Process and welding rod for the welding of ductile cast iron

Details Process and welding rod for the welding of ductile cast iron Process and welding rod for the welding of ductile cast iron

1975-09-12

1977-10-18

Tolin, Gerald P.

Electric heating

Metal heating

By arc

148 26, 219146, B23K 3522

Patent

active

040547779

ABSTRACT:
A process for the electric arc welding of cast iron, specifically ductile cast iron, is provided which comprises electrically applying to the cast iron to be welded, at welding temperatures, a welding material obtained by simultaneously melting a first and a second welding rod; the first welding rod containing, by weight, about 0.085 to about 0.095 percent carbon, about 0.0285 to about 0.0315 percent chromium, about 0.0095 to about 0.0105 percent nickel, about 0.0095 to about 0.0105 percent molybdenum, about 0.618 to about 0.672 percent manganese, about 0.01615 to about 0.01785 percent sulphur, about 0.01805 to about 0.01995 percent phosphorus, about 2.50 percent silicon, with the balance being iron plus incidental impurities, the first welding rod being provided with a low hydrogen fluxing material; the second welding rod containing, by weight, about 2.85 percent carbon, about 0.01 percent chromium, about 0.10 percent nickel, about 0.05 percent molybdenum, about 0.50 percent manganese, about 0.08 percent sulphur, about 0.50 percent phosphorus, about 2.50 percent silicon, with the balance being iron plus incidental impurities.

REFERENCES:
patent: 1352534 (1920-09-01), Russell
patent: 1502789 (1924-07-01), Lincoln
patent: 2931886 (1960-04-01), Nunnelee et al.
patent: 3023302 (1962-02-01), Kennedy et al.
patent: 3114033 (1963-12-01), Elster et al.
patent: 3301997 (1967-01-01), Semenchuk
patent: 3471310 (1969-10-01), Joseph et al.
patent: 3860420 (1975-01-01), Nayar

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