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Preparation and optimization of a soft magnetic brake friction material based on permalloy additive

Xiaoyang Wang (School of Mechanical and Electrical Engineering, China University of Mining and Technology School of Mechatronic Engineering, Xuzhou, China)
Jiusheng Bao (School of Mechanical and Electrical Engineering, China University of Mining and Technology School of Mechatronic Engineering, Xuzhou, China and State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Lanzhou, China)
Jinge Liu (School of Mechanical and Electrical Engineering, China University of Mining and Technology School of Mechatronic Engineering, Xuzhou, China)
Yan Yin (School of Mechanical and Electrical Engineering, China University of Mining and Technology School of Mechatronic Engineering, Xuzhou, China)
Tonggang Liu (School of Mechatronic Engineering, China University of Mining and Technology School of Mechatronic Engineering, Xuzhou, China)
Shaodi Zhao (School of Mechanical and Electrical Engineering, China University of Mining and Technology School of Mechatronic Engineering, Xuzhou, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 29 January 2021

Issue publication date: 4 March 2021

244

Abstract

Purpose

This paper aims to develop of magnetic field controlled friction braking technology, a novel brake friction material with magnetic was designed and prepared in this paper.

Design/methodology/approach

The permalloy, a soft magnetic material, was selected as an additive to design and prepare the magnetic brake material. The friction, wear performance and permeability of each brake pads were investigated by experiments. By choosing the performance of friction coefficient fluctuation, friction coefficient deviation and mean wear rate as optimization parameters, the formulation of the magnetic friction material was optimized based on Fuzzy theory by using analytic hierarchy process methods and SPSS software.

Findings

The results showed that the developed soft magnetic friction material has not only superior friction coefficient, permeability and inferior wear rate but also good physical and mechanical properties.

Originality/value

Permalloy powder was added to the formulation of friction material to achieve a new functional friction material with high magnetic permeability. It is believed that this research will be of great theoretical and practical significance to develop both new brake materials and active control technology of the braking process in the future.

Keywords

Acknowledgements

This study was financially supported in China by the National Natural Science Foundation of China (Grant No. 51875561), the Open Funds of State Key Laboratory of Solid Lubrication (Grant No. LSL-1805) and the Priority Academic Program Development of Jiangsu Higher Education Institutions.

Citation

Wang, X., Bao, J., Liu, J., Yin, Y., Liu, T. and Zhao, S. (2021), "Preparation and optimization of a soft magnetic brake friction material based on permalloy additive", Industrial Lubrication and Tribology, Vol. 73 No. 2, pp. 308-315. https://doi.org/10.1108/ILT-04-2020-0124

Publisher

:

Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

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