Особливості подачі розплавів на основі Fe та Cu в машини безперервного лиття

• Date: 2023
• Main Authors: Верховлюк, А. М., Петровський*, Р. В., Сергієнко, Р. А., Бабич, В. M.
• Format: Article
• Language: Ukrainian
• Published: National Academy of Sciences of Ukraine, Physical-Technological Institute of Metals and Alloys of NAS of Ukraine 2023
• Subjects: чорні та кольорові сплави; залізо; мідь; установка; безперервне лиття; ливарні форми
• Online Access: https://plit-periodical.org.ua/index.php/plit/article/view/features-fe-and-cu-based-melt-supplies-continuous-casting
• Journal Title: Casting Processes

Physico-Technological Institute of Metals and Alloys of the National Academy of Seience of Ukraine (Kyiv, Ukraine)*TzDV «GAL-KAT» (Lviv, Ukraine) Received14.12.2021 UDK 621.74.047:669-154 Two schemes of installations are presented, which should be used both for continuous supply of high-temperature molten metals based on iron and for their intermittent metered supply to molds. The second design is most effectively adapted for the continuous supply of copper and its alloys. The basic units included in both constructions are a furnace, an induction heater, a reversible induction motor, a metal pipe for melt transportation and a quick-release reconfigurable unit for forming and supplying a flat melt flow - a horizontal slot nozzle. The designs of metal pipelines that are part of the devices also have similar elements. In addition, both designs of metal pipelines for the possibility of recirculation of the melt in the crucible are made according to the scheme of a closed hydraulic circuit. The hydraulic circuit includes a pressure pipe that provides injection of the melt into a horizontal slit nozzle and a drain pipe, which, in the above embodiments of the hydraulic circuit, has several functions. Due to the fact that, when installing the hydraulic circuit, the drain pipe is raised to a certain height relative to the horizontal axis of the slot nozzle, it supports in the process of distributing the melt pressure stabilization function in the horizontal slot nozzle. The metastatic pressure Pm, which is created by a column of molten metal of height H is calculated by the formula: Pm = pH, where p is the density of the liquid metal. In the construction of metal pipelines, the drain pipe is closed to the crucible by a discharge pipe, which is mounted in the side wall of the crucible. The first design uses a shortened system for transporting melts, so it is more suitable for casting high-temperature melts such as iron-carbon and alloy steels. The design features of the next installation include an extended flow system for transportation, making it more efficient for the supply of non-ferrous metals and alloys. In the present case, the supply of melt to the foundry machine is provided by a method in which the combination of operations of recirculation of the melt in the crucible and the creation of the required metastatic pressure.   References 1 Barekar N.S., Dhindaw B.K. Twin-Roll Casting of Aluminum Alloys – An Overview. Journal Materials and Manufacturing Processes. 2014. Vol. 29. Is. 6. P. 651–6612 Patent DE 3616115 (A1). Method and apparatus for governing the flow of liquid metal through a vessel’s pouring nozzle, 1987.3 Patent JP 2014008512 (A). Automatic Surface Pressure Load Slide Valve Apparatus, 2014.4 Patent CA 2969198 (A1). A Slide Metal Frame-Drive unit Coupling Position Switching Mechanism Fora Sliding Nozzle Appratus, 2016.5 Patent CA 2986347 (A1). Apparatus and Method of Manufacturing Metallic or Inorganic Fibers Having a Thickness in the Micron Range by Melt Spinning, 2017.6 Patent EP0586732 (A1). Apparatus and Method for Magnetically Confining Molten Metal, 1994.7 Патент України на винахід 124671. Спосіб і пристрій для подачі розплавів в ливарні форми з рухомими стінками, 2021. [Patent of Ukraine for the invention 124671.