Recently, by the Jiangsu Zhongtian Science and Technology Co., Ltd. (SSE: 600522, stock referred to as: transit technology) led, jointly with the Institute of Process Engineering, Chinese Academy of Sciences jointly developed metal (aluminum) -based graphene composite (hereinafter referred to as composite materials) Made a breakthrough. The composite material has been successfully produced on the industrial continuous casting and rolling production line under the prerequisite of realizing the laboratory performance data. It has taken a key step in the development of graphene used in metal field.

Graphene and its related application technology are the focus of global attention. It has unique two-dimensional structure, high strength, high conductivity and high thermal conductivity. It is considered as the most ideal composite material reinforcement Phase, the related topics of the composite materials has become a hot area of ​​the direction. By the transit technology and the Chinese Academy of Sciences jointly carried out by the process of metal-based graphene composite materials, aimed at Zhongtian existing main industry ---- aluminum and aluminum alloy overhead wire field of the key bottlenecks, namely, tensile strength and electrical conductivity Contradictory relationship between the study, the goal is relative to the traditional material conductivity does not drop or slightly lower under the premise of a substantial increase in material tensile strength. The results of the project will provide a new and revolutionary wire product option for the construction of China's power system. The new type of wire leads will be breakthrough in many fields such as energy saving, anti-heavy ice and large span.

The project has successfully produced aluminum-based graphene composite rods in batches using industrial continuous casting-and-roll methods for the first time on a global basis, with higher capacity and lower costs compared to previous batches. The future industrialization of the composite material to promote the process of great significance. During the implementation of the project, the tensile strength of the composite material developed by the targeted technology is improved by 25% ~ 50%, which is basically the same as that obtained in the laboratory research stage and the batch pilot stage, which reaches the same level at home and abroad. Research results in the advanced level.

The unique graphene addition process developed in this project not only solves the problem of difficult infiltration between graphene and aluminum, but also realizes on-line addition of graphene during continuous casting and rolling. The mastery of this technology will not only provide support for the application of graphene in overhead aluminum areas, but also in most aluminum and aluminum alloy applications, combined with other process blending, enabling new composites to achieve higher targeted performance. For example, in the lightweight vehicle development process, the "aluminum on behalf of the steel" has become the main trend in graphene with the help of aluminum can be further reduced, to achieve greater degree of lightweight, and its economic and social benefits Very significant.

At present, Zhongtian Science & Technology has carried out industrial layout for the technological achievements of the project, relying on its subsidiary ---- Shanghai Zhongtian Aluminum Wire Co., Ltd., a subsidiary of its main overhead wire, with a total investment of 300 million yuan. The advanced technology will be the first application of aluminum and aluminum overhead wire products, after a variety of metal products to expand, can form a new business growth point of the enterprise, leading China's high-end graphene composite technology development, bring good economy And social benefits.