C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/66 (2006.01) B22D 41/02 (2006.01) C04B 35/06 (2006.01) C04B 35/63 (2006.01)
Patent
CA 2047743
A process for coating a tundish for continuous metal casting, in particular, for steel casting, according to which the refractory wear-resistant coating layer is applied in an aqueous form, characterized in that said wear-resistant refractory coating is composed of crude natural dolomite or crude natural calcite or a mixture thereof, in that its grain size is between 0 and 5 mm, in that it incorporates within the coating a binder in the proportions 0.5 to 5 % by weight and a mineral or organic plasticizer in the proportions of 0.2 to 3 % by weight, and in that decarbonization of the coating is effected after application, during drying and curing thereof. The invention also concerns a tundish having such a coating as well as the refractory coating itself.
2047743 9009970 PCTABS00102 L'invention concerne un procédé de revêtement d'un répartiteur de coulée continue des métaux, notamment d'acier, selon lequel on met en place la couche de revêtement réfractaire d'usure sous forme aqueuse, caractérisé en ce que ledit revêtement réfractaire d'usure est composé de dolomie naturelle crue ou de calcite naturelle crue ou d'un mélange de ces deux matériaux, en ce que sa granulométrie est comprise entre 0 et 5 mm, en ce qu'on incorpore à ce revêtement un liant dans des proportions de 0,5 à 5 % en poids et un plastifiant minéral ou organique dans des proportions de 0,2 à 3 % en poids, et en ce qu'on procède à la décarbonatation de ce revêtement après sa mise en place, lors de son séchage et de sa cuisson. L'invention concerne également un répartiteur ainsi revêtu, ainsi que le revêtement réfractaire lui-même.
Provost Gilbert J.
Sollac
Swabey Ogilvy Renault
LandOfFree
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