Patents Examined by Targe Walker Loyd
  • TIG welding flux for chromium-molybdenum steel and method for using the same
    Patent number: 12251778
    Abstract: A TIG welding flux for chromium-molybdenum steel is used to form a weld bead with high mechanical strength and high fracture toughness between two chromium-molybdenum steel workpieces. The TIG welding flux for chromium-molybdenum steel includes 30-44 wt % of silicon dioxide (SiO2), 20-35 wt % of manganese(IV) oxide (MnO2), 14-24 wt % of chromium(III) oxide (Cr2O3), 9-19 wt % of nickel(III) oxide (Ni2O3), 7-14 wt % of molybdenum trioxide (MoO3) and 5-10 wt % of calcium fluoride (CaF2).
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: March 18, 2025
    Assignee: NATIONAL PINGTUNG UNIVERSITY OF SCIENCE & TECHNOLOGY
    Inventor: Kuang-Hung Tseng