Production of aluminum master alloy rod

Details Production of aluminum master alloy rod Production of aluminum master alloy rod

1990-04-26

1991-10-15

Dean, R.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75678, 75684, 75685, 420552, C22B 2106

Patent

active

050571508

ABSTRACT:
A continuous process is described for the production of an aluminum master alloy, e.g. an Al-Ti-B grain refining rod, in which molten aluminum is continuously passed through a confined reaction zone. Particulate titanium and/or boron precursor compounds, e.g. salts, are continuously added to the molten aluminum in the reaction zone and the content of the reaction zone is continuously stirred to submerge the salts within the aluminum melt and form an alloy therewith. A mixture of formed molten alloy and entrained reaction products is continuously transferred from a lower region of the reaction zone into a refining zone, with reaction product slag being collected on the surface of the molten alloy in the refining zone. The molten alloy formed is continuously transferred via a transfer conduit from the refining zone to a casting station.

REFERENCES:
patent: 3272617 (1966-09-01), Fennell
patent: 3767382 (1973-10-01), Bruno et al.
patent: 3785807 (1974-01-01), Backerud
patent: 3857705 (1974-12-01), Miyasaka et al.
patent: 3961995 (1976-06-01), Alliot et al.
patent: 4298377 (1981-11-01), Szekely
patent: 4484731 (1984-11-01), Taniguchi

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