September 24-26, China Colored Copper Metal Processing Industry Association, Yuling City People's Government, Shanghai Trading Post Administration, Yuling City Industrial Information Bureau, Yuling City Commissioner Talent Work Bureau, Yuling College, Chang. The 2024 China Metal Processing Industry Annual Conference, the 2024 China Metal Industry High-Quality Quantity Exhibition, organized by the union of Triangular Colored Metal Industry and the union of copper and Steel Industries in Guoling City, Anhui Province, was held. More than 500 people from related industries related to copper processing participated in the next grand meeting.

Opening ceremony of the conference, promotion of the business envcopperment of Yuling, main report meeting; examination of the Institute of Materials Science and Research Institute of China Hanyu High School, examination of the new materials key area of Yuki (new energy vehicle); Processing market, investment book exhibition, copper plate foil industry exhibition, copper tube rod, and special processing industry A long-term triangular steel industry exhibition exhibition, a collection of ten parts of the industry. Currently, on September 26th, the company's customers have been notified and added to the exhibition.

Copper plate foil industry exhibition Yuling Colored Metals Group Co., Ltd. Jinwei copper Industry Branch Co., Ltd. Hu Chung, China Heavy Machinery Research Institute Co., Ltd. Deputy engineer and chief manager of the science and technology engineering department, director of the party committee of China Steel Industry Co., Ltd., and delivered a speech before the meeting of the chairman of the party committee.

At the meeting, the representative of the country's copper plate manufacturing business was displayed, and the national government's large force exhibition was held to demand new quality production. High end, alloying direction, focus on deep machining of aluminum plate and foil division, more and more core functions 、Providing high core competitiveness emphasis、Product management new industry、Custom special new、Ascendant materials、Welding force forming technology innovation、High-end advanced materials、Green low-grade low-quality mathematics three-party special strength、Kakai construction construction development national high-end steel Basic materials base. In the end, another display will be made, China's silver plate foil industry will be acquired, and the new capabilities of science and technology will be strengthened. In 2023, the silver plate foil industry will be finally released. However, there are various styles such as the demand for masks, the internal volume, the high rank of silver, and the exchange rate. Other construction will now be necessary for the independent development of new Japanese products, new quality production, production organization adjustment, replacement development, university exit, reinforcement of enterprise space, and integration between upper and lower areas. Cooperation with the top and bottom, joint efforts to develop China's copper processing industry into a new phase of high-quality, sustainable production, and supplying Chinese-style modernized copper processing industry capabilities.

At the meeting, some experts made a report on the bending workability of copper-nickel-silicon alloys. The Cu-Ni-Si-X alloy (the so-called Corson alloy) is the most researched and developed and commercialized alloy in the past three decades. Among them, there are nearly 100 kinds of commodity names; Thousands of patents and papers.Characteristics of copper alloys Covering surface, Application range, Electrical capacity (%IACS): 60%→30%, Strength of electrical elongation (MPa): 500→1000; Alloy composition (Ni, wt%): 1.2 %→3.9%. The primary characteristics (inductor power strength) of copper/silicon alloys are comparatively stable, and lead power strength of each company's products under similar or similar alloy compositions. However, the secondary characteristics (curvability, stress resistance, fatigue strength, etc.) are very different depending on the product availability of each company. Special features of copper alloy (plate) bending process, bending radius, sheet material thickness, inspection field (magnification), etc., and general differences in bending processability, and the same time test sizing performance are also available. Great impact. Report on the process of bending and machining of silver and silicon alloy materials, the main factors include (1) Grain size: large and small, easy to bend and process. Average grain size 8-15 fine ratio suitable. (2) Differences in composition, medium coarse (fine grain), second phase particles (silica, crystallized matter or precipitates), and curved workability. (3) The end rotation rate is too large, the bending processability difference is large, and the directionality is large. Report on (single crystalline) crystal orientation, (polycrystalline) structure curved processing sexual influence progress research, obtained (1) crystalline body, sliding wire, and curved direction, calculation of calculation of the angle, basic agreement. Maximum Schmidt factorial sliding system movement with explanation. Curved processing, sexual favorability, and modified Schmid factor of large and small curves. (2) The production of pure copper and yellow copper is not the same, and the process of re-synthesis of copper-based alloy sheet-thermal processing technology changes. The main direction that can be obtained is {120},{100},{113}. Polycrystalline curvature processing gives the crystalline homologous shape. However, the mechanism of production is unknown. (3) Curvature processability is an obstacle due to high strength during research and commercialization of copper alloy sheet material. (4) The influence of the curved processing of the copper/silicon alloy plate is very important, among which the structural influence is very important. (5) copper-silicon alloy, the process of dissimilar processing through heat treatment, ability to achieve dissimilar re-synthesis structure, modification of curved processing properties. (6) The mechanism of production is unclear and difficult to control.

