2020 №02 (01) DOI of Article
2020 №02 (03)

Electrometallurgy Today 2020 #02
SEM, 2020, #2, 10-17 pages

Modern sensors of liquid metal level for ESR in a short collar mould

V.L. Petrenko1, G.P. Stovpchenko2, V.А. Tkachenko1, D.V. Kolomiets1, L.B. Medovar1
1E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua
2Engineering company PC «ELMET-ROLL». P.O. Box 259, 03150, Kyiv, Ukraine. E-mail: office@elmet-roll.com.ua

Possibilities and limitations of existing types of level sensors for detecting the interface between metal and slag pools at electroslag remelting of ingots of different sizes in a short collar mold with ingot withdrawing are presented. The built-in type induction sensor of proprietary design, allowing measurement of the location of the slag-metal boundary with high precision has been developed and tested. The use of the signal of DUI-20 level sensor in the ESR control system makes it possible to operate a stable technological process in the automatic mode and to produce solid, hollow and surfaced electroslag ingots of the highest quality in short collar (of constant cross-section, T-shape and current supplying) moulds. Ref. 23, Fig. 3.
Keywords: metal level sensor; slag-metal interface; electroslag remelting; short collar mould; control system

Received 02.04.2020


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