MUMBAI, India, July 7 -- Intellectual Property India has published a patent application (202617070552 A) filed by Jfe Steel Corporation on June 05, 2026, for Immersion Nozzle For Continuous Casting, And Continuous Casting Method For Steel.
Inventors include Suda Atsuki; Ohno Hiroyuki; Aramaki Norichika; and Kishimoto Gen Number.
The application for the patent was published on July 03, 2026, under issue no. 27/2026.
Abstract: Provided is an immersion nozzle for continuous casting capable of suppressing entrainment of mold powder into molten steel. Provided is an immersion nozzle for injecting molten steel from a tundish into a mold of a continuous casting machine, the immersion nozzle being characterized by comprising: a molten steel flow straightening part that is immersed in the molten steel, is exposed above the molten steel surface formed inside the mold, and is provided on the molten steel surface; and a tubular part that penetrates the molten steel flow straightening part in the vertical direction and discharges the molten steel to the inside of the mold, the molten steel flow straightening part having a continuous shape in which, at least in a prescribed range in the casting direction of the molten steel from the molten steel molten metal surface, the cross-sectional shape of the outer periphery of the molten steel flow straightening part is elliptical or streamlined having a major axis in the width direction of the mold, and the ratio of the minor axis b to the major axis a in the cross-sectional shape of the outer periphery of the molten steel flow straightening part is 0.95 or less, and the cross-sectional shape of the outer periphery of the tubular part being circular or elliptical in the width direction of the mold, the ratio of ß to a in said shape being 0.90-1.1, where a is the length of one axis substantially parallel to the long side of the mold, and ß is the length of another axis orthogonal to said one axis.
Disclaimer: Curated by HT Syndication.
