Abstract:
A resin composition for a sliding part comprising 5 to 45% by volume of a carbon fiber, 1 to 25 by volume of a metal powder and a remaining amount of a melt-processable fluorine-containing resin. A molded article made of the composition has a low friction coefficient having a narrow fluctuation range and has an excellent abrasion resistance to a soft metal.
Abstract:
The present invention provides lubricant compositions for the powder metallurgical field. The lubricant compositions contain a solid phase lubricant such as graphite, molybdenum disulfide, and polytetrafluoroethylene in combination with a liquid phase lubricant that is a binder for the solid phase lubricant. The binder can be chosen from various classes of compounds including polyethylene glycols, polyethylene glycol esters, partial esters of C.sub.3-6 polyhydric alcohols, polyvinyl esters, and polyvinyl pyrrolidones. The binder is solubilized in an organic solvent.
Abstract:
A lubricant composition useful for hot plastic working of metal material comprises 100 parts by weight of graphite particles and 2 to 100 parts by weight of particles of at least one metal oxide selected from oxides of Sn, Pb, Zn, Ca, Cu and Al and having an average size of 0.01 to 20.0 .mu.m.
Abstract:
A method for treating the phosphate sludge waste from phosphate conversion baths used in the metal forming and metal working industry is described whereby the phosphate sludge is completely converted into a lubricant additive which can be used in lubricant formulations for the metal forming and metal working industry as well as general purpose lubricants. By operation of this process, waste treatment and waste disposal problems associated with the phosphate sludge are essentially eliminated. Various dry-soap lubricant formulations, warm forming lubricant formulations, non-reactive lubricant formulations, and metal precoat formulations containing the recovered or recycled phosphate sludge additive are described. The lime normally contained in many of these lubricant formulations can be significantly reduced or essentially eliminated by using the recovered phosphate sludge additive of this invention, thereby resulting in improved lubricant formulations. The recovered phosphate sludge is especially useful as an Extreme Pressure Additive.
Abstract:
Thin impermeable, corrosion-resistant, durable, dry lubricant coatings are provided as well as coated products and methods for the production thereof. The coatings comprise solutions of sulfur-containing metallic compounds and fluorocarbon polymers dissolved in mineral oil solvents and are applied to surfaces of substrates such as metallic surfaces.
Abstract:
A novel lubrication blend useful per se as a lubricant or as an additive to form a novel lubricant composition. The lubrication blend consists essentially of a mixture of: (1) at least one complex sulfide of antimony, represented by the formula:Sb.sub.x S.sub.ywherein, x is a number in the range from about 1.7 to about 2.3, and y is a number in the range from about 3.6 to about 4.4, (2) at least one antimony oxide, and (3) at least one lamellar crystalline solid lubricant.
Abstract:
A sliding material used under a boundary lubricating conditions or mixed lubricating condition, and having improved, wear-resistance, low-friction property, and seizure-resistance, and consisting of (a) 10 to less than 69% of polyimide and/or polyamide-imide, from more than 30 to 68% of graphite, and, 1 to less than 30% of polytetrafluroethylene, MoS.sub.2, Pb, and/or BN, or (b) 20 to 90% of polyimide and/or polyamide-imide, and from 0.5 to 20% clay, mullite, silica, and/or alumina, and at least 5% and balance of graphite.
Abstract:
Reciprocating engine parts which involve substantially continuous frictional contact are coated with a solid film lubricant having excellent wear characteristics and adhesion. The parts in question are pistons, and the area to which the wear resistant solid lubricant film is bonded is the piston skirt--i.e., all or a portion of the area below the piston rings. The lubricant film is composed of a polyimide of 2,2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane ("4-BDAF") and an aromatic tetracarboxylic acid (or dianhydride or ester thereof) containing from 25 to 125 parts by weight of fluorinated carbon per 100 parts by weight of the polyimide resin ("phr"), and preferably about 30 to about 100 phr of the fluorinated carbon.
Abstract:
A lubricant composition is disclosed which is environmentally acceptable when used with hot forging of aluminum workpieces. Said lubricant comprises a metal soap composition containing no lead plus amounts of polybutene, graphite, thickening agent, mineral oil and, optionally, aliphatic solvent.
Abstract:
A composition for bullet lubrication which comprises an admixture of petroleum and silicone oil metallic soap greases, molybdenum disulfide, graphite, and beeswax.