Abstract:
The apparatus to put the process of the invention into practice comprises a silo 1 to dispense fat (oil), a duct 2 to feed in lime and optionally inert additives, a mixer 3 provided with a stirrer, at least a charging pot 4, a pocket vessel 5, a hopper provided with a distribution blade 6, a conveyor belt 7 continuously operating internally of the baking furnace, a baking furnace 8, a grid-type conveyor belt 9, a first crusher 10 and a mill 11. The powder lubricant obtained by said continuous process also has the advantage of exhibiting a better morphological appearance, more hardness and improved adhesion to the substrate to be lubricated.
Abstract:
Agent for the pickling of and as an antioxidant for workpieces made of iron and steel in the case of when they are subjected to non-cutting, hot transformation. The agent is used in dry form. The agent contains: (a) 20 to 80 percent by weight of a pickling-effective compound, such as, sodium metaborate; (b) 1 to 80 percent by weight of a component, such as, graphite; and (c) zero to 79 percent by weight of at least one substance selected from group (d), (e) and/or (f). Zero to 35 percent by weight of group (d), such as, coke, can be used as substance (c) and, for example, act as antioxidants. Zero to 50 percent by weight of group (e), such as, sodium chloride, can be used as substance (c), and control the physical characteristics. Zero to 5 percent by weight of group (f), such as, ammonium chloride, can be used as substance (c) and, for example, act on the reduction of the oxides of group (a).
Abstract:
A method of lubricating a railroad track comprising the steps of dispersing together a mixture of at least 30% by weight of powdered graphite having an average particle size of not larger than 50 microns, and an oil based carrier to yield a viscosity of approximately 25,000 centipoise at standard temperature and pressure; applying said dispersion to a railroad track and pressure fixing to form a film like coating thereon.
Abstract:
A plain bearing of the trimetal type wherein the antifriction layer is of an alloy with a Pb-Sn-Cu base, having a copper content from 2 to 6% by weight, a tin content from 8 to 13% by weight and the remainder being lead, the said alloy being added with an amount of carbon fibers, the alloy and carbon fibers being electrochemically deposited. The carbon fibers exhibit a random arrangement within the metal matrix and the fiber tips emerging from the alloy are embedded in the adjoining layer.
Abstract:
The present invention relates to a self-lubricating coating comprising a dispersion made of nanoparticles containing sulfur that are incorporated into a silver matrix, wherein the nanoparticles containing sulfur have the composition Ag2S and/or Au2S. The present invention furthermore relates to a self-lubricating coating comprising a dispersion made of fluorinated graphene, and/or carbon nanotube (CNT), and/or carbon nanoparticles of the formula (CF)x incorporated into a silver matrix, wherein the fluorinated graphene, CNT, or carbon nanoparticles of the formula (CF)x have a fluorine to carbon ratio of 1 to 1.25. The present invention furthermore relates to a method for the fabrication of the coating, and an electrical contact which comprises such a coating.
Abstract:
A threaded joint for steel tubes has a contact surface (30) including a threaded portion and a non-threaded metal-to-metal contact portion. The contact surface of at least one of a pin and a box of the joint is coated with a first plating layer (34) made of a Cu—Zn alloy or a Cu—Zn-M1 alloy (wherein M1 is at least one element selected from Sn, Bi, and In). An undercoat (32) of one or both of a Ni plating layer (32a) and a Cu plating layer (32b) and an overcoat of a Sn-M2 alloy plating layer (36) (wherein M2 is one or more elements selected from Bi, In, Ni, Zn, and Cu) may be formed below and above the first layer, respectively. A solid lubricating coating (38a) and a viscous liquid or semisolid lubricating coating (38b) may also be formed atop the plating layer as a lubricating coating (38).
Abstract:
A solid lubricant formulation useful for lubricating the flanges of locomotive wheels, railcar wheels, rail tracks and in applications where it is desirable to reduce friction when metal contacts metal. The solid lubricant formulation including at least one non-polylactic acid-based polymeric carrier, at least one polylactic acid-based polymer, and at least one lubricant powder.
Abstract:
A slide bearing for internal combustion engines, comprising a slide layer including a lubricant outer layer in which a solid lubricant is contained, and wherein the lubricant outer layer contains an element which is contained in the solid lubricant, at a maximum concentration of not less than 5 mass % in the lubricant outer layer, and at least a solid lubricant gathered particle is formed on a surface of the lubricant outer layer, the solid lubricant gathered particle being a particle of the solid lubricant formed by gathering a plurality of primary particles, the solid lubricant gathered particle having a long side of not less than 20 μm but less than 100 μm in terms of surface visual field of the lubricant outer layer.