Abstract:
The invention provides a powder coating composition comprising of thermoplastic polymers, ceramic particles, and cermet particles for lowering the friction coefficient, and improving wear and corrosion resistance of coated surfaces in high-temperature, high-pressure, and corrosive environments. It also provides a method of coating application for improving adhesion of the coating to the substrate. The coating compositions are devoid of volatile organic solvents and can be applied on surfaces using thermal spraying, compression molding and other particle sintering approaches. A multilayer architecture consisting of an adhesive bottom layer and a non-adhesive, low friction top layer is disclosed. The coating can be used in oil and gas production and seawater injection.
Abstract:
Lubricant compositions having at least one base oil composition and a friction-reducing composition comprising at least a first diol compound are described. Methods for making such compounds and methods of drilling using such lubricant compositions are also described.
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:
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 CaSo4.
Abstract:
This invention relates to the use of ionic liquids as lubricants in vapor compression systems for cooling or heating. This invention also relates to an apparatus for adjusting temperature that operates a vapor compression cycle.
Abstract:
An aqueous lubricating composition comprising at least one divalent metal nitrate; at least one alkali metal hydroxide; at least one ionic surfactant; and at least one lubricant/release agent. Upon application to aluminum and titanium, the lubricating composition forms a dry film lubricant stable to heating to a temperature of 200 to 400° C, preferably 1100° C.
Abstract:
A lubricant composition. The lubricant composition includes (a) a phenate, a sulfonate, or both; and (b) a base composition wherein the base composition is (i) a metal carbonate and a metal sulfate, (ii) a metal sulfate and a metal phosphate; (iii) a metal sulfate and a metal carboxylate; (iv) a metal phosphate and a metal carboxylate; or (v) three-way or four-way combination of a metal sulfate, a metal carboxylate, a metal phosphate, and a metal carbonate; and (c) a lubricating oil or a grease.