Investigation into Friction and Wear Behaviors of Copper-Based Graphite Seal Material

doi:10.7652/xjtuxb201709013

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Investigation into Friction and Wear Behaviors of Copper-Based Graphite Seal Material

更新时间：2025-07-09

- Investigation into Friction and Wear Behaviors of Copper-Based Graphite Seal Material
- Vol. 51, Issue 9, Pages: 92-97(2017)
- 作者机构：
  
  西安交通大学现代设计及转子轴承系统教育部重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201709013
  CLC： TH117
- Online First：10 September 2017，
  
  Published：2017
- 稿件说明：
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Investigation into Friction and Wear Behaviors of Copper-Based Graphite Seal Material[J]. 2017, 51(9): 92-97.
DOI：

Investigation into Friction and Wear Behaviors of Copper-Based Graphite Seal Material[J]. 2017, 51(9): 92-97. DOI： 10.7652/xjtuxb201709013.

摘要

为研究液体火箭发动机密封材料——铜基石墨材料的摩擦磨损规律

采用销盘试验考察了铜基石墨材料在干摩擦和水润滑条件下的摩擦磨损性能和磨损机理

探讨了速度、载荷、摩擦温升对材料摩擦磨损性能的影响

结果表明:水润滑条件下不易形成铜基石墨转移膜

所以水润滑时的摩擦因数比干摩擦时的摩擦因数大; 水润滑下

磨损机理为黏着和磨粒磨损

适当增加载荷、降低速度有利于降低铜基石墨材料的磨损率; 干摩擦下

磨损机理为黏着磨损

适当降低载荷、提高速度有利于降低铜基石墨材料的磨损率。

Abstract

The friction and wear behaviors of copper-based graphite seal material used in liquid rocket engine were investigated by means of pin-on-disk machine. The effects of load

velocity and temperature rise on friction and wear behaviors of the copper-graphite material were analyzed. Results show that: 1)It is not easy to form copper-graphite transfer film under water lubrication condition

so the friction coefficient under water lubrication condition is higher than that under dry friction; 2)Under the condition of water lubrication

the wear mechanism is adhesive wear and abrasive wear

and properly increasing load and decreasing velocity can reduce the wear rate of the copper-based graphite material; and 3)Under the condition of dry friction

the wear mechanism is adhesive wear

and properly decreasing load and increasing speed can help reduce the wear rate of copper-based graphite material.

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references

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