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Title: Low-head feeding system for thin section castings

Abstract

A feed system is provided for conveying molten metal to a thin section caster having mold surfaces moving exclusively in the direction of casting. The feed system has a passage of circular cross section adjacent to one end thereof for receiving molten metal and a rectangular cross section at the delivery end thereof adjacent to the caster. The feed system is designed for supplying molten metal to the caster at low pressure for "closed-pool" type caster operation. The point of highest elevation in the metal flow passage of the feed system is on the upper surface of a transition portion where the cross section changes from circular to rectangular adjacent to the nozzle. The level or height of the high point above the centerline of the nozzle exit is selected so as to be less than the pressure of the metal measured in inches at the nozzle exit. This feature enables the maintenance of positive pressure in the metal within the feed system so that ingress of air into the metal is prevented.

Inventors:
 [1];  [1];  [1];  [1];  [2];  [3];  [3];  [1]
  1. (Allegheny County, PA)
  2. (Northhampton County, PA)
  3. (Lehigh County, PA)
Issue Date:
Research Org.:
USX/BETHLEHEM STEEL CORP
OSTI Identifier:
867328
Patent Number(s):
4915270
Assignee:
USX Corporation (Pittsburgh, PA) IDO
DOE Contract Number:  
FC07-84ID12545
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
low-head; feeding; section; castings; feed; provided; conveying; molten; metal; caster; mold; surfaces; moving; exclusively; direction; casting; passage; circular; adjacent; receiving; rectangular; delivery; designed; supplying; pressure; closed-pool; type; operation; elevation; flow; upper; surface; transition; portion; changes; nozzle; level; height; centerline; exit; selected; measured; inches; feature; enables; maintenance; positive; ingress; air; prevented; nozzle exit; mold surfaces; metal flow; flow passage; upper surface; molten metal; receiving molten; feature enables; positive pressure; transition portion; mold surface; /222/164/

Citation Formats

Daniel, Sabah S., Kleeb, Thomas R., Lewis, Thomas W., McDermott, John F., Ozgu, Mustafa R., Padfield, Ralph C., Rego, Donovan N., and Vassilicos, Achilles. Low-head feeding system for thin section castings. United States: N. p., 1990. Web.
Daniel, Sabah S., Kleeb, Thomas R., Lewis, Thomas W., McDermott, John F., Ozgu, Mustafa R., Padfield, Ralph C., Rego, Donovan N., & Vassilicos, Achilles. Low-head feeding system for thin section castings. United States.
Daniel, Sabah S., Kleeb, Thomas R., Lewis, Thomas W., McDermott, John F., Ozgu, Mustafa R., Padfield, Ralph C., Rego, Donovan N., and Vassilicos, Achilles. Mon . "Low-head feeding system for thin section castings". United States. https://www.osti.gov/servlets/purl/867328.
@article{osti_867328,
title = {Low-head feeding system for thin section castings},
author = {Daniel, Sabah S. and Kleeb, Thomas R. and Lewis, Thomas W. and McDermott, John F. and Ozgu, Mustafa R. and Padfield, Ralph C. and Rego, Donovan N. and Vassilicos, Achilles},
abstractNote = {A feed system is provided for conveying molten metal to a thin section caster having mold surfaces moving exclusively in the direction of casting. The feed system has a passage of circular cross section adjacent to one end thereof for receiving molten metal and a rectangular cross section at the delivery end thereof adjacent to the caster. The feed system is designed for supplying molten metal to the caster at low pressure for "closed-pool" type caster operation. The point of highest elevation in the metal flow passage of the feed system is on the upper surface of a transition portion where the cross section changes from circular to rectangular adjacent to the nozzle. The level or height of the high point above the centerline of the nozzle exit is selected so as to be less than the pressure of the metal measured in inches at the nozzle exit. This feature enables the maintenance of positive pressure in the metal within the feed system so that ingress of air into the metal is prevented.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

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