Means for adding materials to a flowing stream of molten metal

Details Means for adding materials to a flowing stream of molten metal Means for adding materials to a flowing stream of molten metal

C - Chemistry, Metallurgy

22

B

39/107, 53/90

C22B 9/10 (2006.01) B22D 11/16 (2006.01) C21C 7/00 (2006.01) F27D 3/16 (2006.01)

Patent

CA 1112457

ABSTRACT OF THE DISCLOSURE The specification describes a method and apparatus for adding particulate material to a stream of flowing molten metal by blowing the material into the stream with a flow of gas under pressure. The apparatus comprises chamber means which provide a path for the gas under pressure directed toward a point in the path of the stream and reservoir means for the material. The apparatus further comprises a flow path from the reservoir to the chamber means, a gate in the flow path, means for opening and shutting the gate, sensing means responsive to the presence and absence of the flowing metal stream, and a connection between the sensing means and the means for opening and shutting the gate. The gate is opened in response to the presence of the flowing metal stream and closed in response to the absence of the flowing metal stream.

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