Abstract:
Release and lubricating composition for avoiding seizure between molten glass and metal molds for forming glass articles, for minimizing wear between mold sections and for improving the pack of glassware, comprising, a dispersion of graphite in a polyphenylene sulfide, molds having such composition coated thereon, and a method of applying the composition to molten glass contacting surfaces comprising dispersing the composition containing graphite with the polyphenylene sulfide in the form of small particles in a carrier, applying the dispersed composition to the glass contacting surface and then curing the coating at an elevated temperature, including curing resulting from hot molds during glassware production.
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 composition and method of preparation are herein described for molten release and parting compositions adaptable for use in glass-forming operations. The novel composition comprises an aqueous dispersion of a mixture of a solid lubricant, a water-soluble silicate binder, a setting agent, and a water-soluble phosphate. A preferred composition comprises a mixture of flake graphite, boron nitride, sodium silicate, zinc oxide and potassium phosphate tribasic.
Abstract:
Lubricant films are formed on solid substrates by application of a composition containing solid lubricant particles carried in a dispersion of colloidal silica in an acidified alcohol-water solution of the partial condensate of methyltrisilanol.
Abstract:
A composition and method is herein described for mold release and parting operations. The novel composition comprises a dispersion of a mixture of a solid lubricant, such as graphite or carbon, a carrier, a binder, and a s-triazinyl derivative. A preferred composition comprises graphite, aqueous carrier, sodium silicate and ammeline.
Abstract:
Composition for forming lubricant coating, particularly useful in processes for working of sheet metals, comprising a resin capable of forming a layer adhering to the surface, and an oil for forming an upper layer to enhance the lubricating properties on top of and/or partially distributed within the resin layer; and a method of applying both layers of the coating to the metal surface simultaneously from a single aqueous dispersion or emulsion composition. The coating has been found to greatly increase the ability of the metal sheet to withstand severe fabrication processes, such as deep-drawing, without tearing or galling, compared with ordinary lubricating oils or greases.
Abstract:
Reaction products of alkali-metal salts of dithiocarbamic acid, of N-C1 to C5 alkyl, and N,N''-C2 to C4 alkylenebisdithiocarbamic acids with aldehydes and ammonia or primary amines and diamines are new compounds which are useful as bactericides, fungicides, algicides, nematocides, and soil fumigants in industry and agriculture.
Abstract:
A composition for producing an antifriction structural material comprising a carborane-containing polymer binder and an inorganic heat resistant solid lubricant. The binder is a polyester, a polyamide, a polyimide, or a polyoxadiazole containing carborane units attached to the polymer chain thereof. A process for producing said antifriction structural material from said composition comprising subjecting the composition to compression moulding at temperatures of up to 400*C, followed by coking at temperatures ranging from 400* to 900*C. The antifriction material according to the present invention is intended for operation in dry-friction units within a wide temperature range.
Abstract:
THIS INVENTION RELATES TO A LUBRICANT FOR METAL WORKING, SUCH AS A FORGING, WHICH CONTAINS A MAJOR PORTION OF POLYBUTENE AND MINOR PORTIONS OF TIN OR LEAD SOAPS, A SOLID LUBRICANT, SUCH AS GRAPHITE, AND A DISPERSING AGENT. FOR HOT FORGING, IT IS PREFERRED TO DILUTE THE LUBRICANT WITH KEROSENE OR THE LIKE.
Abstract:
A NOVEL COATING COMPOSITION FOR DRY FILM LUBRICANT WHICH COMPRISES A SYNTHETC RESIN FRO PAINT CONTAINING DISPERSED THEREIN A MIXTURE OF AT LEAST ONE CONVENTIONAL LUBRICATING MATERIAL HAVING A PARTICLE SIZE OF UP TO 60 MICRONS, SUCH AS MOLYBDENUM DISULFIDE POWDER, GRAPHITE POWDER OR POLYTETRAFLUOROETHYLENE POWDER, AND A FINE FLUORINATED GRAPHITE POWDER HAVING A PARTCLE SIZE OF UP TO 60 MICRONS, THE PROPORTION OF SAID SYNTHETIC RESIN TO SAID MIXTURE BEING 90:10 TO 10:90, PEFERABLY 60:40 TO 40:60, BY WEIGHT AND THE PROPORTON OF THE CONVENTIONAL LUBRICATING MATERIAL TO THE FLUORINATED GRAPHITE POWDER BEING 99.5:0.5 TO 5:95, PREFERABLY 70:30 TO 30:70, BY WEIGHT. SAID COATING COMPOSITION HAS AN INCREASED CRITICAL PV VALUE AND SUBSTANTIALLY THE SAME FRICTION COEFFICIENT AS THAT OF A CONVENTIONAL ONE. THE DRY FILM OF THE COATING COMPOSITION ACTS AS A DURABLE, SOLID LUBRICANT.