Verfahren zur Herstellung von Cu-Sn-Haltigem Stahl

Details

Veröffentlichungs-Nr.

EP4759457

Anmeldetag

6. September 2024

Veröffentlichung

27. März 2025

Rechtsraum

EP

Abstract

There is provided a method for producing a Cu-Sn-containing steel which, even in hot working using a heating furnace with a low heating capacity, can prevent surface cracking of a Cu-Sn-containing steel and avoid troubles in the heating furnace, thus enabling stable production of the steel. The method for producing a Cu-Sn-containing steel includes: a hot heating step of attaching a first flux, which includes at least one of B<2>O<3>, P<2>O<5>, K<2>O, PbO, Na<2>O-FeO, Na<2>O-SiO<2>, Na<2>O-TiO<2>, and Li<2>O-SiO<2> as a component, and has a liquid fraction of 10 mass % or more at 1000°C, to a surface of a Cu-Sn-containing slab such that the mass of the first flux per unit area of the surface of the slab falls within the range of not less than 50 g/m<2> and not more than 5000 g/m<2>, and then attaching a second flux, which has a liquid fraction of 0 mass % at 1400°C or lower, to the surface of the Cu-Sn-containing slab such that the mass of the second flux per unit area of the surface of the slab falls within the range of not less than 50 g/m<2> and not more than 5000 g/m<2>, and heating the Cu-Sn-containing slab at a temperature of not less than 1000°C and not more than 1400°C; and a hot working step of hot-working the Cu-Sn-containing slab.

Anmelder

Firma

JFE Steel Corporation

Land

🇯🇵 Japan