二甲基硅油对ZrO2陶瓷摩擦副润滑性能的影响
Friction and Wear Properties of ZrO2 Ceramic Pairs Lubricated by Dimethyl Silicone Oil
何东海 1谭航 2向硕 1夏梓航 3杨鑫 1何燕 1罗根茂 1杜昕1
作者信息
- 1. 陆军勤务学院,重庆 401331
- 2. 32356 部队,青海 格尔木 816099
- 3. 重庆赛宝工业技术研究院有限公司,重庆 401332
- 折叠
摘要
通过四球摩擦试验机评定ZrO2 陶瓷球在二甲基硅油掺混基础油(CTL3、150N、GTL430 和PAO4)润滑下的抗磨减摩性能,采用三维轮廓仪对ZrO2 陶瓷球磨斑表面形貌进行分析,并测定基础油掺混比例对二甲基硅油运动黏度和密度的影响.结果表明:ZrO2 陶瓷球在二甲基硅油润滑下的平均摩擦系数和磨斑直径随其动力黏度增加均呈现先增加后保持平稳的趋势,ZrO2 陶瓷球在CTL3润滑下的平均摩擦系数和磨斑直径最小,ZrO2陶瓷球的平均摩擦系数和磨斑直径随二甲基硅油掺混CTL3 比例的增加均呈现先减小再增大的趋势;与二甲基硅油润滑下相比,掺混体积分数5%的CTL3后,ZrO2陶瓷球磨斑表面深度和表面粗糙度分别降低31.6%和25.3%;二甲基硅油的运动黏度和密度随CTL3 掺混比例增加而降低,掺混体积分数 5%的 CTL3 时,20℃下的运动黏度和密度分别降低6.2%和0.86%,基础油可以显著改善ZrO2 陶瓷摩擦副润滑性能,但对其运动黏度和密度也有明显影响.
Abstract
The anti-friction and anti-wear properties of ZrO2 ceramic ball were investigated under the lubrication of dimethyl silicone oil blended with base oils(CTL3,150N,GTL430 and PAO4)using a four-ball tribometer,and the worn surface morphologies of ZrO2 ceramic ball was characterized by 3D optical profilers(3D OP).The effect of base oil blending ratio on kinematic viscosity and density of dimethyl silicone oil was analyzed.It was found that the COF and WSD increased at first and then kept steady with the increase of dynamic viscosity when lubricated by dimethyl silicone oil,the COF and WSD reached the minimum value when lubricated by CTL3,and the COF and WSD decreased at first and then increased with the increase of blending ratio when lubricated by dimethyl silicone oil with CTL3.The wear depth and surface roughness of ZrO2 ceramic ball lubricated by dimethyl silicone oil with 5%volume fraction CTL3 decreased by 31.6%and 25.3%,respectively,compared to those of the dimethyl silicone oil.The kinematic viscosity and density of dimethyl silicone oil decreased with the increase of blending ratio,and the kinematic viscosity and density of dimethyl silicone oil with 5%volume fraction CTL3 at 20℃decreased by 6.2%and 0.86%,respectively,compared to those of the dimethyl silicone oil.Base oil could significantly promote the friction and wear properties of ZrO2 ceramic pairs,however,it also had obvious influence on its kinematic viscosity and density.
关键词
二甲基硅油/ZrO2陶瓷/斯塔宾格黏度计/抗磨减摩性能Key words
Dimethyl silicone oil/Zirconia ceramic/Stabinger viscometer/Anti-wear and anti-friction properties引用本文复制引用
出版年
2024
NETL
NSTL
万方数据