Materials screening of matching pairs in a water hydraulic piston pump

Liu Yinshui; Defa Wu; Xiaofeng He; Li Zhuangyun

doi:10.1108/00368790910953695

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Industrial Lubrication and Tribology

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Materials screening of matching pairs in a water hydraulic piston pump

Document Information:
Title:	Materials screening of matching pairs in a water hydraulic piston pump
Author(s):	Liu Yinshui, (School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, China), Defa Wu, (School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, China), Xiaofeng He, (School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, China), Li Zhuangyun, (School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, China)
Citation:	Liu Yinshui, Defa Wu, Xiaofeng He, Li Zhuangyun, (2009) "Materials screening of matching pairs in a water hydraulic piston pump", Industrial Lubrication and Tribology, Vol. 61 Iss: 3, pp.173 - 178
Keywords:	Friction, Hydraulic equipment, Metals, Plastics, Pumps, Wear
Article type:	Research paper
DOI:	10.1108/00368790910953695 (Permanent URL)
Publisher:	Emerald Group Publishing Limited
Acknowledgements:	The authors would like to thank the Ministry of Science and Technology of PRC (No. 2006BAF01 B 03-02) and National Natural Science Foundation of China for providing the funding for this project. Thanks are also given to Dr Tang Qunguo and Professor Yang Shudong for their contributions to the study.
Abstract:	Purpose – The purpose of this paper is to present some design guidelines for the selection of the materials of the main frictional pairs in a water hydraulic piston pump. Design/methodology/approach – In the research, a specified test bench that can simulate the typical frictional pairs in a water hydraulic piston pump was built. The friction and wear behaviors of the three pairs in the pump with different materials combinations were tested on the test bench. The tested materials included metal, engineering ceramics and plastics. Some surface engineering technologies including plasma surface spray, laser clad and heat treatment were applied and tested. The matching schemes included hard-to-hard (such as ceramics-to-ceramics) and hard-to-soft (such as metal-to-plastics, ceramics-to-plastics). Findings – Some principles for the materials selection in a water hydraulic piston pump were obtained. According to the test results, the combination schemes for the main frictional pairs in a water hydraulic piston pump were proposed. Originality/value – A test apparatus that could simulate the movement of main frictional pairs in a water hydraulic piston pump more really than the other general materials machines was developed. Some materials including metal, engineering ceramics and plastics and some engineering technologies were tested. The research described here is an important foundation for the development of a water hydraulic piston pump.