical conductivity, high-purity copper-titanium alloys are suitable for components such as connectors and camera modules in electronic devices.
In the 3C (3D) industry, such as smartphones and computers, high-purity copper-titanium alloys are used to manufacture structural components such as midframes and hinges.
In the aerospace sector, titanium alloys are widely used in aircraft structural parts and engine components due to their lightweight and high-strength properties.
Copper-titanium alloys are also used to manufacture battery terminals, antenna terminals, and SIM card connectors, with C1990HP and NKT322 grades particularly excelling in these applications.
Preparation Process Requirements
The preparation process for high-purity copper-titanium alloys requires controlling compositional uniformity and minimizing metal oxidation during the melting process.
An effective preparation method is vacuum consumable arc melting, which ensures the alloy has low gas content, few inclusions, and a uniform microstructure.
During the preparation process, attention should also be paid to the vacuum level during melting and the use of shielding gas to reduce oxygen content and prevent metal oxidation.
For high-performance ultrafine-grained copper-containing titanium alloys, researchers have developed a strategy of "eutectoid alloying → quenching → hot deformation" (EQD), which achieves large-scale preparation of ultrafine-grained structures through conventional operation of hot processing equipment.
The company boasts leading domestic titanium processing production lines, including:
German-imported precision titanium tube production line (annual production capacity: 30,000 tons);
Japanese-technology titanium foil rolling line (thinnest to 6μm);
Fully automated titanium rod continuous extrusion line;
Intelligent titanium plate and strip finishing mill;
The MES system enables digital control and management of the entire production process, achieving product dimensional accuracy of ±0.01μm.
