MUMBAI, India, May 30 -- Intellectual Property India has published a patent application (202517027904 A) filed by Posco Co. Ltd., Gyeongsangbuk, Republic of Korea, on March 25, for 'method for manufacturing high-chromium (cr) molten steel, method for manufacturing cast piece, and method for manufacturing press roll.'
Inventor(s) include Chung, Tae In; Park, Cheol Min; Cho, Un Kwan; Jeong, Chang Ki; Yoon, Soon Kwan; and Lee, Joo Dong.
The application for the patent was published on May 30, under issue no. 22/2025.
According to the abstract released by the Intellectual Property India: "An embodiment of the present invention relates to a method for manufacturing high-chromium (Cr) molten steel having a chromium (Cr) content of 4.5 wt% to 5.5 wt%, and the method may comprise the operations of: inserting molten steel into a steel converter used in the process of manufacturing stainless steel; and inputting chromium (Cr)-containing chromium steel alloy into the steel converter such that the content of chromium (Cr) in the molten steel reaches 4.5 wt% to 5.5 wt%. Therefore, according to the embodiments of the present invention, high-chromium (Cr) molten steel can be manufactured by using a steel converter that is used in the steelmaking process of other steel types, without contaminating same. In addition, when raising the temperature of high-chromium (Cr) molten steel or performing degassing to discharge gas, the present invention enables efficiently increasing the temperature of the molten steel and improves degassing efficiency."
The patent application was internationally filed on Feb. 08, 2024, under International application No.PCT/KR2024/001910.
Disclaimer: Curated by HT Syndication.
