Abstract:
An electric submersible motor is provided that includes a plurality of rotors and bearings mounted on a shaft, and a stator external to said rotors. A running clearance is located between an inner diameter of the stator and external diameter of the rotors, and includes a lubricating oil that includes a base hydrocarbon oil and a plurality of nanoparticles. Also provided is an improved lubricant oil and method of preparation thereof are provided. The lubricant oil includes a hydrocarbon containing base oil and a plurality of nanoparticles. The nanoparticles may be present in an amount up to 30% by volume.
Abstract:
A method for producing and operating for the first time a transmission unit with a lubricant based on water comprises the following steps: a mixture of vaporizable liquid, a comminuted solid lubricant and a preservative (22) are applied (21) to the finished rotary parts (20) and then dried (23), whereby a coating forms on them. The rotary parts with the coating are fitted into the casing of the transmission unit and the assembled transmission unit is filled with a cooling liquid (25), which is primarily water. The transmission unit is put into operation for the first time (27), the lubricant for further operation only being formed by the abrasion of the rotary parts and distribution of the abraded matter in the cooling liquid. The transmission unit is then operationally ready (28). Furthermore, a lubricant produced by this method is described.
Abstract:
A method of lubricating a moving surface is herein described wherein the lubricant composition contains a fatty acid, a neutralization agent, a pH buffer, and a carrier. Also described are compositions in both concentrate and dilute form. The compositions may also comprise additional functional ingredients.
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:
At least one kind of coating modifier selected from polyamidimide resin, epoxysilane and epoxy resin, and at least one kind of hard particles selected from silicon nitride and alumina are impregnated into a dry coating lubricant. The coating layer of a dry coating lubricant is formed on the sliding surface of the base material of a sliding member, with the surface roughness of this coating layer set to up to 3 μmRz in a ten point height of irregularities. The coating layer of a dry coating lubricant is formed on the sliding surface of the base material of a sliding member, the coating layer being formed in a film thickness of at least 10 μm on at least part of the sliding surface of the base material.
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.