Janting, G. Hanada, K. Hatsukano, K. Matsuzaki, K. Umeda, M. Ishiwata, M. Tsukita, Graphite coating of tool steel by pressure spraying. Kinga, H. Wilman, The friction and wear properties, during abrasion, of compressed graphite-powder compacts and commercial graphitised carbons. Wear 5 3 , — CrossRef Google Scholar. Lee, Y. Hwang, Y. Choi, J. Lee, C. Oh, A study on the tribological characteristics of graphite nano lubricants.
Pan, Q. Guo, J. Ding, W. Zhang, X. Qiu, J. Dong, G. Chen, Tribological properties of CeF 3 nanoparticles as additives in lubrication oils. Wear 1 , 35—38 CrossRef Google Scholar. Rapoport, V. Leshchinsky, M. The downside of graphite as a lubricant is that it does not bond well to the surfaces it lubricates. It easily falls off and needs to be applied often. There are a different types of liquid graphite lubricants. One is graphite suspended in a liquid base that will evaporate when the liquid is painted on a surface.
When the liquid evaporates, it will leave a thin layer of pure graphite to lubricate the surface. Graphite grease is a form of graphite lubricant that is designed to stick to a surface, such as when used on an exposed bearing.
The grease will help keep the graphite in place so it can work. Graphite has advantages in situations where wet lubricants might not be practical, such as where electricity might be a hazard. Another situation is when lubricating porous substances such as wood.
Wood is easily stained by oil or other common lubricants. Graphite can dissipate more heat than some other lubricants. Some are suitable for crucibles, others for paint or polish, or foundry facing, but only one or two kinds can safely be used for lubricating.
This has been explained so often that it is not necessary here. The salient fact to remember is that all grades of graphite lubricants are sold on the reputation that has been built up during the past fifty years by Dixon. Cheap graphite greases are inferior because they contain cheap grease and cheap graphite.
A bearing will be damaged by cheap graphite because it contains grit. We cannot prevent a man buying inferior graphite if he so pleases, but we do protest against the injustice of condemning the whole principle of graphite lubrication because such a lubricant is unsatisfactory. He invites trouble who puts cheap stuff or even the wrong grade of a good lubricant in his machine and should blame no one but himself when something happens. If thousands of expensive and finely finished machines are being operated more satisfactorily with graphite than is possible with oil or grease alone, then a little intelligent thought should convince such a man that he evidently did not use the right stuff.
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