2025 Volume 54 Issue 2
Published: 20 April 2025
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  • Wang Wei
    2025, 54(2): 1-4.
    Abstract ( 16 ) Download PDF ( 13 )   Knowledge map   Save
    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.
  • Liu Jianbin, Yang Yiduo, Zhao Sitong, Huang Luhan, Li Yonghua
    2025, 54(2): 5-8.
    Abstract ( 12 ) Download PDF ( 10 )   Knowledge map   Save
    In this paper, the microstructure, mechanical properties and antibacterial properties of medical TiCu alloy are introduced, and the future research direction is discussed.
  • Guo Kexing
    2025, 54(2): 9-17.
    Abstract ( 10 ) Download PDF ( 5 )   Knowledge map   Save
    The magnesium hydrogen storage alloy has the advantages of strong hydrogen storage capacity, rich source of raw materials, safety and reliability in recent years, but it still needs to solve the difficulties of slow hydrogen absorption and emission rate and relatively high activation energy. Therefore, this paper summarizes the research progress of hydrogen storage properties of magnesium hydrogen storage alloys in recent years, introduces the effects of preparation technology, catalyst and other treatment processes on the microstructure, thermodynamic properties and hydrogen storage properties of the alloys, and points out that the improvement of hydrogen storage properties should mainly focus on increasing Mg grain boundaries and weakening MG-H bounds.
  • Li Yutao, Tian Shuangyong, Xu Zhen, Song Hua, Cheng Qingqiang
    2025, 54(2): 18-25.
    Abstract ( 10 ) Download PDF ( 6 )   Knowledge map   Save
    In this paper, 7075 aluminum alloy solid substrate with surface roughness of 14.2μm, 9.3 μm, 8.1 μm is prepared, and 7075/1070a aluminum alloy composite plate is prepared by solid-liquid casting and rolling process. The influence of surface roughness of solid substrate on bonding behavior of 7075/1070A aluminum alloy composite plate is studied by laser confocal scanning microscope (CLSM), metallography microscope (OM), scanning electron microscope (SEM) and tensile shear test. The results show that: in the process of solid-liquid cast-rolling composite plate, the higher the surface roughness of solid substrate, the larger the diffusion width of composite plate elements and the higher the bonding strength of composite plate. When the surface roughness of solid substrate reaches 14.2μm, the bonding strength of composite plate is 53.6MPa and the element diffusion width is 5.2μm.
  • Liu Hulin, Zhang Mingyu, Zhang Tianwei
    2025, 54(2): 26-29.
    Abstract ( 6 ) Download PDF ( 5 )   Knowledge map   Save
    In this paper, TC11 titanium alloy is used as the experimental material. Under the condition of determined aging temperature, the solution temperature is changed, and instruments such as optical microscope, room temperature tensile property test and scanning electron microscope are used to investigate the changes in microstructure and tensile properties of TC11 titanium alloy after different solution aging treatments.It is found that when the solution temperature is in the two-phase region, the microstructure type of the alloy is a bimodal structure, and its structure is mainly composed of primary α phase and β transformation structure. With the increase of solution temperature, the content of primary α phase decreases and the volume of β transformation structure increases. When the solution temperature rises to the single-phase region, the primary α phase in the structure disappears completely and coarse β grains appear, and the structure type changes to fine lamellar β transformation structure. In the process of solid solution temperature changing from two-phase region to single-phase region, the strength of the alloy increases gradually with the increase of solid solution temperature, while the plasticity decreases with the increase of solid solution temperature. The tensile fracture morphology changes from dimple morphology to rock-like morphology, and the tearing prismatic appearance in the whole process is gradually obvious.
  • Wang Yan, Cao Hailong, Yang Senlin, Tian Yuxing, Zhang Yuchun, Zhang Qiujin
    2025, 54(2): 30-33.
    Abstract ( 9 ) Download PDF ( 5 )   Knowledge map   Save
    In this paper, 9.0%,13.0%,17.0% and 21.0% cold deformation of LD7-5 alloy extruded bars are obtained by extrusion and cold deformation. The microstructure and mechanical properties of LD7-5 alloy bars under different cold deformation are analyzed by means of scanning electron microscopy and mechanical property testing. The results show that with the increase of cold deformation, the number of recrystallized grains increases, and their size decreases and becomes equiaxed gradually. With the increase of cold deformation, the second phase in the alloy is broken more fully, the distribution is more uniform, and the number of grain boundaries is larger, the grain boundary area is larger, the strength and elongation are larger. Finally, the Hal-Petch formula describing the relationship between grain size and mechanical properties of LD7-5 extruded bars is established, which provides a certain basis for regulating the microstructure and properties of LD7-5 alloy extruded bars by applying cold deformation.
