Research on the Friction and Wear Properties of the NBR under Dry Sliding and Water Lubrication

Abstract:

The wear mechanisms of different graphite contents of NBR by 45# steel under dry sliding and water lubrication were investigated. On MPV-600 computer-controlled abrasive wear testing machine, the coefficients of friction were measured continuously. Results showed that under dry sliding condition, the rubber wear loss is big, the coefficient of friction is higher, the temperature of the friction surface is rise obviously. Wear loss and friction coefficient of NBR decrease with the increase of graphite contents; With the increase of graphite contents wear loss and the friction coefficient decreases, and is mainly due to the graphite lubrication performance and increase the stiffness of the rubber contact area. At low content of graphite, adhesive wear of NBR is showed, in the high content of graphite, abrasive wear is showed. Water lubrication condition, wear surface level off, the wear loss is very small, and the lubrication and cooling effect of water makes the friction coefficient decrease. Graphite content is higher, the wear loss and coefficient of friction is smaller.

• Periodical: Applied Mechanics and Materials (Volume 420)
• Pages: 234-239
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.420.234
• Online since: September 2013
• Authors: Feng Yan Yang, Shi Jie Wang, Xiao Ren Lv
• Keywords: Friction, Graphite, Nitrile-Butadiene Rubber (NBR), Wear

References

[1] Wang Shijie, Li Qin. Submersible Screw Pump Oil Production Technology and System Design[M]. Beijing: Beijing metallurgical industry press, 2006. (in Chinese).

[2] Wang Guiyi. Rubber deoxidize the coppers[J]. Special rubber products, 2000, 21(3: 55-62). (in Chinese).

[3] Fukahori Y, Yamazaki H. Mechanism of rubber abrasion part 3: how is friction linked to fracture in rubber abrasion [J]. Wear, 1995, 188: 19-26.

DOI: 10.1016/0043-1648(94)06571-3

[4] Zhang Siwei. Rubber Wear Principle[M]. Beijing: Beijing Petroleum Industry Press, 1998. (in Chinese).

[5] He Renyang, Zhang Siwei, Wang Deguo. Wear Mechanisms of AISI1020 steel against natural rubber under dry sliding[J] . Tribology, 2001, 21(4): 260-265.

[6] Xu,D., Karger-Kocsis, J. , Major, Z. , Thomann, R. Unlubricated rolling wear of HNBR/FKM/MWCNT compounds against steel. Journal of Applied Polymer Science, v 112, n 3, pp.1461-1470, (2009).

DOI: 10.1002/app.29513

[7] Zhang Si-Wei, He Ren-Yang. Advances in the study on wear of metals by polymers. Journal of Materials Science, v 39, n 18, pp.5625-5632, (2004).

[8] Yang Jian, Shi Jungong, Tian Ming, Zhang Liqun. Nitrile rubber graphite antifriction materials. era of new material cup the fourth session of the national rubber products technical symposium proceedings.

[9] Wang Youqiang, Lin Xiujuan, Li Zhiwen. friction and wear mechanism of Water lubrication bearings rubber/nickel coating pair. Materials for Mechanical Engineering, 2006, Vol. 30, No. 3-65.

[10] Lin Xiujuan, Wang Youqiang. Rubber bushing/ steel friction and wear mechanism of water lubricated rubber bearings. The Research Progress of Qingdao Construction Engineering College Journal, 2004, Vol. 25 No. 2: 8 and 6-89.