| 摘要 |
A metal cored electrode for CO2 gas shielded welding has 5% to 30% core ingredients in a ferrous metal tube with a seam. The core includes, based upon the weight of the electrode: from about 0.01% to about 0.5% cesium, from about 0.1 to about 3.0 cesium/other alkali metal(s) on a weight basis, the other alkali metals selected from the group consisting of lithium, sodium, potassium and rubidium; and from about 0.3% to about 10% of alloying elements selected from silicon, manganese, and optionally titanium. columbium, aluminum, nickel, chromium and cobalt; up to 0.01% boron; and balance iron together with incidental impurities; The electrodes are used in reverse and straight polarity DC and AC CO2 gas shielded welding processes for providing stable arcs and reduced spatter levels as well as high quality weld deposits.
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