Сучасні магнітодинамічні технології для виготовлення безперервно литих зливків з алюмінієвих сплавів

• Date: 2024
• Main Authors: Нарівський , Анатолій Васильович, Поливода , Світлана Леонідівна, Ворон , Михайло Михайлович, Твердохвалов , В’ячеслав Олексійович, Семенко , Анастасія Юріївна, Сірий , Олександр Васильович
• Format: Article
• Language: Ukrainian
• Published: Physico-technological Institute of Metals and Alloys 2024
• Subjects: магнітодинамічне обладнання; безперервне лиття зливків; алюмінієві сплави; електромагнітні та вакуумні дії на метал
• Online Access: https://www.metalsandcasting.com/index.php/mcu/article/view/275
• Journal Title: Metal and Casting of Ukraine

Deformable aluminum alloys based on the Al-Mg system are the most widespread in comparison with alloys of other alloying systems. Now more than 90 % of the world volume of pressed products is made from such alloys. This is explained by their high manufacturability during pressure processing, which allows to obtain pressed products with a high-quality surface and a favorable combination of mechanical and corrosion properties. The constant growth of consumer demand for the quality of products, as well as the desire to reduce the costs of their production, have led in recent years to the appearance of high requirements for the properties of the main press blank – an ingot made by continuous casting. In the article, the authors describe innovative solutions and modern approaches to the production of continuously cast ingots from aluminum alloys, using the created magnetodynamic (MHD) technologies and equipment. It is shown that the use of magnetodynamic (MHD) technologies ensures high quality of ingots due to mixing in a vacuum and filtration of the melt, reducing the size of microinhomogeneities and reducing the concentration of gases and oxides in alloys. Thanks to the application of electromagnetic and vacuum influences, a uniform distribution of alloying elements in the structure of ingots is ensured, which significantly increases their mechanical properties. Methods of protecting alloys from oxidation during continuous casting are considered. The developed processes have significant technological potential, which should be applied in industry for the purpose of import substitution and increasing the competitiveness of metal products made of aluminum alloys, which are oriented to the modern market.