This paper takes domestic and foreign aluminum processing listed companies from 2017-2023 as samples, analyzes the changing trend, and finds that increasing R&D investment can promote the two-way improvement of physical and monetary labor productivity. It introduces the research and development contents of aluminum processing research and development instituations in domestic and overseas, and gives some suggestions for China’s aluminum processing industry to strengthen research and development to improve productivity.

Based on the incoPat patent database, this paper studies the patent and innovative development trends of China Nonferrous Metal Processing Technology Co., Ltd., a leading enterprise in the non-ferrous metal processing industry, from various aspects such as the total number of patent applications, application trends, technology distribution, cooperative applications, inventors, legal status, and transformation and application. Findings reveal that the enterprise has advancing towards high-quality development in science and technology innovation, with innovative domains across the entire nonferrous metal processing industry chain, achieving notable achievements in industry-university-research-application collaboration. However, the enterprise’s innovation quality and value need further improvement. Finally the recommendations for technology-based enterprises are proposed.

This paper introduces the common classification of the melting&holding furnace, and some auxiliary facilities closely matched with the melting&holding furnace. By introducing some new combustion technology in the melting&holding furnace, the development direction of the melting&holding furnace is introduced. This paper describes the related technology of the furnace systematically, and points out that the furnace development direction of the furnace is reducing burning loss, saving energy, safety and environmental protection and intelligence.

Based on the analysis of the current situation of aluminum strip foil industry in domestic and overseas, this paper analyzes the development trend of aluminum strip foil industry from four aspects of production specialization, intelligence, green and scale.

This paper discusses the current status of surface grinding technology for high-performance materials (taking titanium alloys and nickel-based alloys as examples), deeply analyzes the difficulties in grinding processing, and explores the application of advanced grinding technologies such as ultra-high-speed grinding and abrasive jet processing. It provides solutions for optimizing grinding parameters, controlling grinding forces, and adjusting cooling systems during the grinding process of titanium alloys and nickel-based alloys. So as to achieve the purpose of improving processing efficiency and surface quality. At the end of the paper, the development trend and future research directions of surface grinding technology for high-performance materials are prospected.

This paper reviews the development history of Chinese aluminum industry, classifies and summarizes the waste aluminum alloy, analyzes the social quantity of domestic waste aluminum alloy resources from multiple angles, and predicts the increment of waste aluminum alloy (recycled aluminum) resources in the next ten years (2026-2035). The problems existing in the development of domestic waste aluminum alloy recycling industry and how to achieve benign development in the future are put forward.

This paper expounds the harm and potential value of aluminum ash, introduces the comprehensive utilization technology of aluminum ash resources, and analyzes the application prospect and existing problems of aluminum ash.

This paper conducts on experimental study on evaporation heat transfer of 9 inner-threaded copper tubes with different tooth profile parameters under air conditioning conditions. The experiments show that the average convective heat transfer coefficient of the tube with 56 racks increased by 9.91% compared to that with 70 racks. The average convective heat transfer coefficient of the stepped teeth increased by 14.18% compared with that of the normal teeth. The average convective heat transfer coefficient of the same copper tube in refrigerant R32 increased by 59.43% compared with that in refrigerant R22. Therefore, it provides support for the development of new types of inner-threaded copper tubes.

This paper presents the application of aluminum alloy profiles in automotive threshold beams. The structural performance of threshold beams such as stamping and integral aluminum alloy is compared, and the alloy characteristics of 6008 (with excellent extrusion and energy absorption) and 6082 (with high strength and corrosion resistance) are analyzed. By combining three types of vehicle cases, this paper elaborates on the realization of lightweight and safety synergy through multi-chamber design, laser welding, etc. Although it faces challenges such as high initial costs and complex aluminum-steel connections, with the advancement of lightweighting and electrification in the industry and the research and development of new materials, its application scale will expand, contributing to the high-performance and sustainable development of automobiles.

This paper systematically analyzes the key points of process application of the cleaning device in the hot rolling mill for aluminum strips, and focuses on discussing the influence mechanism of device parameters regulation on the morphology of the adhered aluminum layer on the surface of the rolls. Practical experience shows that optimizing the cleaning process can effectively extend the grinding cycle of the rolls by 15% to 20%, reduce the surface defect rate of the strip by more than 30%, and has a significant effect on improving the rolling efficiency and the surface quality of the products.

Transplanting the logistics industry’s three-dimensional warehouse to the melting and casting workshop can fully utilize the three-dimensional space of the production workshop, store a large amount of melting and casting waste and finished products, facilities storage and retrieval, reduce the workshop’s floor space, and improve the enterprise’s production management level.

