Abstract:
Coating materials with minimized lubricant demand enable optimized tribological conditions in forming flat steel products and are also unobjectionable in relation to their effects on the environment. With such coating materials, steel components can be produced by forming flat steel products in forming machines. For example, a tribologically-active layer may be produced on at least one surface of a flat steel product or a forming machine used to form the flat steel product, wherein the at least one surface comes into contact with the opposing component during forming. The tribologically-active layer may be formed by coating the at least one surface with a coating material from a group consisting of aluminum sulfate, ammonium sulfate, iron sulfate, and magnesium sulfate. The flat steel product may be inserted into the forming machine to be formed into the steel component.”
Abstract:
The disclosure concerns an aqueous lubricant composition, characterized in that it comprises of: 50 wt % of water, 0.01-20 wt % of a thickening agent, 0.5-10 wt % of an antioxidant; 0.5-5 wt % of a pH regulating agent; and glycerol. There is also provided a method for manufacturing the aqueous lubricant composition, and uses of said aqueous lubricant composition.
Abstract:
The present invention relates to a method of lubricating a conveyor belt wherein a lubricant concentrate containing at least one oil is employed in a dry lubrication process. Afterwards, a liquid composition having a pH-value ≧5 is applied to the surface of the conveyor belt on which the lubricant concentrate has been applied earlier.
Abstract:
The present invention relates to a method of lubricating a conveyor belt wherein a lubricant concentrate containing at least one fatty acid is employed in a dry lubrication process at a pH-value of 5 is applied to the surface of the conveyor belt on which the lubricant concentrate has been applied earlier.
Abstract:
The invention concerns a method for cold rolling metals using an aqueous lubricant comprising: (1) at least a mixture based on at least an acid selected among saturated or unsaturated mono- or poly-carboxylic acids, comprising 5 to 40 carbon atoms; at least an acid phosphate ester of formula (RO)x-P(═O)(OH)x′, wherein: R is a hydrocarbon radical, optionally polyalkoxylated; x and x′ being equal to 3; the carboxylic acid and/or the acid phosphate ester being optionally neutralized by an organic or mineral base; and (2) at least a natural or synthetic wax exhibiting a melting point not less than 50° C. and having an average particle size ranging between 0.5 and 10 μm. The use of said lubricant enables to increase the productivity of the method by at least 15% relative to a method using a conventional lubricant.
Abstract:
The invention concerns a method for cold rolling metals using an aqueous lubricant comprising: (1) at least a mixture based on at least an acid selected among saturated or unsaturated mono- or poly-carboxylic acids, comprising 5 to 40 carbon atoms; at least an acid phosphate ester of formula (RO)x-P(═O)(OH)x′, wherein: R is a hydrocarbon radical, optionally polyalkoxylated; x and x′ being equal to 3; the carboxylic acid and/or the acid phosphate ester being optionally neutralised by an organic or mineral base; and (2) at least a natural or synthetic wax exhibiting a melting point not less than 50° C. and having an average particle size ranging between 0.5 and 10 μm. The use of said lubricant enables to increase the productivity of the method by at least 15% relative to a method using a conventional lubricant.
Abstract:
The present invention provides a friction control composition comprising a binder a rheological control agent, and optionally a lubricant. The liquid friction control composition may also comprise other components 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. A method of reducing lateral force, reducing energy consumption, or controlling friction between a metal surface and a second metal surface by applying the composition to metal surface, for example a top of rail or wheel, is also provided. The composition may be sprayed onto the rail surface.
Abstract:
A composition comprises a sulphur free reaction product of: (a)(i) a hydrocarbyl substituted aromatic compound containing an acidic group selected from the group consisting of a carboxylic group, a hydroxyl group and mixtures thereof and (a)(ii) an organic nitrogen-containing base reacted with acidic group. The composition is obtained by a preparatory process and is useful in a method for lubricating an internal combustion engine to include where the lubricant has reduced levels of sulphur, phosphorus and sulphated ash.
Abstract:
A stable collidal suspension comprising: (a) a dispersed phase comprising a major amount of one or more dispersed hydrated polymeric compounds selected from the group consisting of polymolybdates, polytungstates, polyvanadates, polyniobates, polytantalates, polyuranates, and mixtures thereof, and, (b) an oil phase comprising one or more dispersing agents and a diluent oil. Processes for preparing the stable colloidal suspensions and their use in lubricating oil compositions are also provided.
Abstract:
A perfluoropolyether, a composition comprising the perfluoropolyether, a process for producing the perfluoropolyether, and a process for improving the thermostability of grease or lubricant are provided. The perfluoropolyether comprises perfluoroalkyl radical end groups in which the radical has at least 3 carbon atoms per radical and is substantially free of perfluoromethyl and perfluoroethyl end groups. The process for producing the perfluoropolyether can comprise (1) contacting a perfluoro acid halide, a C2- to C4-substituted ethyl epoxide, or a C3+ fluoroketone with a metal halide to produce an alkoxide; (2) contacting the alkoxide with either hexafluoropropylene oxide or tetrafluorooxetane to produce a second acid halide; (3) esterifying the second acid halide to an ester; (4) reducing the ester to its corresponding alcohol; (5) converting the alcohol with a base to a salt form; (6) contacting the salt form with a C3 or higher olefin to produce a fluoropolyether; and (7) fluorinating the fluoropolyether. The process for improving the thermostability of a grease or lubricant comprises combining the grease or lubricant with the composition.