Title:
FLUX-CORED WIRE FOR GAS-SHIELDED ARC WELDING, AND MANUFACTURING METHOD OF WELDED JOINT
Document Type and Number:
Japanese Patent JP2019025524
Kind Code:
A
Abstract:
To provide a flux-cored wire for gas-shielded arc welding and a manufacturing method of a welded joint, with which high mechanical properties and fatigue strength can be imparted to a welded joint, low-temperature cracking resistance is superior, welding workability is high, and welding is possible in all attitudes.SOLUTION: A flux-cored wire for gas-shielded arc welding comprises a steel sheath and flux. The flux contains: 0.10-3.00% of fluoride in total; 4.00-7.50% of Ti oxide; 0.05-2.00% of oxide in total; and 0-0.60% of carbonate in total. A content of CaFis 0-2.00%, and a content of Ca oxide is more than 0% and less than 0.20%. Further, an alloy component falls within a predetermined range, Ceq is 0.35-4.50%, the Ms point is 450°C or lower, and the relationship 3.5≤[Mn]+[Ni]≤20.0 is satisfied in the flux-cored wire for gas-shielded arc welding.SELECTED DRAWING: Figure 1
More Like This:
| WO/2007/106925 | APPARATUS AND METHOD FOR WELDING |
| JPS61286089 | GAS SHIELDED ARC WELDING METHOD |
Inventors:
MATSUO TAKESHI
FUJIMOTO HIRONORI
WATANABE KOTARO
FUJIMOTO HIRONORI
WATANABE KOTARO
Application Number:
JP2017148207A
Publication Date:
February 21, 2019
Filing Date:
July 31, 2017
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP
International Classes:
B23K35/368; B23K9/173; B23K35/30
Domestic Patent References:
| JP2015217393A | 2015-12-07 | |||
| JP2014113615A | 2014-06-26 | |||
| JP2008221231A | 2008-09-25 | |||
| JPH06277877A | 1994-10-04 | |||
| JP2002144082A | 2002-05-21 | |||
| JP2016209901A | 2016-12-15 | |||
| JP2016137508A | 2016-08-04 |
Attorney, Agent or Firm:
Sumio Tanai
Mitsuo Teramoto
Tomoo Katsumata
Hiroshi Yamaguchi
Mitsuo Teramoto
Tomoo Katsumata
Hiroshi Yamaguchi