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 metallic material for plastic working which has excellent lubricating properties. The metallic material for plastic working has a gradient two-layer lubricant layer which comprises a base layer located on the metal side, having a thickness of 0.1 to 15.0 mu m, and comprising an inorganic compound as the main component and a lubricant layer located on the surface side, having a thickness of 0.1 to 10.0 mu m, and comprising a lubricant as the main component and in which the ratio of the thickness of the lubricant layer to that of the base layer is from 0.2 to 3.0. The inorganic compound is preferably a phosphate, sulfate, borate, silicate, molybdate, tungstate, etc. The lubricant is preferably a metal soap, wax, polytetrafluoroethylene, molybdenum disulfide, graphite, etc. The metallic material may be iron, steel, stainless steel, etc. The gradient two-layer lubricant layer can be formed by bringing the surface of a metallic material into contact with a water-based treating liquid containing an inorganic compound and a lubricant as major ingredients and then drying the surface.
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.
Abstract:
Composite bearings employing cold forming and sintering techniques. Improvements in compositions for impregnating porous layers of composite bearings are provided comprising lead or lead alloy, perfluorinated polymer, particulate thermoplastic polymer and clay in particular proportions. When such materials are formed into bearings and subsequently sintered, improved resistance to stripping and wear is provided.
Abstract:
The present invention provides a new composite material comprising a porous matrix made of metal, metal alloy or semiconducting material and hollow fullerene-like nanoparticles of a metal chalcogenide compound or mixture of such compounds. The composite material is characterized by having a porosity between about 10% and about 40%. The amount of the hallow nanoparticles in the composite material is 1-20 wt. %.