In the past ten years, YTFX Bimetal Co., Ltd. cooperated with the Beijing University of Science and Technology team to successfully achieve the expert results of the invention of "copper-aluminum composite continuous casting direct forming technology and process" and "composite busbar efficient forming technology and process" The industrialization of China ’s industrialization has twice undertaken the “863 Plan” of the country and led the drafting of two national standards and one international standard in the field of continuous casting copper-aluminum composite materials.
YTFX Copper-Aluminum Composite
From the perspective of national resource security, China's annual copper consumption accounts for more than 40% of the world's total, but 75% depends on imports. China's power sector uses nearly 2 million tons per year. If copper-aluminum composites are used to replace copper, aluminum can save 1.5 million tons of pure copper resources per year, which is of great significance for ensuring national resource security.
"Our copper-aluminum composite conductor material has a volume conductivity of 75%, an ampacity of 80% of pure copper of the same specification, a 50% weight reduction compared to copper, and a cost reduction of about 30%. Our core advantage is copper and aluminum The metallurgical bonding between atoms solves the problem of transition between copper and aluminum. "Wang Lianzhong told us.
It is understood that the main feature of YTFX's copper-aluminum composite material is its light weight advantage. The product can increase the overall energy-to-weight ratio of the battery pack and increase the mileage. Take new energy vehicles as an example. At present, the connection of YTFX products on each new energy passenger car is about 5 kg. Each new energy bus uses about 50-70 kg, saving about 50% in weight.
As we all know, subway and high-speed rail car bodies are made of aluminum alloy materials. The power distribution system is made of copper. The grounding safety connection between copper and aluminum was previously imported from Britain. Now YTFX's copper-aluminum composite material has achieved true The replacement of imported products has lowered the price and achieved performance improvements.
In the field of electric power fittings, it is estimated that there will be about 10,000 tons of copper-aluminum transition materials required each year, and the market size will exceed 1 billion yuan. Previous electric power fittings used friction welding. Under the condition of painful heating and vibration, there was a risk of fracture. There was a high risk to the safety of the entire power grid and the maintenance of the power grid, and the cost was high. YTFX's newly developed "new copper-aluminum transition terminal" product (commonly known as wire nose) solves the problem of long-term unreliability caused by direct copper-aluminum welding in the field of power fittings, and has effectively promoted the transformation and upgrading of the power fittings industry and the safety of power systems Keep running.
It is understood that since the introduction of YTFX products to the market in 2012, it has quickly gained market recognition. At present, more than 20 domestic and foreign leading enterprises such as Goldwind Technology, ABB, Schneider and others have replaced copper-aluminum composite bars produced by Fuxinda Company. Pure copper busbars are used as power transmission and distribution equipment. After testing, their performance fully meets the requirements for use. The company now has an annual capacity of 8,000 tons of copper-aluminum composite materials.