Patents by Inventor Yanqiang ZHAO

Yanqiang ZHAO 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).

  • Beam structure and hybrid welding method thereof
    Patent number: 10730145
    Abstract: A beam structure includes a lower cover plate, an upper cover plate and two side web plates jointed between the upper cover plate and the lower cover plate; wherein the two side web plates are arranged perpendicularly to the upper cover plate and the lower cover plate, respectively, to form a hollow box-shaped structure; rib plates protruding outwardly with a plurality of plug heads are welded within the box-shaped structure; the plug heads are respectively plugged in the upper cover plate, the two side web plates and the lower cover plate, and each plugging joint is fixed by laser-MAG hybrid welding from outside of the box-shaped structure. The method includes: assembling two side web plates, rib plates and a lower cover plate on an upper cover plate to form a box-shaped structure; and welding each of joints from outside of the box-shaped structure by laser-MAG hybrid welding.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: August 4, 2020
    Assignee: CRRC QINGDAO SIFANG CO., LTD.
    Inventors: Xiaohui Han, Yanqiang Zhao, Yonggang Liu, Longxi Liu, Chuanqi Tao, Xifeng Fang, Ruiquan Gao
  • BEAM STRUCTURE AND HYBRID WELDING METHOD THEREOF
    Publication number: 20200023469
    Abstract: A beam structure includes a lower cover plate, an upper cover plate and two side web plates jointed between the upper cover plate and the lower cover plate; wherein the two side web plates are arranged perpendicularly to the upper cover plate and the lower cover plate, respectively, to form a hollow box-shaped structure; rib plates protruding outwardly with a plurality of plug heads are welded within the box-shaped structure; the plug heads are respectively plugged in the upper cover plate, the two side web plates and the lower cover plate, and each plugging joint is fixed by laser-MAG hybrid welding from outside of the box-shaped structure. The method includes: assembling two side web plates, rib plates and a lower cover plate on an upper cover plate to form a box-shaped structure; and welding each of joints from outside of the box-shaped structure by laser-MAG hybrid welding.
    Type: Application
    Filed: August 25, 2017
    Publication date: January 23, 2020
    Inventors: Xiaohui HAN, Yanqiang ZHAO, Yonggang LIU, Longxi LIU, Chuanqi TAO, Xifeng FANG, Ruiquan GAO