TECHNOLOGY FOR MAKING OF 12Х18Н10Т ALLOY IN INDUCTION-ARC FURNACES

A technology for making structural cryogenic steel 12Х18Н10Т from industrial waste has been developed. For it an induction plant was used which consists of two FS-series induction-arc furnaces. Problems of furnace charge preparation were considered: the fractional composition, oxidation, content of harmful impurities and a charging way. It made possible to ensure pot resistance and to decrease the melting period. Recommendations to decrease meniscus height on the melt surface are given.

USE OF THERMAL IMAGING TESTS IN THE STEEL INDUSTRY

The paper presents the possibilities and selected examples of practical use of the thermal imaging technique in the metallurgical industry as a non-invasive testing method for measuring temperature distribution on the surface of the examined object. This method can be used in all stages of steel production, from charge preparation to finished product, as well as diagnostics of technical devices. The paper emphasises the non-invasive nature of the examination, which does not disturb the production cycle.