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:
Jun. 05, 1990
Filed:
Sep. 22, 1989
Applicant:
Inventors:
Shigeru Yanagimoto, Fukushima, JP;
Ryoichi Kondo, Kanagawa, JP;
Assignee:
Showa Denko Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ; B22D / ;
U.S. Cl.
CPC ...
164475 ; 164472 ; 164490 ;
Abstract
In a method for continuous casting of an aluminum-lithium alloy through an open-ended mold for forming an ingot, wherein gas under pressure is brought into contact with a molten surface part of said ingot directly before solidification, the gas used consists of from 1 to 15 volume % of oxygen and balance of inert gas. The casting is stabilized and cast skin is improved by the use of said gas.