At the meeting, we reported on the author's work “Exhibition of high-quality copper plate and its appearance”. The report was issued, the earliest production tools for copper, the use of utensils, how the modern industry was developed, the systematic important components of the modern industry, the amount of surplus and consumption of copper plate materials, and the past monitoring balance. Quantity of national industrial water peace exploration health situation important indicators, attached science and technology exhibition, copper plate material continuous technology development, promotion industry division, new energy, Supporting core materials provided in new areas such as 5G communications. Report on the production of copper and copper alloy plates: In 1949, at that time the national production of copper plates was 752 tons. In the 1970s, after the liberation, the reformation and establishment of society continued, and the gradual formation of Shenyang, Luoyang, and Yanzhou took place. Four major production bases in the sea, located in Beijing, Yantai, Guangzhou, Wuhan and other cities, established small enterprises; 1978 national copper plate production 34764 Tons、Copper strip production 38254 Tons、After the reform, the national encouragement of the people's enterprise exhibition, the establishment of the series Initial level of civil engineering industry; In 1993, the national copper plate production capacity reached 200,000 liters, and in 2007, the new Chinese copper plate production industry In 2007, China's copper plate industry reached 900,000 Tons, 2007. In 018, China's copper plate industry reached 2.15 million liters; China's copper plate industry's capacity increased rapidly to 2018; Expansion stage, China's copper plate manufacturing industry has long been ranked first in the world, occupying 50% of the world's efficiency, but some high-end precision copper sheet manufacturing industry Product demand growth, 2023 total production volume is 35,800,000 liters, domestic high-end precision steel production production volume is 1/20. Reports on the main factors contributing to the rapid growth of the domestic copper processing industry: China is the world's manufacturing powerhouse, the progress of the copper processing industry, new energy and 3C and other new regional rapid development, CRN, overseas military strategy, etc. Afterward, China's copper plate material production capacity and structural progress analysis: In 2024, China's copper plate material production volume exceeded 2.7 million liters, purple copper and yellow copper plate material production capacity ratio reached 73.95%, high Addition of blue copper wire, white copper wire, and high-metal alloy sheet wire, etc. has increased the amount of the product, but the total amount has increased by 24.4%, and the annual growth rate is 1.4 percent. However, according to the growth rate analysis, the increase in the quantity of high-grade copper alloy plates is a long-term growth situation. The progress of the development of the copper plate equipment was from the 1950s to the 1970s. This is a small arrangement that usually includes a general feeling furnace, a heat-retaining furnace, a simple model system, a drum wind machine for comparison, a powder soot-making fuel, a moving reflection blowing black copper, an copper model or a bran model copper making copper lock; the early stage of the exhibition ( In the 1980s-2000s), we started developing overseas advanced technology and developed horizontal, semi-conductive, and vacuum-conductive melting techniques, and we are currently in the production of copper and copper alloys for continuous production. In addition, we can also use the production technology of copper alloys to further automate the production of copper alloys. For example, from 1984 to 1988, the country's progress was preceded by the development of the country, including the country of Luoyu, the country of interest, and the country of Ouchi. 19 units; Multi-flow multi-head high-efficiency melting technology (2001-2015) For use in combustion; combustion control technology, residual heat utilization technology, and calculation machine control technology. From 2016 to now), the domestic manufacturing enterprise has started to enter the main factory stage, which is the main choice of the domestic manufacturing enterprise.

Mainstream production of copper alloy sheet material exhibition range 4th generation, 1st generation: T2 alloy (C1100) Cu-Zn alloy (C26800, C28000); Second generation: Cu-Sn-P alloy (C51900, C52100) Cu-Ni-Zn alloy (C770) 00, C75400) Cu-Fe-P alloy (C19210, C19400); Third generation: Cu-Ni-Si-Mg alloy (C70250) Cu-Ni-Si-P alloy (C190 10) Cu-Cr-Zr alloy (C18150) Cu-Sn-P-Fe alloy (C50715); Fourth generation: Cu-Ni-Co-Si alloy (70350) Cu-Ni-P-Fe alloy Gold (C19000) Cu-Cr-Ti-Si alloy (18070) Cu-Ni-Si-Mn-Mg alloy (C70252) Cu-Cr-Sn-Zn-Si alloy (C18045). Report display, current special alloys available, similar alloys (Cu680, CuMn, CuP284), electromagnetic shielding alloys (CuFe50, CuFe80), ultra-high strength copper Alloys (Cu-Ni-Sn, Cu-Ti), precision electric alloys (CuNi50), electric copper alloys (white copper), ultra-low temperature copper alloys (CuNiMn, CuAlNiMn). Reports are given, copper alloy sheet material product development, and the main comprehensive mechanical performance, higher electrical power, thinner thickness, lower density, etc. direction.