  • Zhou Jinxu, Wang Donghui, Ye Shumao, Tang Hongyang, Li Huan, Heng Junnan
    2025, 54(2): 34-40.
    Abstract ( 9 ) Download PDF ( 6 )   Knowledge map   Save
    In this paper, pulse laser welding technology is used to weld 1.2mm thick aluminum alloy and the influence of different laser power, pulse frequency and pulse width on weld forming is studied. The results show that laser power and pulse width have great influence on weld penetration and bonding width. Pulse frequency affects weld overlap rate. When the overlap area is greater than 50%, the weld surface is well formed. Metallographic results show that the weld is composed of fine columnar crystals and dendrites, there are fine columnar crystals near the fusion zone, and coarse-columnar crystals near the remelting boundary.
  • Cheng Wei, Sun Hongwei, Yang Yongshi, Ding Wuzhou
    2025, 54(2): 41-44.
    Abstract ( 7 ) Download PDF ( 8 )   Knowledge map   Save
    In this paper, the production process of GH3600 strip with a weight of 0.8 mm×1 219 mm×C mm and a unit weight greater than 4 tons is described. The main technical processes involved include VIM+ESR two-step melting, forging, hot continuous rolling, 20-high cold rolling and online heat treatment. After the final product inspection, the surface quality, chemical composition, mechanical properties, corrosion rate, etc. of the strip meet the requirements of ASTM B168, and meet the industry requirements of new energy manufacturing. After mass production verification, the quality of the strip produced by this technology is stable, and at the same time, it has laid a certain technological foundation for the scientific research and production of nickelbased superalloy strip in China.
  • Peng Hualing, Li Xinyi, Wan Li, Hu Xiaoping, Xia Rongkun
    2025, 54(2): 45-50.
    Abstract ( 7 ) Download PDF ( 6 )   Knowledge map   Save
    In this paper, the hardness, mechanical properties, coating color change, adlhesion properties, aging properties and other aspects of the profile detection are verified, and the process application of powder spraying profiles is realized, so as to greatly save the energy consumption and labor cost of the aging process and shorten the production cycle of the product under the premise of ensuring product performance and surface quality.
  • Yan Hui, Chen Jingge
    2025, 54(2): 51-53.
    Abstract ( 7 ) Download PDF ( 6 )   Knowledge map   Save
    As an important equipment in hot rolling or continuous rolling of aluminum ingot, this paper briefly introduces the key technology of aluminum ingot heating furnace, and puts forward the development direction of aluminum ingot heating furnace.
  • Yang Songtao, Hu Jianan, Kong Degang
    2025, 54(2): 54-56.
    Abstract ( 6 ) Download PDF ( 6 )   Knowledge map   Save
    This paper introduces a kind of wide-width and high-precision foil strip feeding device. The device drives the “S-shaped” belt movement through the electric roller, has the functions of expansion and swing, has a compact structure, and meets the feeding function of wide and high-precision foil strip.
  • Xiao Zhendong, Men Zhuanping
    2025, 54(2): 57-59.
    Abstract ( 9 ) Download PDF ( 7 )   Knowledge map   Save
    Aiming at the problem that the rolling oil cleanliness of a six-high mill segment cooling control system is not up to standard, the electromagnetic valve is frequently damaged during use, which leads to poor roll cooling effect, and the plate shape is not effectively controlled, resulting in quality defects on the strip surface, the mill performance and strip yield are improved by changing the segment cooling control mode, and the maintenance cost is saved.
  • Wang Youpeng , Liu Weichao
    2025, 54(2): 60-64.
    Abstract ( 10 ) Download PDF ( 4 )   Knowledge map   Save
    Based on the construction information coding system at home and abroad, this paper discusses the role of coding in the construction of non-ferrous metal processing engineering, and combines the specific application of information coding in the construction of digital delivery platform and digital delivery projects, and puts forward the important and difficult problems in problems in practice and solutions.
  • Zhang Yupu
    2025, 54(2): 65-66.
    Abstract ( 10 ) Download PDF ( 6 )   Knowledge map   Save
    This paper studies four aspects of the construction target, system architecture, function design and key technology of the spare parts cloud service platform system for non-ferrous metal processing industry. Provide the construction plan for the enterprise spare parts business platform, realize the efficient procurement of spare parts and dynamic sharing of spare parts inventory, and realize the efficient docking of upstream and downstream resources in the industry.
  • Yuan Heju, Zhang Hang
    2025, 54(2): 67-70.
    Abstract ( 9 ) Download PDF ( 4 )   Knowledge map   Save
    In view of the characteristics of a certain aluminum processing plant, such as aluminum foil waste, baling material, refined flanged waste, saw scrap of round ingot, and fine aluminum particles after slag treatment, the main equipment selection and program comparison of these waste treatment are discussed and analyzed.