Abstract:
Die vorliegende Erfindung betrifft eine Schmiermittelzusammensetzung, umfassend a) Graphit; b) eine oder mehrere Metallverbindungen, die ausgewählt sind unter Calciumfluorid, Lithiumfluorid, Natriumaluminiumfluorid (Kryolith), Kaliumaluminiumfluorid, Kaliumtetrafluoroborat (KBF 4 ), Calciumsulfat, Strontiumsulfat, Bariumsulfat, Magnesiumcarbonat, Calciumcarbonat, Magnesium-Calciumcarbonat (Dolomit), Lithiumcarbonat, Lithiumhydroxid, , Magnesiumhydroxid, Calciumhydroxid, Aluminiumhydroxid, Aluminiumoxid, Siliziumdioxid, Titandioxid und Eisen-(II)-Eisen-(III)-Oxid (Magnetit) und c) eine oder mehrere organische Molybdänverbindungen. Die Schmiermittelzusammensetzung besitzt ausgezeichnete Schmierwirkung.
Abstract:
Dry film lubricant coatings are provided by using a silicone resin binder, either as an aqueous emulsion or in a solvent-based system, to fix an alkaline earth metal fluoride to a substrate. The compositions used to apply the coatings may also include relatively minor amounts of xylene, ammonium benzoate, a wetting agent, and/or a porosity-inducing agent-although none of those additives remains in the cured coating. Multi-layer dry film lubricant coatings are also disclosed, with the multi-layer coating having a basecoat layer as described above, and a topcoat layer made of a layer-lattice solid such as graphite or molybdenum disulfide, and a silicone resin, aluminum phosphate or an alkali metal silicate binder.
Abstract:
A threaded joint for steel pipe formed of a pin and a box having a contact surface including threaded parts and a non-threaded metal contact part and capable of stably assuring a seizure resistance and an airtightness without applying compound grease thereto, wherein a solid lubricating film formed with lubricating powder (example: molybdenum disulfide) and organic or inorganic binder is formed on the contact surface of at least one of the pin and box, the ratio of the area occupied by the secondary particles of 15 to 60νm in equi-area equivalent diameter of the lubricating powder in the cross section of the solid lubricating film in thickness direction is 5 to 90%, and fiber-like filler (example: inorganic substance whisker) in addition to the lubricating powder is mixed into the solid lubricating film at the mass ratio of the fiber-like filler to binder of 0.01 to 0.5, whereby, particularly, the seizure resistance at high temperatures can be improved.
Abstract:
The production of solid lubricant agglomerates by combining solid lubricant powder, an inorganic binder, other fillers if optionally desired, and a liquid to form a mixture, and driving off the liquid to form dry agglomerates which are subsequently classified by size or milled and classified by size to yield agglomerates of a desired size range. These agglomerates are then treated to stabilize the binder, thereby strengthening the binder and rendering it nondispersible in the liquid. The undesired size ranges can be readily recycled because the agglomerates with untreated binder can be reprocessed, thereby promoting high recovery rates.
Abstract:
A sliding bearing having a bearing alloy layer and, formed on the surface thereof, a coating layer containing a resin and a solid lubricant, characterized in that the resin contained in the coating layer has a glass transition temperature of 150 to 250°C and exhibits a great elongation at a high temperature. The sliding bearing is excellent in initial intimacy with a shaft and the resistance to seizure, and in addition thereto, combines satisfactory durability and heat resistance.
Abstract:
A sliding bearing having excellent initial conformability and seizure resistance as well as high durability and heat resistance is provided. A sliding bearing comprising a coating layer containing a resin and a solid lubricant formed on a bearing alloy layer, characterized in that the resin of said coating layer is a resin having a glass transition temperature of from 150°C to 250°C which has a great elongation at high temperatures.
Abstract:
A tungsten disulfide powder comprised of macro-spherical particles of tungsten disulfide having an average particle diameter of from about 5 to about 50 micrometers is prepared by successively treating spray-dried powders of ammonium metatungstate with heat in air and sulfidizing the resultant tungsten trioxide in a carbon disulfide-containing atmosphere at about 750 °C. The tungsten disulfide powder may also be formed to have a bimodal particle size distribution of the macro-spherical particles and smaller, dispersed micro- to submicron-sized fine particles.
Abstract:
An antifriction coating comprises a lubricant, a corrosion inhibitor, and a solvent, wherein the lubricant comprises a mixture of phenolic resin, epoxy resin, polyvinylbutyral resin and polyolefin wax, and the corrosion inhibitor comprises aluminium particles, zinc particles and a metal phosphate. Substrates are preferably pretreated by a phosphating process prior to coating with the antifriction coating. The antifriction coating is useful for coating substrates such as nuts, bolts and other fasteners, door, bonnet and boot lock parts, hinges, door stoppers, window guides, seat belt components, brake rotors and drums, and other transportation industry related parts.
Abstract:
Dry film lubricant coatings are provided by using a silicone resin binder, either as an aqueous emulsion or in a solvent-based system, to fix an alkaline earth metal fluoride to a substrate. The compositions used to apply the coatings may also include relatively minor amounts of xylene, ammonium benzoate, a wetting agent, and/or a porosity-inducing agent-although none of those additives remains in the cured coating. Multi-layer dry film lubricant coatings are also disclosed, with the multi-layer coating having a basecoat layer as described above, and a topcoat layer made of a layer-lattice solid such as graphite or molybdenum disulfide, and a silicone resin, aluminum phosphate or an alkali metal silicate binder.
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.