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椭球的磁化状态对磁选的影响尚衍波1,徐建民1,宋海莲2(1.北京市北京矿冶研究总院 矿物加工科学与技术国家重点实验室2.北京市石景山区业余大学,北京 100043)摘 要:通过计算磁场里的铁磁性椭球内部及外部的磁场,说明了随着椭球材料磁导率的减小,椭球的聚磁能力下降,同时为提高磁场吸引矿粒的力所需增加的电耗更多.关键词:选矿工程; 磁选; 磁吸引力; 磁饱和; 椭球......
confirmed the adsorption of magnetic seeds onto minerals, resulting in a decreased threshold magnetic field intensity for the MSA to happen. Then atomic force microscope (AFM) study found that there exists a long range force between magnetic seeds and minerals, which facilitates the adsorption of magnetic seeds on minerals. FTIR shows both the polyacrylamide and starch adsorbed onto minerals and magnetic......
, Shanghai University, Shanghai 200072, China) Abstract: Based on the relationship between the magnetization force of substance in a gradient magnetic field and its magnetic permeability, a method to detect phase transformation of metal by means of measuring the force was proposed. By this method, the 355℃ peritectic transformation of Bi-Mn alloys in a high magnetic field was measured, and thermodynamics......
J. Cent. South Univ. Technol. (2011) 18: 458-464 DOI: 10.1007/s11771-011-0718-2 Optimal design of FRMSM to decrease detent force JANG Ki-Bong, PYO Se-Ho, AN Ho-Jin, KIM Gyu-Tak School... synchronous motor (FRLSM) with the optimal number of attachment permanent magnets (PMs) was presented. The optimal model of 2 000 N was designed to reduce the detent force by redesigning the air-gap......
magnetic field By. The lorentz force Fx=Jz×By=(σvx×By)×By is produced by the interaction between the inductive electric current and the high magnetic field. Here, σ is the conductivity and vx is the flow velocity of liquid. The direction of Lorentz force Fx opposes to the direction of liquid flow vx. Then the flow of liquid is controlled by Lorentz force. This means that high magnetic field can......
Magnetic properties of microwires As illustrated in Fig.4, the hysteresis curve of a single Fe-rich microwire exhibits typical squared loop with coercive force of 120 A/m, which is associated... Magnetic and microwave properties of glass-coated amorphous ferromagnetic microwires DI Yong-jiang(邸永江), JIANG Jian-jun(江建军), DU Gang(杜 刚), TIAN Bin(田 斌), BIE Shao-wei(别少伟), HE Hua-hui(何华辉......
Preparation and magnetic property of multi-walled carbon nanotube/α-Fe2O3 composites CHEN Chuan-sheng(陈传盛)1, 2, LIU Tian-gui(刘天贵)3, CHEN Xiao-hua(陈小华) 2, LIN Liang-wu(林良武)1, LIU Qi...: In order to attain new functional nanomaterials with good magnetic property, multi-walled carbon nanotubes/hematite (MWNTs/α-Fe2O3) composites were synthesized using the co-deposition method. MWNTs......
Magnetic force distribution and deformation law of sheet using uniform pressure electromagnetic actuator CUI Xiao-hui, MO Jian-hua, XIAO Shi-jie, DU Er-hu State Key Laboratory of Material Processing...-DYNA to analyze the deformation law of the sheet. Key words: electromagnetic sheet forming; magnetic force; uniform pressure electromagnetic actuator; numerical method 1 Introduction Electromagnetic......
and then it is substituted into the magnetic field model. The fluid flow model was solved with the acquired electromagnetic force. The effects of pulse voltage frequency on the current wave... circuit is solved first and then it is substituted into the magnetic field model. Finally, the fluid flow model is solved with the acquired electromagnetic force in the magnetic field model. Fig.2......
current. Owing to the excellent magnetic performance including high magnetic permeability, low coercive force and near-zero magnetostriction, Fe-6.5Si alloy is believed to be a good candidate to realize... J. Cent. South Univ. (2021) 28: 1266-1278 DOI: https://doi.org/10.1007/s11771-021-4694-x Performance improvement of Fe-6.5Si soft magnetic composites with hybrid phosphate-silica insulation......