WELDIRECTORY CAST IRON AND ALUMINUM ARC WELDING ELECTRODES Softweld ®, Ferroweld® and Aluminweld®
CAST IRON / ALUMINUM ADVANTAGE LINCOLN SOFTWELD® 55 Ni (ENiFe-CI) A versatile, all-purpose electrode for repairing and reclaiming gray cast iron. It is recommended for repairing heavy sections and phosphorous bearing castings. Welds made with this electrode are strong and ductile. Multi-pass welds are typically machinable. Operational characteristics are excellent.
GUIDELINES FOR WELDING CAST IRON (CONT.) blackboard chalk. After a few minutes, even cracks not visible to the naked eye are evident because the kerosene from the cracks bleeds back through the chalk. Preparation for Welding - For weld soundness, the cracks must be properly prepared before welding. Drill a hole at the end of each crack to prevent it from extending further. Grind, chip, machine or saw the crack to create a bevel.
GUIDELINES FOR WELDING CAST IRON (CONT.) ALUMINUM ARC WELDING ELECTRODES Hold the electrode almost perpendicular to the work at all times to obtain even melt-off of the flux. Point the arc directly into the joint so both edges are properly and uniformly heated. good procedures are followed. If the casting must be water tight, this can be a problem. However, leaking can usually be eliminated with some sort of sealing compound or they may rust shut very soon after being returned to service.
