China Baowu Steel Group has filed a patent for a Cu-containing non-oriented electrical steel plate with high cleanliness. The plate includes specific chemical elements and a continuous annealing process for improved magnetic performance. GlobalData’s report on China Baowu Steel Group gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on China Baowu Steel Group, AI for workflow management was a key innovation area identified from patents. China Baowu Steel Group's grant share as of January 2024 was 69%. Grant share is based on the ratio of number of grants to total number of patents.

High-cleanliness cu-containing non-oriented electrical steel plate

Source: United States Patent and Trademark Office (USPTO). Credit: China Baowu Steel Group Corp Ltd

The patent application (Publication Number: US20240011112A1) discloses a Cu-containing non-oriented electrical steel plate with specific chemical compositions and characteristics. The steel plate includes copper (Cu) along with other chemical elements in specific percentages by mass. Additionally, the steel plate must meet certain criteria related to the content of manganese (Mn), sulfur (S), and copper (Cu) to ensure its quality and performance.

Furthermore, the patent application describes a continuous annealing process for the Cu-containing non-oriented electrical steel plate. This process involves specific heating rates, temperatures, and soaking procedures to achieve desired properties such as low iron loss and high magnetic induction. The manufacturing method outlined in the patent includes steps such as smelting, casting, hot rolling, normalizing, cold rolling, continuous annealing, and applying an insulation coating to produce the final non-oriented electrical steel plate. Temperature control operations are crucial at various stages of the manufacturing process to ensure the quality of the steel plate. Overall, the patent application aims to protect the unique composition, characteristics, and manufacturing process of Cu-containing non-oriented electrical steel plates for various industrial applications.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies