Abstract:
A solid lubricant and composition useful for lubricating the flanges of locomotive wheels, railcar wheels, rail track and in applications where it is desirable to reduce friction when metal contacts metal. The solid lubricant having from about twenty-five percent to about seventy percent by volume of a polymeric carrier, about five to seventy-five percent by volume of organic and inorganic extreme pressure additives, about zero to twenty percent by volume synthetic extreme pressure anti-wear liquid oil, and about zero to one percent by volume optical brightener.
Abstract:
A powdery mold-releasing lubricant according to the present invention uses a powdery mixture of a powdery organic material, which is evaporated or decomposed by heating to generate a gas, and a powdery inorganic material. A gas-solid mixed layer formed with the gas generated from the powdery mixture and the powdery inorganic material is used as a heat-insulating boundary layer. The powdery mold-releasing lubricant is inexpensive and has a superior mold lubricity.
Abstract:
A metal material subjected to a treatment for seizure prevention is provided. The metal material includes a metal base material and a film formed thereon, the film being composed of a carbodiimide group-containing resin obtained from an aromatic polyisocyanate or of a mixture of said carbodiimide group-containing resin and a lubricant. A method for producing a metal material subjected to a treatment for seizure prevention is also provided. The method includes coating, on a metal base material, a carbodiimide group-containing resin obtained from an aromatic polyisocyanate or a mixture of said carbodiimide group-containing resin and a lubricant, and then subjecting the coated metal base material to a heat treatment at a temperature of 120° C. or higher.
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:
A stainless steel wire is plated with nickel (Ni) to a thickness of from not less than 1 .mu.m to not more than 5 .mu.m. An inorganic salt coat film mainly composed of at least one of potassium sulfate and borax (borate) and free from fluorine (F) or chlorine (Cl) is then deposited on the nickel (Ni) plate 2 as the substrate. The steel wire is then drawn to a reduction of area of not less than 60% to adjust the surface roughness thereof to a range of from 0.80 to 12.5 .mu.mRz, preferably from 1.0 to 10.0 .mu.mRz.
Abstract:
Disclosed are grease compositions containing a liquid fluorinated polymer and a thickening agent containing hexagonal lattice boron nitride powder having a bimodal particle size distribution as well as grease compositions containing a liquid fluorinated polymer and a thickening agent containing hexagonal lattice boron nitride powder and a solid fluorinated polymer.
Abstract:
A low friction valve train actuating at least one valve in an internal combustion engine includes a cam shaft having at least one cam, a tappet contacting the cam and valve, the cam and valve having outer surfaces with an open porosity, a solid film lubricant impregnated and anchored in the open porosity, the solid film lubricant is stable to temperatures at about 700.degree. F. to retain a low coefficient of friction in an oil starved environment.
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 method for lubricating a ceramic bearing surface which comprises applying a cesium-containing compound selected from the group consisting of Cs.sub.2 MoO.sub.4, Cs.sub.2 SO.sub.4, Cs.sub.2 WO.sub.4, Cs.sub.2 WOS.sub.3, Cs.sub.2 MoOS.sub.3 and CsOH, to the bearing surface and heating the thus-coated bearing surface to a temperature of about 300.degree. C. or greater. Alternatively, the cesium-containing compound may be applied in admixture with a lower alkali metal silicate. This method is particularly useful for lubricating the bearings in expendable, high temperature turbine engines, such as those used in expendable missiles.
Abstract translation:一种用于润滑陶瓷轴承表面的方法,其包括将选自Cs 2 MoO 4,Cs 2 SO 4,Cs 2 WO 4,Cs 2 WOS 3,Cs 2 MoO 3和CsOH的含铯化合物施加到承载表面,并将如此涂覆的轴承表面加热至 约300℃以上。 或者,含铯化合物可以与下部碱金属硅酸盐混合使用。 这种方法对于在消耗性高温涡轮发动机(例如消耗导弹中使用的那些)中的轴承的润滑特别有用。
Abstract:
A mandrel lubricant for use in the production of seamless tubes. The mandrel lubricant composed of graphite, clay minerals from the smectite class, a polysaccharide and optionally a surfactant. The coating of the mandrels that have passed through a cooling bath takes place in the form of an aqueous dispersion.