In 2016, with the support of Shenzhen municipal government, Anhui lianjiaxiang special cable Co., Ltd. developed a special cable for electric vehicle charging pile with graphene as raw material, benchmarking Tesla's overshoot technology. Graphene, as an atomic material, is very light and thin in volume. At the same time, it can also prevent corrosion, and quickly improve the conductivity. Combined with the wire, graphene has produced many effects that can not be achieved by other materials without increasing the weight of the wire. Under the same current and voltage, the time of filling a car can be shortened by 1 / 3. So far, the charging pile technology of this special cable has been running smoothly in this electric bus station in Shenzhen for two or three years.

At the same time, because the products produced by the company occupy a large share in the market, in order to better protect intellectual property rights and actively promote the development of the industry, Anhui lianjiaxiang company has increased investment in patent application for a long time. At present, the company has 178 patents and participated in the formulation of 25 national and industrial standards. In the industry, the number of patents ranks high.

Han Yingjian, general manager of Anhui lianjiaxiang special cable Co., Ltd.: "For example, more than ten years ago, everyone should know that the elevator began to install LCD screens and focus media elevator advertisements. At the beginning, the elevator cables were bound together, and the signals were often broken, because if they dragged back and forth in a high-rise building, it would be easy to break. There is a combination line in Germany, which is a flat line. Now you often see a wide line like a belt, so it can be bent There's nothing wrong with folding a million times. But at that time, in the landmark civic center of Shenzhen municipal government, if you want to buy this line, it will take at least more than half a year to reach our country. The construction period of the elevator on the government side is very urgent. What should we do? After we got the sample line, we did import substitution. It took us basically two weeks to complete the development, and then another week to pass the strict inspection. So far, the elevator line in Shenzhen municipal government also has our imported substitute line, but because of the substitution of import, we have the patent of domestic elevator combination line. "

At present, many domestic rail transit intelligent subcontracting projects, including Guangzhou Metro, Shenzhen Metro, Hangzhou Metro, Nanjing Metro and Shanghai Metro, use cables developed and produced by Anhui lianjiaxiang company. What efforts has the company's R & D team made behind this?

Han Yingjian said: "For us, this is basically equivalent to doing physical and chemical experiments. You have to do thousands of experiments, and some tests can't be completed by our factory, so we have to go to local research institutes and laboratories to get relevant data. For example, when we are making class B I rail transit refractory products, we have to closely cooperate with the supplier in terms of fresh insulating material technology, and the personnel go back and forth The supplier and the factory have experimented many times and often stay up late, because it takes a long time to submit a finished product and do an experiment every time. Then we have to catch up with the construction period and take out the products within the specified time. At this time, we have to work overtime. Sometimes it's impossible to make a sample once, but we have to do it several times. The investment in the middle is quite large. "

As a specialized and new enterprise in Anhui Province, what is the future development direction and long-term planning goal of lianjiaxiang special cable Co., Ltd?

Han Yingjian: "in the next 3-5 years, we will be the champion of the wire and cable subdivision industry - the intelligent cable industry in China, the top 100 taxpayers in Wuhu, and realize the digitization and unmanned of the whole production process. This is our development direction."