Abstract:
A resin composition which exhibits good sealability while keeping creep deformation to a minimum when brought into sliding contact with a mating member at a high contact pressure of over 10 MPa, and which will not damage a mating member made from an aluminum alloy while sliding in contact with lubricating oil. The resin composition is a pressure-resistant, sliding tetrafluoroethylene resin composition containing 100 parts by volume of a modified tetrafluoroethylene resin in the form of a copolymer of tetrafluoroethylene and partially modified tetrafluoroethylene, 5-40 parts by volume of carbon fiber, and 2-30 parts by volume of calcium sulfate whiskers having a Mohs hardness of 4 or less, and having, at 100° C., a maximum deformation rate in 24 hours, of 15% or less. A seal device to be brought into slide contact with an aluminum metal is molded from such a pressure-resistant, sliding tetrafluoroethylene resin composition.
Abstract:
Suggested are lubricant compositions comprising: (a) a low viscosity PAO; (b) an ester; (c) a Group III mineral base oil; (d) a high viscosity PAO; (e) an olefin copolymer; (f) an additive package imparting SAE J2360 performance; (g) a pour-point depressant; and, optionally (h) an antifoam agent; wherein the lubricant composition is a multiviscosity-grade lubricant having a SAE viscosity classification of 75W-110 and meets API Category GL-5 performance requirements
Abstract:
A lubricant for hot plastic working which is excellent in lubricity, suitability for feeding, and workability and exerts no adverse influence on the corrosion resistance of a product. The lubricant for hot plastic working has a composition which, besides a stabilizer, comprises 50-80 mass% iron oxide, 20-50 mass% sodium silicate, and 1-20 mass% calcium oxide in terms of anhydrous-state amount. In the lubricant, the content of each of zinc oxide, lead oxide, and copper oxide, which are impurities, and the total content of these are 5 mass% or lower. This lubricant is suitable for use in, e.g., lubricating a guide shoe in the perforation/rolling of a high-chromium steel.
Abstract:
The production of solid lubricant agglomerates by combining solid lubricant powder, an inorganic binder, other fillers if optionally desired, and a liquid to form a mixture, and driving off the liquid to form dry agglomerates which are subsequently classified by size or milled and classified by size to yield agglomerates of a desired size range. These agglomerates are then treated to stabilize the binder, thereby strengthening the binder and rendering it nondispersible in the liquid. The undesired size ranges can be readily recycled because the agglomerates with untreated binder can be reprocessed, thereby promoting high recovery rates.
Abstract:
A first treating agent for forming a protective coating which comprises water and, compounded therewith, an alkali silicate represented by the formula: M2O . nSiO2, wherein n represents a number of 2 to 9 and M represents at least one of Na, K, Li and NR4 where each R independently represents a hydrogen atom or an alkyl group a second treating agent comprising the first treating agent and a lubricating agent a metallic material having a protective coating formed by using the treating agent and a method for forming a protective coating which comprises using the treating agent. The second treating agent can form a coating film having excellent self-lubricating property. The treating agents can form a coating film having excellent anti-galling and rust preventive properties which is comparable or superior to those of a coating film formed through a chemical reaction of a metallic base material, by a simple and easy method wherein the treating agent is applied on the surface of a metallic material and then dried.
Abstract:
A lubricant coating disposed between a substrate and a counter surface comprises a reaction layer immediately adjacent the substrate. A bonding layer is immediately adjacent the reaction layer, with the bonding layer comprising a first composition. A low friction, lubricious layer is immediately adjacent the bonding layer, with the lubricious layer comprising a second composition that is different from the first composition.
Abstract:
A lubricant coating disposed between a substrate and a counter surface comprises a reaction layer immediately adjacent the substrate. A bonding layer is immediately adjacent the reaction layer, with the bonding layer comprising a first composition. A low friction, lubricious layer is immediately adjacent the bonding layer, with the lubricious layer comprising a second composition that is different from the first composition.
Abstract:
The invention concerns a composition for preparing metal products designed to be shaped by at least one mechanical process of plastic deformation such as wire drawing, rolling, calendering, forging, swaging and the like, without notable shrinkage of substance. The invention is characterised in that it comprises a film-forming binder, at least an additive reactive with the metal, at least a lubricating additive and at least an anticorrosive additive. The invention also concerns a method for preparing said metal products using the claimed composition.