Abstract:
An environmentally friendly lubricant composition useful for well contains: between 40% and 80% by volume of unsaturated fatty acid(s) having between 16 and 26 carbon atoms and between one and three carboxylic acid moieties, or triglyceride(s) having from 16 to 26 carbon atoms and at least one double bond, or mixture thereof; at least about 20% by weight of a suspension agent which is a Group I and/or Group II metal salt or base that is reactable with a carboxylic acid moiety in the unsaturated fatty acid; a film-forming amine R1—N—(R)2 wherein the amine has between ten and thirty carbon atoms; or mixtures thereof, wherein the amount of suspension agent is sufficient to provide at least a 50% overbased composition; and between about 10 and about 50 pounds of a polymeric beads per barrel of lubricant composition, wherein said lubricant composition is blended to form a substantially homogenous composition.
Abstract:
This invention provides a non-asbestos friction material excellent not only in performance at the time of braking under high loading at high temperatures but also in performance at the time of braking under low loading at low temperatures even if lead sulfide is not used in the filler. In the non-asbestos type friction material comprising a non-asbestos fiber base material, a filler and a binder, the filler comprises spherical bronze powder and artificial graphite and is free of lead sulfide.
Abstract:
Silicone grease comprising (A) an amino-modified silicone fluid having an amine equivalent of 10,000 to 200,000 g/mol and a viscosity of 10 to 100,000 cs at 25.degree. C., and (B) a thickener exhibits improved heat resistance and low-temperature resistance.
Abstract:
The present invention includes a method for the manufacture of a bearing seal which includes providing a polymer and/or a filler coated with a polymer and thereafter heating the coated filler to bond the copolymer to the filler. Following cooling of the coated filler, it is pulverized and added to granular polytetrafluoroethylene. This admixture is then mixed to obtain a uniform blend and thereafter shaped by compacting and heating into a preselected form. Fillers suitable for the present invention may be carbon, metal, glass, carbide, disulfide, polymeric, polyester fluoride and ceramic fibers.
Abstract:
There is provided an improved process for isothermal shaping of a titanium-containing workpiece in a hot die. A precoat lubricant composition including a glassy component and a solid lubricant such as graphite dispersed in an organic medium is applied to the workpiece, and the workpiece heated to a temperature sufficient to remove the organic medium to leave a residue of glassy material and graphite on the workpiece. The workpiece is then inserted in a heated split die, and the die loaded to alter the shape of the workpiece. The ratio of the solid lubricant to the glassy component is at least one to one. The particle size of the glassy component is important to the surface character of the finally shaped workpiece.
Abstract:
A solid lubricant comprising a substantially amorphous carbon micro-sphere selected from carbon micro-beads and carbon micro-balloons having a particle size of 0.1 to 1,000.mu. and a specific gravity of the particle of 0.2 to 2.0, which has excellent low frictional coefficient and wearing resistance.
Abstract:
A forging compound particularly adapted for hot die dwell forging of titanium and its alloys comprises boundary layer particles (boron nitride or graphite) and a major quantity (more than 60% by weight) of vitreous components. The vitreous components comprise diboron trioxide and silica frit containing a metal oxide wetting agent. In a preferred form, the forging lubricant comprises about 14 to 25% by weight boron nitride particles, balance, vitreous components. The latter comprise about 60% to 75% by weight diboron trioxide, balance silica glass containing cobalt oxide wetting agent in an amount of 1.0 to 3% by weight of the vitreous components. All the foregoing ingredients may be dispersed in a coatable carrier preferably comprising a solvent, e.g., xylene, in which a resin binder is dissolved. A method of using the lubricant includes coating workpieces with the lubricant, heating the workpieces to forging temperature, and imposing forging pressure on the workpiece within an enclosed die for a dwell period to creep-flow the workpiece metal into conformity with the forging die.
Abstract:
A method of making composite material which provides low friction surfaces for materials in rolling or sliding contact. The composite material is self-lubricating and oxidation resistant up to and in excess of about 930.degree. C. The composite material is comprised of a metal component which lends strength and elasticity to the structure, a fluoride salt component which provides oxidation protection to the metal but may also enhance the lubrication qualities of the composite.
Abstract:
A new coating composition, coated article and method are disclosed herein dealing with the preparation of coated surfaces which are useful, for example, in glass molding wherein a relatively lubricious, abrasion resistant surface is desired under conditions of high operating temperatures. The coating composition in its most basic aspect involves a dispersion of an aluminum phosphate and a very fine particle size pigment material together with other materials including novel dispersion stabilizing ingredients and a special water dispersible resinous film-modifying agent.
Abstract:
1. A GREASE COMPOSITION HAVING SUPERIOR SHEAR STABILITY, WATER-RESISTANCE AND EXTREME PRESSURE PROPERTIES, COMPRISING FROM ABOUT 65 TO 90 WEIGHT PERCENT OF LUBRICATING MINERAL IOL FROM ABOUT 35 TO 10 WEIGHT PERCENT OF A THICKENING SYSTEM MADE UP OF 25 TO 9 WEIGHT PERCENT OF FIBROUS ASBESTOS AND ABOUT 10 TO 1 WEIGHT PERCENT OF POLYMERIC COATIG AGENT HAVING RECURRING UNITS INCLUDED WITHIN THE STRUCTURES:
(1,2,2,3,4-PENTA(R)-1,2-DIHYDRO-QUINOLINYL-R)N
WHEREIN THE AVERAGE DEGREE OF POLYMERIZATION RANGES FROM 2 TO ABOUT 10, AND R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL RADICALS AND HYDROXYLATD ALKYL RADICALS, SAID ALKYL RADICALS CONTAINING FROM 1 TO 6 CARBON ATOMS.