Stock material or miscellaneous articles – All metal or with adjacent metals – Having metal particles
Patent
1981-11-20
1984-01-17
Hunt, Brooks H.
Stock material or miscellaneous articles
All metal or with adjacent metals
Having metal particles
428553, 428558, 428560, 428564, 148 23, 148 24, 148 26, 75257, 21914523, 21914622, 21914623, 21914631, 21914641, 21914632, B22F 704, B23K 3532
Patent
active
044264283
ABSTRACT:
A nickel-base welding electrode is provided comprising a nickel core and a metallic powder-laden flux coating bonded thereto, the total composition of the electrode comprising about 40% to 50% by weight of the nickel core and about 60% to 50% by weight of the coating. The coating contains as fluxes about 18% to 30% titanium dioxide, about 8% to 16% calcium fluoride, about 1% to 3% iron carbonate, about 1.5% to 4% calcium carbonate, about 2% to 6% calcium-magnesium carbonate, and contains as the powdered metals about 20% to 30% chromium, about 3% to 8% manganese, about 1% to 4% molybdenum, about 1% to 5% niobium, about 8% to 18% iron, 0% to about 6% nickel, up to 1% graphite, and as extrusion aids about 1% to 4% clay and about 1% to 5% organic extrusion aid material.
The flux in the coating is mixed with a bonding agent at a ratio of dry flux to bonding agent of about 5:1 to 10:1, the composition of the bonding agent being about 2% to 10% potassium carbonate, about 40% to 70% potassium silicate, about 1% to 6% potassium hydroxide, about 20% to 35% sodium silicate and 0 to about 15% water. The composition relationship of the metal powder in the flux to the nickel core is such as to provide a weld deposit, taking into account metal losses due to oxidation, containing less than about 0.25% C, about 10% to 20% chromium, about 5% to 12% iron, about 0.5% to 2.5% niobium, up to about 1% silicon, about 2% to 5% manganese, up to about 5% molybdenum and the balance essentially nickel.
REFERENCES:
patent: 1978316 (1934-10-01), Miller
patent: 2219462 (1938-03-01), Wissler
patent: 2544334 (1944-11-01), Linnert
patent: 2632835 (1952-01-01), Wasserman
patent: 4103067 (1978-07-01), Jackson et al.
Welding Handbook, Section 4, Fifth Edition, Ed. by A. L. Phillips, 1966.
Gamberg Edward R.
Kammer Paul A.
Eutectic Corporation
Hunt Brooks H.
Okamoto Joel P.
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