摘要
研究了等离子弧淬火表面网格对摩擦磨损性能的影响，对淬火网格表面形貌、金相组织、摩擦副之间的润滑状态等进行了分析。结果表明：在淬火网格α-β中，α方向的淬火带使表面产生油楔，形成边界流体润滑效应，α方向的淬火带90°-78°为最好；卢方向的淬火带起引导润滑油顺利进入接触表面和将润滑油封在菱形网格之中使油压进一步提高的作用，届方向的淬火带45°为最好。以这种方式设计的淬火网格可以使摩擦因数和功率损耗最低，抗磨性提高。
The quenching surface appearances, metallography organizations and the lubricating state of friction pair were studied and analyzed through testing the impact of plasma arc quenching surface grid on the friction and wear. The result shows that in the quenching grid α-β, the stripe of alpha direction produces wedge oil on the surface, as a result, a border fluid lubrication effect is formed. So in alpha direction the quenching stripe is at its best when it is 90° -78°. In the beta direction, the quenching stripe could lead the lubricants to go smoothly into the surface contact, and it could cover the lubricants tightly into the diamond grid which enhances the oil pressure and plays a better role in supporting. So it is at its best when the quenching stripe is 45°. In this way of design the quenching grid can decrease the friction and power loss to the minimum and can improve the antiwear property.
出处
《润滑与密封》
CAS
CSCD
北大核心
2007年第3期43-46,共4页
Lubrication Engineering
基金
辽宁省教育厅高等学校科研基金资助项目(990521028)
关键词
等离子弧淬火
淬火网格
金相组织
摩擦磨损
plasma arc quenching
quenched grid
metallography organization friction and wear
