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Title: Molten metal injector system and method

Abstract

Disclosed is a molten metal injector system including a holder furnace, a casting mold supported above the holder furnace, and a molten metal injector supported from a bottom side of the mold. The holder furnace contains a supply of molten metal having a metal oxide film surface. The bottom side of the mold faces the holder furnace. The mold defines a mold cavity for receiving the molten metal from the holder furnace. The injector projects into the holder furnace and is in fluid communication with the mold cavity. The injector includes a piston positioned within a piston cavity defined by a cylinder for pumping the molten metal upward from the holder furnace and injecting the molten metal into the mold cavity under pressure. The piston and cylinder are at least partially submerged in the molten metal when the holder furnace contains the molten metal. The cylinder further includes a molten metal intake for receiving the molten metal into the piston cavity. The molten metal intake is located below the metal oxide film surface of the molten metal when the holder furnace contains the molten metal. A method of injecting molten metal into a mold cavity of a casting mold ismore » also disclosed.« less

Inventors:
 [1];  [2];  [3];  [4]
  1. (Murrysville, PA)
  2. (Apollo, PA)
  3. (Morin Heights, CA)
  4. (Riviere-Beaudette, CA)
Issue Date:
OSTI Identifier:
875132
Patent Number(s):
6540008
Application Number:
09/609997
Assignee:
Alcoa Inc. (Pittsburgh, PA) OSTI
DOE Contract Number:  
86X-SU545C
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
molten; metal; injector; method; disclosed; including; holder; furnace; casting; mold; supported; bottom; contains; supply; oxide; film; surface; defines; cavity; receiving; projects; fluid; communication; piston; positioned; defined; cylinder; pumping; upward; injecting; pressure; partially; submerged; intake; located; below; metal oxide; molten metal; fluid communication; oxide film; /164/

Citation Formats

Meyer, Thomas N., Kinosz, Michael J., Bigler, Nicolas, and Arnaud, Guy. Molten metal injector system and method. United States: N. p., 2003. Web.
Meyer, Thomas N., Kinosz, Michael J., Bigler, Nicolas, & Arnaud, Guy. Molten metal injector system and method. United States.
Meyer, Thomas N., Kinosz, Michael J., Bigler, Nicolas, and Arnaud, Guy. Tue . "Molten metal injector system and method". United States. https://www.osti.gov/servlets/purl/875132.
@article{osti_875132,
title = {Molten metal injector system and method},
author = {Meyer, Thomas N. and Kinosz, Michael J. and Bigler, Nicolas and Arnaud, Guy},
abstractNote = {Disclosed is a molten metal injector system including a holder furnace, a casting mold supported above the holder furnace, and a molten metal injector supported from a bottom side of the mold. The holder furnace contains a supply of molten metal having a metal oxide film surface. The bottom side of the mold faces the holder furnace. The mold defines a mold cavity for receiving the molten metal from the holder furnace. The injector projects into the holder furnace and is in fluid communication with the mold cavity. The injector includes a piston positioned within a piston cavity defined by a cylinder for pumping the molten metal upward from the holder furnace and injecting the molten metal into the mold cavity under pressure. The piston and cylinder are at least partially submerged in the molten metal when the holder furnace contains the molten metal. The cylinder further includes a molten metal intake for receiving the molten metal into the piston cavity. The molten metal intake is located below the metal oxide film surface of the molten metal when the holder furnace contains the molten metal. A method of injecting molten metal into a mold cavity of a casting mold is also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {4}
}

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