Abstract:
A part is made of a material comprising less than 90% by weight of a polymer selected from the group consisting of polytetrafluoroethylene, polyurethane, nitrile, fluoroelastomer, and polyphenylene sulfide; and more than 10% by weight of another material, comprising about 15% to 60% by volume of grains of titanium carbide dispersed through a metal matrix.
Abstract:
A thread sealing and lubricating composition which can be employed at elevated temperatures without carburization of stainless steel fittings is disclosed. The composition contains 8-25% finely divided copper flakes, 5-20% finely divided aluminum particles, and 4-15% non-metallic, non-carbon powder suspended in a petroleum vehicle. The preferred composition contains 10% copper flakes, 5% aluminum powder, 5% non-metallic powder and 80% viscous petroleum vehicle.
Abstract:
An antifriction paste containing epoxy resin, molybdenum disulphide, graphite, aluminum, copper, alumosilicate and polyethylenepolyamine, the components being used in the following proportions (in parts by weight):epoxy resin: 40-80molybdenum disulphide: 15-30graphite: 10-15aluminum: 5-10copper: 5-10alumosilicate: 8-15polyethylenepolyamine: 5-10.The antifriction paste may also contain a solvent for the epoxy resin in an amount from 5 to 30 parts by weight. This paste is suitable for both small-and large-size friction assemblies. On the basis of this paste a solid lubricating coating with high antifriction performance is produced. Thus, a coefficient of sliding friction f.sub.fr. at a sliding speed V=0.06 m/s at a load P=10 kgf/cm.sup.2 is 0.2; linear wear rate I.sub.h under the same conditions is 1.0.10.sup.-9, and service life is as high as 500 km.