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:
May. 23, 2023
Filed:
Aug. 19, 2019
Norsk Hydro Asa, Oslo, NO;
Arild Håkonsen, Sunndalsøra, NO;
Rune Ledal, Sunndalsøra, NO;
NORSK HYDRO ASA, Oslo, NO;
Abstract
The invention provides a casting equipment () for casting melt () into a cast product () comprising a supply reservoir () for supplying the melt (), a distribution reservoir (), a casting apparatus () having a melt inlet connected to the distribution reservoir () for producing the cast product (), a supply conduit () fluidly connecting the supply reservoir () and the distribution reservoir (), an electromagnetic pump () provided on the supply conduit () and operable to generate a force in the melt () in the supply conduit (), a level sensor () for measuring a level of the melt () in the distribution reservoir () and/or in the supply reservoir (), a controller operably connected to the pump () and the level sensor (), wherein the supply conduit () is sealed or sealable from a pressure of the atmosphere, wherein the controller is configured to control an operation of the pump () based on a level signal from the level sensor (), and wherein, at least during a steady-state casting operation, the casting equipment is configured such that the supply conduit () defines a flow path that has a point that is higher than a surface of the melt in the supply reservoir () and/or the distribution reservoir (), and the pump () is operated such that the metal level in the distribution reservoir () is at a predefined level such as to control a pressure of the melt () in the melt inlet of the casting apparatus ().