Estudio comparativo de la soldabilidad del hierro fundido dúctil con los procesos: soldadura por arco eléctrico con electrodo revestido (SMAW) y soldadura fuerte con torcha (TB)

Abstract

Coalescence of cast iron provides a relative weldability reasons, due to its high carbon and variety of microstructures in white, gray, malleable and nodular cast iron. Ductile cast iron, also called nodular cast iron, or spheroidal graphite has applications in: pipelines wastewater, engine blocks, different types of valves and a variety of mechanical parts; therefore it is imperative to know the most appropriate methods of welding attachment of spheroidal cast iron. Considering that the most common use for applications, is intended for the repair and maintenance thereof, for this reason, this study sheds light on everything that involves welding. It has been established to compare the binding results through two processes of different nature, as are shielded metal arc welding (SMAW); which fuses the filler metal with the base metal, and torch brazing (TB); process that establishes their union by diffusion mechanism. Procedures of different nature, where the predominant result is to determine the best process with a proper welding involving a successful joining of metals.