Abstract Special welding electrode consisting of a composite wire and adapted for use in CO2 shield gas arc welding, said welding electrode comprising a tubular outer casing of mild steel having a central hollow and a filler enclosed in said central hollow and composed of ferromanganese in an amount not less than 1.0 percent but not more than 2.2 percent based on manganese of the weight of the electrode, ferrosilicon in an amount not less than 0.3 percent but not more than 0.9 percent based on silicon of the weight of the electrode, ferroaluminum in an amount not less than 0.05 percent but not more than 0.8 percent based on aluminum of the weight of the electrode, an arc stabilizer consisting of a salt or oxide of alkali metal in an amount not less than 0.1 percent but not more than 3.0 percent of the weight of the electrode and the remainder of iron powder which may be added as required.
A consumable composite welding electrode adapted for use in arc welding in a shield of gaseous carbon dioxide, said welding electrode comprising a hollow outer casing of mild steel and a filler enclosed in said hollow outer casing, said filler being composed of ferromanganese in an amount not less than 1 percent but not more than 2.2 percent, based on manganese, of the weight of the electrode, ferrosilicon in an amount not less than 0.3 percent but not more than 0.9 percent, based on silicon, of the weight of the electrode, ferroaluminum in an amount not less than 0.05 percent but not more than 0.8 percent, based on aluminum, of the weight of the electrode, an arc stabilizer consisting of a salt or oxide of alkali metal in an amount of not less than 0.1 percent but not more than 3 percent of the weight of the electrode and the remainder of said electrode being metalic iron or alloy thereof.
Claim 2
Dependent Claim
160 words
A consumable composite welding electrode adapted for use in arc welding in a shield of gaseous carbon dioxide, said welding electrode comprising a hollow outer casing of mild steel and a filler enclosed in said hollow outer casing, said filler being composed of ferromanganese in an amount not less than 1 percent but not more than 2.2 percent, based on manganese, of the weight of the electrode, ferrosilicon in an amount not less than 0.3 percent but not more than 0.9 percent, based on silicon, of the weight of the electrode, ferroaluminum in an amount not less than 0.05 percent but not more than 0.8 percent, based on aluminum, of the weight of the electrode, an arc stabilizer consisting of a salt or oxide of alkali metal in an amount of not less than 0.1 percent but not more than 3 percent of the weight of the electrode and the remainder of said electrode being metalic iron or alloy thereof.