Recently, Chinese scientific research teams have made remarkable progress in the field of aluminum alloy cable. Kunming University of Science and Technology, in cooperation with a number of domestic institutions, has successfully developed a new type of heat-resistant aluminum alloy conductor with a strength of 195±2 MPa while maintaining a conductivity of 61.1%. This breakthrough not only breaks the record of the performance of heat-resistant aluminium alloy cable under industrial production conditions, but also has important significance for promoting the high-quality development of China's green aluminum industry.

aluminium alloy cable are widely used in the field of power transmission due to their advantages such as lightness, corrosion resistance, and good conductivity. However, there is a certain restrictive relationship between the conductivity, strength and heat resistance of traditional aluminum alloy cable, which limits their use in special environments. Therefore, improving the comprehensive performance of aluminum alloy cable has always been the direction of scientific research.

The research team of Kunming University of Science and Technology creatively proposed a new method based on the previous systematic study of the effects of different processes on the microstructure and strength, conductivity and heat resistance of aluminum-zirconium alloy cable. They prepared a high-strength, high-conductivity, heat-resistant aluminum alloy conductor by continuous casting and rolling fine grain strengthening, over-aging full precipitation of solid solution zirconium atoms to significantly improve the conductivity of the alloy, and cold drawing deformation strengthening synergy. After the conductor is kept at 280℃ for 1 hour, its strength retention rate can reach 94%, showing extremely high stability and reliability.

This new research result is of great significance to meet the needs of ultra-high voltage, long-distance, and large-capacity power transmission. It can not only reduce energy loss and improve power transmission efficiency, but also adapt to more severe environmental conditions and broaden the application scope of aluminum alloy cable. In addition, with the global emphasis on clean energy and sustainable development, the market demand for high-performance aluminum alloy cable is expected to grow further.

This major breakthrough by the Chinese scientific research team in the field of aluminum alloy cable not only demonstrates China's strength in materials science and metallurgical engineering, but also provides new solutions for the development of the global power transmission industry. With the continuous maturity of technology and the promotion of application, high-performance aluminum alloy cable are expected to play an increasingly important role in future power transmission systems.