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, and the best anti-wear properties were obtained with compounded lubricating oil containing 0.6% copper powders. The anti-wear mechanism during lubrication with compounded lubricating oil containing.... The addition of the copper powders obviously improves the anti-wear properties of the lubricating oil owing to their good self-repairing performance. Compared with 48# industrial white lubricating oil......
produce different lubrication effects and their optimal application temperature will be different. Three different lubricants were used to study the effects of friction coefficient on warm compaction... density when compared to conventional compaction is that it modifies the lubrication mode and increases the effective applied pressure. Different lubricants produce different lubrication effects......
as compared with that lubricated with neat rapeseed oil. The enhanced anti-wear and friction-reducing abilities of rapeseed oil by SRO in the lubrication of magnesium alloy against steel were ascribed... Friction and wear performances of magnesium alloy against steel under lubrication of rapeseed oil with S-containing additive FANG Jian-hua1, 2, PAN Fu-sheng1, CHEN Bo-shui2, WU Jiang2, DONG Ling2 1......
is the relative velocity of any point in the oil-film-lubrication area in Eq. (5); Pi,j is the dimensionless pressure at any point in the area of oil-film lubrication; and μi,j is the friction coefficient... contact pressure and the maximum wear depth appeared in the central-contact region and that the maximum contact pressure decreased with increasing number of swings. Using the Fang model for non-conformal......
lubrication conditions. It was found that Nitinol 60 alloy can be lubricated well and has shown remarkable tribological performance. Average coefficient of friction (COF) of Nitinol 60 is 0.6 under dry friction; however, average COF decreases to 0.1 under PAO oil lubrication. SEM image of the worn surface shows that Nitinol 60 exhibits excellent wear resistance and the wear mechanism is mainly adhesive......
the change rule of lubrication characteristics. The developed scheme is able to determine the total pressure, lubricant pressure, film thickness and real contact area at any point within the work zone...; rolling; film thickness; real contact area 1 Introduction Lubrication technology has been widely used in rolling process to improve the surface quality of metal products and to reduce roll wear......
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, the nanometer CaCO3 particles'' properties of extreme pressure,anti-wear and friction reduction have been tested and analyzed. The properties of the nanometer CaCO3 particles'' tribology chemistry have...Study on Friction Reducing and Anti-wear of CaCO3 Nanoparticles as Additives in Lubricating Oils GU Cai-xiang1,WANG Ren-bin1,GU Zhou-ming1 (1.Shanghai Maritime University, Shanghai, China) 摘要......
and FE analysis. Key words: tube hydroforming; friction coefficient; lubricant; axial force; internal pressure 1 Introduction The hydroforming is a process to expand metal tubes through high fluid... and FE analysis results. 3 Results and discussion 3.1 Friction coefficient in guiding zone The relationships between the friction coefficients and the internal pressure at various lubrications are shown......
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