Method for manufacturing continuous casting mold
AssigneeJfe Steel Corporation
InventorsTomoya Odagaki, Kohei Furumai, Norichika Aramaki, Kohei Ishida, Daiki Yanagida
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Abstract
A method for manufacturing a continuous casting mold in which cracking and spalling are less likely to occur in a filling laminate. The method includes filling a plurality of concave portions formed on an inner surface of a copper-made mold copper plate or a copper alloy-made mold copper plate used for continuously casting steel at least in a region including a meniscus position of molten steel in a casting process with a metal having a thermal conductivity different from that of the mold copper plate.
Claims6
A method for manufacturing a continuous casting mold, the method comprising:
- filling a plurality of concave portions formed on an inner surface of a copper-made mold copper plate or a copper alloy-made mold copper plate used for continuously casting steel at least in a region including a meniscus position of molten steel in a casting process with a metal having a thermal conductivity different from a thermal conductivity of the mold copper plate,
- wherein the metal filling the concave portion is a laminate formed of two or more layers such that the layers are stacked on top of one another from a bottom of each of the concave portions to an opening of the concave portion in a direction normal to an inner surface of the mold, and
- each of a second layer and layers above the second layer is a nickel layer or a nickel-based alloy layer having a thickness in a range of 0.2 mm to 2 mm formed by radiating a laser beam while feeding nickel powder or nickel-based alloy powder to a position irradiated with the laser beam to melt and solidify the nickel powder or the nickel-based alloy powder, and
- the second layer and the layers above the second layer form a multi-layered built-up filling laminate having a total thickness in a range of 1 mm to 10 mm.
Dependencies are inferred from the claim text.