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:
Nov. 17, 2020
Filed:
Oct. 02, 2018
Applicant:
Novelis Inc., Atlanta, GA (US);
Inventors:
Samuel R. Wagstaff, Marietta, GA (US);
Robert B. Wagstaff, Greenacres, WA (US);
Assignee:
Novelis Inc., Atlanta, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D 37/00 (2006.01); B22D 11/18 (2006.01); B22D 41/50 (2006.01); B22D 46/00 (2006.01); B22D 21/04 (2006.01); B22D 27/02 (2006.01); C22C 21/00 (2006.01); B22D 11/103 (2006.01);
U.S. Cl.
CPC ...
B22D 37/00 (2013.01); B22D 11/103 (2013.01); B22D 11/18 (2013.01); B22D 21/04 (2013.01); B22D 27/02 (2013.01); B22D 41/507 (2013.01); B22D 46/00 (2013.01); C22C 21/00 (2013.01);
Abstract
Techniques are disclosed for reducing macrosegregation in cast metals. Techniques include providing an eductor nozzle capable of increasing mixing in the fluid region of an ingot being cast. Techniques also include providing a non-contacting flow control device to mix and/or apply pressure to the molten metal that is being introduced to the mold cavity. The non-contacting flow control device can be permanent magnet or electromagnet based. Techniques additionally can include actively cooling and mixing the molten metal before introducing the molten metal to the mold cavity.