title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð¾Ð¹ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð´Ð»Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð¼ÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð², Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÐµÐ¼ÑÑ Ð² Ð°Ð´Ð´Ð¸ÑÐ¸Ð²Ð½ÑÑ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸ÑÑ
title: Ð½Ð°ÑÑÐ½ÑÐ¹ Ð´Ð¾ÐºÐ»Ð°Ð´
titleType: Subtitle
title: Development of plasma technology for the production of metal powders used in additive technologies
Creators: name: ÐÐ°Ð´ÑÑÐ¾Ð², ÐÑÑÐ»Ð°Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: ÐÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð¾ÑÐ¾ÑÐºÐ¸
ÐÐ»Ð°Ð·Ð¼Ð¾ÑÑÐ¾Ð½Ñ
Ð¿Ð»Ð°Ð·Ð¼Ð¾Ð¾Ð±ÑÐ°Ð·ÑÑÑÐ¸Ð¹ Ð³Ð°Ð·
Ð°Ð´Ð´Ð¸ÑÐ¸Ð²Ð½ÑÐµ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸
Ð´Ð¸ÑÐ¿ÐµÑÑÐ½Ð¾ÑÑÑ
plasma-forming gas
metal powder
additive technologies
dispersion

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description: The paper considers methods for obtaining fine metal powders intended for use in additive technologies. After analyzing the scientific and economic world base, a new method for producing metal powders by spraying a rotating billet with several alternating current plasma torches was proposed. This allows you to increase the productivity of products, thanks to additional sources of thermal energy, including Joule heating, which occurs in the molten billet, by passing an electric current, which also provides a skin effect. This allows you to achieve local melting of the material and by rotating the workpiece to obtain the desired fraction of granules. The best composition of the inert gas for filling the working space and cooling the molten metal was also calculated. The result of the research is a working model of the plant, which allows to obtain a fine metal powder with an effective dispersion and composition. Various mathematical models were created that describe the stages of the plant operation, such as: Gorenje plasma arc, molten metal billet and cooling of metal particles. These models were verified and used to configure the operating modes of the installation. At the end of the work, the final product was obtained in the form of metal particles, SE and BSE analysis was performed, which confirmed the presence of powders of the required dispersion and composition.