Nippon Oil Corporation

Nippon Mitsubishi Oil Corporation

Masanori Ibi

Satoshi Suda

Hideo Yokota

Masahiro Hata

Toshiaki Wakabayashi

Junichi Shibata

Hiroshi Kametsuka

Tadaaki Motoyama

Ichiro Inasaki

Noboru Aota

Yoshitaka Natsume

Minoru Okajima

Ichiro Inezaki

A multifunctional, high-performance hydrocarbon composition is demanded. Concretely, a metalworking oil composition having high workability even under a severer lubricating condition while resisting to high productivity, and further capable of suppressing deterioration of working environments or degradation of quality of a product without rise of lubricant cost, a metalworking oil composition for minimal quantitative lubrication system, which is excellent in characteristics as a water-insoluble lubricant for nonferrous metalworking and also in characteristics as a lubricant for cutting/grinding by minimal quantitative lubrication method, and can attain improvement in working efficiency and a further extended tool life, an electric discharge machining oil improved in working environments such as odor or skin roughness and further improved in processing rate, particularly processing rate in high-level finish, a rust preventing oil composition improved in resin compatibility, and a detergent excellent in adaptability with organic material are demanded. Therefore, metalworking oil which contains, as hydrocarbon base oil, hydrocarbon base oil having a density at 15&#xb0; C. of 0.7 to 0.8 g/cm, and including a n-paraffin content of 10 to 90% by mass, an aromatic content of 0 to 3% by volume, and a naphthene content of 0 to 20% by volume, a metalworking oil including the above-mentioned base oil and ester oil, and electric discharge machining oil, rust preventing oil, and a detergent composition including the above-mentioned base oil are provided.

Multifunctional hydrocarbon oil composition

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.

Method of minimal quantity lubrication cutting/grinding processing and oil composition used therefor

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.

Metal working fluid

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.

Oil composition for cutting and grinding by minimal quantity lubrication system

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.

Oil for cutting and grinding by ultra low volume oil feed system and for sliding surface and method for cutting and grinding by ultra low volume feed system using the oil

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.

Growing community of inventors

Niigata, Japan

Masanori Ibi