Lightweight sprayable tundish lining composition

Details Lightweight sprayable tundish lining composition Lightweight sprayable tundish lining composition

1995-03-30

1997-02-11

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501109, 501111, 501119, 501122, 266280, C04B 3503

Patent

active

056020635

ABSTRACT:
The present invention discloses a low density basic refractory lining material with improved resistance to corrosion by molten slag and metal that is especially adapted for use as a disposable liner in molten metal containing vessels. This material incorporates hollow ceramic microspheres of alumina, silica or mixtures thereof, having diameters of between about 5 and 500 microns as a density reducing material. This material may also include a stiffening agent, a set retarding agent, a foaming agent to further reduce the density, a plasticizer, and a low temperature binder. The addition of the ceramic microspheres has been found to provide reduced open porosity, improving resistance to corrosion. Also, the invention relates to methods for applying the disposable lining and vessels which include the lining applied thereon.

REFERENCES:
patent: 4022358 (1977-05-01), Courtenay
patent: 4432799 (1984-02-01), Salazar
patent: 4623131 (1986-11-01), Roberts
patent: 4673697 (1987-06-01), Rowley
patent: 4687752 (1987-08-01), Peters
patent: 4874726 (1989-10-01), Kleeb et al.
patent: 5217929 (1993-06-01), Taft
patent: 5252526 (1993-10-01), Whittmore
patent: 5284296 (1994-02-01), Connors et al.
patent: 5302563 (1994-04-01), Rumpletin et al.
patent: 5382289 (1995-01-01), Bambauer et al.

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