Electric heating – Metal heating – Weld rod structure
Patent
1996-11-04
1999-06-22
Shaw, Clifford C.
Electric heating
Metal heating
Weld rod structure
B23K 3522
Patent
active
059140615
ABSTRACT:
A high nitrogen flux cored wire contains N and nitrogen compound (total converted value of N): 0.05 to 0.30 wt %, with respect to total weight of the wire, in stainless steel sheath and flux, and TiO.sub.2 : 4.0 to 8.0 wt %; ZrO.sub.2 : 0.5 to 4.0 wt %; SiO.sub.2 : 0.05 to 1.5 wt %; Al.sub.2 O.sub.3 : 0.05 to 1.5 wt %; metal fluoride (converted value of F): 0.02 to 0.7 wt %; and metal carbonate: less than or equal to 1.0 wt %; a content of Al.sub.2 O.sub.3 and SiO.sub.2 in total being restricted to be less than or equal to 2.5 wt %, with respect to total weight of the wire, in the flux. Since an appropriate amount of nitrogen is contained in the wire, superior corrosion resistance of the welded metal can be obtained. Also, since an appropriate amounts of the slag forming agent, alloying component and so forth are contained, it becomes possible to achieve high welding workability in all position welding.
REFERENCES:
patent: 3716691 (1973-02-01), Baybrook et al.
patent: 5124529 (1992-06-01), Nishikawa et al.
patent: 5219425 (1993-06-01), Nishikawa et al.
patent: 5378871 (1995-01-01), Nishikawa et al.
Maruyama Toshiharu
Nishiyama Shigeki
Ogawa Tsuneshi
Ozaki Shintaro
Kabushiki Kaisha Kobe Seiko Sho
Shaw Clifford C.
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