A study of the effect of magnetite additions to shell molds on the surface quality of low carbon steel castings

Author

Robert C. Tooke

Abstract

"Shell molds containing additions of ten to fifty percent magnetite, Fe₃O₄, of various particle sizes were cured by induction heating. For comparison, regular shell molds were made using silica and zircon sand. Low carbon steel was cast into all of the molds.

Castings produced from the regular shell molds exhibited poor surfaces due to mold expansion. Magnetite additions eliminated the expansion defects from the casting surfaces.

Excellent surfaces were obtained on the low carbon steel castings with proper selection of the magnetite particle size and the percent of magnetite added. Improper combinations of size and amount of magnetite resulted in defects associated with the magnetite additions to the mold material"--Abstract, page ii.

Advisor(s)

Wolf, Robert V., 1929-1999

Committee Member(s)

Kisslinger, Fred, 1919-2010
Davidson, Robert F., 1911-1971
Culp, Archie W., Jr.

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Metallurgical Engineering

Publisher

University of Missouri at Rolla

Publication Date

1966

Pagination

ix, 96 pages

Note about bibliography

Includes bibliographical references (pages 81-84).

Rights

© 1966 Robert C. Tooke, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Shell molding (Founding)Surfaces (Technology)Steel castings -- AdditivesMagnetite

Thesis Number

T 1932

Print OCLC #

5977495

Electronic OCLC #

919274827

Recommended Citation

Tooke, Robert C., "A study of the effect of magnetite additions to shell molds on the surface quality of low carbon steel castings" (1966). Masters Theses. 2968.
https://scholarsmine.mst.edu/masters_theses/2968