Classifications

• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
  • C10M111/06—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a compound of the type covered by group C10M109/00
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/04—Elements
  • C10M2201/0403—Elements used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/04—Elements
  • C10M2201/041—Carbon; Graphite; Carbon black
  • C10M2201/0413—Carbon; Graphite; Carbon black used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/06—Metal compounds
  • C10M2201/061—Carbides; Hydrides; Nitrides
  • C10M2201/0613—Carbides; Hydrides; Nitrides used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/06—Metal compounds
  • C10M2201/065—Sulfides; Selenides; Tellurides
  • C10M2201/0653—Sulfides; Selenides; Tellurides used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/06—Metal compounds
  • C10M2201/065—Sulfides; Selenides; Tellurides
  • C10M2201/066—Molybdenum sulfide
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/06—Metal compounds
  • C10M2201/065—Sulfides; Selenides; Tellurides
  • C10M2201/066—Molybdenum sulfide
  • C10M2201/0663—Molybdenum sulfide used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/08—Inorganic acids or salts thereof
  • C10M2201/0803—Inorganic acids or salts thereof used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/086—Chromium oxides, acids or salts
  • C10M2201/0863—Chromium oxides, acids or salts used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
  • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M2209/1003—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
  • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
  • C10M2209/1033—Polyethers, i.e. containing di- or higher polyoxyalkylene groups used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
  • C10M2213/04—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions obtained from monomers containing carbon, hydrogen, halogen and oxygen
  • C10M2213/043—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions obtained from monomers containing carbon, hydrogen, halogen and oxygen used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
  • C10M2213/06—Perfluoro polymers
  • C10M2213/0606—Perfluoro polymers used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
  • C10M2213/06—Perfluoro polymers
  • C10M2213/062—Polytetrafluoroethylene [PTFE]
  • C10M2213/0623—Polytetrafluoroethylene [PTFE] used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
  • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M2217/041—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds involving a condensation reaction
  • C10M2217/0415—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds involving a condensation reaction used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
  • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M2217/044—Polyamides
  • C10M2217/0443—Polyamides used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
  • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M2217/045—Polyureas; Polyurethanes
  • C10M2217/0453—Polyureas; Polyurethanes used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2221/00—Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
  • C10M2221/02—Macromolecular compounds obtained by reactions of monomers involving only carbon-to-carbon unsaturated bonds
  • C10M2221/025—Macromolecular compounds obtained by reactions of monomers involving only carbon-to-carbon unsaturated bonds used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2221/00—Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
  • C10M2221/04—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M2221/0405—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds used as base material
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2010/00—Metal present as such or in compounds
  • C10N2010/04—Groups 2 or 12
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2010/00—Metal present as such or in compounds
  • C10N2010/06—Groups 3 or 13
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2010/00—Metal present as such or in compounds
  • C10N2010/08—Groups 4 or 14
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2010/00—Metal present as such or in compounds
  • C10N2010/10—Groups 5 or 15
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2010/00—Metal present as such or in compounds
  • C10N2010/12—Groups 6 or 16
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2010/00—Metal present as such or in compounds
  • C10N2010/14—Group 7
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2010/00—Metal present as such or in compounds
  • C10N2010/16—Groups 8, 9, or 10
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
  • C10N2020/01—Physico-chemical properties
  • C10N2020/055—Particles related characteristics
  • C10N2020/06—Particles of special shape or size
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
  • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/44—Super vacuum or supercritical use
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
  • C10N2050/015—Dispersions of solid lubricants
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
  • C10N2050/10—Semi-solids; greasy

