The Resource Evaluation of spinel refractory interactions with steel in coreless induction furnaces, by José María Soto Perdomo

Evaluation of spinel refractory interactions with steel in coreless induction furnaces, by José María Soto Perdomo

Label
Evaluation of spinel refractory interactions with steel in coreless induction furnaces
Title
Evaluation of spinel refractory interactions with steel in coreless induction furnaces
Statement of responsibility
by José María Soto Perdomo
Creator
Author
Subject
Language
eng
Summary
"Spinel-forming refractories reduce penetration by tightening the bulk of the lining due to the volume expansion resulting from spinel formation. However, excessive volume expansion can result in cracking, penetration of the hot face, and spalling. Sintered spinel, with a lower thermal expansion than alumina and magnesia, is added to reduce the cracking associated with the volume increase from spinel transformation. Tests were carried out to evaluate the differences between the performance in spinel-forming and spinel-containing refractory mixes. Eight refractory linings, one pure magnesia, three magnesia-based spinel-forming and four alumina-based spinel-containing dry vibratable mixes, were tested by melting and holding a low-carbon, low-manganese steel in an induction furnace lined with each mix for four hours at 1600°C. After tapping the steel, lining samples were cut and measured for wear and penetration. For the magnesia-based mixes, an optimum amount of spinel was found to form around 28wt.%. This mix minimized the wear at both the sidewalls and slag line. Further experiments are required to determine the exact composition for optimization. For the alumina-based mixes with spinel additions, there seems to be an optimum ratio of spinel added to spinel formed resulting in a minimum of penetration and wear at the slag line. However, accretions formed at the sidewalls which were thickest for the mix with the ratio of spinel formed to spinel added near the optimum. Therefore, to design an optimum refractory mix, the benefits of higher ratios of spinel added to spinel formed to reduce penetration and wear at the slag line will need to be balanced with the tendency to form accretions at the sidewalls"--Abstract, leaf iii
Member of
Cataloging source
UMR
http://library.link/vocab/creatorDate
1961-
http://library.link/vocab/creatorName
Soto Perdomo, José María
Degree
M.S.
Dissertation year
2003.
Granting institution
University of Missouri--Rolla
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • bibliography
  • theses
http://library.link/vocab/subjectName
  • Refractory materials
  • Induction furnaces
  • Spinel
  • Steel
  • Induction furnaces
  • Refractory materials
  • Spinel
  • Steel
Label
Evaluation of spinel refractory interactions with steel in coreless induction furnaces, by José María Soto Perdomo
Instantiates
Production
Note
  • Vita
  • Typescript
Bibliography note
Includes bibliographical references (leaves 77-84)
Carrier category
volume
Carrier category code
  • nc
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
55090338
Dimensions
29 cm
Extent
xi, 85 leaves
Media category
unmediated
Media MARC source
rdamedia
Media type code
  • n
Other physical details
illustrations
System control number
(OCoLC)55090338
Label
Evaluation of spinel refractory interactions with steel in coreless induction furnaces, by José María Soto Perdomo
Production
Note
  • Vita
  • Typescript
Bibliography note
Includes bibliographical references (leaves 77-84)
Carrier category
volume
Carrier category code
  • nc
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
55090338
Dimensions
29 cm
Extent
xi, 85 leaves
Media category
unmediated
Media MARC source
rdamedia
Media type code
  • n
Other physical details
illustrations
System control number
(OCoLC)55090338

Library Locations

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      400 West 14th Street, Rolla, MO, 65409, US
      37.955220 -91.772210
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