Abstract:
The present invention provides a water based friction control composition comprising a binder a rheological control agent, and optionally a lubricant. The liquid friction control composition may also comprise other components such as 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:
La présente invention a pour objet un procédé de laminage à froid de métaux mettant en oeuvre un lubrifiant aqueux comprenant (1) au moins un mélange à base d'au moins un acide choisi parmi les acides mono- ou poly-carboxyliques, saturés ou non, comprenant 5 à 40 atomes de carbone; d'au moins un ester phosphate acide de formule (RO) x -P(=O)(OH) x' , formule dans laquelle R est un radical hydrocarboné, éventuellement polyalcoxylé, x et x' étant égaux à 1 ou 2, à la condition que la somme de x et x' soit égale à 3; l'acide carboxylique et/ou l'ester phosphate acide étant éventuellement neutralisé(s) par une base organique ou minérale; et (2) au moins une cire naturelle ou synthétique présentant un point de fusion supérieur ou égal à 50 °C et présentant une taille moyenne de particules comprise entre 0,5-10 μm. La mise en oeuvre de ce lubrifiant permet d'augmenter la productivité du procédé d'au moins 15 % par rapport à un procédé mettant en oeuvre un lubrifiant classique.
Abstract:
The invention relates to a method for treating or pretreating containers made of aluminum, aluminum-containing alloys, magnesium-containing alloys, ferrous products such as steel, coated ferrous products such as galvanized steel or metal materials coated with aluminum or aluminum alloys, tinplate, brass or bronze, especially pouches, bags, bottles, cans, canisters, barrels or cases, wherein the process steps of treatment or pretreatment coincide with that of applying a lubricant. The agent used for treatment or pretreatment, which also contains and/or is a lubricant, does not substantially consist of titanium and/or zirconium with fluoride and a polymer. The lubricant is formed in the agent used for treatment or pretreatment and/or when the coating resulting therefrom is formed.
Abstract:
The invention concerns a composition for preparing metal products designed to be shaped by at least one mechanical process of plastic deformation such as wire drawing, rolling, calendering, forging, swaging and the like, without notable shrinkage of substance. The invention is characterised in that it comprises a film-forming binder, at least an additive reactive with the metal, at least a lubricating additive and at least an anticorrosive additive. The invention also concerns a method for preparing said metal products using the claimed composition.
Abstract:
In a hermetic compressor using a hydrocarbon coolant and a mineral oil lubricant, the decrease in the viscosity of the mineral oil lubricant for the purpose of operation with high efficiency results in poor lubricity and the lowering of reliability. In order to improve lubricity and to thereby achieve high efficiency, less noise and high reliability at the same time, at least one specific additive is added to a refrigerating machine oil.
Abstract:
The invention relates to lubricants used in friction assemblies: rolling-element and slide bearings, hinged bearings, threaded joints, cogged and other gears under maximum temperatures up to 200-250 DEG . The proposed middle-temperature grease based on soap-thickened oils contains an organophosphoric additive, graphite and molybdenum disulphide. As an organophosphoric additive it contains a mixture of isomers - a product of the interaction between diethyl phosphite and N-arylsulphonylquinonimine, and as soap-thickened oils - a mixture of Ca-stearate or Li-12-hydroxystearate with heavy petroleum oils (MC20 oil). The proposed grease is far superior to known greases in terms of operating characteristics: anti-wear and anti-scuff properties under severe operating conditions, as well the grease having the property of increased retention time on friction surfaces. Under conditions of high temperature, ingress of water and slag, friction assemblies, bearings in particular, with the grease applied, operate for 200 twenty-four-hour periods and more.
Abstract:
The disclosure relates to temporary corrosion resistant coatings and films upon metal substrates, e.g., metal tools and dies. The temporary coatings and films will not adversely chemically alter the surface of the underlying substrate. The coatings/films comprise a mixture of at least one of an acrylic, water, an oil, silica, at least one silicate, surfactants and optionally one or more buffering materials and waxes.
Abstract:
This invention relates to novel water soluble metal working fluid compositions, their use to work metal, a process for working metal using such compositions and the metal worked article of manufacture. More particularly, this invention relates to fluid compositions useful in cutting, grinding, shaping and other metal working operations which require a lubricant. The terms "first Group A" and "second Group B" are used herein to denote different groups and not to indicate any sequence of use or selection as any possible combination or sequence of use of a component(s) is envisioned without limit of any kind. The disclosed fluid compositions are also anticorrosive and environmentally more acceptable than current oil based fluids. There has now been discovered an essentially odorless, substantially non-oil misting, water-soluble metal working fluid comprising at least one component selected from a first Group A herein and optionally one or more components selected from a second Group B herein preferably with the balance of the composition being water and other (optional) minor ingredients. When a component is employed from Group A and a component is employed from Group B the action of the combination generally enhances performance of the resulting combination with contain moieties from both Group A and Group B.
Abstract:
A disc drive (10) includes a housing (12), a central axis (80), a stationary member (34) which is fixed with respect to the housing and coaxial with the central axis, and a rotatable member (36) rotatable about the central axis with respect to the stationary member. A stator (38) is fixed with respect to the housing. A rotor (70) is supported by the rotatable member and is magnetically coupled to the stator. At least one data storage disc (16) is attached to and is coaxial with the rotatable member. A hydro bearing (37) interconnects the stationary member and the rotatable member and includes a blend of a base fluid (84) having a viscosity index of at least (110), an anti-oxidant additive, an anti-corrosive additive and an anti-wear additive, which are effective for resisting catalytic degradation in the hydro bearing.