Continuous casting method for steel and manufacturing method for hypoperitectic steel

TW202639251APending Publication Date: 2026-10-01JFE STEEL CORP
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Patent Information

Application Number
TW115105369
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Priority Date
2025-02-20
Filing Date
2026-02-11
Publication Date
2026-10-01

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Abstract

This invention provides a continuous casting method for peritectic steel that can suppress the occurrence of cracks in steel. The continuous casting method includes a step of adding mold flux to molten steel housed in a mold of a continuous casting machine. The mold contains 20% by mass or more of a metal composed of one of Ni, Cr, Co, and Fe, or an alloy composed of two or more of these metals, and a coating containing 0.1% by mass or more of a metal carbide and a metal nitride is applied to its surface. Before the addition step, the mold flux has a CaO / SiO2 mass ratio of 0.80 to 2.20.
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