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Information × Registration Number 0212U000675, 0111U005931 , R & D reports Title Development of recommendations for selection and optimization of material composition and production technology of rubbing couples of scraper conveyers. popup.stage_title Head Krasnopolsky Victor Mihajlovich, Registration Date 13-03-2012 Organization Ukrainian State Scientific and Engineering Center for technology and equipment, metals working, environmental protection and secondary resources utilization for metallurgy and machine-building "Energostal" popup.description2 The analysis of operation conditions for scraper conveyors at mines of Ukraine is made. It is shown that maximum production on conveyors of SP326 type is 1.6 mln. t. of coal for grade A (anthracite), and for standard grades of coal - 3.2 mln. t. Chemical composition of 25HGS2sr steel grade is optimized for carbon and alloying elements content, profile industrial party of pan sides of type SP190, SP205, SP245, 255D provided with appropriate level of mechanical properties and hardness (NV = 241-285; ?v = 15-845 N/mm2; ?t = 90-725 N/mm2; ? = 14-20%; ? = 38-55%) is manufactured. Ones be developed the offers to improve the reliability and durability of friction pairs of scraper conveyors which include optimization of chemical composition for friction pairs, increase of hardness, making of rigidity ratio for friction pairs in range 1-1, 10 as well as use of 22HGSRNM and 25HG2SRM steel grades for manufacture of sides and bottoms of pans and 27HG1NMFRA steel grade of electric slag remelting for connection links. Product Description popup.authors Азаркевич А.А. Барабаш А.В. Благіх Т.К. Ботштейн В.А. Восковець Ю.О. Дурасов А.В. Коваленко Л.В. Краснопольський В.М. Лебедєв О.Д. Рудюк О.С. Сольоний В.К. Сталінський Д.В. popup.nrat_date 2020-04-02 Close