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:
Jul. 01, 2025
Filed:
Sep. 23, 2024
Harbin Welding Institute Limited Company, Harbin, CN;
Kai Xu, Harbin, CN;
Pengbo Wu, Harbin, CN;
Xiao Guo, Harbin, CN;
Wei Feng, Harbin, CN;
Shubin Huo, Harbin, CN;
Shaowei Chen, Harbin, CN;
Bo Chen, Harbin, CN;
Hanmin Wu, Harbin, CN;
Yiming Ma, Harbin, CN;
Laibo Sun, Harbin, CN;
Chao Wei, Harbin, CN;
Naiwen Fang, Harbin, CN;
HARBIN WELDING INSTITUTE LIMITED COMPANY, Harbin, CN;
Abstract
Disclosed are a flux-cored welding strip and a welding flux used in combination for submerged arc welding of a duplex stainless steel, and preparation methods and use thereof. The flux-cored welding strip is composed of a stainless steel shell and a flux core powder, the flux core powder consisting of the following components: in percentages by mass, ferrochrome nitride: 0.70% to 1.0%, a chromium powder: 26% to 27%, a nickel powder: 4.5% to 5.5%, a molybdenum powder: 3.7% to 4.2%, a manganese powder: 2.55% to 2.65%, a copper powder: 1.45% to 1.55%, a ferrosilicon powder: 1.1% to 1.2%, a tungsten powder: 1.0% to 1.15%, a niobium powder: 0.25% to 0.35%, an aluminum powder: 0.35% to 0.55%, a rhenium powder: 0.35% to 0.40%, a lanthanum powder: 0.1% to 0.15%, and a balance being an iron powder.