[China Aluminum Network] Since Franklin discovered electricity 200 years ago, this kind of energy has been accompanied by the progress of human society and the development of industrial society. For modern people, electricity has become a natural resource. However, energy consumption eventually has an upper limit. From the time of thermal power generation to hydroelectric power generation to nuclear power generation, when meeting people’s ever-increasing power demand, how to reduce energy consumption is also a question that should be actively considered by people today. Is there any way to save energy? Imperative technological innovation In the future, China will fully build a strong smart grid that uses the UHV grid as the backbone grid and coordinated development of all levels of power grids. In the ordinary people’s living environment, as far as the eye can see, the towering towers will be erected to cross over half of China’s circuit wires to realize the “national power transmission from west to east and from north to south,†and gradually build global energy interconnection. Intelligent operation control and interactive service system. At this time, electrical energy is rapidly running, running, and consuming on the grid. Moreover, in order to meet people's increasing power demand, in addition to the new large-capacity transmission lines, the expansion of the old lines needs to be able to support long-lasting power grid materials to ensure the safe and reliable supply of old city power. From the perspective of the entire power industry, the replacement of overhead steel-cored aluminum stranded conductors with high-conductivity heat-resistant aluminum alloy wires under existing line corridors and facilities is an effective way to increase line transmission capacity and reduce line losses. However, the electrical conductivity, heat resistance, and mechanical properties of aluminum alloys are mutually restricted, and it is extremely difficult to improve the electrical conductivity of aluminum alloy wires under the premise of ensuring mechanical properties and heat resistance. It took 10 years for Japan to heat-resistant. The conductivity of aluminum alloy wire is increased from 58% IACS to 60% IACS. It is not easy to develop an aluminum alloy wire with high conductivity and good heat resistance. Continuous technological breakthrough In 2012, teams of scientific research institutes such as the Global Energy Internet Research Institute and Central South University formed a team to carry out systematic alloy design, preparation techniques, and process research to meet the technical requirements for improving transmission line capacity and improving transmission efficiency. At the beginning of project establishment, domestic and international mass production and engineering application examples of heat-resistant aluminum alloy wires with a conductivity of 61% IACS, and only the conductivity of Japan's use of high-purity industrial aluminum ingots of more than 99.85% using complex and demanding processes. The report of 61% IACS heat-resistant aluminum alloy monofilament is very expensive and difficult to achieve industrial production. In the study of the project, the entire project team revealed the influence of various micro-alloying elements and the amount and method of addition on the overall performance of the aluminum alloy conductor material, and the composition system of the conductor material meeting the target requirements and the optimized preparation process were obtained. . In January 2016, the project achievements passed the scientific and technological achievements appraisal organized by the China Electric Power Enterprise Association. The appraisal committee of the Chinese Academy of Engineering academician Xie Jianxin assumed that: “The conductivity index of the research results (≥61% IACS) has reached the international advanced level. Level.†In December 2016, the project won the first prize of the 2016 China Nonferrous Metals Industry Science and Technology Award. In terms of theoretical innovation, the project first revealed the interaction mechanism between Al and trace Zr, Re and its effect on the performance, based on alloy thermodynamic calculations and experimental verification. The development of the second phase configuration on the macroscopic properties of electrical aluminum alloy materials was investigated. The control mechanism; At the same time, based on the micro-alloying theory and innovations, the matching design of aluminum alloy performance and composition and preparation process was carried out, and the aluminum alloy conductor distribution scheme and key preparation process parameters with excellent overall performance were obtained, achieving 61 %IACS High conductivity of heat-resistant aluminum alloy monofilament (long-term heat-resistant temperature of 150°C) and lead (long-term heat-resistant temperature of 120°C) were successfully prepared; there was also used 99.7wt.% of industrial pure aluminum, through Al, B The reasonable proportion of Zr, RE, and RE elements were added to make B and RE produce composite microalloying of purification, metamorphism and synergistic Zr. Industrialized production of high-conduction heat-resistant aluminum alloy wires was achieved, achieving a 61% IACS resistance. Engineering application of hot aluminum alloy wire. It is understood that this project has obtained a total of 5 national invention patents and has published more than ten papers, including 9 SCI/EI papers. Broad and specific application perspective In addition to obtaining basic theory and test methods, the entire project also mastered the core technology of high-conductivity heat-resistant aluminum alloy conductor materials and wires, and realized the engineering application of aluminum alloy wire products. At present, the project developed a heat-resistant aluminum alloy conductor with a conductivity of 61% IACS, which has been used in the capacity increase transformation projects in Liaoning, Henan, and Yunnan, and the use of existing lines and poles and towers to replace wire products can realize line transmission. The increase in capacity will greatly reduce the time for blackouts and reduce the indirect economic losses caused by construction costs and power outages. The operation of the line has so far been in a good state and has effectively ensured the safety and reliability of power supply. According to statistics, there are about 300 billion wire usage per year in China, and the share of heat-resistant aluminum alloy wires is about several billion yuan. According to a roughly estimated 50,000 km per year of heat-resistant aluminum alloy wires in China's entire network, the use of 61% IACS heat-resistant aluminum alloy wire instead of active heat-resistant aluminum alloy wire can reduce transmission line loss by approximately 1.07×109kWh per year, which can reduce CO2 emissions. 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Create an aluminum alloy wire that is both high temperature and low energy consumption