A method is developed for manufacturing briquettes based on fine ferroalloy screenings providing sufficient mechanical strength and suitability for transportation. A batch of briquettes is manufactured from ferroalloy screenings for steel deoxidation. Ferroalloy briquette composition is studied in a scanning electron microscope. It is shown that a briquette consists of fine ferroalloy particles and pure silicon bonded by sodium silicate with various additives. Ferroalloy briquettes are tested for medium-carbon steel deoxidation in a steel-pouring ladle. Silicon assimilation from ferroalloy briquettes is 65% on average.
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N. V. Fedorchenko et al., Rational Use of Ferroalloy Unconditioned and Fine Fractions. Theory and Practice, Izd. YuUrGU, Chelyabinsk (1998), pp. 152–165.
A. N. Makarov, D. V. Shaburov, V. I. Antonov, et al., Patent 2398029 RF, IPC C22B1/248, “Method for preparing briquettes from industrial fine ferroalloys,” subm. 12.27.2007, publ. 08.27.2007, Byull., No. 24 (2010).
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Translated from Metallurg, No. 1, pp. 56–59, January, 2015.
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Tokovoi, O.K., Khyakkinen, V.I., Zorin, A.I. et al. Manufacture, Study, and USE of Briquetted Ferroalloys for Steel Deoxidation. Metallurgist 59, 44–48 (2015). https://doi.org/10.1007/s11015-015-0058-9
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DOI: https://doi.org/10.1007/s11015-015-0058-9