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Recent Patents on Nanotechnology

Author(s): Jiusheng Bao*, Shaodi Zhao*, Yan Yin, Xingming Xiao, Mark E. Tuttle and Tonggang Liu

DOI: 10.2174/1872210513666190308133036

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Development of a Novel Magnetic Brake Shoe for Mine Hoists Based on Nano-Fe3O4 and Nd-Fe-B Additive

Page: [139 - 150] Pages: 12

  • * (Excluding Mailing and Handling)

Abstract

Background: The brake is an important safety protection device for mine hoists, in which the performance of the brake shoe affects directly the safe operation of the hoist system. In order to solve problems such as high wear rate and unstable friction coefficient of brake shoe under high temperature, this paper indicated that adding magnetic powder to the composite material of traditional mine hoist’s brake shoe will be a creative and effective approach to improve its properties.

Methods: Based on relevant China patents of the authors, several new formulas of brake shoe material were designed in the presence of Nano-Fe3O4 and Nd-Fe-B, and the methods of both preparation and performance testing of the magnetic brake shoes were introduced. The experiment of formula design was carried out by uniform prescription design, and the friction coefficient and wear rate of each kind of brake shoes made through different formulas were measured. Furthermore, the formula was optimized by application of fuzzy comprehensive evaluation method and analytic hierarchy process.

Results: Compared with ordinary formulas, the optimized formula is higher totally and changes more steadily as well. Its wear rate is far lower than the national standard. Namely, its comprehensive properties are better. Few relevant patents to the topic have been reviewed and cited.

Conclusion: This paper proved that it is practically valuable and feasible to improve the properties of hoist brake shoes by adding magnetic powder to its composite material.

Keywords: Brake material, magnetic powder, friction and wear, properties, magnetism, preparation, formula optimization, formula design.

Graphical Abstract

[1]
Bao JS, Yin Y, Lu YH, Hu DY, Lu LJ. A cusp catastrophe model for the friction catastrophe of mine brake material in continuous repeated brakings. P I Mech Eng J-. J Eng 2013; 227(10): 1150-6.
[2]
Bao JS, Zhu ZC, Yin Y, Chen GA. Influence of initial braking velocity and braking frequency on tribological performance of non-asbestos brake shoe. Ind Lubr Tribol 2009; 61(6): 332-8.
[3]
Bao JS, Zhu ZC, Tong MM, Yin Y, Peng YX. Influence of braking pressure on tribological performance of non-asbestos brake shoe for mine hoist during emergency braking. Ind Lubr Tribol 2012; 64(4): 230-6.
[4]
Chu GC, Ruan HD, Zhao H. A preparation method of mine hoist brake shoes China Patent CN2005100174061, 2005
[5]
Bao JS, Yin Y, Hu DY, et al. Formulation and manufacturing method of nano superparamagnetic brake shoe for mine hoist China Patent CN2014101838497, 2014
[6]
Bao JS, Hu DY, Yin Y, et al. Formulation and manufacturing method of soft magnetic brake shoe material for mine hoist China Patent CN2014101874277, 2014
[7]
Bao JS, Hu DY, Yin Y, et al. Formulation and manufacturing method of soft magnetic brake pad material for automobile China Patent CN201410183850X, 2014
[8]
Bao JS, Hu DY, Yin Y, et al. Formulation and manufacturing method of hard magnetic brake shoe material for mine hoist China Patent CN2014101855670, 2014
[9]
Bao JS, Yin Y, Hu DY, et al. Formulation and manufacturing method of nano ferromagnetic brake shoe for mine hoist China Patent CN2014101839451, 2014
[10]
Xu XY, Zhao YT, Dai QX, Fu MX, Li CS. Development and research process of magnetic composites. Mater Rev 2005; 19(7): 69-71.
[11]
Chen SM, Zhang YH, Xiong HB. Polymer-based magnets. Synthetic Mat Aging Appl 2003; 32(4): 26-30.
[12]
He SQ. Research on performance of fraction and wear of Fe3O4 MNBR. Master Thesis. Lanzhou: Lanzhou University of Technology 2018
[13]
An XY. Research on performances of NdFeB magnetic nitrile buladience rubber Master Thesis Lanzhou: Lanzhou University of Technology 2008.
[14]
Lu CX. Research on friction and wear properties and mechanisms of the composite brake shoes material with high-friction coefficient Master Thesis Beijing: Beijing Jiaotong University 2015.
[15]
Liu Y, Bao JS, Hu DY, Ge SR, Yin Y, Liu TG. A review on the research progress of nano organic friction materials. Recent Pat Nanotech 2016; 10(1): 11-9.
[16]
Fang KT. Uniform design and uniform design table. Beijing: China Science Press 1994; pp. 30-45.
[17]
Hu BQ. Fuzzy theory foundation. 2nd ed. Wuhan: Wuhan University Press 2010; pp. 330-446.
[18]
Gou ZM, Lin RG. An optimization method of car friction material formula. Mech Eng Mater 2011; 35(8): 33-6.
[19]
Zhang BJ. Analysis hierarchy process and application cases. Beijing: Publishing House of Electronic Industry 2014; pp. 156-7.
[20]
Do JY, Kim DK. AHP-based evaluation model for optimal selection process of patching materials for concrete repair: Focused on quantitative requirements. Int J Concr Struct M 2012; 6(2): 87-100.
[21]
Han HB, Du SM, Zhang YZ, Liu H, Pan RMR. Effect of DC magnetic field on friction and wear properties of 45 steel at different velocities. Tribol Lett 2016; 64(3): 38.
[22]
Xu YJ, Mo JL, Wang CX, Zhang X. Effects of a horizontal magnetic field on unstable vibration and noise of a friction interface with different magnetic properties. Tribol Int 2018 120(2018): 47- 57.
[23]
Wei YH, Zhang YZ, Chen Y. Influence of magnetic field interfering on dry-sliding tribological characteristics of materials with different magnetic properties. J Mech Engi 2012; 48(23): 102-10.
[24]
Wang FM, Xie JP, Li Y, Ma DQ, Liu S. Effects of magnetic field on dry Tribological characteristics of W-20Cu /45 steel friction pairs. Tribology 2015; 35(3): 288-94.
[25]
Wei WH, Wang XL, Liu YP, Jiang ZQ, Feng XZ. Research progress in DC magnetic field dry friction of metallic materials. Surf Technol 2017; 46(11): 223-9.
[26]
Wang FM. Study on the wear behavior and mechanism of W-20Cu composites under magnetic field Master Thesis Luoyang: Henan University of Science and Technology 2015.
[27]
Ren GP. Effect of /TC4 pairing relationship on friction and wear properties of 45 steel in magnetic field. Master Thesis. Luoyang: Henan University of Science and Technology 2014.
[28]
Kong XH, Yang M, Wang S. Material physical basis. Beijing: Metallurgical Industry Press 2010; pp. 102-12.