Abstract: The present invention provides an oil composition comprising a lubricating base oil, and an alkylene oxide adduct of a hydroxy acid having a hydrophile-lipophile index of 8 to 15, wherein the oil composition is used for cutting/grinding processing by minimal quantity lubrication system. Further, the present invention provides a cutting/grinding processing method by minimal quantity lubrication system, comprising a step of supplying the oil composition of the present invention in the form of mist together with a compressed fluid to processing sites of a workpiece.

Abstract: A multifunctional, high-performance hydrocarbon composition is demanded.

Abstract: The present invention provides an oil composition comprising a lubricating base oil, and an alkylene oxide adduct of a hydroxy acid having a hydrophile-lipophile index of 8 to 15, wherein the oil composition is used for cutting/grinding processing by minimal quantity lubrication system. Further, the present invention provides a cutting/grinding processing method by minimal quantity lubrication system, comprising a step of supplying the oil composition of the present invention in the form of mist together with a compressed fluid to processing sites of a workpiece.

Abstract: The present invention provides a method of minimal quantity lubrication cutting and grinding that can improve cutting and grinding properties and extend the life of tools. The minimal quantity lubrication cutting and grinding method of the present invention comprises supplying a compressed fluid containing 0.1 to 15 percent by volume of oxygen together with a cutting and grinding oil (particularly preferably an oil composition comprising an ester) to processing spots of a workpiece.

Abstract: The present invention provides an oil for minimal quantity lubrication aluminum processing. In aluminum processing such as cutting, grinding, and form-rolling, the oil composition can improve the processing efficiency, tool life, and handleability in higher levels in a well-balanced manner and further is highly biodegradable and thus environment friendly. The oil composition comprises an alcohol compound having 1 to 8 hydroxyl groups and 2 to 27 carbon atoms, in an amount of 16 to 100 percent by mass on the basis of the total mass of the composition.

Abstract: The oil for metal working according to the invention is an oil for metal working comprising a triester of fatty acids and glycerin, wherein the content of oleic acid in the fatty acids is 40-98% by mass based on the total amount of the fatty acids. The oil for metal working of the invention can achieve a high level of machining performance without using a chlorine-based extreme pressure agent.

Abstract: An oil composition for cutting and grinding by minimal quantity lubrication system and for sliding surface according to the present invention comprises an ester and a sulfur compound and/or a phosphorus compound.

Abstract: An oil for cutting and grinding by minimal quantity lubrication system and for sliding surface according to the present invention comprises an ester, and is used as a lubricating oil for cutting and grinding suitable for a cutting and grinding method by minimal quantity lubrication system, and also used as a lubricating oil for sliding surface.

Abstract: The present invention provides a method of minimal quantity lubrication cutting and grinding that can improve cutting and grinding properties and extend the life of tools. The minimal quantity lubrication cutting and grinding method of the present invention comprises supplying a compressed fluid containing 0.1 to 15 percent by volume of oxygen together with a cutting and grinding oil (particularly preferably an oil composition comprising an ester) to processing spots of a workpiece.

Abstract: An oil composition for cutting and grinding by minimal quantity lubrication system and for sliding surface according to the present invention comprises an ester and a sulfur compound and/or a phosphorus compound.

Abstract: A multifunctional, high-performance hydrocarbon composition is demanded.

Abstract: An oil composition for cutting and grinding by minimal quantity lubrication system and for sliding surface according to the present invention comprises an ester and a sulfur compound and/or a phosphorus compound.

Abstract: A first oil for metal working of the invention comprises an ester oil and a hydrocarbon oil with a kinematic viscosity of 1-20 mm2/s at 40° C. A second oil for metal working of the invention employs an ester oil as the base oil and has a moisture content of 200-20,000 ppm. The first and second oils for metal working have excellent properties as water-insoluble oils for non-ferrous metal working and as oils for cutting and grinding in a minimum quantity lubrication system, and can therefore achieve improved working efficiency and extended tool life.

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.

Abstract: An oil for cutting and grinding by minimal quantity lubrication system and for sliding surface according to the present invention comprises an ester, and is used as a lubricating oil for cutting and grinding suitable for a cutting and grinding method by minimal quantity lubrication system, and also used as a lubricating oil for sliding surface.

Abstract: An oil composition for cutting and grinding by minimal quantity lubrication system and for sliding surface according to the present invention comprises an ester and a sulfur compound and/or a phosphorus compound.

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.