Cutting or grinding oil composition
AssigneeNippon Mitsubishi Oil Corporation
InventorsHideo Yokota, Noboru Aota, Yoshitaka Natsume, Masanori Ibi, Minoru Okajima, Ichiro Inezaki, Toshiaki Wakabayashi, Satoshi Suda
Life of this patent
Estimating the term…
Abstract
Cutting or grinding oil compositions which are suitable for use in a minimal quantity lubrication system in which a minimal quantity of an oil is supplied to the spot to be cut or ground of a work, together with air are reduced in stickiness and improved in lubricity.
Claims19
A cutting or grinding oil composition for a minimal quantity lubrication system comprising 20 to 100 percent by mass of an ester, 0 to 50 percent by mass of an oiliness improver, 0 to 10 percent by mass of an oxidation inhibitor, and 0 to 70 percent by mass of a base oil based on a total mass of the composition, wherein the composition has a kinematic viscosity of 1 to 100 mm2/s at 40° C., and wherein said ester comprises a polyhydric alcohol selected from the group consisting of those of from dihydric- to decahydric-alcohols and a fatty acid having 2 to 24 carbon atoms.
A minimal quantity lubrication system for cutting or grinding which comprises supplying together with a compressed fluid an oil composition in a quantity of 0.001 ml/minute to 1 ml/minute to the cutting or grinding spot of a work, wherein the oil composition comprises 20 to 100 percent by mass of an ester, 0 to 50 percent by mass of an oiliness improver, 0 to 10 percent by mass of an oxidation inhibitor, and 0 to 70 percent by mass of a base oil based on a total mass of the composition, and the composition has a kinematic viscosity of 1 to 100 mm2/s at 40° C.
A method for cutting or grinding a work which comprises:
- (a) cutting or grinding a work such that the work has a cutting or grinding spot;
- and
- (b) supplying to the cutting or grinding spot of the work an oil composition from a minimal quantity lubrication system wherein the minimal quantity lubrication system comprises supplying together with a compressed fluid the oil composition in a quantity of 0.001 ml/minute to 1 ml/minute;
- wherein the oil composition comprises 20 to 100 percent by mass of an ester, 0 to 50 percent by mass of an oiliness improver, 0 to 10 percent by mass of an oxidation inhibitor, and 0 to 70 percent by mass of a base oil based on a total mass of the composition, and wherein the composition has a kinematic viscosity of 1 to 100 mm2/s at 40° C.
Dependencies are inferred from the claim text.