Graphite-free lubricating oil

Details Graphite-free lubricating oil Graphite-free lubricating oil

1994-02-25

1995-10-24

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 32007E, 252 347, 252 45, 252 56R, 252 51005A, 252 51005R, 252 52R, 72 42, C10M14102

Patent

active

054607370

ABSTRACT:
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 .mu.m, 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.

REFERENCES:
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patent: 2751312 (1956-06-01), Ness
patent: 3813335 (1974-05-01), Drobich et al.
patent: 4808324 (1989-02-01), Periard et al.
Patent Abstracts of Japan, vol. 13, No. 182 (C-591), Apr. 27, 1989, JP-A-01 011 197, Jan. 13, 1989.
Patent Abstracts of Japan, vol. 13, No. 290 (C-614), Jul. 5, 1989, JP-A-01 085 295, Mar. 30, 1989.
Patent Abstracts of Japan, vol. 18, No. 40 (C-1155), Jan. 21, 1994, JP-A-05 263 092, Oct. 12, 1993.
Patent Abstracts of Japan, vol. 4, No. 7 (C-070), Jan. 19, 1980, JP-A-54 143 409, Nov. 8, 1979.

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