Warmwalzverfahren, Verfahren zur Herstellung eines Kornorientierten Elektromagnetischen Stahlblechs und Warmgewalzte Spule für Kornorientiertes Elektromagnetisches Stahlblech

Details

Veröffentlichungs-Nr.

EP4772655

Anmeldetag

18. November 2024

Veröffentlichung

30. Mai 2025

Rechtsraum

EP

Abstract

A method of hot rolling that can produce hot-rolled coils with few surface defects. A method of hot rolling in which a steel slab (1) is heated in a heating furnace and then hot-rolled. In a temperature range (T) in which a temperature of the steel slab (1) in the heating furnace is 950 °C or higher and 1150 °C or lower, when heating the steel slab (1) having a chemical composition in which a y phase ratio is 20 mol% or less at 1050 °C, which is the median value of the temperature range (T), a distance between skids (2) supporting the steel slab (1) in the heating furnace is more than 1.1 m, and an average oxygen concentration in the heating furnace in the temperature range (T) is 5.0 vol% or less.

Anmelder

Firma

JFE Steel Corporation

Land

🇯🇵 Japan