摘要:
A water based dispersion that includes lubricating nanoparticles. The lubricating nanoparticles can be provided by at least one intercalation nanoparticle of a metal chalcogenide in dispersion with the water base. The at least one intercalation nanoparticle may have a geometry that is fullerene-like, tubular-like structure or be substantially spherical or the intercalation nanoparticles may include particles have each of the aforementioned geometries. The intercalation nanoparticle is surface treated with a dispersant that is water soluble and includes a polar functional group.
摘要:
The invention relates to a fat composition comprising: (a) at least one synthetic or natural mineral-based oil, (b) a thickener, (c) at least one solid lubricant consisting of at least one transition metal chalcogenide having an inorganic fullerene structure, and (d) at least one anti-wear and/or extreme pressure organophosphate and/or organophosphosulfate additive. The invention also relates to the use of a fat composition as defined above in homokinetic joints of motor vehicle transmissions. The invention relates to a homokinetic joint containing such a fat.
摘要:
A lubricant oil comprising a first combustion enhancer comprising at least one metal ion selected from the lanthanides or actinides; and a second combustion enhancer comprising at least one metal ion different from the first combustion enhancer selected from the transition metals, Sn, Pb, Sb, and Bi.
摘要:
Die Erfindung betrifft Nanopartikel eines Authentifizierungssystems zum Markieren von und zum Nachweis der Markierung in Erdöldestillaten und Rohölen, mit einer ausserhalb von deren Eigenfrequenz fluoreszierenden Substanz, insbesondere in Motorölen und Schmiermitteln. Eingeschlossen sind äquivalente, natürliche und synthetische Erzeugnisse. In den Nanopartikeln sind thermo- und photostabile, fluoreszierende Farbpigmente aus wenigstens einem metallorganischen Komplex auf der Basis von Übergangsmetallen der Platingruppe, eingeschlossen dessen wasserlösliche Salze, dispergiert. Die Farbpigmente sind insbesondere Rutheniumkomplexe.
摘要:
A lubricant molded body, which is to be applied to a surface of a photosensitive layer for electrophotography in an image forming apparatus, for example, is composed of at least two kinds of higher fatty acid metallic salts having respectively different carbon numbers. As the higher fatty acid metallic salt that forms lubricant molded body, compounds such as zinc stearate, calcium stearate, barium stearate, aluminum stearate, zinc laurate, calcium laurate, etc. may be recited. The higher fatty acid metallic salts may contain at least one kind of fillers selected from the group consisting of silica, alumina, tungsten disulfide, molybdenum disulfide, graphite fluoride, graphite, boron nitride, polytetrafluoroethylene (PTFE), ethylene tetrafluoroethylene (ETFE), and polyvinylidene fluoride (PVDF).
摘要:
An additive for imparting antiwear properties to a lubricant composition is based on a combination of (1) an organo borate ester composition and (2) one or more sulfur-or phosphorus-containing compounds or a non-sulfur molybdenum compound. The sulfur-or phosphorus-containing compounds are dithiocarbamate, bisditiocarbamate, 1,3,4-diathiazole, phosphoroditioate, phosphoroditioate esters, and the molybdenum compound is prepared by reacting (a) about 1.0 mole of fatty oil having 12 or more atoms (b), about 1.0 to 2.5 moles diethanolamine and (c) a molybdenum source.
摘要:
A chemical process for treating the surface of a piston ring to reduce its surface friction includes immersing piston ring in machine oil, heating to 220-250 °C, adding the following components to form a mixture:
alkali-metal carbonate 0.15-0.50wt%
alkali-metal nitrite 0.15-0.50wt%
alkali-metal chloride 0.10-0.30wt%
alkali-metal nitrate 0.50-1.2wt%
acidic manganese phosphate 0.40-1.1wt%
Ce-containing rare-earth metal powder 0.30-0.90wt%
machine oil rest,
the contents of above components are based on the total weight of the whole solid additives and machine oil, then maintaining said temperature for 10-24 hours, cooling to 50°C and taking out the piston ring. The invention can be used to improve various piston rings of the cylinder including engines such as gasoline engine and diesel engine, as well air compressors etc. The process can obviously improve the work efficiency of the piston ring and the cylinder and prolong the operational life of the whole cylinder. It can not only save fuel but also reduce exhaust pollution from vehicles and air compressors, which results in good prospect in industry.