Abstract:
Schmiermittel für ein Wälzlager, mit einem herkömmlichen Schmiermittel als Basisschmiermittel und mindestens einem ersten Additiv, wobei das erste Additiv Muskovit aufweist und das Schmiermittel einen Anteil an Muskovit aufweist, der zwischen 3% und 5% beträgt sowie ein Wälzlager mit einem derartigen Schmiermittel. Verfahren zur Herstellung sowie Reparatur von Wälzlagern unter Verwendung eines derartigen Schmiermittels.
Abstract:
The present invention provides a lubricating oil composition for reducing a friction coefficient adjacent to the surface of being subjected to lubrication. In particular, the present invention provides nanoporous particles capable of being dispersed in a lubricating oil composition comprising base oil having a lubricant viscosity. Since the nanoporous particles having nano-sized, oil soluble pores according to the present invention reduces a friction coefficient, and in the long term, gradually releases an effective ingredient, the lubricating oil composition comprising the same of the present invention can act as a reducing agent for reducing friction for a long period of time, and thereby, exhibit excellent lubricant effects.
Abstract:
The object of the invention is a method and an apparatus for lubricating a rope laid from wires in the manufacturing phase of the rope. By means of the invention lubricant, e.g. lubricant (5) containing solid substances such as grease, a grease compound or a paste, is spread onto at least one wire (1) of each strand of the rope to be laid. The lubricant (5) to be spread onto the wire (1) is dispensed onto the endless surface (10) moving in a different direction with respect to the direction of movement of the wire (1) and is conveyed on the aforementioned endless surface (10) into contact with the wire (1).
Abstract:
La présente invention concerne un procédé de transfert de chaleur à l'aide d'une composition renfermant des hydro(chloro)fluorooléfines. Elle a plus particulièrement pour objet un procédé de transfert de chaleur comprenant successivement une étape d'évaporation d'un fluide frigorigène, une étape de compression, une étape de condensation dudit fluide à une température supérieure ou égale à 70°C et une étape de détente dudit fluide caractérisé en ce que le fluide frigorigène comprend au moins une hydrofluorooléfine ayant au moins 4 atomes de carbone représentées par la formule (I) R 1 CH=CHR 2 dans laquelle R 1 et R 2 représentent indépendamment, des groupements alkyle, ayant de 1 à 6 atomes de carbone, substitués par au moins un atome de fluor, éventuellement par au moins un atome de chlore.
Abstract:
The present invention relates to a drilling fluid additive for improving lubricity or rate of penetration (ROP) in a drilling operation, such as an oil and gas drilling operation. The additive comprises particles of wax or waxy substance, or a mixture of two or more types of said particles having distinct properties, such as particle size, type of wax or waxy substance, melt point, solubility, dissolution rate, hardness, shape, blocking ability, or a combination thereof. In certain embodiments, the additive is environmentally friendly and biodegradable. The invention also relates to a drilling fluid comprising the drilling fluid additive of the invention. A method of improving lubricity or increasing ROP in a drilling operation is also provided, as well as a use of particles of wax or waxy substance or mixture thereof as a drilling fluid additive for improving lubricity or increasing ROP in a drilling operation.