Abstract:
The present invention provides a water-soluble metalworking oil composition, including: 5.0 to 20.0 mass % of a sulfur compound (A) that is one or more kinds selected from the group consisting of a sulfurized fat and oil and a sulfurized ester and has a kinematic viscosity of 10 to 800 mm2/s at 40° C.; 0.5 to 20.0 mass % of the nonionic surfactant (B) having an HLB of 6 to 18; 7.0 to 30.0 mass % of an unsaturated fatty acid polymer (C); and an amine compound (D) selected from the group consisting of a tertiary amine and a secondary amine.
Abstract:
A water-soluble metalworking fluid of the invention contains: a component (A) that is a dicarboxylic acid including a sulfide structure; a component (B) that is a polyalkylene glycol; a component (C) that is polyhydric alcohol polyalkylene oxide adducts; and a component (D) that is a monocarboxylic acid.
Abstract:
Provided is a water-soluble metalworking oil comprising a base oil (A) comprising oil-soluble polyalkylene glycol (A1), wherein a total content of water-soluble polyalkylene glycol and methoxypolyethylene glycol is less than 60% by mass based on the total amount excluding water.
Abstract:
The present invention relates to an electric discharge machining oil composition and an electric discharge machining method capable of enhancing machining speed in electric discharge machining. This electric discharge machining oil composition is characterized by including (A) a base oil, and (B) one or more types of petroleum resin selected from hydrogenated products of copolymers of dicyclopentadiene and an aromatic compound and having a softening point of 75 to 185° C. and a mean molecular weight (Mn) of 670 to 3000, wherein the kinematic viscosity of the electric discharge machining oil composition at 40° C. is 1 to 10 mm2/s. Further, the electric discharge machining method is characterized by employing said electric discharge machining oil composition, and includes interposing the electric discharge machining oil composition between a workpiece and an electrode, and generating an electric discharge between the workpiece and the electrode in this state to machine the workpiece.
Abstract:
A metalworking oil composition contains: a component (A) that is an ester of a polyhydric alcohol and a fatty acid; and a component (B) that is elemental sulfur, in which the metalworking oil composition has a kinematic viscosity at 40 degrees C. in a range from 5 mm2/s to 70 mm2/s and a flash point of 200 degrees C. or more. The metalworking oil composition of the invention is suitably usable particularly in a field of a high-speed cutting work
Abstract:
A water-soluble metalworking fluid of the invention contains a component (A) that is a dicarboxylic acid including a sulfide structure and a component (B) that is a monocarboxylic acid, in which the fluid contains no polyalkylene glycol. A metalworking coolant of the invention is provided by diluting the above-described water-soluble metalworking fluid with water.
Abstract:
An electrical discharge machining oil composition of the invention includes an organic acid metal salt and a base oil, in which the organic acid metal salt is an organic acid salt of a metal having an electronegativity on Pauling scale of 2 or less, and the present composition has a volume resistivity at 80 degrees C. of 2×10−5 TΩ·m or more and a kinematic viscosity at 40 degrees C. in a range from 0.5 mm2/s to 10 mm2/s.
Abstract:
A silicon-wafer processing fluid used for processing a silicon wafer contains a friction modifier containing a nitrogen-containing compound, pH of the nitrogen-containing compound being in a range from 2 to 8 when a mass ratio with water (i.e. nitrogen-containing compound/water) is 1/99. The nitrogen-containing compound is preferably a heterocyclic compound. The silicon-wafer processing fluid restrains an abrasion of abrasive grains rigidly attached to a wire and generation of hydrogen.
Abstract:
Disclosed is a metalworking oil composition containing: at least one base oil (A) selected from a mineral oil and a synthetic oil; sulfurized oils and fats (B) having a kinematic viscosity at 40° C. of 60 mm2/s or more and 1,600 mm2/s or less; and a polymer (C) of an unsaturated fatty acid having a carbon number of 10 or more.
Abstract:
A water-soluble working fluid of the invention is used for cutting a brittle material using a wire saw. The water-soluble working fluid is provided by blending water, alkylene oxide adduct of acethylene glycol, and glycols. The water-soluble working fluid of the invention is capable of providing favorable cutting accuracy when the brittle material is cut using a wire, and thus is suitable for cutting out a large-diameter wafer. The water-soluble working fluid of the invention is especially suitably applicable to an abrasive-grain-fixed wire saw.