A report on the characteristics of Cu-Cr-Zr alloys of element Si by the author of the meeting. Information on the first part of the report: copper industry products, laboratory products, purple copper: C10100 copper wire for electric vacuum, ceramic covering copper C1020 copper wire for plate, C10300 copper wire for connection; Tin-P-Cu: Crystal C5191 copper wire ( A, horizontal electromagnetic agitation, structure B, grain size of 3 μm (horizontal); high-performance copper alloy (high-strength copper C64775 - substitute C7035; high-temperature resistance, high-strength alloy C1510). During the current research, the performance of Cu-Cr-Zr alloy has been improved, reaching or approaching "double 70" horizontally, the addition of constant content of Si in Cu-0.5Cr-0.15Zr alloy, utilization of "Si available to form Cr2Si, Also, Zr formation Zr 2Si” characteristics, universally applicable thermal processing, multi-region precipitation Cu2Zr, Cu3Zr, Cr2Zr, Cr2Si, Zr2Si iso-strengthened phase, combination form change strength, existing high material strength at the same time, no damage or little damage material strength. General practice obtained: The addition of a constant amount of element Si confirms the availability of Cu-Cr-Zr alloy material, but the distance is "double 70" The main thing is that the hardness of the material is not high. Required material capacity maturity, quantity required for the production of wireframes, connection devices, etc. Many work requirements: One step is to explore the potential of Cu-Cr-Zr-Si alloy (coordinated gold composition, adjustment process) The two are exploration and modification of the alloy material strength control mechanism (component-engineering-strengthening phase-performance system); the three are the addition of other alloying elements based on the two articles in front of each step, and the material integration performance in each step.


At the meeting, a report was made on the author's work ``Film alloy research progress''. The copper alloy has good abrasion resistance, high strength, and high hardness, good abrasion resistance, is a representative of high-performance copper alloy, but at the same time copper copper alloy is the most rigid copper alloy material, Nippon Dowa Metal JX, Nippon Dowa DOW. A. Wieland, Furukawa Electric Co., Ltd. has announced that it has a large amount of knowledge in the world of blue copper alloy technology, and has established a blue copper alloy system. The copper alloy is also a hot spot in domestic industry research, research institutes, and enterprise research, and has achieved technical breakthroughs, but is far superior to other countries. Report information, Research on vacuum melting technology, Obtained high-quality copper, Research report: Increased adhesion Ti content, External view of Cu-Ti alloys, expressed crystal grain size Depending on the size and size of the grains, the crystal grain shape may change depending on whether the crystal is columnar or mixed. When the Ti content is low, the conductivity increases, the Ti content increases, and the formation of solid solution and metal compounds influences the conductivity of the alloy, and the direction of the conductivity decreases. A small amount of Fe (such as 0.1% Fe) is added to the Cu-3Ti alloy, and Fe can act as an atomic solid solution. However, as the Fe content increases (0.1% increases to 0.2%, 0.4% increases to 0.6%), the solid solution amount of Fe atoms in the Cu substrate also increases, the conductive electron scattering action increases, and the resulting electric power is used. The rate is declining. Research on the progress of alloys after recovery + solid solution processing, re-crystalization process, non-uniformity of alloy crystal grain size; solid solution in copper alloys Increasing the power efficiency is the most important, Ti element has high solid solubility in copper at room temperature, and the power performance of Cu-Ti alloy is very high. The final master alloy system technology: Vacuum-sensing melting (VIM): Increases the purity of metals and alloys, removes alloys in the middle, heat, and heat. Vacuum self-reduction annealing (VAR): high metal quality, controlled alloy composition, high depletion ability, low reduction Metal molding, rapid cooling, low production; vacuum melting (SRIF-VILF): mother alloy component free crucible dyeing, avoidance The melting process of the melted metal can be improved, resulting in high metal purity; high melting temperature, high melting point, and high melting point.

