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Information × Registration Number 0212U002834, 0110U000728 , R & D reports Title The development of new materials based on nanopowders for cleaning parts of railway transport popup.stage_title Head Timofeeva Larisa, Доктор технічних наук Registration Date 16-02-2012 Organization Ukrainian State Academy of Railway Transport popup.description2 Continuous expansion of the nomenclature of the constructional metal, nonmetallic and composite materials used in the industry and building, demands new technologies of their processing. The technology of processing of details a granular abrasive is characterized by ample opportunities in comparison with others methods of the abrasive processing. Some patterns of structurization of a material based on nanopowders of tungsten monocarbide are surveyed at hot pressing with direct transmission a current. The fine-grained structures from nanopowders of tungsten monocarbide are received. Nozzles received via a method of hot pressing with transmission an electric current at which inspissation is carried out during small time of endurance which prevents grain growth. As have shown experiments, optimum regimens are in enough narrow limits, in particular the temperature factor most defining from them 1700-1800 °С. The data presented in the report allow to assert that in the course of high-temperature sintering under a load the size of grain WC was enlarged a little, remaining basically, less than 1 microns. Thus in materials almost absent porosity. The developed samples of standard sizes nozzles for hydroabrasive and surface sandblasting based on tungsten carbide and the presented references concerning use and replacement nozzles Product Description popup.authors Абакумов Дмитро Володимирович Геворкян Едвін Спартакович Гуцаленко Юрій Григорович Мельник Ольга Михайлівна Тимофєєв Сергій Сергійович Федченко Ірина Іванівна popup.nrat_date 2020-04-02 Close