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:A Numerical simulation of spiral magnetic field of electromagnetic stirring ZHAO Qian1, ZHANG Xing-guo1, ZHANG Huan-yue1, GUO Jian-she1, HOU Xiao-guang2, FANG Can-feng1 (1. School of Materials Science... current, stirring frequency and space position of the stirrer on the magnetic induction intensity and electromagnetic force were analyzed. The results show that the simulated magnetic field in the mold......
Magnetic pressure in electromagnetic aluminum tube-compression formingYU Hai-ping(于海平), LI Chun-feng(李春峰), ZHAO Zhi-heng(赵志衡),LI Zhong(李 忠), JIANG Hong-wei(江宏伟)(School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)Abstract:Magnetic pressure analysis lays the foundation of the study of electromagnetic forming. There has been not enough theoretical......
J. Cent. South Univ. (2019) 26: 158-167 DOI: https://doi.org/10.1007/s11771-019-3990-1 Electromagnetic emanation exploration in FPGA-based digital design Van Toan NGUYEN, Minh Tung DAM, Jeong-Gun.... As a consequence, electromagnetic emanation (EME) becomes a critical issue in digital system designs. Electronic devices must meet electromagnetic compatibility (EMC) requirements to ensure......
J. Cent. South Univ. (2020) 27: 1416-1423 DOI: https://doi.org/10.1007/s11771-020-4377-z Well-controlled stirring tank leaching to improve bio-oxidation efficiency of a high sulfur refractory gold... refractory gold concentrate with 41.82% sulfur and 15.12 g/t gold, of which 82.11% was wrapped in sulfide, a well-controlled stirring tank leaching was carried out to improve the bio-oxidation......
Study on Electromagnetic Shielding Effectiveness of Ni-P-La Alloy Coatings Ju Zhengting1,Yang Guangzhou1,Xuan Tianpeng1,Yang Lilin1 (1.College of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China) Abstract:Ni-P and Ni-P-La alloy coatings were prepared by electroplating. Electromagnetic shielding effectiveness under the different components of rare earth......
AZ61镁合金电磁搅拌的研究及力场分析 金俊泽1,郝海1,房灿峰1,张兴国1,季首华1 (1.大连理工大学,辽宁,大连,116024) 摘要:采用永磁体搅拌的方法制备了AZ61镁合金,对其组织和腐蚀性能进行了研究.以电磁场和磁流体动力学原理为基础,分析了旋转永磁体磁场内液态金属的受力.结果表明:液态金属在永磁体搅拌过程中,受到大小和方向周期变化的径向力和切向力;在这一效果(即电磁振荡)的作用下,凝固组织发生变化,进而影响到基体的腐蚀性能. 关键词:永磁体; 电磁搅拌; 镁合金; permanent magnet; electromagnetic stirring; magnesium alloy; [全文内容正在添加中] ......
Micro bulging of thin T2 copper sheet by electromagnetic formingZHAO Qing-juan, WANG Chun-ju, YU Hai-ping, GUO Bin, SHAN De-bin, LI Chun-feng(School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)Abstract:Electromagnetic micro bulging experiments on T2 copper were achieved in order to find the effects that different voltages and depths of mold work......
. [23] KANG C G, YOUN S W. Mechanical properties of particulate reinforced metal matrix composites by electromagnetic and mechanical stirring and reheating process for thixoforming[J]. Journal...,采用类似于40%复合材料制备的工艺过程直接制备不同体积含量的搅拌材料. 图1 机械搅拌铸造装置示意图 Fig. 1 Schematic diagram of mechanical stirring casting device 1.3 复合材料分析方法 复合材料浇注为d 25 mm×120 mm的圆柱形试样,然后从中间部位砸断试样观察复合材料的断口. 切取部......
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) and electromagnetic stirring (EMS) forces, individually and in combination, prior to high pressure die-casting of AA5754 alloy were assessed. The liquid of alloy was subjected to UT, EMS and the combined style... field. Key words: 5754 aluminium alloy; electromagnetic stirring; ultrasonic treatment; microstructure; die casting 1 Introduction Grain structure determines the mechanical properties and the structural......
