Abstract:
The invention concerns a lubricating composition for machining metals by removing cuttings, containing 0.01 to 0.5 wt. %, relative to the total amount of said ready-for-use lubricant, elemental sulphur having an average particle size ranging between 10 and 1500 nm, and concentrates of said lubricant.
Abstract:
A recirculating flow of a non-micellar milky white water-in-oil emulsion is provided to a metal workpiece (4) being subjected to a working operation in a work station (1), the fluid (20) returning from the work station (1) being collected in a tank (8) and its water content replenished by simple addition (21) of water thereto. The direction of circulation of fluid (20) is indicated by arrows (30). During recirculation, the fluid preferably passes through filters (17, 13) to a clean storage tank (14).
Abstract:
A cutting or grinding fluid composition comprising a base oil (A) and at least one member (B) selected from among C2-C6 dibasic acids, C3-C6 tribasic acids and ester derivatives thereof; and another cutting or grinding fluid composition comprising component (A), component (B), a sulfur compound (C) and/or an overbased alkali or akaline earth metal sulfonate (D). These compositions serve to improve the working efficiency, for example, inhibition of tool wear and realization of excellent finished surface accuracy.
Abstract:
Iron-based metallurgical powder compositions are produced by mixing iron-based powder with an improved binder/lubricant that comprises dibasic organic acid and one or more additional components such as solid polyethers, liquid polyethers, and acrylic resin. These novel binder/lubricants impart one or more enhanced green properties to the powder compositions and reduce the ejection force required to remove the compositions from molds and dies.
Abstract:
The aim of the invention is to create a mixture for producing green bodies having high green strength and a high compression density, said mixture also helping to reduce the ejection force from the pressing tool. Said aim is achieved by a mixture comprising a metallic and/or plastic material and a pressing aid which contains 25 to 60 percent by weight of a polyglycol and 40 to 75 percent of a montan wax, the percentages being relative to the total quantity of the pressing aid.
Abstract:
Iron-based metallurgical powder compositions are produced by mixing iron-based powder with an improved binder/lubricant that comprises dibasic organic acid and one or more additional components such as solid polyethers, liquid polyethers, and acrylic resin. These novel binder/lubricants impart one or more enhanced green properties to the powder compositions and reduce the ejection force required to remove the compositions from molds and dies.
Abstract:
PROBLEM TO BE SOLVED: To provide an aqueous coolant which hardly causes corrosion of a metal material to be cooled, while having high cooling performance.SOLUTION: The aqueous coolant is obtained by blending one or more inorganic acid salts selected from a carbonate, a hydrogen carbonate, a sesquicarbonate, a phosphate, a borate, a molybdate, and a tungstate with a metal corrosion inhibitor. The aqueous coolant of the present invention has high cooling performance and hardly causes corrosion of a metal material to be cooled. Therefore, the aqueous coolant of the present invention is suitable as a heat treatment oil or a cutting oil.