Coatings for receptacles
AssigneeEdw. C. Levy Co.
InventorMark H. Gramke
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Abstract
The present invention relates to a coating for metallurgical receptacles comprising a slurry of slag fines, lime and water. The coating has proven effective at releasing the skull remaining in metallurgical receptacles after the molten metal has been tapped off and the slag layer has been poured off. The invention also relates to a process for coating metallurgical receptacles with the coating composition of the present invention.
Claims7
A composition for coating receptacles used for containing molten metal comprising a mixture of slag fines, lime and water to form a slurry, wherein the ratio of each constituent on a weight basis include from between about 0.8 to about 1.2 kg of slag fines;
- from between about 0.8 to about 1.2 kg of lime and from between about 2.6 to about 3.9 kg of water, based on a total weight of between 4.2 kg to about 6.3 kg for the composition.
A process of coating receptacles used for containing molten metals, said process comprising the steps of:
- (a) mixing a slurry comprising slag fines, lime and water, wherein the ratio of each constituent on a weight basis include from between about 0.8 to about 1.2 kg of slag fines;
- from between about 0.8 to about 1.2 kg of lime and from between about 2.6 to about 3.9 kg of water, based on a total weight of between 4.2 kg to about 6.3 kg for the slurry;
- (b) heating a receptacle for receiving molten metal to a temperature of between about 400.degree. to about 800.degree. C.;
- and
- (c) applying the slurry of step (a) to the heated receptacle walls.
A composition for coating receptacles used for containing molten metal comprising a mixture of slag fines, lime and water to form a slurry, said slag fines and lime being present in proportions which vary by no more than 0.4 kg based on a total composition weight of between about 4.2 kg to about 6.3 kg, with a water constituency of at least 2.6 kgs being present upon formation of the slurry.
Dependencies are inferred from the claim text.