Technology of Melting an Invar in an Induction Furnace

Technology of Melting an Invar in an Induction Furnace

A process of melting a 32NKD superinvar alloy from industrial wastes in a 1100-kg FS (core-free) induction furnace is developed. The preparation of a charge, namely, fraction composition, oxidation, the content of harmful impurities, and a method of charging, is considered in detail to ensure the ma...

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Veröffentlicht in:Russian metallurgy Metally 2019-06, Vol.2019 (6), p.647-650
Hauptverfasser: Gertsyk, S. I., Smirnova, V. A.
Format: Artikel
Sprache:eng
Schlagworte:
Charge preparation
Chemistry and Materials Science
Crucibles
Electric induction furnaces
Ferrous alloys
Induction heating
Industrial wastes
Low expansion alloys
Materials Science
Melting
Metallic Materials
Oxidation
Resource Saving
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Zusammenfassung:A process of melting a 32NKD superinvar alloy from industrial wastes in a 1100-kg FS (core-free) induction furnace is developed. The preparation of a charge, namely, fraction composition, oxidation, the content of harmful impurities, and a method of charging, is considered in detail to ensure the maximum resistance of a crucible and to optimize melting. The methods of decreasing the height of the meniscus that forms on the melt surface because of the specific features of induction heating and the related features of slag formation are analyzed.
ISSN:0036-0295
1555-6255
1531-8648
DOI:10.1134/S0036029519060119