This article analyzes the 0.2mm×420 mm pure nickel strip products produced and processed from the electroplated nickel plates of a certain company from aspects such as chemical composition, mechanical properties, grain size and process performance. This nickel strip product meets the performance requirements of the national standard GB/T2072. A comparative analysis was conducted with the pure nickel strip product processed from Jinchuan electrolytic nickel plates. The performance of the two products is almost at the same level. Therefore, it can be considered that the electroplated nickel plates of a certain company can replace the electrolytic for the production and processing of nickel strips.

Starting from the application of aluminum alloy in barrier and explosion-proof materials, this paper explores the feasibility and market prospects of using aluminum alloy as barrier and explosion-proof materials, and attempts to seek methods to improve the safety of the use of supporting facilities for fuel vehicles. After analyzing, it is believed that aluminum alloy materials have broad prospects in the field of barrier and explosion-proof materials and possess high technical feasibility. It is expected to provide reference for the design and users of supporting facilities.

In order to investigate the influence law of homogenization process of hot-rolled 1xxx aluminum alloy on the microstructure and properties, the microstructure of the alloy was characterized by metallographic microscope and scanning microscope. It was found that under the homogenization condition of 580 °C×12 h, with the extension of the holding time, the grain size of 1xxx aluminum alloy continuously grew and the second phase gradually dissolved. The hardness reaches its peak at 12 h. By comparing the microstructure and properties of the finished aluminum foil produced by the two homogenization processes of 580 °C×12 h and 580 °C×6 h, it was found that extending the holding time had a relatively small effect on the grain size of the finished aluminum foil, but it was beneficial to reduce the size and area proportion of the second phase, thereby improving the elongation of the finished aluminum foil.

This paper reviews the research progress in recent years on the composition design of strengthening components, lubricating components and friction components of copper-based powder metallurgy friction materials, as well as the preparation process of forming pressure and sintering parameters. It summarizes the cooperation mechanism of each component and the influence law of process parameters on material properties. Based on this, it is proposed that future research on copper-based powder metallurgy friction materials should focus on interface bonding optimization, analysis of friction pair matching, and development of intelligent preparation processes, in order to promote the development of copper-based friction materials towards better performance and lower cost.

Abstract: Starting from the actual needs of digital transformation of nonferrous metal processing enterprises, this paper discusses the overall framework of nonferrous metal processing digital factory with industrial internet platform as a unified base. From the four aspects of equipment automation, production digitization, operation digitization, data security protection to carry our research, put forward the construction of nonferrous metal processing digital factory ideas, enabling nonferrous metal processing enterprises to improve production efficiency, optimize product quality, enhance equipment operation guarantee, reduce production energy consumption, strengthen safety production, improve competitiveness.

This paper introduces the application of oxygen-fuel combustion technology in aluminum smelting furnace. The innovation application of this technology in the aluminum smelting industry, as well as the design and improvement of equipment and process parameters, and the control of tons of natural gas consumption, combustion efficiency, burning loss of liquid aluminum, flue gas emissions, etc., can improve the above indicators.Therefore, it is proved that the oxygen-fuel combustion technology can be applied to the aluminum industry and achieve the effect of improving the combustion efficiency and optimizing the cost of aluminum melting furnace.

In this paper, the microstructure of C19210 (Cu-0.1Fe-0.03P) alloy annealed at different temperatures is observed, and its tensile strength, microhardness and electrical conductivity are measured. The result show that the recovery and recrystallization of rolled C19210 alloy occur in sequence at 200~500 ℃. The tensile strength of C19210 alloy decreases when the annealing temperature increases, but the tensile strength increases slightly to 416MPa at 450℃ under the combined effects of work hardening weakening, dispersion strengthening and grain size evolution. The elongation and conductivity of C19210 alloy increase with the increase of annealing temperature, and the microhardness decreases. However, due to the second phase precipitation, the hardness increases to 128HV at 400℃ and then decreases rapidly.

Abstract: Based on the perspective of market supply dependence on demand, using existing and future capacity data, this paper analyzes the layout of lithium battery manufacturers plants and aluminum foil production enterprises in various provinces and cities across the country. The results show that the gap of battery aluminum foil in China is 543.6kt, Sichuan, Ningxia and other provinces completely rely on imports, and Guangdong, Chongqing and other provinces oversupply. For the new battery aluminum foil project, the best regional layout is given, and the development suggestions are provided to the existing enterprises.

In order to solve the problem of environmental pollution caused by a large amount of flue gas in cold rolling process, the physical models of annular suction hood and slit hood for oil mist trapping in aluminum rolling process are established. The numerical calculation model of the flow field of two kinds of exhaust hoods is established by means of computational fluid dynamics method, and the characteristic wind speed near the mouth of the two kinds of exhaust hoods and the trapping effect of pollutants are compared. The results show that the trap performance of annular suction hood is better than that of slit hood.