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Frictional Performance and Temperature Rise of a Mining Nonasbestos Brake Material during Emergency Braking
Joint Authors
Bao, Jiusheng
Li, Zengsong
Hu, Dongyang
Yin, Yan
Liu, Tonggang
Source
Advances in Materials Science and Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-04-30
Country of Publication
Egypt
No. of Pages
7
Abstract EN
By simulating emergency braking conditions of mine hoisters, tribological experiments of a mining nonasbestos brake material sliding on E355CC steel friction disc investigated a pad-on-disc friction tester.
It is shown that, under combined influence of braking velocity and pressure, the lubricating film and micro-convex-apices on wear surface would have complex physicochemical reactions which make the instant friction coefficient rise gradually while the instant surface temperature rises first and then falls.
With the antifriction effect from lubricating film and the desquamating of composite materials, the mean friction coefficient decreases first, then rises, and decreases again with the increasing of initial braking velocity.
And with the existence of micro-convex-apices and variation from increment ratio of load and actual contacting area, it rises first and then falls with the increasing of braking pressure.
However, the mean surface temperature rises obviously with the increasing of both initial braking velocity and braking pressure for growth of transformed kinetic energy.
It is considered that the friction coefficient cannot be considered as a constant when designing brake devices for mine hoisters.
And special attention should be paid to the serious influence of surface temperature on tribological performance of brake material during emergency braking.
American Psychological Association (APA)
Bao, Jiusheng& Li, Zengsong& Hu, Dongyang& Yin, Yan& Liu, Tonggang. 2015. Frictional Performance and Temperature Rise of a Mining Nonasbestos Brake Material during Emergency Braking. Advances in Materials Science and Engineering،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1053701
Modern Language Association (MLA)
Bao, Jiusheng…[et al.]. Frictional Performance and Temperature Rise of a Mining Nonasbestos Brake Material during Emergency Braking. Advances in Materials Science and Engineering No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1053701
American Medical Association (AMA)
Bao, Jiusheng& Li, Zengsong& Hu, Dongyang& Yin, Yan& Liu, Tonggang. Frictional Performance and Temperature Rise of a Mining Nonasbestos Brake Material during Emergency Braking. Advances in Materials Science and Engineering. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1053701
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1053701