Preparation of Ferrofluid Sealing Ship Stern Shaft and Design of its Seal Structure


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Ferrofluid is prepared with the chemical method in order to seal the ship stern shaft. Three types of ferrofluid are obtained. Their magnetic particles all are Fe3O4, but their base solutions are separately water, oil and fluorine ether oil. Experimental results show that the value of saturated magnetic intensity of oil based ferrofluid is higher than the others, and its seal performance is better. Viscosity and density of fluorine ether oil based ferrofluid are the highest. Under the effect of the additional magnetic field, the pressure drops of water or oil sealed by water based ferrofluid are all lower, but the pressure drop of water sealed by oil based ferrofluid is close to an ideal value. Therefore, it has practical value that oil based ferrofluid is used as sealing liquid of ship stern shaft.



Edited by:

Daizhong Su, Kai Xue and Shifan Zhu






E. X. Yang et al., "Preparation of Ferrofluid Sealing Ship Stern Shaft and Design of its Seal Structure", Key Engineering Materials, Vol. 486, pp. 167-170, 2011

Online since:

July 2011




[1] Wang Ruijin, Cao Miaolong. Principle and Application of Ferrofluidics Sealing. General Machinery, 2005 (2), pp.54-58.

[2] Yang Enxia, Liu Heping, Yi Chuanbo, Dong Yan. Design and experimental research on ester ferrofluid seal for stern. Key Engineering Materials, Vol. 419 – 420 (2010), pp.209-212.

DOI: 10.4028/

[3] Lin Benlan, Shen Xiaodong, Cui Sheng. Study on Preparation and Effect of Nanosized Fe3O4 Magnetic Organic Fluids. Lubrication Engineering, 2006 (10), pp.137-140.

[4] Zhang Wenjun, Chai Bo, Zhang Huifang, et al. Study on Preparation and Properties of Fe3O4 Magnetic Fluid by One Step Method with a Micro Emulsion Reactor. Lubrication Engineering, 2005 (2), pp.57-58.

[5] Zhang Baofeng, Guo Fengbiao, Li Wenrun. A study on the experiment for manufacturing magnetic fluid. College Physics, 2002, 21 (6 ), p.33.

[6] Yang Enxia, Ying Lixia, Yu dafa. The Fabrication and Properties of Magnetic Fluid Seal at the Stern Shaft. Lubrication Engineering. 2008 (10), pp.31-33.

[7] Liu Tonggang, Yang Zhiyi. Design Optimization of Seal Structure of Liquid Sealing by Magnetic Fluids. Tribology, 2003,23 (4), pp.353-355.

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