Compositions: ceramic – Ceramic compositions – Refractory
Patent
1992-05-04
1994-02-08
Bell, Mark L.
Compositions: ceramic
Ceramic compositions
Refractory
501110, 501111, 501128, 501133, 501104, 501105, C04B 3502
Patent
active
052848086
ABSTRACT:
A refractory composition, particularly for application as a dry vibratable refractory for forming the wearable, disposable monolithic lining coating the permanent lining of a tundish or ladle used in molten metal casting processes is disclosed. The composition contains a refractory aggregate, a first bonding agent actuatable at temperatures in the range of from about 300.degree. F. to about 1000.degree. F. to cause the formation of interparticle bonds between aggregate particles, at least one second bonding agent actuatable at temperatures in the range of from about 1000.degree. F. to about 2500.degree. F. to cause further formation of interparticle bonds between aggregate particles, and, optionally, clay. The use of both first and second bonding agents enables installation of the refractory in hot practice, in which vessel preheat temperatures of up to about 2500.degree. F. are utilized.
REFERENCES:
patent: 4508835 (1985-04-01), Kaniuk et al.
patent: 4618079 (1986-10-01), Barnes et al.
patent: 4623131 (1986-11-01), Roberts
Damiano John
Dody (nee Hebron) Julie A.
Martinez Wilfred A.
Bell Mark L.
Marcantoni Paul
Minteq International Inc.
Whitfield Edward J.
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