Abstract:
A solid stick composition for use on steel surfaces that are in sliding or rolling-sliding contact. The solid stick composition comprises a vinyl ester resin, for example, from about 20 to about 80 weight percent vinyl ester resin, a solid lubricant, for example from about 0 to about 80 weight percent lubricant, and optionally a friction modifier, for example from about 0 to about 40% weight percent friction modifier, or a combination of a solid lubricant and a friction modifier. The solid stick comprises at least one of the lubricant or the friction modifier. A method of controlling friction between a metal surface and a second metal surface by applying the solid stick composition to one or more than one of the metal surfaces is also disclosed as well as a method of reducing lateral force in a rail system comprising applying the solid stick composition onto a wheel or rail surface.
Abstract:
The invention describes an apparatus having an evacuable cavity surrounded by a casing, there being arranged in the cavity and/or on the casing, and projecting into the cavity, at least one friction assembly and/or bearing assembly having at least two elements each having a surface, the two surfaces interacting, and at least one of the two surfaces being coated with a lubricating varnish, at least in the region of their interaction, the varnish comprising a polymeric binder and also molybdenum disulphide (MoS 2 ) and graphite as solid lubricants. The invention further describes an anti-friction paste, an anti-friction dispersion, and the use of a lubricating varnish under high or ultra-high vacuum.
Abstract:
A collapsible column for a steering shaft of a vehicle assembled in the steering shaft to non-rotatably and slidably fit a male shaft to a female shaft so that the outer peripheral part of the male shaft can be brought into contact with the inner peripheral part of the female shaft to transmit the torque when they are rotated. A grease composition conforming to JIS K2220 and having an apparent viscosity of 400 to 750 Pa·s (25°C) at a shear rate of 10 sec -1 is sealed in the gap between the outer peripheral part of the male shaft and the inner peripheral part of the female shaft. The collapsible column does not require an additional machining of the male shaft and the female shaft which increases the cost, and is comprehensively improved in durability, reduced in resistance, and increased in stick/slip resistance.
Abstract:
Systems, compositions, methods, etc., that provide significantly enhanced tribological properties to a target substrate such as metal, plastic, wood, glass, etc., by bombarding or showering the target material with bombardment particles substantially saturated with a desirable lubricant composition, typically comprising at least one primary lubricant such as a molybdenum disulphide (MoS2) and at least one polymeric lubricant, such as polytetrafluoroethylene (PTFE), such that the lubricant composition imbeds into the surface of the target material (also called a target substrate).
Abstract:
A solid lubricant and composition useful for lubricating the flanges of locomotive wheels, railcar wheels, rail track and in applications where it is desirable to reduce friction when metal contacts metal. The solid lubricant having from about twenty-five percent to about seventy percent by volume of a polymeric carrier, about five to seventy-five percent by volume of organic and inorganic extreme pressure additives, about zero to twenty percent by volume synthetic extreme pressure anti-wear liquid oil, and about zero to one percent by volume optical brightener.
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 preventing a seizure by repeated tightening and loosening operations without applying compound grease thereto, wherein a solid lubricating film including lubricating powder such as molybdenum disulfide and resin binder is formed on the contact surface of at least one of the pin and box by drying the film by a primary heating in the temperature range of 70 to 150 DEG C and by a secondary heating in the temperature range of more than 150 to 380 DEG C, the solid lubricating film thus obtained has a Rockwell M scale hardness of 70 to 140, an adhesive strength of 500 N/m or higher obtained by the SAICAS method (surface-boundary cutting method), and excellent seizure resistance and airtightness even in a high temperature well environment, and, when ultraviolet ray shielding particles such as titanium oxide are contained in the solid lubricating film, the rust-proofness of the threaded joint is increased.
Abstract:
he present invention provides compositions and methods for the coating and/or ballistic conditioning of firearm projectiles and firearm components including gun barrels, firearm chambers, fully assembled cartridges, shotgun shells, shotgun wads, shot capsules and sabots with molybdenum disulfide. The composition comprises powdered molybdenum disulfide suspended in a carrier comprising a volatile solvent and a binder selected from cellulosic-, alkyd- and acrylic-resins. Methods for the conditioning of firearm bores by the formation of a hardened layer comprising a product of the reaction or interaction of molybdenum disulfide with materials in the barrel bore are also disclosed.
Abstract:
A lubricant for hot rolling used when high-Cr stainless steel is hot rolled, the lubricant being supplied continuously at least while the hot rolling of high-Cr stainless steel is done, to the surface, which contacts the material to be rolled, of a working roll, the lubricant being obtained by dispersing 10-40 wt.% of iron hydroxide powder having an average particle diameter of not less than 0.1 mu m and less than 1 mu m into a viscous aqueous solution produced by dissolving a thickener, which comprises water-soluble high polymer, in water, the lubricant having apparent viscosity of 1000-50000 cP.
Abstract:
Thin impermeable, surface hardened, corrosion-resistant, durable, dry lubricant surface finishes are provided as well as surface finished products and methods for the production thereof. The surface finishes comprise particulate mixtures of sulfur containing metallic compounds and fluorocarbon polymers and are applied to surfaces of substrates such as metallic surfaces.
Abstract:
A rheologically controlled glass lubricant for hot metal working comprises a glass powder, a binder, a rheological agent, and a weetting and viscosity modifier. These materials may be dispersed in a carrier. The lubricant is made by mixing the constituent elements, milling the mixture, and stabilizing the milled mixture. The lubricant can be used in a forging operation by coating a metal part with the lubricant, heating the coated part, placing the coated heated part in a forge, and rapidly applying sufficient pressure to deform the coated metal part into a desired shape.