Abstract:
A swash plate type compressor having a cylinder block with cylinder bores disposed parallel to the axis of the cylinder block. A rotary shaft rotatably mounted within the cylinder block carries an aluminum swash plate. The swash plate is fixed to the rotary shaft and has two facial surfaces and an end surface. The facial surfaces have a coating of between 0.0005 inches to 0.002 inches of a heat curable, cross-linked polyfluoro elastomer bonded directly to the aluminum, a lubricious additive and a load bearing additive. A piston reciprocally fitted within the cylinder bore contains shoes which slideably intervene between the piston and the swash plate facial surfaces and reciprocate the pistons by rotation of the swash plate. The coating on the swash plate permits the use of slow silicon alloy aluminum without the need of metal plating or high finish polishing.
Abstract:
Disclosed is a lubricant carrier salt for facilitating the cold forming of a workpiece of iron or steel, based on boric acid and/or alkali borate. The salt has an additional content of aliphatic di- or tricarboxylic acid, which either is unsubstituted or substituted by at least one hydroxyl group, and/or of alkali salts thereof, the weight ratio of boric acid/alkali borate to the acid is (5 to 15):1. Especially appropriate carboxylic acids are malonic acid, maleic acid, succinic acid, tartaric acid and/or citric acid.Inorganic or organic thickening agents, such as bentonite and/or polysaccharide, aluminate and/or silicate, dispersants, lubricants and/or antioxidants as well as titanium salt can be contained as additional components in the lubricant carrier salt of the invention.Also disclosed is a method for facilitating the cold working of a workpiece of iron or steel, in which the lubricant carrier salt is applied to the workpiece, provided if desired with a phosphate coating, out of an aqueous solution or dispersion with a concentration of 5 to 30 wt-% and with a temperature of 80 to 100.degree. C. by the immersion or pass-through method.
Abstract:
A lubricant for metal working comprising a dicarboxylic acid represented by the following general formula (I) or its amine salt or its alkali metal salt and a sulfur extreme pressure agent: ##STR1## wherein R.sub.1 stands for COOH or H; and R.sub.2 stands for H when R.sub.1 is COOH and COOH when R.sub.1 is H.
Abstract:
A refrigerator oil composition for a fluoroalkane refrigerant, which comprises a base oil composed principally of an oxygen-containing compound and, based on the total weight of the composition, 0.005-5.0 wt. % of a boron compound as an essential component.
Abstract:
A compressible graphite lubricant having a memory suspended in an anaerobic adhesive pipe sealant mixture of a polymerizable liquid acrylate ester monomer and a peroxy polymerization initiator. The graphite particles are formed of expanded graphite which gives the pipe sealant both compressibility and lubricating characteristics. The compound has the ability to change from a liquid with sufficient lubricity to assemble standard API and premium threaded connections without galling and then transform and fix itself into a continuous solid blocking or sealing agent in the gaps of the thread form. The expanded (compressible) graphite has a memory and, as part of the anaerobic fixing compound, allows the pipe sealant to maintain its sealing integrity under cycling of tension, compression, bending, and thermal expansion and contraction. The ability of the compressible lubricant/pipe sealant compound to maintain sealing integrity under cycling of tension, compression, bending, and thermal expansion and contraction loads makes it particularly suitable for use in vertical and horizontal oil and gas wells using oil country tubular goods tubing, casing, and drill pipe joint. An additional aspect of the invention involves a threaded pipe having a compressible lubricant/pipe sealant as described above deposited on at least a part of the threaded portion thereof.
Abstract:
Lubricating compositions including crystalline boric acid and a base lubricant selected from oils, greases and the like. The lubricity of conventional oils and greases can also be improved by adding concentrates of boric acid.
Abstract:
The present invention relates to a composition comprising a antimicrobially effective amount of a combination of an pyrithione and a lipopeptide antibiotic. Also disclosed is an aqueous industrial functional fluid comprising an aqueous base fluid medium and an antimicrobially effective amount of a combination of a pyrithione and a lipopeptide antibiotic. Also disclosed is a process for providing biocidal activity to an aqueous industrial functional fluid which comprises incorporating into said fluid an antimicrobially-effective amount of a combination of a pyrithione and a lipopeptide antibiotic.
Abstract:
An additive for a single stage aqueous alkaline cleaning composition for metal surfaces which imparts improved lubricity to the metal surfaces being treated. The additive is a fatty amine, preferably an ethoxylated fatty diamine.
Abstract:
A permanent mold casting powdery mold releasing agent according to this invention consists of a granulated or powdery mixture of a lubricant, an organic polymer and a metal soap; wherein the lubricant is coated with the organic polymer or the metal soap. Therefore, the mold releasing agent allows productions of castings of high quality, in a parmanent mold casting work, with good workability and without worsening environmental situations.
Abstract:
A water washable thermally conductive grease useful for thermal coupling of electronic chips and heat sinks in electronic modules comprises a hydrophilic alkylene oxide modified silicone carrier, and up to 90 weight percent of a microparticulate thermally conductive filler. In a preferred embodiment, the thixotropic dielectric composition further comprises an antioxidant and an ionic surfactant to promote wetting/dispersion of the microparticulate filler. The thermally conductive grease is non-corrosive, resistant to shear induced phase destabilization and capable of being washed from module surfaces with aqueous solutions. Substitution of the present hydrophilic based greases for art-recognized solvent washable greases eliminates use of non-aqueous solvents in electronic module processing/reprocessing operations.