摘要
开展复合锂基润滑脂与不同比例钻井液混合条件下滑动轴承单元摩擦学实验,研究钻井液对滑动轴承摩擦磨损性能的影响机理及密封泄漏工况下表面织构的润滑、减磨性能。结果表明:钻井液中碳酸钙和重晶石等颗粒造成的犁沟和微切屑作用加快滑动轴承磨损,钻井液比例越高,磨损越严重,导致滑动轴承由于快速磨损而失效;表面织构能有效捕获碳酸钙和重晶石等颗粒物质,减轻钻井液引起的负面效果,延长密封泄漏工况下滑动轴承的使用寿命。
In order to study the influence mechanism of drilling fluid on friction and wear of sliding bearing and the influence of texture on tribological properties of sliding bearing, the unit tribological experiments of sliding bearing were carried out in compound lithium grease mixed with different ratio drilling fluid. The result shows that the furrows and micro-cutting action wear resulting from particles in drilling fluid, such as calcium carbonate and barite particles, will speed up the wear of sliding bearing. The higher proportion of drilling fluid leads to more serious wear, and then resulting in sliding bearing failure due to rapid wear. Surface texture can effectively capture calcium carbonate and barite particles, reduce the negative effective caused by drilling fluid, and extend the service life of sliding bearing under the working condition of seal leakage.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2017年第3期12-16,共5页
Ordnance Material Science and Engineering
基金
国家自然基金项目(51505397)
关键词
滑动轴承
钻井液
表面织构
摩擦磨损
sliding bearing
drilling fluid
surface texture
friction and wear
