2026 Volume 55 Issue 1
Published: 20 February 2026
  
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  • Pan Chuanji, Wang Huili
    2026, 55(1): 1-7.
    Abstract ( ) Download PDF ( )   Knowledge map   Save
    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.
  • Gu Zhancheng, Chen Sheng, Li Yinghua, Lin Qiuyu, Ping Jinfeng
    2026, 55(1): 8-14.
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    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.
  • Zhang Wangcheng, Peng Shichao, Wang Yilin, Liu Xu
    2026, 55(1): 15-21.
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    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.
  • Gui Xinghui, Zhou Yuli, Cheng Chuanqi, Zhang Yong, Ding Ronghui, Chen Wei
    2026, 55(1): 22-27.
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    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.
  • Yuan Heju
    2026, 55(1): 28-31.
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    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.
  • Chen Chuxiong, Tang Bin, Wang Yifu, Wang Dezhi
    2026, 55(1): 32-36.
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    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.
  • Wang Ruirui, Li Yongkai, Wang Chao, Zheng Haikun, Sheng Wei
    2026, 55(1): 37-41.
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    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.
  • Man Ruiping, Zhu Xiao, Li Xuechen, Ni Hui, Liu Shuchong
    2026, 55(1): 42-45.
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    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.
  • Huang Jingjing, Zhang Qi, Zhang Zhiyu, Li Bailin, Liu Chuang, GuoFeng
    2026, 55(1): 46-49.
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    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.
  • Tian Jinhong
    2026, 55(1): 50-51.
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    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.
  • Wang Jianmin
    2026, 55(1): 52-53.
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    This paper mainly introduces the key technologies and equipment research and development of the 55MN aluminum alloy wide and thick plate stretching machine. The calculation and explanation of multiple key points such as the stretching process, safety issues during the stretching process, the inertia research of the fixed and movable jaws, and the internal force of the main stretching cylinder are carried out. The possible problems that may occur during the stretching process are analyzed in detail, and detailed solutions are provided for each problem.
  • Men Zhuanping, Liu Weichao
    2026, 55(1): 54-58.
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    This paper proposes a small sample learning method for aluminum strip surface defects based on DenseNet, aiming to fully utilize the powerful feature extraction and learning capabilities of DenseNet, deeply analyze the feature differences of aluminum strip surface defects, and construct an efficient and accurate classification model.
  • Ruan XiaoJian
    2026, 55(1): 59-64.
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    This paper analyzes the generation, volume and quality of wastewater from copper foil surface cleaning. According to the characteristics of the drainage water quality, the wastewater is classified and treated to achieve zero discharge of enterprise wastewater and reduce environmental pollution.