The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 26, 2025
Filed:
Jan. 31, 2023
National Pingtung University of Science & Technology, Pingtung County, TW;
Kuang-Hung Tseng, Pingtung County, TW;
NATIONAL PINGTUNG UNIVERSITY OF SCIENCE & TECHNOLOGY, Pingtung County, TW;
Abstract
A method of using a tungsten inert gas (TIG) welding flux for super duplex stainless steel (SDSS) is used to solve the problems of low weld depth/width ratio, low corrosion resistance, and arc blow existing in the conventional TIG welding flux for duplex stainless steel. The TIG welding flux for SDSS includes 20-30 wt % of silicon dioxide (SiO), 20-25 wt % of titanium dioxide (TiO), 15-20 wt % of vanadium dioxide (VO), 10-15 wt % of molybdenum trioxide (MoO), 10-15 wt % of zirconium diboride (ZrB), 5-10 wt % of aluminum nitride (AlN), 5-10 wt % of manganese carbonate (MnCO) and 5-10 wt % of nickel carbonate (NiCO).