Definitions

• the invention relates to a device with an evacuable cavity, which is enclosed by a housing, wherein in the cavity and / or on the housing and in the cavity protruding at least one friction assembly and / or bearing assembly is arranged, the at least two elements each having a surface wherein the two surfaces cooperate and at least one of the two surfaces is coated with a lubricating varnish at least in the region of interaction comprising a polymeric binder and molybdenum disulfide (MoS 2 ) and graphite as solid lubricants, an antifriction button with a polymeric binder the molybdenum disulfide (MoS 2 ) and graphite are contained as solid lubricants or an anti-friction dispersion with a polymeric binder in at least one dispersion medium, in which molybdenum disulfide (MoS 2 ) and graphite are contained as solid lubricants, and a method for avoiding the feeding, in particular the Kaltv welding, of
• the prior art has already used the application of antifriction paints which are applied to tribologically stressed surfaces or areas of frictional assemblies that tend to seize.
• the DD 290 210 A5 is an anti-friction paste known, which consists of a polymer binder, molybdenum disulfide, graphite, aluminosilicates and polyethylenepolyamine.
• the polymer binder used is epoxyborophenol resin.
• a sample transport device consisting of a mobile, gas-tight sealable, coated with Strahlungsabcapenden materials chamber, which is intended for the handling of radioactive samples.
• a telescopic arm is installed, which is equipped with one or more sample holders.
• the telescopic arm can be retracted together with the sample holders into the chamber.
• the telescopic arm with the help of a spindle, which is extended gas-tight over the chamber housing to the outside, and retractable.
• the moving parts of the telescopic arm are provided with a lubricating varnish.
• the object of the invention is to protect friction assemblies and / or bearing assemblies under vacuum against seizing.
• the proportion of the polymeric binder on the lubricating varnish is selected from a range with a lower limit of 20% and an upper limit of 80%
• the proportion of molybdenum disulfide is selected from one range with a lower limit of 15% and an upper limit of 50%
• the proportion of graphite is selected from a range having a lower limit of 5% and an upper limit of 30% by an anti-friction paste having this composition
• Anti-friction dispersion in which the proportion of the polymeric binder in the dispersion is selected from a range with a lower limit of 20% and an upper limit of 40%
• the proportion of molybdenum disulfide is selected from a range with a lower limit of 15% and an upper limit of 25%
• the proportion of graphite is selected from a lower limit range of 5% and an upper limit of 15% and the remainder forms the dispersing agent, as well as by the aforementioned method for avoiding feeding, in which the lubricating varnish of
• the composition according to the invention surprisingly exhibits, despite the high proportion of MoS 2 and graphite in the polymeric binder, an unexpected improvement in the composition of the invention. Wear resistance of the friction bauble and / or bearing assembly.
• a polyimide resin is preferably used, in particular, a polyamideimide resin.
• the advantage here is that the bonded coating thereby obtains high strength in a wide temperature range and also the thermal stability is improved. The resistance to alkalis and acids or various oxidants can be improved thereby.
• the proportion of polymeric binders is selected from a range with a lower limit of 30% and an upper limit of 70% or with a lower limit of 40% and an upper limit of 50% or in that the proportion of molybdenum disulfide is selected from a range with a lower limit of 20% and an upper limit of 45% or with a lower limit of 35% and an upper limit of 40% or the proportion of graphite can be selected from a range with a lower limit of 10% and an upper limit of 25% or a range with a lower limit of 15% and an upper limit of 20%.
• the ratio of molybdenum sulfide to graphite is selected accordingly.
• this ratio may be selected from a range with a lower limit of 1.5: 1 and an upper limit of 4.5: 1. It is thus possible to vary the self-lubricating behavior of the antifriction coating so that, if appropriate taking into account the respective proportions of molybdenum disulfide or graphite, i. when varying the proportions of these additives to the binder, in turn, at least one of the properties of the polymer layer are particularly adapted to the particular application.
