Obtención de fundente aglomerado para el recargue, mediante SAW, utilizando mezclas pirometalúrgicas en su conformación
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Santana Ramírez, Miguel A.
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Universidad Central "Marta Abreu" de Las Villas. Facultad de Ingeniería Mecánica e Industrial. Departamento de Ingeniería Industrial
Resumen
En el presente trabajo se estudia la obtención de un fundente aglomerado aleado para el recargue mediante soldadura por arco sumergido (SAW). Para el estudio de conformación se utiliza un diseño de experimentos de tipo Mc Lean Anderson, variándose en la mezcla los componentes de la carga de aleación (cromita, pirolusita, grafito y aluminio) y la matriz, estos componentes son aglomerados utilizando una solución de silicato de sodio. Como resultado del diseño se obtuvieron 12 mezclas de fundente de las cuales 7 fueron evaluadas en el proceso de soldadura. De los 7 depósitos obtenidos se seleccionaron 4 como los de mejor comportamiento tecnológico, los que fueron caracterizados químicamente y se les determinó la dureza, así como los parámetros geométricos de los cordones de soldadura y la estructura metalográfica de cada uno de ellos
In this work, we study the production of alloyed agglomerate flux for submerged arc welding (SAW). For the conformation study, a Mc Lean Anderson type of experimental design is used, the components of the alloy filler (chromite, pyrolite, graphite and aluminum) and the matrix being mixed, these components are agglomerated using a silicate solution of sodium. As a result of the design, 12 flux blends were obtained, of which 7 were evaluated in the welding process. Of the 7 deposits obtained, 4 were selected as those with the best technological performance, which were characterized chemically and were determined the hardness, as well as the geometric parameters of the weld beads and the metallographic structure of each of them.
In this work, we study the production of alloyed agglomerate flux for submerged arc welding (SAW). For the conformation study, a Mc Lean Anderson type of experimental design is used, the components of the alloy filler (chromite, pyrolite, graphite and aluminum) and the matrix being mixed, these components are agglomerated using a silicate solution of sodium. As a result of the design, 12 flux blends were obtained, of which 7 were evaluated in the welding process. Of the 7 deposits obtained, 4 were selected as those with the best technological performance, which were characterized chemically and were determined the hardness, as well as the geometric parameters of the weld beads and the metallographic structure of each of them.