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Title: Molten metal feed system controlled with a traveling magnetic field

Abstract

A continuous metal casting system in which the feed of molten metal is controlled by means of a linear induction motor capable of producing a magnetic traveling wave in a duct that connects a reservoir of molten metal to a caster. The linear induction motor produces a traveling magnetic wave in the duct in opposition to the pressure exerted by the head of molten metal in the reservoir so that p.sub.c =p.sub.g -p.sub.m where p.sub.c is the desired pressure in the caster, p.sub.g is the gravitational pressure in the duct exerted by the force of the head of molten metal in the reservoir, and p.sub.m is the electromagnetic pressure exerted by the force of the magnetic field traveling wave produced by the linear induction motor. The invention also includes feedback loops to the linear induction motor to control the casting pressure in response to measured characteristics of the metal being cast.

Inventors:
 [1]
  1. (Palos Park, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
867709
Patent Number(s):
4993477
Assignee:
United States of America as represented by United States (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
molten; metal; feed; controlled; traveling; magnetic; field; continuous; casting; means; linear; induction; motor; capable; producing; wave; duct; connects; reservoir; caster; produces; opposition; pressure; exerted; head; -p; desired; gravitational; force; electromagnetic; produced; feedback; loops; control; response; measured; characteristics; cast; metal casting; magnetic wave; induction motor; traveling wave; feedback loop; linear induction; molten metal; magnetic field; pressure exerted; wave produced; motor capable; traveling magnetic; continuous metal; feedback loops; desired pressure; metal feed; magnetic traveling; magnetic pressure; /164/

Citation Formats

Praeg, Walter F. Molten metal feed system controlled with a traveling magnetic field. United States: N. p., 1991. Web.
Praeg, Walter F. Molten metal feed system controlled with a traveling magnetic field. United States.
Praeg, Walter F. Tue . "Molten metal feed system controlled with a traveling magnetic field". United States. https://www.osti.gov/servlets/purl/867709.
@article{osti_867709,
title = {Molten metal feed system controlled with a traveling magnetic field},
author = {Praeg, Walter F.},
abstractNote = {A continuous metal casting system in which the feed of molten metal is controlled by means of a linear induction motor capable of producing a magnetic traveling wave in a duct that connects a reservoir of molten metal to a caster. The linear induction motor produces a traveling magnetic wave in the duct in opposition to the pressure exerted by the head of molten metal in the reservoir so that p.sub.c =p.sub.g -p.sub.m where p.sub.c is the desired pressure in the caster, p.sub.g is the gravitational pressure in the duct exerted by the force of the head of molten metal in the reservoir, and p.sub.m is the electromagnetic pressure exerted by the force of the magnetic field traveling wave produced by the linear induction motor. The invention also includes feedback loops to the linear induction motor to control the casting pressure in response to measured characteristics of the metal being cast.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}

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