Abstract:
Die Erfindung betrifft einen von organischen Lösungsmitteln freien Polyamidimid-(PAI)-Gleitlack, nachfolgend als lösungsmittelfreier PAI-Gleitlack bezeichnet, auf Wasserbasis und dessen Verwendung für die Beschichtung von metallischen Oberflächen.
Abstract:
L'invention a pour objet élément tubulaire destiné au forage et/ou à l'exploitation de puits d'hydrocarbures présentant une extrémité (1;2) comprenant au moins une zone filetée (3;4), caractérisé en ce que l'extrémité (1;2) est au moins partiellement revêtue d'un film sec (12), comprenant une matrice (13) comportant un mélange d'au moins un polysilicate alcalin et d'au moins un polymère organique thermoplastique semi-cristallin. L'invention a également pour objet un procédé de réalisation d'un film sec (12), comprenant une matrice (13) comportant un mélange d'au moins un polysilicate alcalin et d'au moins un polymère organique thermoplastique semi-cristallin, sur un tel élément tubulaire destiné au forage et/ou à l'exploitation de puits d'hydrocarbures.
Abstract:
A sliding layer for a multi-layer bearing material that is free of lead. The sliding layer can include PTFE, sphalerite, and solid lubricants. The solid lubricants can include graphite and antimony oxide. In some embodiments, the sliding layer includes from 70 to 89 vol% PTFE, from 10 to 20 vol% sphalerite, and from 1 to 10 vol% solid lubricant (for example, graphite and antimony oxide).
Abstract:
Die vorliegende Erfindung betrifft eine Schmiermittelzusammensetzung, umfassend a) Graphit; b) eine oder mehrere Metallverbindungen, die ausgewählt sind unter Calciumfluorid, Lithiumfluorid, Natriumaluminiumfluorid (Kryolith), Kaliumaluminiumfluorid, Kaliumtetrafluoroborat (KBF 4 ), Calciumsulfat, Strontiumsulfat, Bariumsulfat, Magnesiumcarbonat, Calciumcarbonat, Magnesium-Calciumcarbonat (Dolomit), Lithiumcarbonat, Lithiumhydroxid, Magnesiumhydroxid, Calciumhydroxid, Aluminiumhydroxid, Aluminiumoxid, Siliziumdioxid, Titandioxid und Eisen-(ll)-Eisen-(lll)-Oxid (Magnetit) und c) eine oder mehrere organische Molybdänverbindungen. Die Schmiermittelzusammensetzung besitzt ausgezeichnete Schmierwirkung.
Abstract:
A 3-n X n N@C 80 endohedral metallofullerenes used as or in lubricant, lubricant additive, corrosion-resistant, and thermally conductive materials are disclosed. Methods of making and using are provided.
Abstract translation:用作润滑剂,润滑剂添加剂,耐腐蚀和导热材料中的或用于润滑剂的N 3 N n N N C C 80内嵌金属富勒烯 被披露。 提供制造和使用方法。
Abstract:
A tungsten disulfide powder comprised of macro-spherical particles of tungsten disulfide having an average particle diameter of from about 5 to about 50 micrometers is prepared by successively treating spray-dried powders of ammonium metatungstate with heat in air and sulfidizing the resultant tungsten trioxide in a carbon disulfide-containing atmosphere at about 750 °C. The tungsten disulfide powder may also be formed to have a bimodal particle size distribution of the macro-spherical particles and smaller, dispersed micro- to submicron-sized fine particles.
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 stably assuring a seizure resistance and an airtightness without applying compound grease thereto, wherein a solid lubricating film formed with lubricating powder (example: molybdenum disulfide) and organic or inorganic binder is formed on the contact surface of at least one of the pin and box, the ratio of the area occupied by the secondary particles of 15 to 60 mu m in equi-area equivalent diameter of the lubricating powder in the cross section of the solid lubricating film in thickness direction is 5 to 90%, and fiber-like filler (example: inorganic substance whisker) in addition to the lubricating powder is mixed into the solid lubricating film at the mass ratio of the fiber-like filler to binder of 0.01 to 0.5, whereby, particularly, the seizure resistance at high temperatures can be improved.
Abstract:
A sliding material exhibiting excellent initial compatibility, excellent sliding characteristics even under severe sliding conditions, especially excellent frictional characteristics and wear resistance under fluid lubrication, boundary lubrication and dry lubrication, and having a solid state lubrication coating film. The sliding material having a solid state lubrication coating film on a planar basic material is characterized in that a plurality of concentric grooves are made in the circumferential direction on the sliding surface and a ridge is formed between adjacent grooves.
Abstract:
The present invention provides a new composite material comprising a porous matrix made of metal, metal alloy or semiconducting material and hollow fullerene-like nanoparticles of a metal chalcogenide compound or mixture of such compounds. The composite material is characterized by having a porosity between about 10 % and about 40 %. The amount of the hallow nanoparticles in the composite material is 1-20 wt.%.
Abstract:
The present invention relates to lubricant compositions and can be used for treatment of friction units in different machines and mechanisms in manufacturing processes, the purpose of which is modification of friction surfaces. The basis of the invention is the improvement of lubricant composition, in which as the consequence of the additional use of thickener and wax, the viscosity of lubricant composition sufficient for conversation of uniform distribution of solid component in lubricant composition in broad temperature range is provided; and at the expense of that, the possibility of conservation of lubricant composition in any packaging and bulks, which are usable even under operating conditions of machines and mechanisms, is reached. The lubricant composition acquires the state of gel, that is convenient to put on any friction surface, to deposit on a zone of friction of any friction units. The lubricant composition ensures the receiving of engineering results similar to those, which solid components exhibit using fine-dispersed powder on basis of natural minerals from flaky silicates series and at the same time the sedimentation properties of lubricant composition permit its continuous conservation in broad temperature range without variation of lubrication and modification properties.