Abstract:
Metal working operations, especially drawing, are facilitated by applying to the metal a composition which provides lubricity thereto and which melts within the range of about 30.degree.-100.degree. C. The composition comprises at least one neutral ester, and preferably a mixture of esters, prepared from polyalkylene glycols and saturated aliphatic alcohols having at least about 10 carbon atoms, and C.sub.12 -.sub.25 aliphatic monocarboxylic acids and C.sub.4 -.sub.20 aliphatic polycarboxylic acids. The preferred ester mixtures are prepared from polyethylene glycols, C.sub.14 -.sub.20 predominantly straight chain alkanols, stearic acid and adipic, azelaic or sebacic acid. Optional ingredients include phosphorus acid salts and anti-oxidants. The composition may be applied in liquid form and solidifies on cooling to normal ambient and storage temperatures.
Abstract:
Method and composition for applying a coating to a metallic surface, the surface being immersed in an acidic aqueous coating composition comprising dispersed solid particles of an organic polymeric resinous coating-forming material and an oxidizing agent, wherein the weight or thickness of the coating formed on the surface is a function of the time the surface is immersed in the composition.
Abstract:
A grease compound of a base oil, a thickener, and minor synergistic amounts of the extreme pressure agent combination of zinc dialkyldithiophosphate, the reaction product of butyl acid phosphate and dodecyl aniline, and Bis(.beta.-chlorophenethyl) disulfide.
Abstract:
A metallic surface is coated with a polymeric resinous coating by immersing the surface in an acidic aqueous coating composition comprising polymeric resinous coating-forming material and an oxidizing agent. The corrosion resistance and/or the surface appearance of the resinous coating is modified by rinsing the coating with an aqueous rinse solution containing hexavalent chromium or an aqueous rinse solution containing hexavalent chromium and reduced forms of chromium.
Abstract:
A lubricant composition comprising water, graphite, an organic thickener, sodium molybdate, and sodium pentaborate. Other additives are sodium bicarbonate, ethylene glycol, or mica. The composition is effective in the hot forging of metals, is virtually non-flammable, and generates very little atmospheric pollution during use.
Abstract:
A method of cold forming ferrous metals is disclosed employing as a cold-forming lubricant a dry solid coating comprising a film of a chlorine-containing, film-forming polymer and a destabilizing agent applied to the surface of a ferrous metal workpiece, which surface is free from other coatings or surface treatment, said coating being applied as a liquid composition and to particular coating compositions.
Abstract:
Acidic aqueous coating compositions containing an organic coating-forming material form coatings on metallic surfaces which are immersed therein. The thickness or weight of the coating formed by the coating composition is a function of the time the metallic surface is immersed in the composition. The resulting coatings have adhesion properties thereby providing an adherent base to which other coatings, for example, paint primers and/or final finish paints can be applied.
Abstract:
Compositions containing lamellar micelles and which exhibit retro-viscous property at noncryogenic temperatures are prepared by mixing 4-15 percent of a surfactant (preferably an alkaryl sulfonate having an average equivalent weight of 350-525), 30-70 percent of a liquid hydrocarbon, 15-66 percent of water and optionally up to 20 percent of a cosurfactant, preferably an alcohol containing 1-20 carbon atoms, and/or electrolyte (preferably inorganic salt). The micelles have an axial ratio of at least 3.5 and preferably the composition has a viscosity of at least 75 cp. at a shear rate of 10 sec.sup.- .sup.1 at 23.degree.C. The composition is substantially optically clear, phase stable, birefringent, and the flow properties are such that substantially large increases in flow rate, e.g. 20-fold, can be realized at very small increases in pressure drop, e.g. 5 percent. Uses for the compositions include stimulation of wells (e.g. fracturing fluids), drilling fluids, carrier fluids in pipelines, fluidics, cutting oils, and similar applications.
Abstract:
A composite material is described which will provide low friction surfaces for materials in rolling or sliding contact and is self-lubricating and oxidation resistant up to and in excess of about 930.degree.C. The composite is comprised of a metal component which lends strength and elasticity to the structure, a fluoride salt component which provides lubrication and, lastly, a glass component which not only provides oxidation protection to the metal but may also enhance the lubrication qualities of the composite.
Abstract:
A tire and wheel assembly having a lubricant to enable it to be operated in a deflated condition without destructive heating in which one or more ingredients of the lubricant composition are enclosed in an enclosing means, the other ingredient or ingredients of the composition being placed in the inflation chamber of the assembly. The enclosing means release the first ingredient or ingredients into the inflation chamber, upon loss of inflation pressure, to form the composition.