Abstract:
An improved oil composition is disclosed. The oil composition includes a base oil comprising a hydrocarbon, the base oil having a base thermal conductivity. The oil composition also includes a first additive comprising a plurality of derivatized first additive nanoparticles dispersed within the base oil to form a modified oil having a modified thermal conductivity, wherein the modified thermal conductivity is greater than the base thermal conductivity. Alternately, an improved oil composition includes a base oil comprising a hydrocarbon and a first additive comprising a plurality of derivatized first additive nanoparticles dispersed within the base oil to form a modified oil comprising a stabilized suspension of the derivatized first additive nanoparticles in the base oil.
Abstract:
An improved oil composition is disclosed. The oil composition includes a base oil comprising a hydrocarbon, the base oil having a base thermal conductivity. The oil composition also includes a first additive comprising a plurality of derivatized first additive nanoparticles dispersed within the base oil to form a modified oil having a modified thermal conductivity, wherein the modified thermal conductivity is greater than the base thermal conductivity. Alternately, an improved oil composition includes a base oil comprising a hydrocarbon and a first additive comprising a plurality of derivatized first additive nanoparticles dispersed within the base oil to form a modified oil comprising a stabilized suspension of the derivatized first additive nanoparticles in the base oil.
Abstract:
The subject of the invention is a method for manufacturing of nanocomposite graphene-like greases and a unit for manufacturing of nanocomposite graphene-like greases, which is used for the manufacturing of molybdenum disulfide or tungsten disulfide based nanocomposite greases, intended especially for lubrication of slide bearings for heavy duty engines. Characterized in that the unit consists of a set of tape (2) guiding rollers (D and a set of pressure rollers (4) driven by a driving element (3), as well as a set of tape stretching rollers (5), and the created mixture of molybdenum disulfide or tungsten disulfide graphene-like plates with thickness below 100 nm and length below 1,0 μm with liquid glue material is created, then the mixture is placed on a tapes (2) of the unit, to completely glue the surface of the plates with tapes (2), and then after passing through the tape (2) and breaking of the plate structure, the plates are removed from the surface of the tapes (2).
Abstract:
Es wird eine Kolbenbeschichtung umfassend zumindest eine wässrige Dispersion ausgewählt aus der Gruppe bestehend aus Phenolharzen, Epoxidharzen, Polyvinylbutyral oder deren Kondensationsprodukten und zumindest einen Festschmierstoff ausgewählt aus der Gruppe bestehend aus Graphit, MoS 2 , WS 2 und BN bereitgestellt. Diese Beschichtung vermeidet den Einsatz toxischer Lösungsmittel und weist eine Verschleiβbeständigkeit und einen Reibungskoeffizienten ähnlich üblicher Beschichtungen auf.
Abstract:
A biphasic nanoporous vitreous carbon material with a cementitious morphology characterized by presence of non-round porosity, having superior hardness and tribological properties, as useful for high wear-force applications. The biphasic nanoporous vitreous carbon material is produced by firing, under inert atmosphere, of particulate vitrified carbon in a composition containing (i) a precursor resin that is curable and pyrolyzable to form vitreous carbon and, optionally, (ii) addition of one or more of the following: solid lubricant, such as graphite, boron nitride, or molybdenum disulfide; a heat-resistant fiber reinforcement, such as copper, bronze, iron alloy, graphite, alumina, silica, or silicon carbide; or one or more substances to improve electrical conductivity, such as dendritic copper powder, copper "felt" or graphite flake, to produce a superior vitreous carbon that is useful alone or as a continuous phase in reinforced composites, in relation to conventional glassy carbon materials.
Abstract:
Die Erfindung beschreibt eine Vorrichtung mit einem evakuierbaren Hohlraum der von einem Gehäuse umschlossen ist, wobei in dem Hohlraum und/oder an dem Gehäuse und in den Hohlraum hineinragend zumindest eine Reibbaugruppe und/oder Lagerbaugruppe angeordnet ist, die zumindest zwei Elemente mit je einer Oberfläche aufweist, wobei die beiden Oberflächen zusammenwirken und zumindest eine der beiden Oberflächen mit einem Gleitlack zumindest im Bereich des Zusammenwirkens beschichtet ist, der ein polymeres Bindemittel sowie Molybdändisulfid (MoS 2 ) und Graphit als Festschmierstoffe umfasst. Des Weiteren beschreibt die Erfindung eine Antifriktionspaste, eine Antifriktionsdispersion sowie die Verwendung eines Gleitlackes unter Hoch- bzw. Ultrahochvakuum.
Abstract:
A composition that includes solid lubricant nanoparticles and an organic medium is disclosed. Also disclosed are nanoparticles that include layered materials. A method of producing a nanoparticle by milling layered materials is provided. Also disclosed is a method of making a lubricant, the method including milling layered materials to form nanoparticles and incorporating the nanoparticles into a base to form a lubricant.
Abstract:
A threaded joint for steel pipes comprised of a pin 1 and a box 2 each having a threaded portion (1a, 2a) and an unthreaded metal contact portion (1b, 2b) exhibits adequate leakage resistance and galling resistance when used for makeup of oil country tubular goods with application of a green dope or even without any dope. The threaded joint has a first plating layer of Sn-Bi alloy plating or Sn-Bi-Cu alloy plating formed on the contact surface of at least one of the pin 1 and the box 2. The first plating layer may have a second plating layer selected from Sn plating, Cu plating, and Ni plating on its lower side and at least one layer of a lubricating coating, and particularly a solid lubricating coating, on its upper side.