• the molybdenum disulfide is preferably in accordance with a variant in the form of platelets chen in the bonded coating, these platelets have an average length which is selected from a range with a lower limit of 10 microns and an upper limit of 40 microns and / or a middle Width selected from a range having a lower limit of 10 ⁇ m and an upper limit of 40 ⁇ m and / or an average height selected from a range having a lower limit of 2 nm and an upper limit of 20 nm.
• the molybdenum disulfide platelets preferably align parallel to the surface coated with the lubricating varnish, so that these platelets are mutually displaceable under load and thus the lubricity of the lubricating varnish is improved.
• the molybdenum disulfide chips have an average length selected from a range having a lower limit of 15 ⁇ m and an upper limit of 35 ⁇ m and / or an average width selected from a region having a lower limit of 15 ⁇ m and an upper limit of 35 ⁇ m and / or an average height selected from a region having a lower one
• these platelets have an average length selected from a range with a lower limit of 18 ⁇ m and an upper limit of 25 ⁇ m and / or a limit of 5 nm and an upper limit of 15 nm average width selected from a range having a lower limit of 18 microns and an upper limit of 25 microns and / or a mean height selected from a range having a lower limit of 5 nm and an upper limit of 8 nm.
• these platelets do not necessarily have to have a square surface, but rather that these platelets can have an irregular habit, so that the mean length or height or width can also include individual values which lie outside the stated ranges, however the averaged individual values within the ranges.
• the graphite is preferably used with a grain size selected from a range with a lower limit of 2 ⁇ m and an upper limit of 8 ⁇ m. Particle sizes in this diameter range have shown in the practical application of the lubricating varnish on the device according to the invention a good effect in terms of avoiding cold welding.
• the surface of the anti-friction coating on the at least one element of the friction assembly and / or bearing assembly has an arithmetic mean roughness Ra according to DIN EN ISO 4287, the is selected from a range having a lower limit of 0.2 ⁇ m and an upper limit of 1.5 ⁇ m and a lower limit of 0.5 ⁇ m and an upper limit of 1.0 ⁇ m and a lower limit of 0, respectively; 8 ⁇ m and an upper limit of 0.9 ⁇ m.
• these measures ensure that the profiled tips form a smaller contact surface with respect to the entire surface of the interacting surfaces of the elements of the friction pair, and thus lower friction than would be expected on the basis of material selection alone.
• the tips make it possible to reduce the energy by forming work - in turn, the platelet-shaped molybdenum disulphide particles are advantageous - so that a uniform and smooth surface image is obtained as a result and the specific surface pressure can be reduced as a result.
• the coated surface has a maximum roughness profile height Rz according to DIN EN ISO 4287, which is selected from a region having a lower limit of 0.5 ⁇ m and an upper limit of 10 ⁇ m and a lower limit of 3 ⁇ m and an upper limit of 8 ⁇ m and a lower limit of 5 ⁇ m and an upper limit of 6 ⁇ m, respectively.
• the lubricating varnish is preferably produced with an average layer thickness which is selected from a range with a lower limit of 1 ⁇ m and an upper limit of 40 ⁇ m or a lower limit of 3 ⁇ m and an upper limit of 30 ⁇ m or a lower limit of 3 microns and an upper limit of 25 microns, whereby not only the above forming work can be adjusted according to the desired application of the friction pair under vacuum, but also the life of the layer by adaptation
• the two friction partners i. at least one of them is provided with a higher layer thickness of the anti-friction varnish.
• the higher layer thickness can also cause a repeated application of the lubricating varnish may not be required, so that the friction partners coated with it can be used several times in succession.
• the lubricating varnish advantageously has a hardness after drying selected from a range with a lower limit of 20 HV and an upper limit of 45 HV and a lower limit of 22 HV and an upper limit of 35 HV and a lower limit, respectively Limit of 25 HV and an upper limit of 30 HV, which not only the tribological properties of the bonded coating can be improved and thus the tendency of seizure under vacuum can be prevented, but also the fatigue strength of Reibpa- tion or the bonded coating is improved.
