Tribological investigation of packing friction along the stem of a valve

被引：6
|
作者：
Ho, X. J. [1 ]
Saulot, A. [1 ]
Busquet, M. [1 ]
Berthier, Y. [1 ]
Torrance, A. A. [2 ]
Hersant, D.
机构：
[1] Univ Lyon, CNRS, LaMCoS, INSA Lyon,UMR 5259, F-69621 Villeurbanne, France
[2] Univ Dublin Trinity Coll, Dept Mech & Mfg Engn, Dublin 2, Ireland
来源：
TRIBOLOGY INTERNATIONAL | 2013年 / 65卷
关键词：
Friction; Wear; Seals; Packed glands;
D O I：
10.1016/j.triboint.2013.03.024
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A novel valve simulation rig, with a hollow instrumented stem, is used to measure indirectly the evolution of sealing pressure applied by compressed graphite packing as the stem reciprocates. By examining the surfaces of stem and packing after testing by microscopy and EDX, it is possible to define the tribological circuit which controls the behavior of the interface, and hence to explain the physics which underlies the experimental observations. This opens the way to novel and more effective methods for the design of stem seals for low friction and leakage. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：354 / 362
页数：9
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