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Research on Preparation and Characteristics of a Novel Transmission Magnetorheological Fluid

Journal of Magnetics, Volume 23, Number 1, 31 Mar 2018, Pages 99-105
Chen Fei * (College of Mechanical and Electrical Engineering, China University of Mining and Technology), Tian Zuzhi (College of Mechanical and Electrical Engineering, China University of Mining and Technology), Wu Xiangfan (College of Mechanical and Electrical Engineering, China University of Mining and Technology), Wang Shuyou (College of Mechanical and Electrical Engineering, China University of Mining and Technology), Li Hao (College of Mechanical and Electrical Engineering, China University of Mining and Technology)
Abstract
On the basis of orthogonal experiment, a novel transmission magnetorheological fluid with synthetic ester chain oil as carrier fluid is prepared. The effect of single additive content on the apparent viscosity and settling stability of magnetorheological fluid is analyzed, and the characteristic evaluations are also carried out. The results indicate that the magnetorheological fluid containing 60 wt% carbonyl iron powder has an apparent
viscosity of 2.15 Pa·s and can attain the shear yield stress of 36 kPa when the magnetic field strength is 0.5T. Furthermore, the settlement rate of the MRF is less than 3% after two weeks. In comparison with the silicone
oil and mineral oil, the synthetic ester chain oil-based magnetorheological fluid has the lowest thermal expansion rate.
 
Keywords: preparation; settling stability; thermal expansion rate; magnetorheology; additives
DOI: https://doi.org/10.4283/JMAG.2018.23.1.099
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