At the meeting, the authors reported on a new generation of high-performance copper and copper alloy rolled foil production technology for communications. Thanks to its special features such as high speed, fatigue resistance, and resistance characteristics, it is used in a variety of areas, such as U.S. electric circuit boards, electronic equipment support bodies, new energy vehicles, intelligent hand machines, etc. The main performance requirements for copper foil include high bendability, fatigue resistance, micro-vibration resistance, high strength, low abrasion resistance, high peeling resistance, etc. High-performance copper foil technology process main comprehensive: 1. Rooting alloy design plan, continuous melting, copper manufacturing, copper foil base material, copper plate, re-reaction heat processing, and cold processing, forming copper and copper alloy foil base material; 2.Precision mill for copper foil material, actual precision of copper foil, degreasing and cleaning during recirculation, surface treatment, and equipment with excellent performance of copper and copper alloy rolled foil. Fundamental research results, high bending fatigue resistant fine alloy foils are currently available in many varieties, high bending bending metal alloy foil products are currently being replaced, high supply market; Strong copper alloy rolled foil has been developed with domestic thickness of 60,50,35,18μm. Looking forward to the future, the company general will continue to drive demand, and now high-performance copper and copper alloy foil products will continue to grow.

On the exhibition “Ultra-high-performance copper alloy future exhibition”  written by a certain author. Reported: approximately 1,000,000 tres of copper material for the electronics and information industry, of which approximately 1/2 high-end manufactured copper and copper alloy. Japanese foil materials, such as wire frame materials for assembled electric lines, flexible electric conductor board foil materials, electrical conductor materials, etc. Report information: China's high-performance aluminum alloy plate, the main application of the wire material, the following areas, and the uniform appearance (1) Ultra-large scale assembled cable wire material: wireframe material (2) Steel materials for transportation and new energy: 2020-2025, new energy vehicle annual growth rate reached 29.7%, growth rate of charging battery increased by more than 20%, general growth Market demand for raw materials; (3) Electronic materials for handheld devices and electronic information: Following the spread of 4G and the arrival of the 5G era, handheld devices will continue to maintain high-speed growth. High-precision aluminum alloy plate board, intermediate plate, screen case, contact piece, etc., market demand is constantly increasing; (4) Marine stone Steel pipe materials for oil and chemical industry: 2023 China pipe material market size approximately 1077.5 yuan (people's dollar) and worldwide production. The acceleration of construction of Suwa infrastructure, the rapid expansion of new energy, aeronautics, and other industries, and continued growth in demand for high-performance aluminum alloy pipe materials. (5) High-capacity electrical connection equipment copper wire material: 2024 China electricity connection market area model planning progress reached 1956.83 yuan. The market demand for electrical connection equipment continues to grow, and it is an important component in the production of electrical connection equipment, and the market model for electrical connection equipment has a promising growth potential. (6) Large-scale equipment, copper mold material for product molds: The demand for high-precision, high-performance molds is constantly increasing. The production of copper molding materials is one of the most important materials in demand, and the market size has increased for a long time. Prospects for the exhibition of ultra-high-performance copper alloys, the main comprehensive high-strength electric power, high-resistance stress pine, equilibrium direction copper alloys, high strength, high heat resistance, etc. directions.

At the meeting, we reported on the author's work ``Exhibition of development of metal-based composite materials''. Report information: Metal-based composite materials, layer-shaped metals, and important explanations. The demand for metal shells is wear-resistant, non-magnetic, lightweight, heat-resistant, high-quality metal, etc. China's research on lamellar metals began in the 20th century and 1960s, and achieved important results in areas such as mechanical research, performance exploration, and interface dispersion, and occupied an important position in the world's SDM field. Comprehensive heat exchanger material, copper/metal fitting packaging, non-ferrous steel/Al/SUS, non-SUS/Cu/SUS and other area-based research. Additional assistance includes examples of metal wave generator substrates, hand machine middle plates, hand machine middle frames/mirror head model structures, photovoltaic power plants, dynamic electric power poles, kitchen utensil materials, construction curtain walls, etc. Perspective industry exhibition, report indications: (1) performance-oriented layer-shaped metal, use of the metal layer. (2) In the past five years, the demand for metal parts for electric cars and electric batteries has increased due to the increase in the number of explosion-type metals, the increase in the number of metal parts used in electric vehicles, electric vehicles, heat dissipation parts, etc. (3) Heat-generating, heavy-duty, durable composite metal material, huge market potential, long-awaited expansion. (4) Research on the use of scalloped metal substrates, increasing demand, and increasing the power of training for domestic industrial research.