Abstract:
Composites solides auto-lubrifiants comprenant des ebauches en fibres de carbone ou de graphite renforcees avec des resines supportant de hautes temperatures et pigments auto-lubrifiants supportant des charges tres importantes a des temperatures elevees.
Abstract:
Disclosed are antiwear hydraulic fluid compositions comprising (a) a major amount of a base oil of lubricating viscosity and (b) a minor amount of at least one oil soluble detergent additive comprising a salt of an alkyl-substituted hydroxybenzoic acid or a sulfurized derivative thereof, wherein said salt is selected from the group consisting of alkali metal salts, alkaline earth metal salts, ammonium salts or substituted ammonium salts, and further wherein said antiwear hydraulic fluid compositions have a Carboxylate Index of greater than levels disclosed herein.
Abstract:
The present invention relates generally to the field of metal conversion surfaces, in particular, the creation of a phosphate-metal chemisorbed layer for iron and aluminum parts as well as to other metal substrates capable of forming a conversion surface. A phosphorus-containing solution is brought into contact with the metal components such that a conversion surface is formed.
Abstract:
According to the invention there is provided a liquid friction control composition characterized as either having a high and positive friction characteristic or a low and neutral friction characteristic, comprising a retentivity agent. The liquid friction control composition may also comprise other components such as a solid lubricant, a wetting agent, a consistency modifier, and a preservative. The liquid friction control compositions may be used to modify the interfacial friction characteristics in sliding and rolling-sliding contact such as steel wheel-rail systems including mass transit and freight systems.
Abstract:
According to the invention there is provided a liquid friction control composition characterized as either having a high and positive friction characteristic or a low and neutral friction characteristic, comprising a retentivity agent. The liquid friction control composition may also comprise other components such as a solid lubricant, a wetting agent, a consistency modifier, and a preservative. The liquid friction control compositions may be used to modify the interfacial friction characteristics in sliding and rolling-sliding contact such as steel wheel-rail systems including mass transit and freight systems.
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:
An aqueous cutting fluid comprising a cationic water-soluble resin having an amino value of 20 to 200 mg KOH/g and at least one viscosity modifier selected from among inorganic and organic bentonites and aqueous silica sols, wherein the content of nonvolatiles in the viscosity modifier is 0.1 to 30 wt.% based on the nonvolatiles in the resin; an aqueous cutting agent prepared by incorporating abrasive grains into the fluid in an amount of 100 to 1000 wt.% based on the nonvolatiles of the fluid, which is excellent in the dispersion stability of abrasive grains and viscosity stability and effective particularly for wire saws; and a process for cutting hard brittle materials by the use of a cutting tool and the cutting agent, which permits high-accuracy processing of the hard brittle materials and excellent cleaning thereof.
Abstract:
A coating material (20) comprising a mixture of a thermosetting resin, polytetrafluoroethylene, a member of the polyolefin group consisting of polyethylene, a copolymer of polyethylene and polypropylene, and a combination of polyethylene and a copolymer of polyethylene and polypropylene, in a solvent, wherein said solvent being volatile and having the property of dissolving said resin, is produced and applied to a metal substrate (12).
Abstract:
The present invention relates to a method for mechanical working of metal and other solid materials as well as glass with a cooling and lubricating composition containing a major portion of carbon dioxide and a minor portion of a polar lubricant containing at least one polar organic compound with at least one oxygen atom. The polar groups may be selected from the group consisting of the ether, hydroxyl, carboxyl, ester and amido group or mixtures thereof.
Abstract:
Proposed is the use, as corrosion inhibitors in oil-containing liquids, of nitrogen-free aromatic hydroxy compounds with a phenolic hydroxy group and with a pKS-value for the phenolic hydroxy group in the range 7.0 to 11, represented by esters or ketones.