Patents by Inventor Xuejun Lyu

Xuejun Lyu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250109466
    Abstract: Disclosed in the present invention is a non-oriented electrical steel plate with good magnetic performance. The non-oriented electrical steel plate contains Fe and inevitable impurities, and further contains the following chemical elements, in percentage by mass: 0<C?0.0015%, Si: 0.2-1.8%, Mn: 0.2-0.4%, Al: 0.2-0.6%, V: 0.002-0.005%, and N<0.002%. In addition, further disclosed in the present invention is a manufacturing method for the non-oriented electrical steel plate with good magnetic performance. The manufacturing method comprises the steps of: (1) smelting and casting: (2) hot rolling, wherein a steel coil obtained after the hot rolling is directly introduced to the next step without being subjected to normalizing annealing or cover annealing; (3) acid pickling; (4) cold rolling; and (5) continuous annealing, wherein the steel plate is heated to a target soaking temperature at a heating rate of 50-5000° C./s after the cold rolling.
    Type: Application
    Filed: January 5, 2023
    Publication date: April 3, 2025
    Inventors: Guobao Li, Feng Zhang, Xianshi Fang, Bo Wang, Xuejun Lyu