Theory analyses and applications of magnetic fluids in sealing

D Li, Y Li, Z Li, Y Wang - Friction, 2023 - Springer
Magnetic fluids are the suspensions composed of magnetic nanoparticles, surfactants, and
non-magnetic carrier liquids. Magnetic fluids are widely used in various fields, especially in …

Influence of the solution pH on the design of a hydro-mechanical magneto-hydraulic sealing device

W Li, Z Li, Z Qin, S Yan, Z Wang, S Peng - Engineering Failure Analysis, 2022 - Elsevier
Owing to the different pH values of water resources in different places, it is not practical to
design hydraulic–mechanical magneto-hydraulic sealing devices under clean water …

Experimental visualization of the lifetime and self-healing of magnetic fluid seals

Z Li, G Zhu, X Li, W Li, Z Wang, Z Yuan - Vacuum, 2023 - Elsevier
The lifetime of magnetic fluid seals (MFSs) affects the ability to determine the relationship
between their lifetime, operating conditions, and gaps. In this study, we designed an MFS …

Experimental study of symmetrical ferrofluid seals with single magnetic source and small clearance

Y Liu, X Yang, X Dou, L Han - Tribology International, 2024 - Elsevier
To enhance the sealing pressure of normal ferrofluid seals with single magnetic source and
small sealing clearance, a symmetrical ferrofluid seal (SFFS) was designed. The study …

Failure mechanism of magnetic fluid seal for sealing liquids

X Li, X Fan, Z Li, M Zhu - Tribology International, 2023 - Elsevier
Magnetic fluid seals are contact-free rotary seals widely used to seal gas and vacuum.
However, their effectiveness declines when utilized to seal liquids due to the inherent …

Numerical and experimental investigation of the converging embedded magnetic fluid seal with a large diameter shaft and large sealing gap

X Yang, Y Liu, Y Guan, G Xie - Vacuum, 2023 - Elsevier
In order to enhance the pressure resistance of the ordinary magnetic fluid (MF) seal (MFS)
with a large diameter shaft and large sealing gap, the converging embedded MFS (EMFS) …

Experimental study on the pressure transfer mechanism of embedded magnetic fluid seals

Y Guan, X Yang - Tribology Transactions, 2022 - Taylor & Francis
Although the sealing mechanism of the embedded magnetic fluid seal is unclear, it is an
effective way to improve the performance of the ordinary magnetic fluid seal. Embedded …

Magnetic field simulation and experimental investigation of magnetic fluid seal based on rotating shaft

Z Chen, W Yuan, Z Song, Y Wang - Journal of Magnetism and Magnetic …, 2023 - Elsevier
Magnetic fluid seals are a new type of seal with zero leakage. Based on the requirements of
the working conditions, a magnetic fluid seal device applicable to rotating shafts was …

Optimal design of large gap magnetic fluid sealing device in a liquid environment

X Li, Z Li, B Zhu, J Cheng, W Li, J Yuan - Journal of Magnetism and …, 2021 - Elsevier
Magnetic fluid seals (MFSs) have been widely used as a gas seal because of its advantages
such as low wear, zero leakage, and long service life. However, the MFS is generally …

Experimental study of the magnetic fluid reciprocating seal in vacuum environment

X Yang, X Zhu, Y Lei, Y Huang - Vacuum, 2024 - Elsevier
To solve the problems of high leakage rate and short service life in vacuum equipment, a
magnetic fluid reciprocating seal (MFRS) device was designed. A MFRS vacuum test bench …