...Menderes Kalkat Purpose – The purpose of this paper was to perform an experimental investigation to analyze vibration and noise of unloaded gearbox with different oil quality. All motor-driven machinery used in the modern world can develop faults. The maintenance plans include analyzing...

...Yanzhong Wang; Bin Wei Purpose – The purpose of this study is to investigate wet multi-disc brake temperature field and optimal oil supply under continuous braking condition. The oil supply of wet multi-disc brake has a direct impact on the drivability and fuel economy for tracked vehicles. Too...

...G.D. Thakre; M.R. Tyagi Purpose The purpose of this paper is to study the performance variability of the commercially available engine oils based on physico‐chemical and tribological performance parameters. Design/methodology/approach The study does this by evaluation of physico‐chemical...

... basestocks with similar viscosities were compared experimentally in a 30‐80 h degradation test. Thin films (30‐50 μm) of oils were placed on the steel surface and heated to 130‐140°C with periodic cooling to room temperatures for gravimetric measurement of volatile losses. Findings Mineral oils lost some...

...Jianlin Sun; Huang Ying; Mingyu Lu Purpose The purpose of this paper is to conduct a comprehensive experimental study to achieve optimal surface roughness of aluminum rolled with freshly ground rollers of two high rolling mills. Design/methodology/approach Various rolling oils and processing...

... (reduced P and S) anti‐wear additives for future engine oil formulations. The paper presents both the statistical and experimental solution to the fluorinated interactions in fully formulated (F‐fully formulated) and plain ZDDP (F‐plain) oils. Design/methodology/approach The wear performance...

.../methodology/approach A lot of set mixtures in this work were formulated to get the demand needed for soluble oil metalworking fluids. It was based on a blend of emulsifier package (anionic‐non ionic), and in order to reach acceptable manufacturing conditions, coupling agent, stabilizer, biocide, base oil...

...Gabi Nehme Purpose The purpose of this paper is to study the friction and wear performance of two plain ZDDP oils in the presence of fluorinated catalyst and PTFE combinations under extreme boundary lubrication of 385 Newton load (Hertzian contact pressure of 2.72 GPa). The mechanism of tribofilm...

... alloys. The purpose of this paper is to investigate the synergistic effects of one type of calcium borate nanoparticles modified by oleic acid (code to CaBN) and sulfurized olefin, in a kind of mineral base oil MVIS 250, in order to find a potential substitute for sulfurized olefins. Design...

...Lifeng Hao; Jiusheng Li; Xiaohong Xu; Tianhui Ren Purpose Nanoparticles are not well dispersed in non‐polar organic solvents due to their hydrophilic property which limits their applications in lubricant oils. To improve the oil‐solubility of nanoparticles, a novel technology was used to prepare...

...Qingrui Meng; Youfou Hou Purpose The purpose of this paper is to reveal the effect of working oil temperature, load and starting time on hydro‐viscous drive speed‐regulating start. Design/methodology/approach The authors developed an experimental equipment and carried out a number...

...M. Abdullah Dar Purpose The purpose of this paper is to make people aware of organic corrosion inhibitors. Design/methodology/approach As it is a literature review paper, no specific method is used. Findings It has been found that plant extracts and oils show inhibition efficiency up to 98...

...Babur Ozcelik; Emel Kuram; Erhan Demirbas; Emrah Şik Purpose The purpose of this paper is to investigate the performance of four cutting oils, two different vegetable‐based cutting fluids developed from refined sunflower oil and two commercial types (semi‐synthetic and mineral), for surface...

...Fangwei Xie; Youfu Hou Purpose The purpose of this paper is to reveal the characteristics of hydrodynamic load capacity and torque transferred by oil film with variable viscosity, and the effect of groove number, width and depth on the hydrodynamic load capacity and torque transfer. Design...

.../methodology/approach A tribological study on the lubrication performance of a lubricant‐based palm oil (PO) containing anti‐wear and antioxidant combined corrosion inhibitor additive was carried out using a universal sliding wear machine. In this experiment, amine phosphate and NPAA were selected as additive...

...Jian Fang; Yubin Sun; Yanqiu Xia; Weimin Liu Purpose The purpose of this paper is to understand the effect of base media on the tribological performance and tribochemistry of bismuth thiophosphate additive. Design/methodology/approach The oil‐water double soluble additive bismuth...

...Franc Majdic; Jozef Pezdirnik Purpose Environmental protection regulations are becoming increasingly strict. Using water instead of a hydraulic mineral or biodegradable oil in power‐control hydraulic systems is a very positive step towards complying with these regulations. Since water hydraulics...

... implications All the cyclophosphazene derivatives present better tribological performance and could be used as base oils, such as hard disk surface lubricants. Originality/value Ionic liquids are introduced to cyclophosphazene derivatives in this paper. This is a new method to improve the tribological...

...Yanyan Fu; Xianguo Hu; Yufu Xu; Xifeng Zhu; Shaotong Jiang Purpose When carrying out bioremediation of water polluted by biomass‐oil, the stains which can degrade the biomass‐oil efficiently should first be found. The purpose of this paper is to describe how adopted acclimation through...

...Mitko I. Nikolov; Nina N. Gospodinova; Dimitar J. Pavlov; Mitko S. Dimitrov Purpose The purpose of this paper is to determine and compare the tribological characteristics (weight wear and friction moment) of a friction couple C45/C330 at running‐in with motor oil SAE 30 and different friction...