Metallurgy, Vol. 58 No. 3-4, 2019.
Original scientific paper
The effect of ruhrstahl and hereaeus (RH) operation on the mixing of molten steel
Y. Xu
; School of Material Engineering, Lanzhou Institute of Technology, Gansu, China
S. Li
; Key Laboratory of metallurgical engineering, University of Science and Technology Liaoning, Anshan, Liaoning, China
J. Zhou
; School of Material Engineering, Lanzhou Institute of Technology, Gansu, China
L. Yan
; State key laboratory of metal materials for Marine equipment and their application, Anshan Iron and Steel Group Corporation, Anshan, China
X. Ai
; Key Laboratory of metallurgical engineering, University of Science and Technology Liaoning, Anshan, Liaoning, China; State key laboratory of metal materials for Marine equipment and their application, Anshan Iron and Steel Group Corporation, Anshan, China
Abstract
The flow and mixing characteristics of molten steel in the RH refining process were studied. A hydraulic simulation system with the geometric similarity ratio of 1:4 was built with 210 tons of RH as the prototype. The influence of different locations of tracers and different operation processes on the mixing of molten steel in ladle was studied. The results show that the RH operation should adopt a large air blowing amount, the insertion depth of the impregnated tube should not be less than 560 mm, and the liquid level of the vacuum chamber should be kept small.
Keywords
steel, RH; refining; mixing; water model
Hrčak ID:
218348
URI
Publication date:
1.7.2019.
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