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:
Dec. 07, 1999
Filed:
Jun. 19, 1998
Neil Adrian Molloy, Adamstown Heights, AU;
Grant Caffrey, Vancouver, CA;
The Broken Hill Proprietary Company, Melbourne, AU;
Abstract
This invention is directed to a method and apparatus for thermal homogenization of molten metal in a heath of a electric arc furnace for steel production. The invention addresses the problem of lack of thermal homogenization by providing a lance which directs oxygen gas downwardly towards the surface of the bath and into the molten metal in a direction that diverges away from a direct line to a central region of the hearth through a horizontal divergence angle in the range of 10.degree. to 50.degree. thereby to enhance movement of the molten metal about the hearth and the direction of the gas is inclined downwardly to strike the nominal horizontal plane of the surface of the bath at an inclined angle in the range of 35.degree. to 50.degree. thereby to minimize splashing of the molten metal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile