Abstract:
A method for lubricating a metal workpiece during a metalworking process includes delivering supercritical carbon dioxide to the workpiece during the metalworking process. The supercritical carbon dioxide acts as a lubricant, coolant, chip evacuator, and/or carrier for another lubricant or corrosion inhibitor.
Abstract:
There is provided a sliding member coating composition for forming a coating on the surface of a sliding member, which contains a binder resin, abrasion inhibiting members, and a solid lubricant as needed. The shape of the abrasion inhibiting members is a panel shape having an aspect ratio of 5 to 100 expressed by average particle diameter/average particle thickness, and has an average particle diameter of 15.0 μm or smaller and a Moh's hardness of 6 or higher. The content of the solid lubricant can be set to 0 to 15 parts by weight with respect to 100 parts by weight of the binder resin, and the content of the abrasion inhibiting members to 1 to 100 parts by weight with respect to 100 parts by weight of the binder resin. The solid lubricant may not be blended. The abrasion inhibiting members are preferably aluminas. According to the sliding member coating composition in the present invention, even when being exposed to severe frictional conditions for a long time, preferable lubricity can be guaranteed.
Abstract:
The present invention provides a lubricant for hot metal working which is capable of inhibiting generation of white scale, attributed to the lubricant, on the surface of a workpiece material and is capable of improving lubricity to obtain favorable appearance of the finished product. The lubricant for hot metal working comprises a silicate compound used for adding to a lubricant composition mainly containing sodium borate.
Abstract:
A film-forming lubrication composition for make-up of threaded connections, intended to cover at least one threading (FE, FI) and a make-up abutment (BVM, BVF) of a threaded element (EM, EF) of a component (T2, T1) of a threaded tubular connection (JF) with a solid state film which adheres to the threading (FE, FI) and to said make-up abutment (BVM, BVF), said make-up abutment (BVM, BVF) being intended to bear against another abutment (BVF, BVM) of another component (T1, T2) of said threaded tubular connection (JF) during the terminal make-up phase, and said lubrication composition comprising a matrix. The matrix further comprises at least one rheoresistant material selected so as to endow said composition, as a complement to lubrication, with a shouldering torque which is at least equal to a threshold value.
Abstract:
The present invention is directed to lubricating oils of improved antioxidancy comprising a base oil selected from the group consisting of mineral oils, synthetic oils and mixtures thereof containing an effective amount of one or more organometallic compound and/or coordination complex selected from the group consisting of (a) a metal or metal cation with more than one oxidation state, above the ground state, and two or more anions, (b) a metal or metal cation with more than one oxidation state above the ground state and one or more bidentate or tridentate ligands, (c) a metal or metal cation with more than one oxidation state above the ground slate, and one or more amines and one or more ligands, and (d) mixtures thereof, to a method for improving the antioxidancy of formulated lubricating oil compositions by the addition thereto of an effective amount of the aforementioned organometallic compound, and/or coordination complex, and to an additive concentrate containing the aforementioned organometallic compound and/or coordination complex.
Abstract:
The present invention relates to composition of metalworking fluid based on heavy alkyl benzenes having 20 to 22 alkyl carbon atoms and process for the preparation thereof. The heavy alkyl benzene based, less toxic, soluble metalworking fluid composition comprises heavy alkyl benzene, emulsifier, lubricity booster, antioxidant, fungicide, extreme pressure additive, antirust, co-surfactant, coupling agent and alkali component. The process comprises tailoring the heavy alkyl benzene, removing of insoluble matter from the heavy alkylate, addition of emulsifier, additives, coupling agent and co-surfactant, homogenizing the mixture at 20-120° C., followed by conditioning of the soluble metal working fluid concentrate which can be used as emulsion in water.
Abstract:
The present invention relates to compositions comprising flammable refrigerant, fire hazard-reducing agent, and optionally a lubricant suitable for use in a refrigeration or air conditioning apparatus. Further, the present invention relates to compositions comprising lubricant and fire hazard-reducing agent and methods for reducing flammability of flammable refrigerant, for delivering a fire hazard-reducing agent to a refrigeration or air conditioning apparatus, and for replacing a non-flammable refrigerant with a flammable refrigerant.
Abstract:
The present invention relates to novel lubricant additives for improving the tribological properties, novel lubricants containing these additives, processes for the preparation thereof and the use thereof.
Abstract:
A solid lubricant and composition 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 having from about 25% to about 70% by volume of a biopolymer polymeric carrier, about 5% to 75% percent by volume of organic and inorganic extreme pressure additives, about 0% to 20% by volume synthetic extreme pressure anti-wear liquid oil, and about 0% to 1% by volume optical brightener.
Abstract:
The present invention provides a friction control composition comprising a binder a rheological control agent, and optionally a lubricant. The liquid friction control composition may also comprise other components 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.