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Information × Registration Number 0213U000825, 0109U000564 , R & D reports Title The Improvement of existing products and creation of new one out of superhard materials for instrumental and constructional appointments: the structure modification of the created diamond- hard-alloy material brand АВКМ for diamond crown, holereamer, dressing tool; a creation and a tribotechnical tests of the friction units with cBN; improvement of the solders and processes of the soldering, fabrication and test of cutters from cBN and diamond plates, which were producted by syntheses from a gas phase popup.stage_title Head Naidich Yuri Vladimirovich, Registration Date 29-03-2013 Organization I.N.Frantsevich Institute for Probmens of Materials Sciences Ukrainian Academy of Science popup.description2 The objects of research are superhard materials and composites on their base of instrumental and (at first time) of construction setting. Purpose of work are: improvement of diamond-superhard material (of AVKM type) for fitting-out of crown bits, reamers, dressers; making of chisels with the CVD diamonds by the soldering method; creation from superhard materials (cBN) by the soldering method of the wares for construction purpose (axle, slidewaies, including cylindrical). Optimization of composition for a working layer of crown bits (a concentration and quality of diamonds, method of their fixing in a matrix) in terms which imitate work of crown bits. Test batch of crown bits of BA3 and reamers of 76 mm is made. Conducted their industrial tests at geological survey works confirmed high quality of new crown bits by comparison to the imported crowns of "Terekalmaz" fabrication and serial crowns of BC 20. Diamond dressers from AVKM, that have workings descriptions in 2,5 time higher standard, are made. Adhesive joint technology of separate, limited in size, elements from cubic nitride of boron and the whole wares of the construction purpose is developed: axle by with diameter to 10 mm; practically not worn down cylindrical slidewaies type axle|/ring with the surface of friction of cBN/cBN. Beginning of development of firsttime direction for modern material science - the use of superhard matters (cubic nitride of boron) as construction material. Tested cylindrical slidewaies from cBN are characterized by the especially low ratio of friction (0,04) and wear (0,64 mgs/km). Product Description popup.authors Євдокімов В.О. Ємцов В.М. Адамовський А.А. Бєлобородов І.І. Бугайов О.О Варченко В.Т. Зюкін М.С. Коноваленко Т.Б. Костенко О.Д. Уманський В.П. popup.nrat_date 2020-04-02 Close