| 摘要 |
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° C. of 0.7 to 0.8 g/cm3, 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. |
| 主权项 |
1. A metal working oil composition comprising:
a light oil/kerosene fraction hydrocarbon oil produced by a production process comprising a hydrocracking process for a wax-containing component, and optionally a hydrogenation refining process for a component obtained from the hydrocracking process for a wax-containing component; wherein the hydrocarbon oil has a density at 15° C. of 0.73 to 0.785 g/cm3 and a kinematic viscosity at 40° C. of 1.0 to 5.5mm2/s; wherein the hydrocarbon oil comprises 10 to 90% by mass of n-paraffin, 0% by volume of aromatics, 0% by volume of naphthene, a first oily agent consisting of a monohydric alcohol, and optionally a second oily agent comprising at least one selected from the group consisting of an ester and a carboxylic acid; wherein the hydrocarbon oil comprises 30 mass % or more relative to a total amount of the metalworking oil composition; and wherein a total amount of the first oily agent and the second oily agent consists of .01 to 15 mass % relative to a total amount of the composition. |
