Page 161 - 《摩擦学学报》2021年第6期

第 41 卷 第 6 期 摩 擦 学 学 报 Vol 41 No 6
2021 年 11 月 Tribology Nov, 2021

DOI: 10.16078/j.tribology.2020053

界面闪温对ZDDP反应膜生成特性的研究

*
石 伟, 蒲 伟 , 卫朋冲, 杨佳隆
(四川大学 空天科学与工程学院, 四川 成都 610065)

摘 要: 二烷基二硫代磷酸锌(ZDDP)作为最常见的发动机润滑油添加剂，通常认为ZDDP摩擦膜在较高的宏观环境
温度下产生，而忽视了局部区域的闪温变化对于膜生长的影响. 本文作者结合应力促进的热活化理论和润滑界面闪
温计算模型，以球-盘滑滚摩擦试验研究为主，进行了界面闪温对ZDDP摩擦膜生成特性的分析. 在载荷和环境温度
恒定的条件下，计算了不同界面滑滚比的闪温大小与分布，采用球-盘试验测得了常温下不同滑滚比的ZDDP润滑剂
摩擦系数变化趋势，并与计算得到的闪温模型对照，得到闪温对ZDDP反应膜生长的影响规律；为了改善ZDDP薄膜
导致的高摩擦，测试了硬脂酸钙与ZDDP的协同减摩效果. 结果表明：界面闪温的升高同样可以促进一定厚度的
ZDDP摩擦膜生长；硬脂酸钙润滑剂与ZDDP共同生成的边界膜可以有效地降低ZDDP带来的高摩擦力，可以用于改
善ZDDP摩擦膜的摩擦性能.
关键词: 二烷基二硫代磷酸锌; 闪温; 滑滚比; 摩擦膜; 硬脂酸钙
中图分类号: TH117.3 文献标志码: A 文章编号: 1004-0595(2021)06–0946–07

Effect of Flash Temperature on the Formation of
ZDDP Reaction Film

*
SHI Wei, PU Wei , WEI Pengchong, YANG Jialong

(School of Aeronautics and Astronautics, Sichuan University, Sichuan Chengdu 610065, China)
Abstract: As the most common additive of engine lubricating oil, zinc Dialkyldithiopho- sphate (ZDDP) has not yet
found a suitable substitute. It is generally considered that ZDDP film is produced at a higher macro environment
temperature, while the influence of local flash temperature change on the growth of ZDDP friction film is ignored. Based
on the thermal activation theory of stress promotion and the calculation model of lubrication interface flash temperature,
this paper focused on the ball-disk slip-rolling friction experimental research, and conducted the analysis of interface
flash temperature on the ZDDP friction film formation characteristics. The flash temperature and its distribution under
different interface slip roll ratios were calculated under the condition of constant load and ambient temperature. At room
temperature the variation of friction coefficient of ZDDP lubricant with different slip roll ratios was measured by ball-
on-disk experiment at room temperature, and compared with thecalculated flash temperature model, the effect of flash
temperature on the growth of ZDDP reaction film can be obtained. In order to improve the high friction caused by ZDDP
film, the synergistic effect of calcium stearate and ZDDP was tested. The results showed that the increase of interfacial
flash temperature can also produce ZDDP friction film of a certain thickness. The synergistic friction reduction
experiments of calcium stearate lubricant and ZDDP showed that calcium stearate lubricant improved the friction
performance of ZDDP friction film, and the boundary film formed by calcium stearate lubricant and ZDDP effectively
reduced the high friction caused by ZDDP.

Received 2 April 2020, revised 22 November 2021, accepted 24 December 2020, available online 28 November 2021.
*Corresponding author. E-mail: Pwei@scu.edu.cn，Tel:+86-15902851638.
The project was supported by the National Science Foundation of China (51875369) and the Chongqing key industry general key
technology innovation special major R & D projects (cstc2017zdcy-zdzxX0001).
国家自然科学基金项目(51875369)和重庆市重点产业共性关键技术创新专项重大研发项目(cstc2017zdcy-zdzxX0001)资助.