Corrosion-resistant brick and method for manufacturing same
AssigneeMitsubishi Materials Corporation
InventorsKenichi Yamaguchi, Yusuke Kimura
Life of this patent
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Abstract
The corrosion-resistant brick is a corrosion-resistant brick obtained by, in an Al—Cr-based brick, an Al—Mg-based brick and a Cr—Mg-based brick, providing a layer of magnetite powder on a brick surface, and heating and melting the magnetite powder so as to react the respective components of the brick with Fe, thereby forming a coating layer which is a ternary oxide of the brick components and Fe, and is made of a spinel solid solution having a melting point of 1600° C. or higher.
Claims6
A corrosion-resistant brick comprising:
- a main body and a coating layer formed on a surface of the main body, wherein
- the main body is any one of an Al—Cr-based brick, an Al—Mg-based brick and a Cr—Mg-based brick,
- the coating layer is a ternary oxide of Fe and each component of the Al—Cr-based brick, the Al—Mg-based brick or the Cr—Mg-based brick, and
- the coating layer is made of a spinel solid solution having a melting point of 1600° C. or higher.
A method for manufacturing a corrosion-resistant brick comprising:
- a step of providing a layer of magnetite powder on a surface of a brick to be fired, during manufacturing of the brick, the brick include any one of an Al—Cr-based brick, an Al—Mg-based brick and a Cr—Mg-based brick;
- a step of heating and melting the magnetite powder, so as to react Fe and components of Al—Cr-based brick, an Al—Mg-based brick or a Cr—Mg-based brick;
- and
- a step of forming a coating layer on a surface on a main body in the corrosion-resistant brick,
- wherein the coating layer is formed of a ternary oxide of Fe and the components of the brick, and is made of a spinel solid solution having a melting point of 1600° C. or higher.
A method for manufacturing a corrosion-resistant brick comprising:
- a step of providing a layer of magnetite powder on a brick surface to be fired, in an Al—Cr-based brick, an Al—Mg-based brick or a Cr—Mg-based brick, during manufacturing of the brick,
- a step of heating and melting the magnetite powder, so as to react components of the brick and Fe, and
- a step of forming a coating layer which is formed of a ternary oxide of the components of the brick and Fe, and is made of a spinel solid solution having a melting point of 1600° C. or higher.
Dependencies are inferred from the claim text.