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ACID BESSEMER REFRACTORIES *
Author(s) -
Chesters J. H.,
McLean R. J.
Publication year - 1937
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1937.tb19922.x
Subject(s) - ferrous , oxide , metallurgy , melting point , materials science , spall , chemistry , mineralogy , nuclear chemistry , composite material
A bstract A study has been made of the refractories used in the acid Bessemer process. The failure of the tuyères, which generally precedes that of the remainder of the bottom, is found to be due mainly to the attack of ferrous oxide and manganous oxide. The rapid rate of wear is explained by the fact that an addition of 8% of ferrous oxide or manganous oxide reduces the melting point of the tuyère to 1550°C, i.e. , to about the temperature of the molten steel. Laboratory investigations suggest a number of possible ways of increasing bottom life, e.g. , the production and use of ( a ) basic tuyères of high spalling resistance, ( b ) plumbago tuyères, and ( c ) fireclay tuyères of higher alumina content.