Variables that Affect Cope Oxide Inclusions in Steel Castings.
Modern Casting › Vol. 89 Nbr. 11, November 1999
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Variables that Affect Cope Oxide Inclusions in Steel Castings.
Harrison Steel identified melting and pouring variables that affect melt cleanliness in an effort to establish procedures for the elimination of oxide macroinclusions.
In 1995, Harrison Steel Castings Co., a 750-employee carbon and low-alloy green sand steel shop in Attica, Indiana, began collecting data on its melts as part of the Steel Founders' Society of America Clean Cast Steel Technology Program. The segment of the program Harrison was involved in was geared toward identifying the heat-to-heat variables that influence the variation in cope surface oxide inclusions in steel castings. This segment featured in-p]ant experiments to: clear up the unknowns of melt cleanliness, examine the influence of melting and pouring practices on casting quality, and reduce heat-to-heat variation of casting defects. As part of the experiment, Harrison, which uses two 20-ton and one 8.5-ton acid-lined, electric arc furnaces to melt and pour from bottom...See the full content of this document
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