Preparation and Tribological Properties of Lanthanum Stearate Modified Lubricating Oil for Wire Rope in a Mine Hoist.
Preparation and Tribological Properties of Lanthanum Stearate Modified Lubricating Oil for Wire Rope in a Mine Hoist.
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硬脂酸酯修饰的灯笼润滑油的制备和摩擦学特性，用于矿山吊带中的钢丝绳。
DOI：
10.3390/ma14195821
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发表时间：
2021-10-05
期刊：
影响因子：
--
通讯作者：
Chen G
中科院分区：
文献类型：
--
作者：
Zhang Y;Zhang Q;Peng Y;Wang C;Chang X;Chen G
针对提升钢丝绳在恶劣的提升条件下因润滑失效而引起表面严重摩擦磨损的问题，对硬脂酸镧改性润滑油（LSMLO）的摩擦学特性进行了研究。首先通过皂化反应制备硬脂酸镧，并对其表面形貌、化学结构、热稳定性以及在IRIS-550 A钢丝绳润滑油（IRIS-550 A）中的分散稳定性进行了分析。通过四球摩擦试验和钢丝绳滑动磨损试验研究了LSMLO的摩擦学性能。结果表明，硬脂酸几乎完全反应生成硬脂酸镧，硬脂酸镧具有良好的热稳定性和无序的层状结构。油酸的加入可显著提高硬脂酸镧在IRIS中的分散稳定性。四球摩擦试验表明，IRIS中硬脂酸镧的最佳添加量为0.2wt%，与IRIS相比，LSMLO润滑时的CoF和磨痕直径分别减小约35%和25%。LSMLO比IRIS能更好地降低钢丝绳在不同滑动速度和接触载荷下的磨损，在高速低载荷下表现出更好的减摩抗磨性能。
In view of the serious friction and wear on the surface of a hoisting wire rope caused by the failure of lubrication under severe hoisting conditions, a study on the tribological characteristics of lanthanum stearate modified lubricating oil (LSMLO) was carried out. First, lanthanum stearate was prepared by the saponification reaction, and its surface morphology, chemical structure, thermal stability, and dispersion stability in IRIS-550A lubricating oil (IRIS) for wire rope were analyzed. Then, the tribological properties of LSMLO were investigated through four-ball friction tests and sliding wear tests of wire ropes. The results show that stearic acid almost completely reacts to produce lanthanum stearate, which has good thermal stability and a disordered layered structure. With the help of oleic acid, the dispersion stability of lanthanum stearate in IRIS can be significantly improved. The four-ball friction tests show that the optimal addition amount of lanthanum stearate in IRIS is 0.2 wt.%, and the CoF and wear scar diameter are reduced by about 35% and 25% respectively when lubricated with LSMLO compared to that with IRIS. LSMLO can better reduce the wear of the wire rope under different sliding speeds and contact loads than IRIS, and it exhibits improved anti-friction and anti-wear properties under high speed and low load.
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影响因子：
6.2
作者：
Wang, Jing;Guo, Xiaochuan;Gu, Kecheng
通讯作者：
Gu, Kecheng
影响因子：
--
作者：
Choudhary, Shivani;Mungse, Harshal P.;Khatri, Om P.
通讯作者：
Khatri, Om P.
影响因子：
5
作者：
Peng Yu-xing;Chang Xiang-dong;Xu Wen-xue
通讯作者：
Xu Wen-xue
DOI：
10.3390/ma10060630
发表时间：
2017-06-09
期刊：
Materials (Basel, Switzerland)
影响因子：
--
作者：
Chang XD;Peng YX;Zhu ZC;Gong XS;Yu ZF;Mi ZT;Xu CM
通讯作者：
Xu CM
影响因子：
6.2
作者：
Bai, Pengpeng;Li, Shaowei;Tian, Yu
通讯作者：
Tian, Yu