| 摘要 |
<p>A consumable electrode (40, 100) for use in arc welding applications, e.g., gas shielded metal arc welding (GMAW) or gas shielded flux core arc welding (FCAW-G) applications, on a workpiece (50) with a metal coating (52), e.g., zinc. The electrode (40, 100) includes a metal sheath (110) surrounding a core (120), and filler materials are disposed in the core (120). The filler materials include fluxing materials (140) that facilitate a partitioning of the coating (52) of the workpiece (50) into a slag formed at least in part by the fluxing materials. The fluxing materials include deoxidizing materials in a range of 2% to 6% by weight of the electrode (40, 100). The deoxidizing materials can include aluminum and/or magnesium. To reduce fume formation, the concentration of the slag forming materials in the core (120) is limited to that needed to partition enough zinc away from the weld/slag interface to produce a weld with little or no porosity.</p> |