• the friction assembly and / or bearing assembly can be formed by a threaded assembly or a slide bearing assembly, wherein slide bearing assembly is not a slide bearing as known from the prior art means, ie that no additional slide bearing must be installed, but the sliding bearing due to the coating the mutually relatively movable parts is made with the lubricating varnish. But there are of course other uses possible, all of which take place under vacuum.
• the proportion of the polymeric binder in this dispersion is selected from a range with a lower limit of 25% and an upper limit of 35% and / or a range with a lower limit of 27.5% and an upper limit of 30%.
• the proportion of molybdenum disulfide in the dispersion may be selected from a range having a lower limit of 17% and an upper limit of 22% and a lower limit of 18.5% and an upper limit of 21.5%, respectively this proportion is 20%.
• the graphite component may be selected in embodiments from a range with a lower limit of 7% and an upper limit of 13% or with a lower limit of 8.5% and an upper limit of 11.5% or this graphite content may be 10% be.
• the object of the invention is further characterized by the use of a lubricating varnish, in particular of a polymer selected from a group comprising polytetrafluoroethylene, fluorine-containing resins, such as e.g. Polyfluoroalkoxy-polytetrafluoroethylene copolymers, ethylene-tetrafluoroethylene, fluorinated ethylene-propylene copolymers, polyvinyl fluoride, polyimide resins, in particular aromatic, polyamideimides, especially aromatic, polyaryletherimides, optionally modified with isocyanates, epoxy resins, phenolic resins, polyamide 6, polyamide 66, polyoxymethylene, silicones , Polyaryletherketone, polyaryl ether ether ketones, Polyvinylidendi- fluoride, polyethylene sulfides, allylene sulfide, poly-triazo-pyromellithimides, polyester imides, polyaryl sulfides, polyvinyl sulf
• high-vacuum or ultra-high vacuum mean pressures of 10 -3 mbar or 10 -8 mbar and below.
• a proportion of the polymer on the lubricating varnish is selected from a range with a lower limit of 30 wt .-% and an upper limit of 95 wt .-%, or is selected from a range with a lower Limit of 50% by weight and an upper limit of 85% by weight or selected from a range with a lower limit of 70% by weight and an upper limit of 75% by weight. It is thus achieved a firm cohesion of the layer of the bonded coating, in particular higher molecular weight polymers show a lower tendency in terms of evaporation.
• the anti-friction varnish contains at least one additive other than the polymer selected from a group comprising lubricants, such as MoS 2 , h-BN, WS 2 , graphite, polytetrafluoroethylene, Pb, Pb-Sn alloys, CF 2 , PbF 2 , hard materials such as CrO 3 , Fe 3 O 4 , PbO, ZnO, CdO, Al 2 O 3 , SiC, Si 3 N 4 , SiO 25 Si 3 N 4 , clay , Talc, TiO 2 , MuIHt, CaC 2 , Zn, AlN, Fe 3 P, Fe 2 B, Ni 2 B, FeB, metal sulfides such as ZnS, Ag 2 S, CuS, FeS, FeS 2 , Sb 2 S 3 , PbS, Bi 2 S 3 , CdS, fibers, in particular inorganic,
• lubricants such as MoS 2 , h-BN, WS 2 ,
• Coating coatings can generally be considered as dry lubricants. These usually consist of solid lubricants that can bond with the resin to withstand the stresses.
• resin is understood as meaning a synthetic resin which is preferably a polyimide resin (PI) or a polyamide dimer resin (PAI).
• polystyrene resins may also be used as the polymeric binder, e.g. Epoxy resins, polyarylene sulfides, phenoxy resins, polysulfone resins.
• the lubricating varnish is used for assemblies which are used under vacuum, these friction assemblies and / or bearing assemblies consisting of two elements, of which at least one surface of an element is provided with the lubricating varnish.
• both surfaces, which interact with each other, are provided with this lubricating varnish.
• a threaded assembly can be seen. This may be e.g. to a threaded bolt with a screw-nut or an internally threaded blind hole in the one, with an externally threaded bolt is screw act. Also differently designed threaded rib assemblies are possible within the scope of the invention.
• the bolt is provided in the region of the thread with the lubricating varnish, since the application of the lubricating varnish on the external thread is easier.
• the lubricating varnish layer on the surface of the one element it is possible to pretreat this surface, for example by cleaning, degreasing, by placing a primer layer, by roughening, by the arrangement of a primer and the like.
• the substrate of the lubricating varnish can be applied by conventional methods, such as by brushing in the case of training as anti-friction paste or by spraying in the case of training as anti-friction dispersion.
