Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/33457
Title: Особенности компактирования в пресс-формах композиций на основе углерода и вольфрама
Other Titles: Features of compaction in the press-dies compositions on the basis carbon and tungsten
Authors: Самодурова, М. Н.
Барков, Л. А.
Иванов, В. А.
Шеркунов, В. Г.
Issue Date: 2014
Publisher: Издательство Уральского университета
Citation: Особенности компактирования в пресс-формах композиций на основе углерода и вольфрама / М. Н. Самодурова, Л. А. Барков, В. А. Иванов [и др.] // Инновационные технологии в металлургии и машиностроении : материалы международной молодежной научно-практической конференции «Инновационные технологии в металлургии и машиностроении», посвященной памяти чл.-корр. РАН, почетного доктора УрФУ В. Л. Колмогорова, [г. Екатеринбург, 26-30 ноября 2013 г.]. — Екатеринбург : Издательство Уральского университета, 2014. — С. 441-451.
Abstract: This paper presents an analysis process based on the properties of the powders of carbon and tungsten, and methods for producing semi-finished products of them. It was revealed that the most common and effective way is to compaction of powder compositions of tungsten and carbon in press-dies. Carbon and tungsten powders have a several special properties that significantly affect the quality of semi-finished and require special organization of the production cycle. Thus the self-diffusion coefficients of the low carbon and tungsten, a high elastic modulus require plasticizers and binders, for acceptable strength of semifinished after compaction . High adsorptive capacity of the powdered compositions, is the cause of low pour density and a large amount of gases which must be removed from the press-die cavity during the compaction. Speeds punch during compaction tungsten limited 2 – 2.5 mm/s, the preform obtained by compacting high speeds have defects such as cracks. For continuous preparations of graphite requires prolonged high-temperature processing. Powder compacting after harvesting have significant porosity and require further thermomechanical processing.
URI: http://hdl.handle.net/10995/33457
Conference name: 7-я международная молодежная научно-практическая конференция «Инновационные технологии в металлургии и машиностроении»
Conference date: 26.11.2013-30.11.2013
ISBN: 978-5-7996-0764-7
Origin: Инновационные технологии в металлургии и машиностроении. — Екатеринбург, 2014.
Appears in Collections:Конференции, семинары

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