Melting Packaged Iron(fe) Or Iron Of Specified Structure To Facilitate Melting (e.g., Shaped Bale Of Scrap, Etc.) Patents (Class 75/572)
  • Patent number: 8066797
    Abstract: The method of the present invention involves recycling or reprocessing small-sized metallic or non-metallic by-products by enclosing them in a binder prior to melting. The binder can be a steel drum or other suitable steel enclosure. Melting is then accomplished by a cupola.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: November 29, 2011
    Inventor: John Basich
  • Patent number: 7731778
    Abstract: A bale of ferrous scrap for use in a steel making process where the bale comprises a compacted volume of scrap with an external marginal layer surrounding a center portion of the bale and a package of elements formed from commingled flux being compacted into the center portion and encapsulated in the bale.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: June 8, 2010
    Assignee: Magnesium Technologies Corporation
    Inventor: Thomas H. Bieniosek
  • Patent number: 6743275
    Abstract: Ferrous metal briquettes made from ferrous metal particles and an alkaline metal silicate, for adding to ferrous melts to recycle the particles.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: June 1, 2004
    Assignee: Alternative Casting Technologies, LLC
    Inventor: Thomas A. Cobett
  • Patent number: 6585800
    Abstract: In a method for making molten metal, reduced metal which is produced in a direct reduction furnace is melted in a melting furnace located in the close vicinity of the direct reduction furnace to produce the molten metal. The method includes the steps of putting the reduced metal into a metallic container, and loading the container containing the reduced metal into the melting furnace. The method may further includes, before the step of loading the container containing the reduced metal into the melting furnace, a step of cooling the surface of the container so that the surface temperature of the container is 500° C. or less.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: July 1, 2003
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Hiroshi Sugitatsu, Hiroshi Uemura, Toshiyuki Okumura
  • Publication number: 20030019329
    Abstract: In a method for making molten metal, reduced metal which is produced in a direct reduction furnace is melted in a melting furnace located in the close vicinity of the direct reduction furnace to produce the molten metal. The method includes the steps of putting the reduced metal into a metallic container, and loading the container containing the reduced metal into the melting furnace. The method may further includes, before the step of loading the container containing the reduced metal into the melting furnace, a step of cooling the surface of the container so that the surface temperature of the container is 500° C. or less.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 30, 2003
    Applicant: Kabushiki Kaisha Kobe Sho (Kobe Steel, Ltd.)
    Inventors: Hiroshi Sugitatsu, Hiroshi Uemura, Toshiyuki Okumura
  • Patent number: 6471742
    Abstract: A method for producing an improved charging stock for use in further metallurgical processes including the steps of providing a source of molten metal of known composition, providing a source of solid particulate material of a known composition which is compatible with the molten metal, combining the molten metal source with the solid particulate material source to produce a combined stream and forming the combined stream into a plurality of uniformly sized metal billets for use in further metallurgical processes.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: October 29, 2002
    Inventor: Oscar G. Dam
  • Patent number: 6357099
    Abstract: A method of forming a metal feedstock from wasted metal products is disclosed. The method includes the steps of crushing the metal products into pieces; magnetically separating sheet-shaped ferrous scraps and ferrous cast blocks from the crushed pieces; placing the cast blocks between the sheet-shaped scraps to make a sandwich structure; and pressing the sandwich structure to form a metal feedstock.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: March 19, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroshi Takano, Tetsushi Yonekawa, Yoshihiro Ogawa, Takashi Okada
  • Patent number: 5738704
    Abstract: An improved charging stock for steel production which facilitates earlier and more uniform carbon oxidation, and increases the rate of oxygen transport in the melt, comprises and iron-carbon alloy having silicon therein and an oxide-containing material. The iron-carbon alloy preferably has a ratio of carbon to silicon in the range of approximately 4-40:1. The ratio of oxide-containing material surface area to the weight of the iron-carbon alloy is preferably maintained in the range of 5-100 m.sup.2 /ton.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: April 14, 1998
    Assignee: Intermet-Service and Company
    Inventors: Genrikh Alekseevich Dorofeev, Serafim Zakharovich Afonin, Anatolii Georgievich Sitnov
  • Patent number: 5500032
    Abstract: In a process for the continuous melting down of scrap metal, in particular of bales of scrap metal, which contain residual plastic materials, the scrap metal being fed to a melt-down reactor (1) and the heat required to melt this down being obtained by direct heating from below, using burners that are arranged close to the tapping point, the process is managed in the melt-down reactor (1) as a reducing process; part of the process gases is returned to the melt-down reactor (1) as combustion gas after utilization of the sensible heat and purification; the remaining portion is passed out as output gas. This makes it possible to operate without oversize gas purification systems when melting down scrap metal that contains plastic, and to utilize the pyrolysed substances that are contained in the working material to good effect.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: March 19, 1996
    Assignees: Voest-Alpine Industrieanlagenbau GmbH, Mercedes-Benz Aktiengesellschaft
    Inventors: Wolfgang Nieder, Manfred Winkler, Gerhard Perchtold, Leo Seirlehner, Herbert Kohler, Arwed Eberle