The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 1991
Filed:
Apr. 26, 1990
Martin R Reeve, Kingston, CA;
Pervez J Bamji, Kingston, CA;
Barrie Chamberlain, Kingston, CA;
John Sulzer, Kingston, CA;
Alcan International Limited, Montreal, CA;
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.