Спечені тверді сплави марок ВК6 та ВК8, отримані різними методами переробки техногенної сировини

Abstract

Results are given of all-round studies of physico-mechanical properties and structure of recovered sintered hard alloys of WC-6Co and WC-8Co grades produced by different manufacturers with the use of zinc («Karma», Svetlovodsk, «Tekhnokor», Kharkov) and thermochemical carbon black-free («Alcon-Tverdosplav, Kiev» reprocessing procedures. It has been found that the stress intensity factor, hardness, bending and compression strength limits essentially depend on the method of recovering mixtures from technogenic raw materials as well as on additional reprocessing operations.