MUMBAI, India, July 7 -- Intellectual Property India has published a patent application (202617070014 A) filed by Jfe Steel Corporation on June 04, 2026, for Continuous Casting Method For Cast Slab.

Inventors include Kumagai Atsushi; Kamada Kohei; Ueno Seigo; Matsumoto Takuya; Oyama Satoshi; Kameda Kiyohiro Number; Tanaka Yoshiyuki; Irie Shuhei; Morita Shugo; Toishi Keigo; and Aramaki Norichika.

The application for the patent was published on July 03, 2026, under issue no. 27/2026.

Abstract: Provided is a continuous casting method for a cast slab, the method making it possible to: improve the productivity of a cast slab having unprecedented thickness; and secure surface quality by suppressing cracking of the surface of the cast slab. The continuous casting method for a cast slab is carried out by a continuous casting machine comprising: a mold 6; a vertical unit 8 disposed on the downstream side of the mold 6 in the movement direction of a cast slab 7 which was drawn out from the mold 6; a bending unit 10 disposed on the downstream side of the vertical unit 8 in the movement direction; and a horizontal unit 11 disposed on the downstream side of the bending unit 10 in the movement direction. The surface temperature of the cast slab 7 on the output side of the vertical unit 8 is 700°C to 1200°C. A first cooling density X calculated from the amount of cooling water at the bending unit 10 is no more than a second cooling density Y calculated from the amount of cooling water at the horizontal unit 11.

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