Abstract:
La présente invention se rapporte à une composition de démoulage, destinée à la fabrication de pièces en matériau à prise hydraulique, comprenant en pourcentage en masse par rapport à la masse de la composition de démoulage, au moins: - de 10 à 20% d'une huile; - de 1 à 5% d'un agent hydrofuge; - de 0,1 àl% d'un sel de calcium; - de 0,5 à3% d'un tensioactif non-ionique ou un mélange de tensioactifs ayant un rapport hydrophile - lipophile (HLB) supérieure à 8; et - de l'eau.
Abstract:
The object of the invention is a traction sheave elevator and a rope (3) that contains metal as a load-bearing material, such as the suspension rope of an elevator, which rope comprises at least one or more strands (7) laid from metal wires (9) and which rope (3) is lubricated with a lubricant (8). Another object is the use of the aforementioned lubricant for lubricating the rope (3). The lubricant (8) comprises at least oil and thickener, which thickener in the lubricant (8) comprises at least 10% or more of the mass of the lubricant (8).
Abstract:
A lubricating composition comprising: (i) from 50% to 99% by weight of base oil; (ii) from 0.01% to 5% by weight of ionic liquid; and (iii) from 0.01% to 10% by weight of additive; wherein the lubricating composition has a pour point of at most -54°C, a flashpoint of at least 246°C and a kinematic viscosity at 100°C in the range of from 4.9 to 5.4 mm 2 /s. The lubricating compositions according to the present invention are suitable for use in turbine engine oils and are useful for reducing the build up of sludge and for reducing coking in the lubricating composition.
Abstract:
The resistance to oxidation of a lubricating oil is enhanced by the addition to the lubricating oil of an additive amount of an ionic liquid.
Abstract:
Systems and methods for the synthesis of lubricant-containing microcapsules are disclosed. Embodiments of composite nickel and copper coatings containing capsules with liquid lubricating oil cores are also disclosed. In certain embodiments, microcapsules can be incorporated into a metal plating solution to perform composite electrodeposition to obtain self lubricant metallic coatings. In some embodiments, much lower friction coefficient (-0.8) and far better wear resistance was obtained with the copper/microcapsules composite.
Abstract:
In one embodiment, a hydraulic oil with favorable seal swell is disclosed. The hydraulic oil comprises, a major amount of base stock, an antiwear additive, a phosphorous containing additive wherein the phosphorous comprises at least 10 ppm and less than 2500 ppm of the hydraulic oil, the hydraulic oil contains less than 200 ppm zinc and less than 100 ppm sulfur, wherein the ratio of phosphorous to metal ratio is chosen to obtain a favorable seal swell performance with at least a ratio of 0.5 and less than 20. In a second embodiment, a method to improve seal swell is disclosed. In a third embodiment, a method of formulating an oil to improve seal swell performance is disclosed. In a fourth embodiment, a method of improving seal swell is disclosed. The method uses a system cleaner for hydraulic systems comprising CaSo 4 .
Abstract:
An aqueous slurry composition for lapping, saw wire cutting, and finishing operations which contains about 0.1 to 70% by weight of abrasive particles, 0.1 to 20% by weight of suspending particles that have a density of less than or similar to the aqueous or semi-aqueous carrier medium, and the method for creating the suspension.
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:
Lubricant oil compositions containing a base oil and an additive package comprising one or more wear-resistant additives. The wear-resistant additives can be (a) a Group 1a alkali metal carbonate, a Group 2a alkaline earth metal carbonate, or a mixture thereof; (b) Group 1a alkali metal sulfate, a Group 2a alkaline earth metal sulfate, or a mixture thereof; (c) a Group 1a alkali metal phosphate, a Group 2a alkaline earth metal phosphate, or a mixture thereof; (d) Group 1a alkali metal carboxylate, a Group 2a alkaline earth metal carboxylate; or (e) a combination of (a), (b), (c), and (d). The wear-resistant additives are in the form of nanoparticles.