Title:
COATED ARC WELDING ROD AND COATED ARC WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/054737
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a coated arc welding rod with which it is possible to suppress one-sided melting and arc biasing and to cause a molten droplet to migrate smoothly, with which arc stability is satisfactory, and with which excellent welding workability can thus be obtained. This coated arc welding rod includes a core wire and a coating agent coating the core wire, wherein: the coating agent includes at least one of a metal carbonate and a metal fluoride; and the sum of the content (CO2 converted value) CCO2, 75μm of the metal carbonate having a granularity at least equal to 75 μm, and the content (F converted value) CF, 75μm of the metal fluoride having a granularity at least equal to 75 μm is at least equal to 6.0 % by mass relative to the total mass Ccoat, total of the coating agent (including cases in which at least one of CCO2, 75μm and CF, 75μm is 0 % by mass).
Inventors:
TAKAWA MANA
KURIYAMA RYOHEI
KURIYAMA RYOHEI
Application Number:
PCT/JP2019/035593
Publication Date:
March 19, 2020
Filing Date:
September 10, 2019
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
B23K35/365; B23K9/14
Foreign References:
| JPH03264193A | 1991-11-25 | |||
| JPS421406B1 | 1967-01-24 | |||
| JPS591155B2 | 1984-01-10 | |||
| JPS5510364A | 1980-01-24 | |||
| JP2014036992A | 2014-02-27 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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