A new method of manufacturing products from polymeric composite materials.

The method of making products from composite materials can be used in the production and manufacture of products from already known or new composite materials used in the oil and gas industry. The products manufacturing is carried out by pressing in a closed mold with application of ultrasonic influence and amplitude modulation. As a result of ultrasonic action and the imposition of low-frequency amplitude modulation on the pressed material, the tensile strength increased by an average of 5-6% and the elasticity module - by 12-14%. In this case, the relative elongation is reduced by 14-20%, and the wear rate is 12-14%. The new method allows significantly to increase the work resource and the slide bearings reliability used for making friction pairs of pumps and compressors of petrochemical industry. [ABSTRACT FROM AUTHOR]