Results 11 to 20 of about 810 (177)

Tribological Performance of Phosphonium Ionic Liquids as Additives in Lithium Lubricating Grease

open access: yesLubricants, 2018
Three oil–miscible phosphonium ionic liquids with different structures were synthesized and used as additives for a Poly Alpha Olefin 10 (PAO 10) lithium lubricating grease. Different from other additives, the ionic liquids participated in saponification
Zeyun Wang, Jun Chang, Chao Cai
doaj   +3 more sources

Some azine and azole derivatives as antioxidant additives for lithium lubricating grease

open access: yesEgyptian Journal of Petroleum, 2013
Lubricating greases undergo extensive deterioration under the operation conditions and storage. Hydrocarbon chain is one of the major factors resulting in loss of the base fluid quality by formation of products having negative effects on the ...
Reda M. Fikry   +4 more
doaj   +3 more sources

Tribological Stress of Lubricating Greases in the Light of System Entropy

open access: yesLubricants, 2016
Lubricating greases show a structural degradation due to friction stress. The shear process dissipates energy. This results in a breakdown of the thickener structure, heat and entropy generation. Tribo-systems are energy driven systems.
Erik Kuhn
doaj   +3 more sources

An approach of the internal friction-dependent temperature changes for conventional and pure biogenic lubricating greases

open access: yesFriction, 2023
This work investigated the temperature changes inside the bulk of lubricating greases under controlled high-shear stress conditions (250–500 s−1). For this purpose, a newly developed temperature-measuring cell called Calidus was successfully tested.
Leif Ahme   +2 more
doaj   +2 more sources

Study on the Effect of Nano Zirconia Additive on the Tribological Properties of Lubricating Grease [PDF]

open access: yesCailiao Baohu, 2021
Aiming at studying the effect of nano zirconia as additive on the tribological properties of lubricating grease, the lubricating grease with different proportion of nano zirconia was prepared. The influence of nano zirconia on the tribological properties
JIA Qi-su, XU Shi-peng, ZHAO Jie-ge
doaj   +1 more source

Motion Analysis of Wire Rope Maintenance Device

open access: yesActuators, 2023
This work outlines a design for a wire rope maintenance device that is based on commonly used, low-dropping point lubricating grease for wire rope lubrication and operates along the strand’s twist direction.
Wei Wang   +5 more
doaj   +1 more source

Classification and spectrum optimization method of grease based on infrared spectrum

open access: yesFriction, 2023
The infrared (IR) absorption spectral data of 63 kinds of lubricating greases containing six different types of thickeners were obtained using the IR spectroscopy.
Xin Feng   +3 more
doaj   +1 more source

Investigation on the electrical conductivity and tribological properties of NbSe2-doped lubricating grease

open access: yesMaterials Research Express, 2022
Developing lubricants with good electrical conductivity and good tribological properties is necessary for the power equipment. Here, niobium selenide (NbSe _2 ) and boron nitride (BN) were employed to act as additives to fabricate the lubricating greases
Lining Wu   +4 more
doaj   +1 more source

Effect of thermorheological properties on tribological behaviors of lubricating grease

open access: yesMaterials Research Express, 2020
Lubricating grease has increased thermorheological properties during heating, which may affect the lubrication of the friction pair. And a friction pair usually heats up in the working process. This study explored the effect of surface temperature of the
Pan Jiabao, Yang Guangxin, Wang Jianping
doaj   +1 more source

Effects of Contamination on Selected Rheological and Tribological Properties of Lubricating Greases Working in Underground Mines

open access: yesLubricants, 2023
This study examines the effect of mining pollutants and wear products on the rheological and tribological properties of a lubricating grease working in the microclimate of the Polkowice-Sieroszowice mine belonging to the KGHM Polska Miedź Group ...
Maciej Paszkowski   +2 more
doaj   +1 more source

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