Paper Title:
The Tribological Behaviors of the Surfaces Lubricated by Polyaklylene Glycol and Polyolester Oils in Carbon Dioxide Environment
  Abstract

The carbon dioxide (CO2) is investigated as an alternative refrigerant to replace HFC (hydro fluorocarbon) refrigerants in refrigerators and air conditioning systems due to the environmental concerns. Because new compressors with the carbon dioxide are going to be operated under the high pressure, the tribology of sliding surfaces in the compressor becomes very important. To develop new compressors, especially rotary type, the friction and wear characteristics of sliding surfaces between a vane and a roller in the rotary compressor were evaluated in this paper. Several hard coatings, such as TiN, CrN, and WC/C, were applied on vane surfaces in order to improve the tribological characteristics, and their performances were evaluated experimentally. The vane-on-disk type sliding tests were carried out under the various sliding speeds, normal loads, and carbon dioxide pressures with an exclusive high pressure wear tester. From the tests wear volume of vane surfaces applied various coatings were compared. During the tests coefficients of friction and surface temperatures were monitored. Test results showed that WC/C coatings showed good tribological properties. TiN and CrN coated vanes showed good wear resistance properties but produced high friction.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
1548-1551
DOI
10.4028/www.scientific.net/KEM.321-323.1548
Citation
S. D. Oh, T. S. Ahn, S. O. Cho, Y. Z. Lee, "The Tribological Behaviors of the Surfaces Lubricated by Polyaklylene Glycol and Polyolester Oils in Carbon Dioxide Environment", Key Engineering Materials, Vols. 321-323, pp. 1548-1551, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: He Zhuo Miao, Zhi Jian Peng, Long Hao Qi, Feng Shi, Wen Jie Si
Abstract:With a newly-developed technique, pulsed high energy density plasma (PHEDP), TiN, TiCN, and (Ti,Al)N coatings were deposited onto silicon...
1207
Authors: Si Young Chang, Ye Lim Kim, Byung Heum Song, Jae Ho Lee
Abstract:Ceramic coatings were synthesized on pure Mg and binary Mg-7.1wt%Al alloy by plasma electrolytic oxidation (PEO) technique, and the effect...
767
Authors: Takashi Murakami, T. Inoue, H. Shimura, Shinya Sasaki, Miki Nakano
Abstract:In this study, Fe-2.0Si-4.6C (mass%) gray cast iron disk specimens with three different matrix phases were coated with MoS2 using pressure...
788
Authors: Jian Hua Liu, Yi Hua Feng, Lei Shi, Qing Yu Zhang
Abstract:Arc ion plating technique PVD ZrN coatings were deposited on YT15 cemented carbide. Microstructural and fundamental properties of the ZrN...
1089
Authors: Yu Tong, Tian Wen Guo, Jing Wang, Hai Feng Liang, Qian Mi
Chapter 15: Surface Engineering/Coatings
Abstract:Two different surface engineering technologies, plasma nitriding and titanium nitride (TiN) film deposition by closed-field unbalanced...
1646