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. 22, 2013
Filed:
Nov. 14, 2011
David R. Gildemeister, Murrysville, PA (US);
James L. Kirby, Mechanicsville, VA (US);
Ray T. Richter, Murrysville, PA (US);
Charles W. Shanko, Summerville, SC (US);
David R. Gildemeister, Murrysville, PA (US);
James L. Kirby, Mechanicsville, VA (US);
Ray T. Richter, Murrysville, PA (US);
Charles W. Shanko, Summerville, SC (US);
Alcoa Inc., Pittsburgh, PA (US);
Abstract
An apparatus for direct chill casting of metal having an open ended mold cavity formed by a casting surface, a refractory sleeve adapted to receive molten metal, a coolant delivery system for supplying coolant to chill the descending hot metal body, and a boron nitride ring mounted between the refractory sleeve and the peripheral wall of the mold cavity. A downspout may be used instead of a refractory sleeve having a flow control rod or floating baffle to control the amount of molten metal entering the mold cavity. A process for direct chill casting of a metal including continuously filling the cavity with molten metal and permitting the metal to move downwardly through the mold to form an ingot, and simultaneously chilling the ingot by spraying coolant on the ingot from the coolant delivery system.