Community Research and Development Information Service - CORDIS


Under the two-year AMSAS pilot project a continuous system for analysing molten steel at the converter was developed, built and tested. The wall of a converter is provided below bath level with a narrow duct through which a high power laser beam is focused. Discharge of molten metal is prevented by injected hot argon. When the laser beam impinges on the metal a hot plasma is created whose light radiation is registered. From this radiation, chemical composition can be determined. The specific task of the pilot facility is to determine carbon content with the aid of the spectal line at 193.1 nm. During start-up a number of thermal stress related irregularities occurred which were completely eliminated by improving the cooling system. As a result of the pilot project a system is thus available which is capable of determining carbon levels in the converter on-line. This represents an important step towards optimal control of the converter process.

Additional information

Authors: SCHUBERT K H, Krupp Stahl AG, Bochum (DE);CARLHOFF C, Krupp Stahl AG, Bochum (DE)
Bibliographic Reference: EUR 15184 DE (1995) 56 pp., FS, ECU 8.50
Availability: (2)
ISBN: ISBN 92-826-9519-0
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