Advanced copper alloy materials have technical characteristics such as high strength, high conductivity, and high elasticity, and are key supporting materials required for the development of major national projects and strategic emerging industries such as integrated circuits, network communications, aerospace, marine engineering, and precision instruments.
Due to the irreplaceability of the comprehensive electrical conductivity of copper metal materials, advanced copper alloy materials have become a focus of current international competition for new materials. China is the world's largest producer and consumer of copper and copper alloy materials, accounting for more than 60% of the global market share, but it still lags behind developed countries such as Germany, Japan, and the United States in the research and development of advanced copper alloy materials.
For example, China's copper material industry is still unable to form a stable supply capacity of high-strength and high-conductivity integrated circuit packaging frame materials, high-performance electronic and electrical connector materials and other high-precision copper strips. From January to July 2019, China`s net imports of high-alloy copper strips (integrated circuit packaging frame materials) are 9,000 tons; copper-nickel alloy strips (electronic and electrical connector materials) 6,000 tons. Although the demand is small, China`s copper alloys The company has not been able to provide stable supply, which has become a "bottleneck" key material.
Therefore, the Chinese government will focus on the development needs of strategic emerging industries and national defense technology, accelerate the development of high-precision copper strip products such as copper nickel silicon, copper chromium zirconium, CFA conductive materials, composite materials, and break through a number of "bottlenecks" and lead future development. Key materials and technologies are the key to the transformation of China's copper material industry from large to strong and to ensure the supply of materials in key areas of the country.
Ensuring the supply of key materials and expanding the application areas of copper materials are important tasks for China's copper materials industry in the next five years. Focusing on major downstream needs and supporting national major projects to meet the needs of advanced copper alloy materials in key areas such as electronic information, high-speed railways, marine engineering, large aircraft, new energy vehicles, nuclear power, and emerging industries such as robotics and unmanned driving…
Advanced copper alloy materials for electronic information
Focusing on the needs of the new generation of integrated circuits, electronic components and other electronic information industries, using advanced and reliable technology to accelerate the development of high-precision electronic special copper strips, lead frames for ultra-large-scale integrated circuits, high-strength and high-elastic copper alloy strips, and various electronic discretes Device brackets, precision connectors, etc., enhance the independent supply of high-end copper alloy materials in the electronic information industry.
Advanced copper alloy materials for new energy
Focusing on the needs of power grid transformation and electrical equipment upgrade, focus on the upgrading of traditional products and technologies such as power cables, magnet wires, winding wires, bus bars, plug-in components and connectors, and advance the layout of copper indium gallium selenium thin film solar cells and Copper-based high-temperature superconducting materials and other high-end applications in the frontier of new energy fields.
Advanced copper alloy materials for transportation
In order to solve the shortcomings of key materials for high-speed railways and rail transit, we will focus on breakthroughs in the development and industrialization of contact wires such as copper-nickel-silicon and copper-chromium-zirconium. Focusing on the rapidly growing demand of the new energy automobile industry, focus on the development of high-voltage cables for new energy automobiles, ultra-thin copper foil for power batteries, as well as automobile heat dissipation and connector materials.
Advanced copper alloy materials for high-end equipment manufacturing
Accelerate the development of high-strength and high-elastic copper alloy materials, copper-based shape memory alloys, copper alloys and copper-based composite materials for equipment manufacturing, as well as copper and copper for additive manufacturing, focusing on the high-end manufacturing fields of major equipment such as large aircraft, marine engineering and ships Alloy powder materials, etc.
Key technologies: filtration and purification of copper and copper alloy melts, short-process and low-cost copper foil rolling, continuous extrusion of large-size copper materials, ultra-fine copper wire drawing, large plastic deformation to prepare ultra-fine crystal blocks, high-performance high-precision copper And copper alloy plate and strip manufacturing, new high-strength and high-conductivity copper alloy material development, new elastic copper alloy material development, new high-strength and high corrosion resistance copper alloy material development, new low-cost lead-free brass material development, 3D printing copper and copper alloy Powder preparation and application technology.
Important equipment: high-precision, intelligent copper strip rolling technology and equipment, new submerged multi-head smelting continuous casting technology and equipment, ultra-thin and ultra-wide copper foil rolling equipment, etc.