申请人:KYODO YUSHI CO., LTD.
公开号:EP0613939A2
公开(公告)日:1994-09-07
A graphite-free lubricating oil which comprises a base oil having dispersed therein 10 to 40% by weight of a carbohydrate and/or a derivative thereof whose particle size ranges from 10 to 150 µm, 2 to 20% by weight of a film-boosting agent and 0.1 to 20% by weight of a dispersant. Moreover, the lubricating oil is free of black-colored substances such as graphite. Therefore, the oil permits the improvement of working surroundings and exhibits excellent properties such as formability through forging almost comparable to or even greater than that of the commercially available graphite-in-oil type lubricating oils. The lubricating oil can be used instead of the graphite-containing lubricating oils for warm forging, hot forging, rolling, tube-manufacturing, drawing and extrusion in place of the graphite-containing lubricating oils and ensures the improvement in the working surroundings and excellent lubricity.
一种不含石墨的润滑油,它由基础油(按重量计,基础油中分散有 10 至 40% 的碳水化合物和/或其衍生物,其粒径范围为 10 至 150 微米)、2 至 20% (按重量计)的油膜促进剂和 0.1 至 20% (按重量计)的分散剂组成。此外,润滑油不含石墨等黑色物质。因此,这种润滑油可以改善工作环境,并表现出优异的性能,如锻造成形性,几乎可与市售的油包石墨型润滑油媲美,甚至更强。该润滑油可代替含石墨的润滑油,用于温锻、热锻、轧制、管材制造、拉伸和挤压,并确保改善工作环境和优异的润滑性。