• conventional methods such as by brushing in the case of training as anti-friction paste or by spraying in the case of training as anti-friction dispersion.
• Other methods such as diving, drumming, dip centrifuging, etc. are of course also suitable.
• the lubricating varnish is dried. This can be done either by air drying or by heat curing, whereby the
• Bonded coating obtains the hardness required for use, which is preferably in the claimed range described above.
• the lubricating varnish can act through the self-lubricating solids, such as molybdenum disulfide or graphite, on the other hand, an additional effect may occur in that these particles, in particular the molybdenum disulfide particles, have a platelike habit, so that these platelets can slide off one another and thus the lubricating effect is promoted.
• the self-lubricating solids such as molybdenum disulfide or graphite
• the seizure or cold welding is prevented, which can occur when surfaces are pressed together under load, as is the case for example when a threaded bolt is screwed into a corresponding recess.
• the interacting surfaces form strong bonding forces, this formation of bonding forces being aided by the local high pressure encountered and the heat generated by the movement.
• the bonded coating is applied.
• friction assembly and / or bearing assembly also means a slide bearing assembly, wherein this slide bearing assembly does not have a conventional sliding bearing per se. Rather, this is understood to mean that the bonded coating is applied directly to a surface of at least one element of this friction assembly and / or bearing assembly, optionally with the interposition of an adhesive layer, again corresponding surface pretreatment methods such as degreasing, etc. are possible in order to allow a relative movement of the two elements of the friction assembly and / or bearing assembly.
• a sliding bearing assembly may for example be a telescopic arm, wherein the relative movement through the two telescopic arms, which are, for example, pushed into each other, takes place.
• Other friction assemblies and / or bearing assemblies in the form of plain bearing assemblies may be, for example, spherical bearing bushings, etc.
• the resin in particular the polyimide resin
• a solvent in particular being an organic solvent, such as e.g. Xylene, is. It thus facilitates the processability of the anti-friction paste.
• the solvent content may be selected from a range with a lower limit of 40% by weight and an upper limit of 80% by weight, in particular with a lower limit of 50% by weight and an upper limit of 70% by weight.
• the device according to the invention can be designed, for example, as a so-called glove box, as are manipulators for toxic substances, such as e.g. Radiactive substances or substances of health concern in the medical field, possible.
• toxic substances such as e.g. Radiactive substances or substances of health concern in the medical field, possible.
• Other uses, such as Vacuum pumps or the like, are also conceivable.
• this may also contain conventional processing auxiliaries, such as, for example, Defoamer, leveling agents, etc., included.
• the anti-friction paste according to the invention ie the anti-friction paste, has been improved by its ability to To avoid the cold welding of surfaces, these surfaces in particular metal surfaces, ie, for example, steel on steel or the like., To be prepared, the following compositions.
• the lubricating varnish of the assembly was also tested for hardness and in turn the compositions according to Table 1 were used and the hardness of the layer was measured. These examples were compared to Table 1 with compositions containing over 50% molybdenum disulfide and over 30% graphite. It has been found that, in particular due to the high molybdenum disulphide content, the layers were clearly too soft and already detached after a short time, so that the avoidance of cold welding could not be ensured with sufficient certainty.

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=38541451

Family Applications (1)

Country Status (3)

Cited By (6)

Families Citing this family (1)

Citations (4)

• 2006
  • 2006-03-24 AT AT0050606A patent/AT503504B1/de not_active IP Right Cessation
• 2007
  • 2007-03-15 EP EP07710515A patent/EP2001982A2/de not_active Withdrawn
  • 2007-03-15 WO PCT/AT2007/000125 patent/WO2007109817A2/de active Application Filing

Patent Citations (4)

Also Published As

Similar Documents

Legal Events