Over the years, ZLLY Copper Alloy Technology Group has independently researched and developed a series of high-performance copper alloys for aerospace, and has drafted a number of national standards for copper alloys for aerospace, including key projects such as "Shenzhou", "Chang'e", "Tiangong" and "Beidou" for China's aerospace engineering. It provided reliable material support and made outstanding contributions to the success of the first rendezvous and docking of China's manned spaceflight project and the first lunar exploration project.
ZLLY products are also available in the Three Gorges Dam and the Xiaolangdi Reservoir at Jiamenkou, the Daya Bay Nuclear Power Plant, and China's high-speed rail construction.
As a highly influential comprehensive non-ferrous metal processing enterprise in China, ZLLY has strong technical strength in the research and development of key metal materials. "ZLLY high-performance alloy materials" stroboscopically appear in China's major national projects.
The Fengman Hydropower Station, built in 1937, is China's first large-scale hydropower station and is known as the "Mother of Hydropower" in China. After the Fengman Hydropower Station reconstruction project was launched in 2012, "ZLLY products" successfully broke into the power station reconstruction project with reliable quality and considerate service, and were widely used in important parts. As the largest hydropower station in the world, the Three Gorges Hydropower Station also uses ZLLY products in copper alloy waterstop materials. At present, the Xiluodu Hydropower Station, the second largest hydropower station in China, and the Baihetan Hydropower Station, the third largest hydropower station in China, have been constructed with high-performance copper contract waterstops and generator sets manufactured by ZLLY. ZLLY has made outstanding contributions to China's backbone projects such as hydroelectric power generation and "West-East Power Transmission".
With the development of China's high-speed rail technology, ZLLY's development has never stopped. In order to promote the progress of China's high-speed rail catenary technology, ZLLY conducts analysis and research on a foreign complex copper alloy and domestic alloy materials. Through repeated trials and comparisons and process verification, ZLLY adheres to the principle of "introduction, digestion, absorption and improvement" to develop new materials , New technology, new technology, established related copper alloy bar and strip rolling processing production technology. Through repeated trials and comparisons and process verification, the materials developed and developed are successfully delivered to customers and made into new products such as positioning clamps, suspension clamps, electrical connection clamps, central anchor clamps, etc., which meet the domestic high-speed rail requirements of 350 kilometers per hour , To break the foreign monopoly on this material and realize the localization of copper high-speed rail clamp suspension strings.
At present, ZLLY independently researched and developed high-conductivity oxygen-free copper sheets for high-speed railways, and copper alloy materials with wear resistance and high temperature softening resistance, filling the domestic gap. The national standards of "Bronze Rods for Catenary" and "Bronze Strips for Catenary" formulated by ZLLY not only fill the gaps in industry standards, but also greatly reduce the construction cost of electrified railways, which is of great significance to the promotion of my country's high-speed railway construction . At the same time, standard translation work is in full swing. With the large-scale output of China's railway technology, as a special standard for copper and copper alloy materials and materials for electrified high-speed railways, it will also go to the global markets.
As a pioneer in China's copper processing industry, ZLLY has always taken the revitalization of the national industry as its mission and realized the replacement of imported materials as its mission, and has solved a number of "bottleneck materials" projects:
A few years ago, in order to meet the demand for large-diameter cupronickel pipes for Chinese ships, ZLLY achieved technological breakthroughs after nearly half a year of technical research, and produced super large-diameter drawn cupronickel pipes with a diameter of 368 mm that could replace imports, satisfying customers The demand for super large-diameter copper-nickel pipes has filled the domestic gap.
During the construction of China's nuclear power industry, copper was used in a key part of the energy storage device of the generator set. This type of material exceeded the national standard and the manufacturing capacity of the production equipment at that time, and a large number of imports were required every year. In order to meet the needs of national construction, ZLLY continues to strengthen research and development efforts, continuously improve the comprehensive performance of materials, formulate strict product enterprise standards and production process regulations, and finally overcome difficulties, realize the import substitution of materials, and fill the gap in my country's nuclear power copper plates.
As one of the 156 key projects built during China’s "First Five-Year Plan" period, ZLLY has made countless brilliant achievements over the years: it cast China’s first semi-continuous cast aluminum bronze ingot and extruded China`s first Copper alloy rods and tubes, trial-produced "long hollow copper alloy conductors" for China's first "300,000 kilowatt dual internal water-cooled generator set", trial-produced large elliptical copper alloy tubes for ships, etc. The research and development of high-precision special-shaped copper strip products, wrought magnesium alloy continuous casting and rolling technology research, high tin phosphor bronze strip products, and the development of bronze strip products for AC terminal strips and other high-tech products have filled many blanks in the domestic copper processing industry. Its main products have covered all the varieties currently produced in China, and are widely used in various sectors of the national economy such as aviation, aerospace, metallurgy, electronics, electromechanical, textile, transportation, construction, chemical industry, light industry, energy, coinage, etc. The industry has strongly supported the country`s economic construction and national defense construction.
"At present, ZLLY is the main formulation unit of national and industry standards for copper processing materials. It has presided over the drafting of dozens of national standards and industry standards, accounting for more than 41% of the current standards in the copper processing industry and made important contributions.