Physico-chemical properties of fluxes and their technological parameters
Journal Title: International Science Journal of Engineering & Agriculture - Year 2022, Vol 1, Issue 5
Abstract
Experimental and literary data on the properties and functions of fluxes and slags used for conducting stable remelting processes in various electroslag technologies are summarized. A formula for calculating the heat released during electroslag remelting (ESP) is proposed. The density and melting points of various fluxes were studied. The problem of obtaining high-quality metal with specified physical and mechanical properties and service characteristics is one of the main tasks in modern world metallurgical production, on which progress in many branches of industry directly depends. There are a number of technological processes for obtaining high-quality metal - vacuum-induction remelting, vacuum-arc remelting, electron-beam remelting, which have their own advantages and disadvantages and certain technical limitations. They do not solve the problem in general. The consumption of fluxes (slags) based on CaF2, Al2O3, MgO, CaO, MnO, SiO, NaF, etc. in metallurgical production is growing rapidly. This is due to the creation and introduction into production of new methods of smelting high-quality steels and alloys, which have special requirements for the physical and chemical properties of metallurgical fluxes. There are several general functions that slag performs in electroslag processes. This is primarily an energy-converting function. Slag is a section of an electrical circuit with high resistance, where electrical energy is converted into thermal energy. In addition, it performs a heat transfer function, which depends on the energy efficiency of the process. This efficiency is higher, the more fully and intensively the slag transfers the heat of the metal. Slag is an integral component of every process (EМS) of electroslag technologies, surfacing, casting, etc. The efficiency and productivity of processes depends on its properties, which are determined mainly by the chemical composition of the flux components used.
Authors and Affiliations
Ivan Rybalko, Oleksandr Saychuk, Andrii Zakharov
Keywords
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- EP ID EP711753
- DOI 10.46299/j.isjea.20220105.09
- Views 63
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