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由于滑润条件的不同,固体间的磨擦主要有:液体磨擦、边界磨擦和乾磨擦三类.头尾两类是极端情形,过去研究得也比较系统成熟。边界磨擦在实陈中极常遇到,这种条件下所发生的物理、化学、力学过程也很错综复杂.因此这一领域的研究不仅有重耍的实际意义,且也有巨大的理论价值.因此近来愈来愈多的人在从事这方面的研究,尤其是苏联的学者们在若干主要问题上都取得了辉煌的成就. 液体滑润条件下,磨擦表面被很厚的滑润层(不小于5μ)所隔绝,磨损几乎不存在,磨擦力极小.这种条件可以完全用粘滞液体的流体动力学来描述,与磨擦表面对滑润层的作用关系不大. 在边界滑润条件下,磨擦表面之间的缝隙很小(约0.1—1μ),它们仅隔着一个边界
Due to the different lubricating conditions, the friction between solids are mainly: liquid friction, boundary friction and dry friction three types of head and tail are extreme cases, the past study has also been relatively mature system. Boundary friction is very often encountered in practice, and the physical, chemical, and mechanical processes that occur under such conditions are complex, so that research in this area is not only of great practical importance but also of great theoretical value. Recently, more and more people are engaged in this aspect of research, especially the Soviet Union scholars have made brilliant achievements on a number of major issues.Under the conditions of liquid lubrication, the friction surface is very thick lubricated layer (not less than 5μ) The wear is almost nonexistent, and the friction is very small.This condition can be completely described by the fluid dynamics of viscous liquid, which is not related to the effect of the friction surface on the lubricated layer.When the boundary is lubricated, The gap between the small (about 0.1-1μ), they are only separated by a border